|
| 1 | +--- |
| 2 | +layout: post |
| 3 | +type: socratic |
| 4 | +title: "Socratic Seminar 135" |
| 5 | +meetup: "https://www.meetup.com/bitdevsnyc/events/300543944/" |
| 6 | +--- |
| 7 | + |
| 8 | +## Announcements |
| 9 | +Please join us for our next Socratic Seminar. A special thank you to our sponsors [Chaincode Labs](https://chaincode.com) and [Wolf NYC](https://wolfnyc.com) for food, refreshments and event space. |
| 10 | + |
| 11 | +If you can't make it to the main event please join us at PUBKEY around 9:30PM. **Learn about this awesome new establishment [here](https://ny.eater.com/2022/12/13/23494423/pubkey-opening-manhattan-bitcoin-bar).** |
| 12 | + |
| 13 | + |
| 14 | +## Mailing Lists, Meetings and Bitcoin Optech |
| 15 | +### Mailing Lists |
| 16 | +#### [bitcoin-dev](https://lists.linuxfoundation.org/pipermail/bitcoin-dev) |
| 17 | +- [Timewarp Attacks and Long-Term Timelocked Script Paths](https://groups.google.com/g/bitcoindev/c/fs1GsApj-9A/m/gB_ktCpoAgAJ) |
| 18 | +- [Great Consensus Cleanup Revival](https://groups.google.com/g/bitcoindev/c/CAfm7D5ppjo/m/bYJ3BiOuAAAJ) |
| 19 | +- [BIP for OP_CHECKSIGFROMSTACK](https://groups.google.com/g/bitcoindev/c/Ts0FEkGvDkM/m/BWdtp8lkBwAJ) |
| 20 | +- [Updated BIP for OP_CAT](https://groups.google.com/g/bitcoindev/c/cWSU3yaDdhM/m/dkz9DAT7AAAJ) |
| 21 | +- [BIP for OP_INTERNALKEY](https://groups.google.com/g/bitcoindev/c/nfJHyaOPENM/m/kCasRxn7AAAJ) |
| 22 | +- [The Future of Bitcoin Testnet](https://groups.google.com/g/bitcoindev/c/9bL00vRj7OU/m/t6lm-nKmAQAJ) |
| 23 | +- [Signing a Bitcoin Transaction with Lamport Signatures (no changes needed)](https://groups.google.com/g/bitcoindev/c/mR53go5gHIk/m/-HV-RJrJAQAJ) |
| 24 | +- [Draft BIP for User-Defined Transaction Flags Policy & Strategy](https://groups.google.com/g/bitcoindev/c/NUKF4PZ0uLc/m/DuABj3PbAwAJ) |
| 25 | + |
| 26 | +#### [Delving Bitcoin](https://delvingbitcoin.org/) |
| 27 | +- [Exploding Keys - Covenant construction](https://delvingbitcoin.org/t/exploding-keys-covenant-construction) |
| 28 | +- [LIMO: combining the best parts of linearization search and merging](https://delvingbitcoin.org/t/limo-combining-the-best-parts-of-linearization-search-and-merging) |
| 29 | +- [Analyzing simple vault covenant with Alloy](https://delvingbitcoin.org/t/analyzing-simple-vault-covenant-with-alloy) |
| 30 | +- [LRC-20: Scalable and Fast Tokenization on Lightning](https://delvingbitcoin.org/t/lrc-20-scalable-and-fast-tokenization-on-lightning) |
| 31 | +- [Second Look at Weak Blocks](https://delvingbitcoin.org/t/second-look-at-weak-blocks/805) |
| 32 | +- [Research into the effects of a cluster size limited mempool in 2023](https://delvingbitcoin.org/t/research-into-the-effects-of-a-cluster-size-limited-mempool-in-2023) |
| 33 | +- [Inscriptionless Inscriptions](https://delvingbitcoin.org/t/inscriptionless-inscriptions) |
| 34 | +- [Constellation - a high performance Lightning-based L3. Feedback wanted](https://delvingbitcoin.org/t/constellation-a-high-performance-lightning-based-l3-feedback-wanted) |
| 35 | +- [Payjoin-in-Potentiam: Externally fund an LSP channel open with one transaction](https://delvingbitcoin.org/t/payjoin-in-potentiam-externally-fund-an-lsp-channel-open-with-one-transaction) |
| 36 | +- [DSL for experimenting with contracts](https://delvingbitcoin.org/t/dsl-for-experimenting-with-contracts) |
| 37 | + |
| 38 | + |
| 39 | +### Meetings |
