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 0xecd8aa1c0b7453a13c97a1c1de6728af30cde7b248db5466ff01bac13e1ff3b0. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e71f40ae-61e2-4e4a-9bdd-27eed4f13657.json and https://artists.proofprofile.net/proofs/artist/e71f40ae-61e2-4e4a-9bdd-27eed4f13657.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Out For Love (Hazbin Hotel) - Guitar Cover
Loser, Baby (Hazbin Hotel) - Guitar Cover
More Than Anything (Hazbin Hotel) - Guitar Cover
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 0x7a3fcd78c131c806b7b347c4399bcf2124cfbae05fad20447ce59832acb72420. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZPJ32415384.
Out For Love (Hazbin Hotel) - Guitar Instrumental
Daisies (Hazbin Hotel) - Guitar Instrumental
Poison (Hazbin Hotel) - Guitar Instrumental