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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434b97e30426a19881b0fc686dbd90dea8b00947e8fefb3bd19269466bbeb9c1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9340651-d385-423d-9917-8435dc3b3eff.json and https://artists.proofprofile.net/proofs/artist/c9340651-d385-423d-9917-8435dc3b3eff.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb23d3d394e0647e9a43e5153210c242736ba2966f4951ca5b4089eab4d5e5d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAAA11312801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18ac03a6f4d2ef9126078003747e56940a049a4a9cc702b3aaa9dfc63512d64. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/CAAA11409509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e41346d22af198befe94c287bd2c6bb34d5fdadc38311c62d2e2253e0d2cf0. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:05:04Z), 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/CAAA11312803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e40fe50284742dafdd486ca823c3ee1885605adebca094ae153bc083c8e1c9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAAA11519601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dc3ffa2d485c42067ad8e5ea136255b6807b32feff4e11a844368ec6eba984. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:47:25Z), 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/CAAA11624101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a21ef75a976157f1a7c63d9c8b5ceeb885d25269b8194d3d2cbf34ee9f60dd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAAA11714002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3551f3aba954c6eaa83f3dd80c7fac700832b013252abe2f1547e19bb24719. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/CAAA11714010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f8d53ef77532c30919eb33e1b7eb54d92821f00aff11e6bc861518502d4144. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T07:55:29Z), 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/CAAA11714006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc7a4473c41ed35d2e43cbf96951e97ce26a565334ffd377deb7a17fab6e96b. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/CAAA12065301.
Bloodthirsty (Music From The Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94cae3572a5806acf3c708c3966d7683dc88eb413956a5752e4b4c513b42eea. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:10:48Z), 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/CAAA12170901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2611cfd3020a3d1cc9471190396221eb90cf6b36a9cc358d35f6447fb983831. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAAA12279501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a6213f1248ab5038d28b952907881e9a2540891a08f11e21431c71074c3261. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:44:52Z), 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/CAAA12279801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb4a0ed326f1993035f4b0ebaec5fecb6baa866307d7377701ed7a0b2854864. 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/USA2P2201243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae5b766040caa18f708c522215c6cb9a413be2d68239fe79f2c72c58ec6d2c4. 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/USA2P2000856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc618c115e83da4e1a26039b7993e64e4a30c2bb1b1f9d1f566e3647edcaaa8. 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/USA2P2126634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95317bdfef65837e8e40a3f5bd029b93fdde20e0043fb1829c254dac4cab30c. 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/USA2P2126659.