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 0x8ec631bcf91b0424fdc96663658162fc9f3ab35914684c2536af4c9353ab8102. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0df9bb96-7d40-4cd1-bb7a-751643059b58.json and https://artists.proofprofile.net/proofs/artist/0df9bb96-7d40-4cd1-bb7a-751643059b58.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 0xb1f6313123aee296e3b56bdcccb7f6736c15e1a95da38d96406e05f7ea4cd68a. 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/TWE350002101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f3fedd62aefedf5fa0ef857d89c7251aff3f466e82d2953157f694508a98c9. 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/TWE350002102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8901a261f9b3c954ab5790c980f767c00ecc1a13e110990f2f5eb37e11fb5e33. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWE350002103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7104945a99310c683547d01b814693da4bbb7ea78f4431ba890c275dcf2cd107. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWE350002104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d90e3d76336399a7aeea066fa8b2f7ca04b18fd8d302adc4d9f6df5b1b48eb. 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/TWE350002105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c96db3f109180ea7aaf2e6a248641f2de6e06e3009434ec9220ea27722bc949. 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/TWE350002106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1707d4161fd8af61b596ccdb55ffdcdad64f96a71fe5369a0f2ec95d97b4d7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TWE350002107.
The Passion Of The Christ - Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4cf4c1ec5eeb88e0692ff4c4965df42036edddb7e28a11770f1c063750886f. 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/USSM10400943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c5f6604cfc2abb7e2ea4d623807b499f2c95e52d8ca15139c6084597f216f6. 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/USSM10400929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4787c553b366b95a13bf60e778bc1c816f089cc6aa7e6ba5685b51df9ead9. 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/USSM10400930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e08c2fc1ed6e03ca0b2266601318f32a1de4bb81f8c4b801bc204b899525a3. 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/USSM10400931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb137e68ddaa03d5a4a1b1b40f3a1732510600250252169c609a27d6f48293e. 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/USSM10400932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098473117f145293b85d25a96835143fffd31b50341bac4cc39bd399dea370a7. 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/USSM10400933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0facfe5ab9f3f005ab7ef5f111cc72352061fcfbacf88d7825cff471b844de. 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/USSM10400934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be12a2366d2f50109176a9108116d5fd17ce7a298e655b52dfdc4eadb1f9961. 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/USSM10400935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f23d9e3d5dec61789201f49ba9d23e2a981ec3103a6771a11191458b3c24c. 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/USSM10400936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9cbf90707b01c12a796ab7759f7745d797c6a2f9ee68f199395ecc720fae7e. 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/USSM10400937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c2005749594fb2f04ad1235e16772d98dde0c501269262ea27a4eaabf33942. 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/USSM10400938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201e049a7a01e1c9402769689b8a47d401ed9b8a029fc87e387e52df9cf2e8c7. 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/USSM10400939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e005e0fc04f7c0674809f9717ff557b20d57ebfdbbff18ab4d25c8e62ed16b. 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/USSM10400940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c02845247df627cfa20cead813e6c9dde76457f1a6c3525d7ed6c719ca2470. 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/USSM10400941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb044224cfba6ad776040dc3abde29e09ddcc4d944838e30fca689df6878dc59f. 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/USSM10400942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768594f04b5c04587e144c5230f93b28c5c3f18c20a9e9f4e0b7db1cc77483b7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:16:20Z), 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/TWE350304603.