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 0x3b5f40e0552211e229a3efddeb53508ea0b47f0be237ddc4f168c0365c81eac3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f319848-5cbd-43d6-bd74-4972453f832c.json and https://artists.proofprofile.net/proofs/artist/8f319848-5cbd-43d6-bd74-4972453f832c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Denouement (Yes, I told you) Slowed [Remix]
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 0xa56d82c73d23d64b3fb2a131a8431bf07122079dafa4a3e0efb01c59b7d012ae. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:40:15Z), 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/UKEX32532141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb150eea46dfc4d212671bf800ae57a5415fcc0e338599b4be2845e3de580b50. 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/UKEX32532142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1890dda562bb6d76cd26646cc635546bb4322732b96f8b5112772e29424518c2. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:14Z), 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/UKEX32532143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31aa7f214e83b852a51b675b80a9a19729c04d4aabe0b3259701946b12b2d857. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:06:23Z), 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/UKEX32532144.