[
{
  "Field number": 1,
  "Field name": "identifier",
  "Description of the field": "FILER file Identification number",
  "How this information was obtained": "Generated",
  "Example": "NGEN034536"
}
,{
  "Field number": 2,
  "Field name": "data_source",
  "Description of the field": "Original data source name",
  "How this information was obtained": "Extracted",
  "Example": "ENCODE"
}
,{
  "Field number": 3,
  "Field name": "file_name",
  "Description of the field": "Name of the data file",
  "How this information was obtained": "Extracted",
  "Example": "ENCFF891VME.bed.gz"
}
,{
  "Field number": 4,
  "Field name": "number_of_intervals",
  "Description of the field": "Number of records (genomic intervals) in the data file",
  "How this information was obtained": "Generated",
  "Example": 78168
}
,{
  "Field number": 5,
  "Field name": "bp_covered",
  "Description of the field": "Coverage (the total number of base pairs covered by the genomic intervals in the dataset)",
  "How this information was obtained": "Generated",
  "Example": 73858133
}
,{
  "Field number": 6,
  "Field name": "output_type",
  "Description of the field": "Type of information provided in the dataset",
  "How this information was obtained": "Extracted/Inferred",
  "Example": "stable peaks"
}
,{
  "Field number": 7,
  "Field name": "genome_build",
  "Description of the field": "\"Genome build (hg19, hg38, hg38-lifted)\"",
  "How this information was obtained": "Extracted/Inferred",
  "Example": "hg38"
}
,{
  "Field number": 8,
  "Field name": "cell_type",
  "Description of the field": "Original cell type name as provided in the original data source metadata",
  "How this information was obtained": "Extracted",
  "Example": "layer of hippocampus"
}
,{
  "Field number": 9,
  "Field name": "biosample_type",
  "Description of the field": "\"Type of biosample (tissue, primary cell, cell line, etc)\"",
  "How this information was obtained": "Extracted/Inferred",
  "Example": "tissue"
}
,{
  "Field number": 10,
  "Field name": "biosample_term_id",
  "Description of the field": "Ontology term ID for the biosample (if available)",
  "How this information was obtained": "Extracted/mapped",
  "Example": "UBERON:0002305"
}
,{
  "Field number": 11,
  "Field name": "tissue_category",
  "Description of the field": "Assigned tissue category based on the original cell/tissue type",
  "How this information was obtained": "Generated",
  "Example": "Brain"
}
,{
  "Field number": 12,
  "Field name": "encode_experiment_id",
  "Description of the field": "Experiment ID for ENCODE datasets",
  "How this information was obtained": "Extracted",
  "Example": "ENCSR912TVO"
}
,{
  "Field number": 13,
  "Field name": "biological_replicate",
  "Description of the field": "Biological replicate information",
  "How this information was obtained": "Extracted",
  "Example": 1
}
,{
  "Field number": 14,
  "Field name": "technical_replicate",
  "Description of the field": "Technical replicate information",
  "How this information was obtained": "Extracted",
  "Example": "Not reported"
}
,{
  "Field number": 15,
  "Field name": "antibody",
  "Description of the field": "Experimental target (antibody) name",
  "How this information was obtained": "Extracted",
  "Example": "H3K27ac-human"
}
,{
  "Field number": 16,
  "Field name": "assay",
  "Description of the field": "Experimental assay name",
  "How this information was obtained": "Extracted",
  "Example": "ChIP-seq"
}
,{
  "Field number": 17,
  "Field name": "file_format",
  "Description of the field": "\"Format of the file (bed3, narrowPeak, etc)\"",
  "How this information was obtained": "Generated",
  "Example": "bed narrowPeak"
}
,{
  "Field number": 18,
  "Field name": "file_size",
  "Description of the field": "Size of the file (in bytes)",
  "How this information was obtained": "Generated",
  "Example": 1740483
}
,{
  "Field number": 19,
  "Field name": "filepath",
  "Description of the field": "Folder (path) where the file is stored",
  "How this information was obtained": "Generated",
  "Example": "Annotationtracks/ENCODE/data/ChIP-seq/narrowpeak/hg38/6"
}
,{
  "Field number": 20,
  "Field name": "downloaded_date",
  "Description of the field": "Date the original file was downloaded from data source",
  "How this information was obtained": "Extracted",
