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 0x5c792b5c157d34ccb47c907b45a9aa5f365c0aed92048d7e47007546323f38f4. 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/65d28cc4-00d8-4c8d-9bdc-be68e37938e0.json and https://artists.proofprofile.net/proofs/artist/65d28cc4-00d8-4c8d-9bdc-be68e37938e0.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 0x22d2cb631bba5ef566a2c13e7193e6a638556caa34efdb793fd3d8a1ab03e8fb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM20500864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b3100000f36e25c495a8592022489fb78e45010a07ce6fd91b6c6930f3a159. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USHM20500865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141bca6cd9bc89f8871e7152f354989600cf8858cec2ee6a87160577fdb5e0d0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USHM20500866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae655d7fc177177e7856ea4a0836adc64784a6c9fef953d5a419d3d1b9d4e39. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USHM20500867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca6fe08a3568caa6d93b8731e4279bc7171dfde62bb093e565751547fe88a3b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USHM20500868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667887b601147e7f0978e645c75f03bb10cb527ff84ef530e6cd677c454141f8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USHM20500870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ccd5f917db7cf497864edebd4d8951e8bdc18d5a64a8052e8bdbb0972ba3de. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/USHM20500871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62716a47a24e75fe57c5928467fb6be89aeec33f0e28b44aa86371782aa2fb7. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USHM20500923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3f7d1cc12058ae892f2094f735142188213d308501e31911965c195268467a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USHM20500926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e79243ca4ba5abf3d2930a7a431ee7c7a1200119c64595cc55ad79d412034d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USHM20500850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e17909907b441f727dc6c50653eac675bd4e98a40b4f2f2639e31c6cc669116. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM80707925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949a4ac181bd5ef41de57fd1f5f31dbc1993dc892f057565c10b931fef01ef43. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM80707932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a04f90eb4c44df0f19c1e8cbf8b1a2c1974b609c8b7559eeefb8173b64f5751. 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/QMEU31615492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe337b0acafd378b240d20dff83090c88af10c66488743951b1c3fd22c73490dc. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMEU31615493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0bd5d8f6c40d007f1e6a63014ae810b968553cee4273d29cc6cdcdaf317ebb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMEU31615495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b15a6f72bc22ebe94afe995247f734cfb42d8e2fd645d172d976a8f029458f. 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/QMEU31615496.
Warmth In The Wilderness - A Tribute To Jason Becker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb251259438f555ed8073d66f44707b0ece81d68b29e3b248c5e3ef61318497d3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHM90791481.