The Briefs are an American punk rock band from Seattle, Washington, formed in 2000 and originally consisting of Daniel J. Travanti (guitar/vocals), Steve Ross, performing as Steve E. Nix (guitar/vocal
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388f20cdbc44e7f70b31a4ce35cbe3bdaa09651c2abf18ec2959af173ff836eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6776c212-c16f-4e20-ad6c-af84c59285ed.json and https://artists.proofprofile.net/proofs/artist/6776c212-c16f-4e20-ad6c-af84c59285ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10eb4de4b2ad601cb682369e3005ae19bcd24c77d3a927c8c7850fefb0672ca. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67947b1b05bfbe89be499357d417ed40a2b3ce4b7bf6a427d9d3d7bc6016ec7f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169c6a8dae05cd95629e2f65fcef74cbc03ef4737c575499186157cf70b77cc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcddc405b8bdc721372e3a12b26fa175fcae0fa53d121821b1018b0357f8780. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a03ea54c099fd5fa11da3fc30a1bfd931885149dbe99ee9e928a8c7dd720e3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a50924d11dd0674aff4ff6d8dcc0cf08ce227b2fb2b3a7fcfec35422ce91396. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:41:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed689ceddc6daf7d4492c98604f73794dcb0796601cc745b0931c626e7b943. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES81992542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e487e69bb49c1f82e20e214cc874d7107ee20af7ea9fadb16ad3200ff3fc727. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2031445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb271a3524bf1f3fd6d4eb3738481bc8bdbcb7ec741f5f8739497d2ab1757bac4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2047189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4638d59abd4ce0c191c679cccaec33888a011336febf85d003a637b12b504254. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59310703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40b50b76f00d520f45f4da60df66af546d8d28eababb911dd7f0f91125ddd46. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59310704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3b81aa4d24c4abe38a6d21fa764190ca5bb51fb6b0d361a249fb452f50b42f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59310705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e70854117c3c1e2e63a19b2b8339d502c6c8719d84e46e8af3d22369ead168. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59310706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8adc9febe8ddb01f1f96bd2301919319a5067dee0d01c1362c230a7e27a156. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8298372408aa0eec9dc68a7a07c3251312d4e92d3cadd584cc63252dd9c1cfc0. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466e70e9c348b9a1a8e50d284ac0ffd5941e6e0b14b9d775793fdb2ab3f949cb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0657c7c638b3c0ed2773f9ebc480baaf31dc6915eaff171289e1e6d21682a427. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1b999807a325d21aa270302e7e22fbb5dfaba263141455cdd869a49eb13bdc. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd27be0d2de3ab70c7ec4baedc742af38569bb64e254055e61c41a428792f07. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3X59309812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c70ed04374e1fd188e1c8fb69ae2a940dee41224683ed045c2a351f04d33788. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2447161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69d869156801e3e5ebe4daae4c123255a268cd26ac57070ed4bea9389b5d47. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2595644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bd8aa1708de1e22c6677ecff17afa5f9ae748869af2e640be9e6ab8c3846e0. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2595645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1d82f50435afa4d4bb8b8c313759c2557094c2bd430aafbda456a803345e1a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ762546470.