thumb|300px|Menglöð sits with the nine maidens, including Eir, on Lyfjaberg (1893) by Lorenz Frølich. In Norse mythology, Eir (Old Norse: , "protection, help, mercy"Orchard (1997:36).) is a goddess or
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 0x9809e48b1ec529ea73e17203c5eca8109aad5b87314a2becfb9db333c21c285a. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d65ee5a-78d4-4f77-b7ab-52a93b594a12.json and https://artists.proofprofile.net/proofs/artist/1d65ee5a-78d4-4f77-b7ab-52a93b594a12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).