  "Example": "6/10/20"
}
,{
  "Field number": 21,
  "Field name": "release_date",
  "Description of the field": "Release date for the data according to the data source",
  "How this information was obtained": "Extracted",
  "Example": "7/31/13"
}
,{
  "Field number": 22,
  "Field name": "date_added_to_filer",
  "Description of the field": "Date the processed file was added to FILER",
  "How this information was obtained": "Generated",
  "Example": "7/15/20"
}
,{
  "Field number": 23,
  "Field name": "processed_file_download_url",
  "Description of the field": "URL for the processed FILER file",
  "How this information was obtained": "Generated",
  "Example": "https://filer2.niagads.org/ENCODE/data/ChIP-seq/narrowpeak/hg38/6/ENCFF891VME.bed.gz"
}
,{
  "Field number": 24,
  "Field name": "processed_file_md5",
  "Description of the field": "MD5 check sum for the processed FILER file",
  "How this information was obtained": "Generated",
  "Example": "01fd74f10cdd55bc5fe4a38eca817e4c"
}
,{
  "Field number": 25,
  "Field name": "wget_command",
  "Description of the field": "wget command for downloading the processed FILER file into FILER directory structure",
  "How this information was obtained": "Generated",
  "Example": "wget https://filer2.niagads.org/ENCODE/data/ChIP-seq/narrowpeak/hg38/6/"
}
,{
  "Field number": 26,
  "Field name": "tabix_index_download",
  "Description of the field": "wget command for downloading the tabix index into FILER directory structure",
  "How this information was obtained": "Generated",
  "Example": "wget https://filer2.niagads.org/ENCODE/data/ChIP-seq/narrowpeak/hg38/6/"
}
,{
  "Field number": 27,
  "Field name": "link_out_url",
  "Description of the field": "URL for the original data source",
  "How this information was obtained": "Extracted",
  "Example": "https://www.encodeproject.org"
}
,{
  "Field number": 28,
  "Field name": "raw_file_url",
  "Description of the field": "Original (raw)  file download URL from the original data source",
  "How this information was obtained": "Extracted",
  "Example": "https://www.encodeproject.org/files/ENCFF891VME/@@download/ENCFF891VME.bigBed"
}
,{
  "Field number": 29,
  "Field name": "raw_file_download",
  "Description of the field": "wget command  for downloading the original (raw) file ",
  "How this information was obtained": "Generated",
  "Example": "wget https://filer2.niagads.org/Downloads/ENCODE/"
}
,{
  "Field number": 30,
  "Field name": "raw_file_md5",
  "Description of the field": "MD5 check sum for the original (raw) file ",
  "How this information was obtained": "Generated",
  "Example": "4295631bb85571ab581f4ffb1776d3a1"
}
,{
  "Field number": 31,
  "Field name": "data_category",
  "Description of the field": "Assigned data category",
  "How this information was obtained": "Generated",
  "Example": "Called peaks"
}
,{
  "Field number": 32,
  "Field name": "classification",
  "Description of the field": "\"Assigned biological data class based on assay, experimental target and other information\"",
  "How this information was obtained": "Generated",
  "Example": "ChIP-seq H3K27ac-histone-mark stable peaks"
}
,{
  "Field number": 33,
  "Field name": "track_description",
  "Description of the field": "detailed description of the track/dataset (semicolon-separated key=value list)",
  "How this information was obtained": "Extracted/Generated",
  "Example": "Biosample_summary=Homo sapiens K562;Lab=Bradley Bernstein, Broad;Life_stage_age=adult 53 years;Reference=PMID:32728046;External_resources=UCSC-ENCODE-hg19:wgEncodeEH000045,GEO:GSM733714;Project=ENCODE;Award=U54HG004570;Experiment_date_released=2011-02-10;Schema=bed6+4;dataSource_pubmed_id=22955616|41168159|31713622;in_trackHub=yes;dataSource_acknowledgements=https://filer2.niagads.org/acknowledgements/ENCODE.html;dataSource_ontology=EFO:0002067;is_hg38_lifted=NA"
}
,{
  "Field number": 34,
  "Field name": "system_category",
  "Description of the field": "Assigned system category based on the cell type/tissue of origin",
  "How this information was obtained": "Extracted/Generated",
  "Example": "Cardiovascular"
}
,{
  "Field number": 35,
  "Field name": "life_stage",
  "Description of the field": "Biosample developmental stage (e.g., embryonic, fetal, child, adult)",
  "How this information was obtained": "Extracted",
  "Example": "Adult"
}
]