Brigyn are a Welsh music act from North Wales, consisting of the brothers Eurig Roberts and Ynyr Roberts. The brothers formed Brigyn in November 2004 with the release of their eponymous debut album.
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 0x8087d253700898791cfa8ef4a06cdcd5203b375996aa9b3c7ed1badec3a6261c. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66478ef4-5441-4eef-9ec4-bfcfaa9b6597.json and https://artists.proofprofile.net/proofs/artist/66478ef4-5441-4eef-9ec4-bfcfaa9b6597.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).