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 0x2c43df3acc4e234649a742ce4572d0edb8fe46909f1330e3d06e069c0bb69f62. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e74e5a88-0f5d-45f5-acba-fb37b5a9caf9.json and https://artists.proofprofile.net/proofs/artist/e74e5a88-0f5d-45f5-acba-fb37b5a9caf9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dodobennybossa - Dodo Synger Benny Andersen
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 0x458eeb9ef68508b57571929244e54de11650524ed1f613844380ee7e94469349. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKR271600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc038f84ab22944c0af0b14df9bc5403cc2f3a7b88561e854154b96c98ae5f87. 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/DKAXD9400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ee4f4d9c8dc8454c7bb0a9ee6ae1e5eee9e6cff3dd805358341682f6681d7. 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/DKAXG9547603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc038f84ab22944c0af0b14df9bc5403cc2f3a7b88561e854154b96c98ae5f87. 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/DKAXD9400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ee4f4d9c8dc8454c7bb0a9ee6ae1e5eee9e6cff3dd805358341682f6681d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:30:16Z), 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/DKAXG9547603.