Twelves (12 December 2012 – 20 March 2018) was the pet monkey of Brazilian singer Latino. He was given to Latino by the singer's manager in 2014, as a wedding gift. A robust capuchin monkey, Twelves w
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeab6c0d6f55c7be8d3c8b718b6eb6f6123fd64be363cffdd14a875d420abd26. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1542de7-c594-412e-80fa-bc20d7212c03.json and https://artists.proofprofile.net/proofs/artist/c1542de7-c594-412e-80fa-bc20d7212c03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).