| 40 | +- [Bitcoin PR Review Club](https://bitcoincore.reviews) |
| 41 | + |
| 42 | +- Bitcoin Core general developer meetings |
| 43 | + - [March 28](https://www.erisian.com.au/bitcoin-core-dev/log-2024-03-28.html#l-86) |
| 44 | + - [April 4](https://www.erisian.com.au/bitcoin-core-dev/log-2024-04-04.html#l-85) |
| 45 | + - [April 18](https://www.erisian.com.au/bitcoin-core-dev/log-2024-04-18.html#l-138) |
| 46 | + - [April 25](https://www.erisian.com.au/bitcoin-core-dev/log-2024-04-25.html#l-104) |
| 47 | + |
| 48 | +- Lightning Specification meeting |
| 49 | + - [April 8](https://github.com/lightning/bolts/issues/1152) |
| 50 | + - [April 22](https://github.com/lightning/bolts/issues/1155) |
| 51 | + |
| 52 | + |
| 53 | +### Optech |
| 54 | +- [Bitcoin Optech Newsletter #299](https://bitcoinops.org/en/newsletters/2024/04/24/) |
| 55 | + - [Bitcoin Optech Newsletter #299 Recap Podcast](https://bitcoinops.org/en/podcast/2024/04/25/) |
| 56 | +- [Bitcoin Optech Newsletter #298](https://bitcoinops.org/en/newsletters/2024/04/17/) |
| 57 | + - [Bitcoin Optech Newsletter #298 Recap Podcast](https://bitcoinops.org/en/podcast/2024/04/18/) |
| 58 | +- [Bitcoin Optech Newsletter #297](https://bitcoinops.org/en/newsletters/2024/04/10/) |
| 59 | + - [Bitcoin Optech Newsletter #297 Recap Podcast](https://bitcoinops.org/en/podcast/2024/04/11/) |
| 60 | +- [Bitcoin Optech Newsletter #296](https://bitcoinops.org/en/newsletters/2024/04/03/) |
| 61 | + - [Bitcoin Optech Newsletter #296 Recap Podcast](https://bitcoinops.org/en/podcast/2024/04/04/) |
| 62 | +- [Bitcoin Optech Newsletter #295 Recap Podcast](https://bitcoinops.org/en/podcast/2024/03/28/) |
| 63 | + |
| 64 | + |
| 65 | +## Network Data |
| 66 | +- [Halving Fee Chaos](https://jimmysong.medium.com/halving-fee-chaos-4573b3c8bc9f) |
| 67 | +- [Invalid F2Pool blocks 783426 and 784121 (April 2023)](https://b10c.me/observations/11-invalid-blocks-783426-and-784121/) |
| 68 | +- [Invalid blocks being mined on testnet](https://twitter.com/0xB10C/status/1780212733805301931) |
| 69 | +- [Last notable enables full-RBF (ViaBTC)](https://twitter.com/peterktodd/status/1773141998721012102) |
| 70 | +- [List of pools participating in Antpool's tx accelerator](https://twitter.com/mononautical/status/1775165873516667128) |
| 71 | +- [LND nodes fail to broadcast txs with Bitcoin Core 27.0] |
| 72 | +- [Ocean halving block template left 37 BTC in fees on table](https://twitter.com/achow101/status/1781477641280684382) |
| 73 | +- [OP_CAT live on signet at block 193536](https://twitter.com/Arminsdev/status/1784079014702747685) |
| 74 | +- [Spiderpool attempts reorg](https://twitter.com/0xB10C/status/1781477794762965193/photo/1) |
| 75 | +- ViaBTC mines the halving block - [Block reward 40.71 BTC](https://mempool.space/block/0000000000000000000320283a032748cef8227873ff4872689bf23f1cda83a5) |
| 76 | + - [Epic sat sold for 33.3 BTC](https://twitter.com/mononautical/status/1783528618720727288) |
| 77 | +- [ViaBTC transaction prioritization scheme broken](https://twitter.com/mononautical/status/1782791176434721202), [response](https://twitter.com/yhaiyang/status/1782989893284852146) |
| 78 | + |
| 79 | +## CVEs and Research |
| 80 | +### Research |
| 81 | +- [A Primer on Bitcoin Cross-Border Flows](https://www.imf.org/en/Publications/WP/Issues/2024/04/05/A-Primer-on-Bitcoin-Cross-Border-Flows-Measurement-and-Drivers-547429) |
