1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1af51053351cf0c45011a54674b328fad52834ba70082491d55eae3bab74e6. 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/3f74aa4f-5608-40a4-9810-55a2dffc904a.json and https://artists.proofprofile.net/proofs/artist/3f74aa4f-5608-40a4-9810-55a2dffc904a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
WOW That's What I Call Metalcore, Vol. 1
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556fb2f7b6b59a37967b14f5f03d6d6a6ee7e9f88db35225b8881f2db198be1c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM7282394738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d244f6a4febebb7dc1bb0895e1afbdea65c6a3b2c02285834cc5af2e1d8fbec. 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/QM6P42320767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2d156d0ed1af646da6ceb8ca0755cd9f068612aa41d1e2585e0940267231d. 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/QM7282353364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7cc75bbdeb56715cfdf3bf62a6cb0948e12e84518b280b3b589f54f14a17d4. 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/QM7282394739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be1e1d8701f824fe680761fb5d00ee521d9af6197158ee9ba2169d49330044. 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/QM7282394746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb959e05d7c81f07ebd7d4ae1fbac86ff3f880d9ab51f32af4d9207ff8540a345. 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/QM7282394749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681d23b5016d97999e60a5300b978759cfc8be9859cf589047eb38030cce8eb9. 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/QM7282394750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1fcc5ee7f4fc337daafa7a2f1c67056d26ac3160555905fd567560f59ff4c1. 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/QM7282394752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f458b7956cd0d197bf453588eee29854ad8eb17f4fd0f166f94f6764b80465. 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/QM7282394754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65925ee9058f334a19e13d212eef16c782ceff393024f2831bf29c498dc01c18. 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/QM4TW2368025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb026ec31894577b494e6d7da9afd5b95f66c86d26e35c988d95d227eef27672b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB72268233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2632f7d90a45c4f92213af2130927e4cad6c5cca16cb869824061844b239a6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW2390321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be1e1d8701f824fe680761fb5d00ee521d9af6197158ee9ba2169d49330044. 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/QM7282394746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb959e05d7c81f07ebd7d4ae1fbac86ff3f880d9ab51f32af4d9207ff8540a345. 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/QM7282394749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681d23b5016d97999e60a5300b978759cfc8be9859cf589047eb38030cce8eb9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM7282394750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1fcc5ee7f4fc337daafa7a2f1c67056d26ac3160555905fd567560f59ff4c1. 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/QM7282394752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2d156d0ed1af646da6ceb8ca0755cd9f068612aa41d1e2585e0940267231d. 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/QM7282353364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d244f6a4febebb7dc1bb0895e1afbdea65c6a3b2c02285834cc5af2e1d8fbec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6P42320767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf330b071d7058a39eacd8b701032f504badc506cc1d44b9cbc697525b7fc51c8. 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/QM6N22425449.