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 0xf2fdf9a68863d2e97dcedbeb1d3a0c6f23709229e7b03a5abd121cb533009afa. 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/f4b9cf93-8101-485f-85c2-f0da12917882.json and https://artists.proofprofile.net/proofs/artist/f4b9cf93-8101-485f-85c2-f0da12917882.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 0xf3651eccb26b79284081bd5696aba89d044faee2404de3dbcbca79f34c789626. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEOE82300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b03692f177701dd8f96f8b0e68352324fa4b771ccb235b08ab10f6bd016b9f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEOE82300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f060b336417c8dc73beefc105b8f8762be9a57d9204040edf09fb8359eae47. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEOE82300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83710d894308a9673e42fa4aa0895fc6a07f347bb2158e82699183026ae3b59f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEOE82300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88750cd7c2226b37c664392097b3ddfd33656fc3bf141f5d4a3901e6487106e3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEOE82300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d66ab0d90392bc90f0843165cb4f4932b4aa4058acb2be2b2b581298888a2bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEOE82300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b897103c100aa90b620bf38705ffbd317e8b76c1c03c908580a070d73d7c156. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEOE82300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32de927b52b4f6b8557eb8bea0b925c2969b46d9b9ea099efa0166bdc5dcb925. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEOE82300012.
NEON RATS - SHERELLE's Sleepless in Philadelphia Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5413190f1dc8bfbaa0134a82214e020e3089af039a8158e2d7650e2bb7a934d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEOE82300013.
FAST LAND - The Bug's Kevin Richard Martin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4338480c492e6711e38eeb498718f4d07a8399b880d551c1feb817931d3ef77f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEOE82300014.
The Breaking Ice (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a8a2ab17ff03f0131224ef20a1867644093d0a5024d982515cdf08578c71ce. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA082367445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ec710181e9f4d0dec26a62e68f177b2967a54d2cc4c4e2280f188661035f8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DGA082367448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af4a92d73bdaa63a0ea88fe463f71d20fec2b70f055cc867d38ff26b0b7dd79. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA082367457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e338167d4da6e724bfe806038e9e4537dbdca410da72c60ef01f4d9bdef0ead. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA082367458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740d42c8a40324c2f7a0da7f274f60a32119b43a9946f0ddb3b6f5c3b78c5a4f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DGA082367464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd8ab31974f0d93fce955e80460592e4af4be32a0b9a717926504b63e64edd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAEA1800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4329632a58ba073a25f5364ab8e4dbbb2f1c8dbecb450f90e135892826f44194. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRIDO2511063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76678095963dd621c6f2db176d2c14931d9da56340a430bea3ebb184505df7b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42553196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0174087f4079517b3c38e499881e397b5ae30cc3cdae2629239900d512b7eebf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42553197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d47b95a94e1a7be2ef4a2c667607bd9f17269f1bef7ecc6a1648af961f83b5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42553198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3401ce7fd733e0161f19171bd4707face12b6b4444ac5ee75e00e71f126c8ed3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR2X42553199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fc4c5bdd25c9b3301a674e32d3451e62c4dc88368ba8b0a2587267e7120dc6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USEP42419002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850fdcfb0a4bcacdfd2ac189594f93fda3e158c6d0685bf3393a56b1c36b8e48. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US23A1550921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1064590b8d99e582e21f1e56673d16b58cc4ed52fa59c20fa6f8f6d25f90c8a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX202008570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6a8626897bd58a0a68f71057c51a06327000f9a4063776b030d5c2e5a60dab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRX202008571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9729634c9bc1ca5dbe71d267f31c479cea8aef193cdf2ff74e4498e451eb27. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6YT2104102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba2b7c10e6f64e45fdb4e3b6448a0f3fe97a4b1424ede9916593601eb118112. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6YT2104103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb689195883864f27d8da87d8387f6bc5b1bf9c65d7e55a8ed350ae06ba11c540. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM6YT2104104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d61f6086660bf341ebdb69ad470791b2c446de69f61dc679c9c443ceecb25a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM6YT2104105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0313bdd1d4a0dab29b6c07819cac3ef8369686df2a427f619f9c953691ff639c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM4TW2295780.