| 82 | +- [Efficient and Reliable Service Detection on Bitcoin](https://orbi.uliege.be/handle/2268/314439) |
| 83 | +- [Efficient Linkable Ring Signatures: New Framework and Post-Quantum Instantiations](https://eprint.iacr.org/2024/553) |
| 84 | +- [Statistical Confidence in Mining Power Estimates for PoW Blockchains](https://arxiv.org/abs/2403.13736) |
| 85 | +- [SQIAsignHD: SQIsignHD Adaptor Signature](https://eprint.iacr.org/2024/561) |
| 86 | + |
| 87 | +### InfoSec |
| 88 | +- [CVE-2024-3094: Timeline of the xz open source attack](https://research.swtch.com/xz-timeline) |
| 89 | + - [Everything I Know About the XZ Backdoor](https://boehs.org/node/everything-i-know-about-the-xz-backdoor) |
| 90 | + - [OSS-security post](https://www.openwall.com/lists/oss-security/2024/03/29/4) |
| 91 | + - [FAQ on the xz-utils backdoor](https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27) |
| 92 | + - [Infographic](https://infosec.exchange/@fr0gger/112189232773640259) |
| 93 | + |
| 94 | +## Pull Requests and repo updates |
| 95 | +### [Bitcoin Core](https://github.com/bitcoin/bitcoin) |
| 96 | +- [build: Enable fuzz binary in MSVC](https://github.com/bitcoin/bitcoin/pull/29774) |
| 97 | +- [net: attempts to connect to all resolved addresses when connecting to a node](https://github.com/bitcoin/bitcoin/pull/28834) |
| 98 | +- [index: race fix, lock cs_main while 'm_synced' is subject to change](https://github.com/bitcoin/bitcoin/pull/29867) |
| 99 | +- [feefrac: avoid explicitly computing diagram; compare based on chunks](https://github.com/bitcoin/bitcoin/pull/29757) |
| 100 | +- [Improve display address handling for external signer](https://github.com/bitcoin/bitcoin/pull/24313) |
| 101 | +- [net: Decrease nMaxIPs when learning from DNS seeds](https://github.com/bitcoin/bitcoin/pull/29850) |
| 102 | +- [ZMQ: Support UNIX domain sockets](https://github.com/bitcoin/bitcoin/pull/27679) |
| 103 | +- [Change Luke Dashjr seed to dashjr-list-of-p2p-nodes.us](https://github.com/bitcoin/bitcoin/pull/29691) |
| 104 | +- [security: restrict abis in bitcoind.service](https://github.com/bitcoin/bitcoin/pull/28340) |
| 105 | +- [assumeutxo: Fix -reindex before snapshot was validated](https://github.com/bitcoin/bitcoin/pull/29726) |
| 106 | +- [minisketch: update subtree to 3472e2f5ec75ace39ce9243af6b3fee233a67492](https://github.com/bitcoin/bitcoin/pull/29823) |
| 107 | +- [AcceptMultipleTransactions: Fix workspace not being set as client_maxfeerate failure](https://github.com/bitcoin/bitcoin/pull/29735) |
| 108 | +- [crypto: chacha20: always use our fallback timingsafe_bcmp rather than libc's](https://github.com/bitcoin/bitcoin/pull/29815) |
| 109 | +- [Update libsecp256k1 subtree to latest master](https://github.com/bitcoin/bitcoin/pull/29803) |
| 110 | +- [Remove libbitcoinconsensus](https://github.com/bitcoin/bitcoin/pull/29648) |
| 111 | +- [29242 Diagram check followups](https://github.com/bitcoin/bitcoin/pull/29724) |
| 112 | +- [wallet: Add `createwalletdescriptor` and `gethdkeys` RPCs for adding new automatically generated descriptors](https://github.com/bitcoin/bitcoin/pull/29130) |
| 113 | +- [mempool: Log added for dumping mempool transactions to disk](https://github.com/bitcoin/bitcoin/pull/29402) |
| 114 | + |
| 115 | + |
| 116 | +### [BDK](https://github.com/bitcoindevkit/bdk) |
| 117 | +- [Simplified `EsploraExt` API](https://github.com/bitcoindevkit/bdk/pull/1380) |
| 118 | +- [Fix: enable blocking-https-rustls feature on esplora client](https://github.com/bitcoindevkit/bdk/pull/1408) |
