thumb | right | alt=Emperor Claudius (reigned 41–54) | Emperor Claudius (reigned 41–54) Claudio is an Italian and Spanish first name. In Portuguese, it is accented Cláudio. In Catalan and Occitan, it
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 0xa0bdf0e66c7949db8ef5e7051efb3d3509ac4ac515e264ed54593ebb25faeac2. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29ff5f01-5048-44f2-b3aa-af166fcc3ab1.json and https://artists.proofprofile.net/proofs/artist/29ff5f01-5048-44f2-b3aa-af166fcc3ab1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'Orchestra Italiana - Only Music Claudio Baglioni Vol. 2
L'Orchestra Italiana - Only Music Claudio Baglioni Vol. 1
Bonom Chinois (taken from Soul Sok Séga)
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 0xc130510822351b9f57f6605cfe1aee2dc66d55c4833bf4ba5eaa7806aed7a1e4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR4DZ1002600.