thumb|Earthlight illuminates the dim side of the Moon, while direct sunlight illuminates the bright side. Moonlight (or moonshine) is light from the surface of the Moon, consisting mostly of reflecte
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 0xa424c7e41fac6b649aa214cad281c654f435190774c0f4c613a0621acb1e211f. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9cfaf3e-2e16-417c-abcd-5b0d82b59cea.json and https://artists.proofprofile.net/proofs/artist/f9cfaf3e-2e16-417c-abcd-5b0d82b59cea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).