| 119 | +- [[wallet] Improve address API](https://github.com/bitcoindevkit/bdk/pull/1402) |
| 120 | +- [fix(wallet): remove the generic from wallet](https://github.com/bitcoindevkit/bdk/pull/1387) |
| 121 | +- [Fix last seen unconfirmed](https://github.com/bitcoindevkit/bdk/pull/1385) |
| 122 | + |
| 123 | + |
| 124 | +### [rust-bitcoin](https://github.com/rust-bitcoin/rust-bitcoin) |
| 125 | +- [psbt: Return internal key for key path spend](https://github.com/rust-bitcoin/rust-bitcoin/pull/2652) |
| 126 | +- [Implement ArbitraryOrd for relative::LockTime](https://github.com/rust-bitcoin/rust-bitcoin/pull/2581) |
| 127 | +- [internals: Release tracking PR `v0.3.0`](https://github.com/rust-bitcoin/rust-bitcoin/pull/2632) |
| 128 | +- [Automated nightly rustfmt (2024-03-31)](https://github.com/rust-bitcoin/rust-bitcoin/pull/2642) |
| 129 | +- [Introduce new one ACK carve-out rule](https://github.com/rust-bitcoin/rust-bitcoin/pull/2627) |
| 130 | + |
| 131 | + |
| 132 | +### [libsecp](https://github.com/bitcoin-core/secp256k1) |
| 133 | +- [Signed-digit multi-comb ecmult_gen algorithm](https://github.com/bitcoin-core/secp256k1/pull/1058) |
| 134 | + |
| 135 | + |
| 136 | +### [Core Lightning](https://github.com/ElementsProject/lightning) |
| 137 | +- [msggen: add disableoffer method](https://github.com/ElementsProject/lightning/pull/7233) |
| 138 | +- [plugin/clnrest: Adding new config param as `clnrest-swagger-root`](https://github.com/ElementsProject/lightning/pull/7226) |
| 139 | +- [msggen: add delforward method](https://github.com/ElementsProject/lightning/pull/7260) |
| 140 | +- [Fetch block from a peer if we don't have it](https://github.com/ElementsProject/lightning/pull/7240) |
| 141 | +- [msggen: add low level fundchannel methods](https://github.com/ElementsProject/lightning/pull/7231) |
| 142 | +- [msggen: add delpay method](https://github.com/ElementsProject/lightning/pull/7232) |
| 143 | +- [Plugin wss proxy](https://github.com/ElementsProject/lightning/pull/7225) |
| 144 | +- [msggen: add low level openchannel methods](https://github.com/ElementsProject/lightning/pull/7230) |
| 145 | +- [schema: add multifundchannel generation](https://github.com/ElementsProject/lightning/pull/7215) |
| 146 | +- [Pay: payment removal cleanup](https://github.com/ElementsProject/lightning/pull/7191) |
| 147 | +- [pay: fix re-adding payment amount back to estimated capacity](https://github.com/ElementsProject/lightning/pull/7188) |
| 148 | +- [Renepay patch htlc_max=0 cases](https://github.com/ElementsProject/lightning/pull/7159) |
| 149 | +- [Reallow no gossip queries](https://github.com/ElementsProject/lightning/pull/7174) |
| 150 | + |
| 151 | + |
| 152 | +### [eclair](https://github.com/ACINQ/eclair/) |
| 153 | +- [Relax assumptions about `gossip_queries`](https://github.com/ACINQ/eclair/pull/2842) |
| 154 | + |
| 155 | + |
| 156 | +### [LDK](https://github.com/lightningdevkit/rust-lightning) |
| 157 | +- [Implement PSBT fields that were missing for a Signer](https://github.com/lightningdevkit/rust-lightning/pull/2761) |
| 158 | +- [Add splicing feature flag](https://github.com/lightningdevkit/rust-lightning/pull/3001) |
| 159 | +- [Add `OutputSweeper` utility persisting and sweeping spendable outputs](https://github.com/lightningdevkit/rust-lightning/pull/2825) |
