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 0xa9d3cb2b3e7807b0a4090ee5dcffe83fc5a2e1f9127aa5a3a2a0ce86a6b6695e. 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/43c8dd15-e653-4233-b66a-47c500df7b56.json and https://artists.proofprofile.net/proofs/artist/43c8dd15-e653-4233-b66a-47c500df7b56.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 0xc091502097862986e795226230cc0abe68f35c40d886163fe499f9230c372baf. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ITM681100218.
Drifting All Night - Extended No Cars Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab176a39958b8df6c83c73cf6e2fc16dd4342f880d0a825b7d0de750f8cb3ef1. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:28:55Z), 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/ITM682000393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022b0f91155e6f7a351f90a2265c61272ac0356a007059b65a89bde682aecea9. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/ITM682000385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5b4c6701d8991febec01c6c0268a755eb06039c1002de8e2a4ba80520ae276. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/ITM681200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c46dcb2efc56866f2a9c982da784926936fdba29a2dc2da0d68d4f1292a23b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITM681700362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c42b3887a679e7329b306bfd928af279708e6b8a75654a82f45055fbda2e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITM681200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37ff7e08fbdc47a2664917303fb477b6f67d21d0b375400b06a09cd77d13bb5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITM680800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66de283075739ed6dde189d56e2bc82bf0a9bfd5d68bb73ac39ee71f2989a1e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITM681400294.