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 0x0340e51e257d9e741c632e75e9b1eaef7c31cd3aef53c447626460c2b392c2ae. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1901c861-4f08-49c2-9878-ba617c4603f7.json and https://artists.proofprofile.net/proofs/artist/1901c861-4f08-49c2-9878-ba617c4603f7.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 0xe242e4503ef1a4337dbf002863e2c89074ebb49ea109aad5e57c5bd3e216d7b9. 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/FR9W12433765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd24af7187c54c76f11b9132a79a3fce1227a62e3991aab3bbe7b5871881f5f8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:14:17Z), 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/FRR642001684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a0b10560cb39d025d23ae2acd92c10794b9d5477870a97a9f982234dbaa431. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12250221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6498edf8e46676bbaf3e72bc5bbc98a94e2fa74a361db52dd2ac6711b4dee3d5. 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/FR9W12243537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ace97637de7ab68c51a12cb7e6e7697aa7a846cb584baf09b0553f533b6019. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12463179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b78ea27e9cf5f287e194476eebe2025da65a8f9ec52346e62cd523e49c3cff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12453213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe242e4503ef1a4337dbf002863e2c89074ebb49ea109aad5e57c5bd3e216d7b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W12433765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2d25dac4925d879f9caf506509d4d9d393b32c2409921d7c63e33d73df71b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12504677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b78ea27e9cf5f287e194476eebe2025da65a8f9ec52346e62cd523e49c3cff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W12453213.
Éternelle - Live au Lieu Unique 10.01.20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2274fbf34205daf09ce87409a709b30fd4d9235fcf32aa454e1c89e12e1166fd. 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/FR1Z42020351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75d31dce4e778e5a4ae43a8eddfd5492ed7048d344f0cc32b934d1efbea3b26. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12524672.
Tu as vu comme de peur je pense à moi d'abord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe635f669320919b5be408504e892ae45a0c7dc350f82a66dee38fdfcf81fd9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12523902.