{"rid":"storage/openneuro","card":{"rid":"storage/openneuro","eid":"openneuro","topic":"storage","slug":"openneuro","provider":"OpenNeuro","url":"https://openneuro.org","domain":"openneuro.org","category":"academic","tier":null,"verdict":"qualifies","vorder":0,"grp":"usable","confidence":"reported","binding":"none","identity_kind":"institution","identity_basis":"defaulted","needs_card":null,"needs_phone":null,"needs_id":null,"needs_institution":1,"country":null,"crypto":null,"interfaces":"s3,git,rclone,cli","egress_metered":0,"per_object_bytes":null,"retention_days":1080,"verified_at":"2026-10-21T00:00:00.000Z","verified_basis":"inherited","checked_on":"2026-10-21","stale_on":"2026-11-04","n_evidence":4,"usd_month":null,"usd_per_tb_month":null,"summary":"Free, no published per-dataset or per-account cap. 'Is this service free to use? Yes!' A 6.4 TB dataset has been deposited (staged incrementally).","duplicate_of":null,"n_unknown":6},"record":{"topic":"storage","slug":"openneuro","provider":"OpenNeuro","url":"https://openneuro.org","category":"academic","free_tier":{"stated":"Free, no published per-dataset or per-account cap. 'Is this service free to use? Yes!' A 6.4 TB dataset has been deposited (staged incrementally).","unit":"TB","metered_on":"unstated","source_url":"https://docs.openneuro.org/faq.html","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"not stated","source_url":"https://docs.openneuro.org/faq.html","notes":"not stated"},"retention":{"stated":"per-object-cap: none published; the real cap is a transient staging worker ('files are stored on a worker with relatively limited storage space'), so very large datasets must be uploaded in batches with ~24 h waits between snapshots. Retention: permanent, every version gets its own DOI; 36-month grace before forced CC0 release","days":1080,"source_url":"https://docs.openneuro.org/faq.html","notes":"not stated"},"egress":{"terms":"Free and anonymous. Objects live on Amazon S3 (`s3.amazonaws.com/openneuro.org`), public-read, ranged, CORS-open. No auth, no egress meter.","metered":false},"interface":["s3","git","rclone","cli"],"interface_detail":"s3","tooling":"openneuro-cli (`openneuro upload`) + git-annex, and DataLad. Read side is plain anonymous S3 GET — any S3 client, rclone's s3 remote with no credentials, or plain curl.","chaining":"Unlimited datasets, each a fresh S3 prefix under `openneuro.org/ds<ID>/`. Because the read side is unauthenticated S3, fetch volume never touches OpenNeuro's app tier.","limits":[],"limits_note":"per-object-cap: none published; the real cap is a transient staging worker ('files are stored on a worker with relatively limited storage space'), so very large datasets must be uploaded in batches with ~24 h waits between snapshots. Retention: permanent, every version gets its own DOI; 36-month grace before forced CC0 release. Binding read limit is per-ip-shaping but weak.","identity_cost":{"kind":"institution","detail":"inferred from the category 'academic'; the source record states no identity cost, so this is a class assumption, not evidence","country":null},"reliability_note":"Large uploads fail in the staging area and require batch-then-wait choreography; BIDS format is mandatory and undeface-d datasets get deleted after the fact.","confidence":"reported","confidence_note":"One page read moves it to documented.","evidence":[{"url":"https://docs.openneuro.org/faq.html","date":"2026-10-21","proved":"'Is this service free to use? Yes!', CC0 after 36-month grace, CLI upload supported"},{"url":"https://github.com/OpenNeuroOrg/openneuro/issues/3683","date":"2026-10-21","proved":"'The full size is 6.4T', staging worker explanation, a batch-upload alternative route"},{"url":"https://s3.amazonaws.com/openneuro.org/ds000001/dataset_description.json","date":"2026-10-21","proved":"probe: GET -> 200, 615 bytes, real BIDS JSON"},{"url":null,"date":"2026-10-21","proved":"probe: 16 parallel ranged GETs of sub-01_T1w.nii.gz -> 3,200,000 bytes in 2.65s (1.21 MB/s) vs 1 connection 200,000 bytes in 3.26s (61 KB/s) — 20x linear scaling"}],"verdict":"qualifies","verified_at":"2026-10-21T00:00:00.000Z","notes":"Free, no published per-dataset or per-account cap. 'Is this service free to use? Yes!' A 6.4 TB dataset has been deposited (staged incrementally).","extras":{},"binding":"none","binding_note":"no constraint in the record binds at this scale; the record carries no limit of a kind the vocabulary names"},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":6.4,"unit":"TB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"}],"unknown":[["$.evidence[3].url","private-url"],["$.free_tier.notes","process"],["$.identity_cost.kind","identity-defaulted"],["$.per_object_cap.notes","not-extracted"],["$.per_object_cap.stated","not-extracted"],["$.retention.notes","not-extracted"]],"history":[],"drift":[]}