| 160 | +- [Include a `PaymentContext` in `PaymentPurpose`](https://github.com/lightningdevkit/rust-lightning/pull/2970) |
| 161 | +- [Add tx_signatures.tlvs field (splicing-specific field in dual funding message)](https://github.com/lightningdevkit/rust-lightning/pull/2991) |
| 162 | +- [Fix race between handshake_complete and timer_tick_occurred](https://github.com/lightningdevkit/rust-lightning/pull/2993) |
| 163 | +- [Compact blinded path handling](https://github.com/lightningdevkit/rust-lightning/pull/2961) |
| 164 | +- [Delay broadcasting Channel Updates until connected to peers](https://github.com/lightningdevkit/rust-lightning/pull/2731) |
| 165 | +- [Reserve async signing related channel TLV types](https://github.com/lightningdevkit/rust-lightning/pull/2978) |
| 166 | +- [Support sending custom TLVs to to blinded recipients](https://github.com/lightningdevkit/rust-lightning/pull/2975) |
| 167 | +- [Support decoding HTLC onions once fully committed](https://github.com/lightningdevkit/rust-lightning/pull/2845) |
| 168 | + |
| 169 | + |
| 170 | +### [lnd](https://github.com/lightningnetwork/lnd) |
| 171 | +- [tlv: add new types and functions](https://github.com/lightningnetwork/lnd/pull/8692) |
| 172 | +- [rpc: add default conf target back](https://github.com/lightningnetwork/lnd/pull/8693) |
| 173 | +- [[3/3]: Blinded Route Error Handling](https://github.com/lightningnetwork/lnd/pull/8485) |
| 174 | +- [dont use sweeper unconfirmed utxos](https://github.com/lightningnetwork/lnd/pull/8545) |
| 175 | +- [sweep: add docs and remove dead code](https://github.com/lightningnetwork/lnd/pull/8674) |
| 176 | +- [lnrpc: rejects positive inbound fees by default](https://github.com/lightningnetwork/lnd/pull/8627) |
| 177 | +- [tlv: add axiomatic RecordProducer implementation for Record](https://github.com/lightningnetwork/lnd/pull/8661) |
| 178 | +- [[2/3]: Support Forwarding of Blinded Payments](https://github.com/lightningnetwork/lnd/pull/8160) |
| 179 | +- [coin select: add coin selection strategy option to all on-chain RPCs](https://github.com/lightningnetwork/lnd/pull/8515) |
| 180 | +- [lnd: fix sweepall argument call.](https://github.com/lightningnetwork/lnd/pull/8609) |
| 181 | +- [routing: inbound fees send support](https://github.com/lightningnetwork/lnd/pull/6934) |
| 182 | +- [htlcswitch: add inbound routing fees receive support](https://github.com/lightningnetwork/lnd/pull/6703) |
| 183 | +- [[1/3]: Preparatory work for Forwarding Blinded Routes](https://github.com/lightningnetwork/lnd/pull/8159) |
| 184 | + |
| 185 | + |
| 186 | +### [BIPs](https://github.com/bitcoin/bips) |
| 187 | +- [Update bip-0129.mediawiki](https://github.com/bitcoin/bips/pull/1390) |
| 188 | +- [BIP 2: Allow editors to fix typos](https://github.com/bitcoin/bips/pull/596) |
| 189 | +- [BIP 331: Ancestor Package Relay](https://github.com/bitcoin/bips/pull/1382) |
| 190 | +- [Finalize BIP-47](https://github.com/bitcoin/bips/pull/1068) |
| 191 | +- [BIP2: update BIP editors](https://github.com/bitcoin/bips/pull/1573) |
| 192 | +- [BIP-00{43,49,84}: move to Standards Track + BIP-0044: mark as Final](https://github.com/bitcoin/bips/pull/1558) |
| 193 | + |
| 194 | +## New Releases |
| 195 | +- [bitcoin-inquisition v25.2](https://github.com/bitcoin-inquisition/bitcoin/releases/tag/v25.2-inq) |
| 196 | + |
| 197 | +## Events and Podcasts |
| 198 | +- [Bitcoin Halving block template livestream](https://www.youtube.com/watch?v=C6D9OEjnWmA&t=13189s) |
| 199 | + |
