Sarah McTernan (born 11 March 1994) is an Irish singer-songwriter from Scarriff, County Clare. She is known for taking third place in the fourth season of The Voice of Ireland in April 2015. She repre
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088d44f3294ee30956e1fb935c36969b1fa2082062b9dd1fa25abe1cbc8a6c38. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6d1e4da-6766-4328-952f-a23e69f811f2.json and https://artists.proofprofile.net/proofs/artist/e6d1e4da-6766-4328-952f-a23e69f811f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).