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 0x7ee8b04cf02492af65ef7385075dc6b1c4d0587ef864c26f29f305f100628820. 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/8a7f5c13-a087-4bae-8a8b-1ee4e556fa53.json and https://artists.proofprofile.net/proofs/artist/8a7f5c13-a087-4bae-8a8b-1ee4e556fa53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Captain Santa Claus (Pirate of the Snowy Sky)
The Pirate Shanty of Christina Anna Skytte
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 0x09010912aa23bba9bd1c4f700756eebf9d5f4963731a97fc495f2fd87029f853. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:14:50Z), 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/QZHN32544661.
The Pirate Shanty of Anne Bonny & Mary Read
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba2cb86e6324165f9671e947b03444617a75ec2d9008caf480449cdb025c4ed5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:18Z), 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/QZHN32544715.