| 200 | +## Mining |
| 201 | +- [3nm chip headed to the foundry, our new mining system, and more](https://www.mining.build/latest-updates-3nm-system/) |
| 202 | +- [Antminer S21 Technical Deep Dive](https://braiins.com/blog/antminer-s21-technical-deep-dive) |
| 203 | +- [AntPool & Bitmain Acting as 'a Pool of Pools'](https://www.nobsbitcoin.com/bitmain-antpool-pool-of-pools-report/) |
| 204 | +- [March 2024 Bitcoin Miner monthly update](https://compassmining.io/education/march-2024-bitcoin-miner-monthly-update/) |
| 205 | +- Hashrate Index Roundup - [April 8](https://hashrateindex.com/blog/hashrate-index-roundup-april-8-2024/), [April 22](https://hashrateindex.com/blog/hashrate-index-roundup-april-22-24/) |
| 206 | +- [The Halving Aftermath](https://nicosmid.substack.com/p/the-halving-aftermath) |
| 207 | + |
| 208 | +## Miscellaneous |
| 209 | +- [Assigning BIP Numbers](https://blog.bitmex.com/assigning-bip-numbers/) |
| 210 | +- [Bitcoin Core Contributor Challenges](https://blog.lopp.net/bitcoin-core-contributor-challenges/) |
| 211 | +- [BitGo transitions to Native Segwit](https://blog.bitgo.com/transition-to-native-segwit-p2wsh-to-reduce-fees-4ffab0dde1c0) |
| 212 | +- [BitVM Bridges Considered Unsafe](https://medium.com/@twhittle/bitvm-bridges-considered-unsafe-9e1ce75c8176) |
| 213 | +- [Cashu-based reward system for a pleb-friendly Bitcoin Mining Pool](https://github.com/plebemineira/plebpool/discussions/7) |
| 214 | +- [CatVM](https://catvm.org/catvm.pdf) |
| 215 | +- [Chaincode Labs Bitcoin Scholarship](https://chaincode.applytojob.com/apply/F0HErM5FSk/Bitcoin-Scholarship) |
| 216 | +- [CISA Research](https://cisaresearch.org/) |
| 217 | +- [FBI probed bitcoin core developer event linked to Luke Dashjr’s BTC hack: Mike Schmidt](https://www.theblock.co/amp/post/287939/fbi-luke-dashjr-btc-hack) |
| 218 | +- [Federated Lightning Addresses for Mutiny+ Users](https://blog.mutinywallet.com/federated-lightning-addresses-for-mutiny-users/) |
| 219 | +- [How does CoinGrinder find the minimum input weight?](https://twitter.com/murchandamus/status/1783867419615744454) |
| 220 | +- [How Kraken Wallet addresses challenges in mobile crypto security](https://blog.kraken.com/product/kraken-wallet/kraken-wallet-security) |
| 221 | +- [HRF CISA Research Fellowship](https://hrf.org/hrfcisaresearchfellowship) |
| 222 | +- [Killing FPPS pools](https://twitter.com/ckpooldev/status/1783605323108102443) |
| 223 | +- [OpenSats Receives $1M Donation From The Reynolds Foundation](https://opensats.org/blog/opensats-receives-one-million-from-reynolds-foundation) |
| 224 | +- [Satoshi’s 2014 Email Hack](https://blog.bitmex.com/satoshis-2014-email-hack/) |
| 225 | +- [Stop Calling It MEV](https://bluematt.bitcoin.ninja/2024/04/16/stop-calling-it-mev/) |
| 226 | +- [Storing information in blocks via transaction ordering](https://twitter.com/salvatoshi/status/1772619501370036477) |
| 227 | +- [Team Slow and Steady](https://www.erisian.com.au/wordpress/2024/04/20/team-slow-and-steady) |
| 228 | +- [The Untold Story of ditto-b](https://blog.lopp.net/the-untold-story-of-ditto-b/) |
| 229 | +- [Wasabi Wallet and zkSNACKs family of products now blocking US residents](https://blog.wasabiwallet.io/zksnacks-now-blocking-u-s-residents-and-citizens/?ref=nobsbitcoin.com) |
| 230 | +- [zkCoins](https://gist.github.com/RobinLinus/d036511015caea5a28514259a1bab119) |
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