TableInfo: file.tsv

The file table will contain one row per file in your Program

Field	Field Description	Required?	Attributes	Extra Info
id_namespace	A CFDE-cleared identifier representing the top-level data space containing this file [part 1 of 2-component composite primary key]	Required	Value type is string	id_namespace is the unique identifier for your program, or some subset of your program, that identifies it as your data. In the simplest case, your program would use the exact same value for the id_namespace column in every row for every table. More complex Programs may choose to use multiple namespaces. id_namespaces should all be listed in the primary_dcc_contact table
local_id	An identifier representing this file, unique within this id_namespace [part 2 of 2-component composite primary key]	Required	The value in each row must be different for a given namespace Value type is string	Each individual file needs a unique local_id value (every row should be different). If every file has a unique name you can use the filename for the local_id (and repeat it in the filename field). If your system does not have unique names for every file, an easy way to generate a unique local_id for every file is to use your path as the local_id. e.g. /Users/amanda/DCCData/Study_1/QualityControl.txt. The local_id column appears in many tables but values should not be repeated across tables. e.g. 'file' local_id is a seperate concept from 'biosample' local_id. If your program is using a single id_namespace, then every value for local_id across all tables should be unique.
project_id_namespace	The id_namespace of the primary project within which this file was created [part 1 of 2-component composite foreign key]	Required	Value type is string	If you have not implemented multiple namespaces, this will be the same as id_namespace.
project_local_id	The local_id of the primary project within which this file was created [part 2 of 2-component composite foreign key]	Required	Value can be any string	For each row (each file), this will be the value of 'local_id' in the project table for the project this file came from
persistent_id	A persistent, resolvable (not nec. retrievable) URI generated by a DCC (using, e.g. our minid server) and attached to this file	Non-required: Any number of rows after the header can be filled	The value in each row must be different Value type is string	Meant to serve as a permanent address to which landing pages (which summarize metadata associated with this file) and other relevant annotations and functions can optionally be attached, including information enabling resolution to a network location from which the file can be downloaded. Actual network locations must not be embedded directly within this identifier: one level of indirection is required in order to protect persistent_id values from changes in network location over time as files are moved around.
creation_time	An ISO 8601 -; RFC 3339 (subset)-compliant timestamp documenting this file's creation time: YYYY-MM-DDTHH:MM:SS±NN:NN	Non-required: Any number of rows after the header can be filled	Value must be datetime	Example valid dates: 2021-01-08 2021-01-08T00:45:40Z 2021-01-08T00:45:40+00:00
size_in_bytes	The size of this file in bytes	Non-required: Any number of rows after the header can be filled	Value type is integer	do not include decimal places or decimal sign .
uncompressed_size_in_bytes	The total decompressed size in bytes of the contents of this file	Non-required: Any number of rows after the header can be filled	Value type is integer	do not include decimal places or decimal sign .
sha256	(preferred) SHA-256 checksum for this file [sha256, md5 cannot both be null]	Either this field OR md5 must be populated	Value should be HSA-256 hash or nothing; If you have both please use sha256	You may populate both md5 and sha256 for a given row, but only one is required
md5	(allowed) MD5 checksum for this file [sha256, md5 cannot both be null]	Either this field OR sha256 must be populated	Value should be MD5 hash or nothing; If you have both, please use sha256.	You may populate both md5 and sha256 for a given row but only one is required
filename	A filename with no prepended PATH information.	Non-required: Any number of rows after the header can be filled	Value type is string	Filenames do not need to be unique. Uniqueness is ensured by the local_id
file_format	An EDAM CV term ID identifying the digital format of this file (e.g. TSV or FASTQ)	Non-required: Any number of rows after the header can be filled	Value must be a valid EDAM ID	EDAM format lookup Example valid EDAM IDs: format:1930 format:3712 format:2310
data_type	An EDAM CV term ID identifying the type of information stored in this file (e.g. RNA sequence reads)	Non-required: Any number of rows after the header can be filled	Value must be a valid EDAM ID	EDAM data type lookup Example valid EDAM IDs: data:2044 data:2050 data:2082
assay_type	An OBI CV term ID describing the type of experiment that generated the results summarized by this file	Non-required: Any number of rows after the header can be filled	Value must be a valid OBI ID	OBI lookup service Example valid OBI IDs: OBI:0000366 OBI:0001177 OBI:0002763
mime_type	A MIME type describing this file	Non-required: Any number of rows after the header can be filled	Value must be a valid MIME type	Common MIME types Tutorial for bulk MIME type identification Example valid MIME types: image/jpeg text/html application/octet-stream