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 0xf99291285ec219f54a310378d6a2c64d1eb50f0a43c670e0d460b8324e079d88. 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/79ca24c9-dd0d-495e-9453-a4f81450fe5c.json and https://artists.proofprofile.net/proofs/artist/79ca24c9-dd0d-495e-9453-a4f81450fe5c.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 0xfa7dd502af8a1efb206630dd9e726e6db7771ca6965e6abdb26167d9a3f1b072. 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/GBBCN9800141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc900d069e02f3774308fd0c122977637206441c2b8e76beb7b8f5e931cdffb95. 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/GBBCN9800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce21f9627559691a0bc98d0bafc3946fb0088af97eb2483c26fff514bf109d50. 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/GBBCN9800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a1aeab289af78d7a387f6e9680ca6ac22803d8f2049b1c5beae112548bd73a. 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/GBBCN9800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456f144e6075109ecd51c5bf960568034486edd0a7853f160d8095386c6a7a2f. 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/GBBCN9800144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea33cd7f10f7f8b82da4a0eaf1c8877359c3033dd3a684dffe64291d40e49b89. 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/GBBCN9800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd70f5ff429c679ae474fbb2bbd17a905de0ca32f63815dd681ee06732ab0a6f. 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/GBBCN9800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5786f2c2c1561761cc8616c45f516716f12f958cfa88a9bb0f12cf940a3d45. 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/GBBCN9700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ccb7dc22545552b1ffe617abb37f082a788a32ee925a2667db73b084c118fe. 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/USQY51761074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee093b3021c9ad56488013343a0ed538dec647e81ad459c8d510687e443bf2bc. 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/USQY51761084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b26c1a65b77360cc0c94661074ec5b5156beeb78907298c80adeac926976f1. 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/GBBCM2400578.
Friendly Pressure (Into The Sunshine 2024)
Friendly Pressure - Into The Sunshine 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94a9419b8c26821b39d8e69681008aae1d03e8727f5f56f01740907b3b5e106. 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/GBBCM2400554.
Friendly Pressure - Into The Sunshine Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e869e58376669aea4b0edb0063ca6c8b1630d2db835de4226644c4915bf613. 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/GBBCM9800344.
Friendly Pressure (Into The Sunshine Mixes)
Guessing - Sunship Remix (Extended Vocal Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919b84ed67e645224c85b069fd95d690e0b0d620d3135b039a9127c99650de27. 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/SGB502222912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf250d29b260d20fdba69508c04a0b92cdcb123c7ade8e6082d51569c175489a6. 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/GBKQU2101312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81be46cd86fab38d92738303d7ac5209310f5fc0bc97ffbbfc5340c3200a3c1. 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/GBKQU2077251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace10df3a309a501710d23f9ed9df10f5d062ac16fd4a2454937ef9a2cd48cc3. 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/GBARL1900930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2f91fd89e3b4a4a06e5c8920d4655307cb7dffdde426ff712b8b7d39a0b6bb. 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/GBMJG1916790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8beab6de7b5afb05c34faad3253896725fb89ca12b7d387aa90db58d964421. 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/USA2P1809461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19f1cdb07fb218c02e240b1fee457657b597b3808563ddceda07b7296bd5faa. 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/USQY51714902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb17b792953ef042212e9cda2865d596e84d830dfc471f4429dde1784bd065d7. 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/USQY51712534.
Betcha Can't Wait - Sunship Remix (Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1927ab7839cc6ca565887091c11792e310ba800ebf3ebe48b5730311cde22bcd. 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/GBVVQ2001117.