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 0x28a4da8a31e58d141cd31879cc07c068cbc2169246b85b3e99e94288d3ef024a. 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/a6cefe68-370d-40a3-9023-f32aaabf191e.json and https://artists.proofprofile.net/proofs/artist/a6cefe68-370d-40a3-9023-f32aaabf191e.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 0x2d9ecbe3205e5643cba64fa5783aa3bbd71cf5db9cb324fb19e288500285dce2. 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/GBARU9900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34751ef928358337b195853fe7fe3401889c2d18ef6c34d660aff5ed041242c. 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/GBARU9900152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad99ed251272e0b121621a2ce986eadb54f3dc4950fb102fc99cc7e3d2ba8e15. 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/GBARU9900153.
Scheherazade: The Tale of the Kalendar Prince
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483cfd788a025c53f81b0d4d0ab6471f7312ed8cafef25e742e219e26371c6ea. 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/GBARU9900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006ba33a26ef32f06efb6ce4de38596c0a051134815fbffca12e2b963f6297d3. 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/GBARU9900155.
Scheherazade: Sinbad's mighty bird, the Roc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6ec6932f4f7fee555c697a03410770e3b9f7b4054bfe192527bda8f972ca3c. 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/GBARU9900156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f0a8cb3a9f8de0657de1627c625ada8a3b560d664ce36cf38c672910e4cce9. 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/GBARU9900157.
Scheherazade: The princess in a palanquin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72efa4bace330742bcdbb5bef0ee05e903fca1ae604f10b34133e56117a8575e. 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/GBARU9900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ea01b75fda4afd863ac3a0797840a24c092a0350c7e17a55fe6f5a9ee0174b. 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/GBARU9900159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b61294b3ff2509761418be6606f4e00f8c0f5d0ddf3c5ff1f65292666130de. 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/GBARU9900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a31b411be44d2aa016fdd3f6be0833f6e9bbf2e280b4587ca9f194f4259fb54. 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/GBARU9900161.
Scheherazade: The Ship breaks up against a cliff surmounted by a bronze horseman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cdb0a1ec90eb7a4c650ddb6a7f1a19ac7091874a3923bd4c6547b07cf293b9. 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/GBARU9900162.
Scheherazade: Calm - the triumph of Scheherazade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec889d2b6765b9c68a3117e1a29b0a04b6738eb50436a30660ddc3828961d37. 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/GBARU9900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb54df7eecc3b6e16df21c9eb024a8bf3ca7f133a0e515a47a59477e9be5c4a. 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/GBARU9900164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16661a078b63a120e835a56960e10e9625d81747aa0042b1efaf601c04fe3cfe. 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/GBARU9900165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7077dbb69a0296275541c57070cf1fde4279223ad76ce84a0b9279f933e07647. 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/GBARU9900166.
Capriccio Espagnol: Scena e canto gitano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f9e601f7d9b129ff23fb1fb048c868458d4c4e4378c0b535ef917eacd29f8. 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/GBARU9900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e06bba2c359a220042183cf909f8ab98bc8fa33fe82177e202e6e12a991eebf. 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/GBARU9900168.