Snorre can refer to either of the following: a Norwegian male name. famed Icelandic writer Snorre Sturlason an alternate name of Heimskringla, the saga Snorre Sturlason wrote about the Viking age.
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 0xe29fed3e2a9916b198a192bd2707714dc230cfd18bd6ce2da436ee947dda229e. 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/1c362bdd-4751-47d1-a56e-0cafdb0032e7.json and https://artists.proofprofile.net/proofs/artist/1c362bdd-4751-47d1-a56e-0cafdb0032e7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.