, from ; pronounced: )Lesley Brown: The New Shorter Oxford English Dictionary. Vol. 1: A−M. Clarendon Press, Oxford 1993, p. 1651 is a small constellation. It is one of the 48 listed by the 2nd centu
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 0xef13498b39944fe8b1d8c0e9929222ab3b3bb4622fca01c19e04a8f637448bbe. Chain 2 (Bitcoin): anchored in block 953950 (2026-06-16T13:35:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/238f2d86-a612-4eda-ae63-524a3af7836c.json and https://artists.proofprofile.net/proofs/artist/238f2d86-a612-4eda-ae63-524a3af7836c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).