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 0x26e4db9a9b03bc036c3bcf89d168e1144b3e1e2b3e755a6698db8957330d1fa2. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac8b5b1d-ce03-419f-aeff-48dd2dd6f756.json and https://artists.proofprofile.net/proofs/artist/ac8b5b1d-ce03-419f-aeff-48dd2dd6f756.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eggstreme Duck Dash (Original Game Soundtrack)
Entrance of the Gladiators (Eggstreme Duck Dash 1)
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 0x022b21aed15707f0f4a8fb9da63d1508f465d2cfa80873c3da37f2b412adca18. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:23:30Z), 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/GX8LE2343173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e3a68ade5ec5eb17e8b8484205d61e2b8d2a90407ac69f1b20877a7f34e438. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:09:18Z), 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/GX8LE2347725.
Minute Waltz [Eggstreme Duck Dash 3 (Original Game Soundtrack)]