thumb|A lutin. A () is a type of hobgoblin (an amusing goblin) in French folklore and fairy tales. Female lutins are called (). A lutin (varieties include the Nain Rouge or "red dwarf"Ebenezer Cobh
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 0x76cfac29d8d62c90222a9436ebd3073b40054fc72f41a22fa137ae107fa55f71. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66c0a211-d6bf-4d43-991d-1cf9b464bd80.json and https://artists.proofprofile.net/proofs/artist/66c0a211-d6bf-4d43-991d-1cf9b464bd80.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 0xc16435b2b7d0e132dfb8ce32e2a3c905e8b13f0a8e5783ce5f87f2520ca5709c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/FRX281723595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48269e500ae91803cd2dd7706e22abf6cc664e097736f82ad1acfe55bbeb3f5b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:21:24Z), 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/CH6542011781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0663aabf52ce1716980597a194927ad5fb42d16061acc63f43fea796adf6611a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CH6542428876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d1a4a7f5a40c9096ee8baa03fec887f1052fbbec331a19c4822bc4e7dd7ab7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:52Z), 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/CH6542479476.