Gwyneth Herbert (born 26 August 1981) is a British singer-songwriter, composer, multi-instrumentalist and record producer. Initially known for her interpretation of jazz and swing standards, she is no
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 0xd86ce2e270f56830869933f9471e3f16aa8dfdf3bb36c53c512e700390362f66. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adbbf334-a4a6-4bfa-9375-6937f4e0e26c.json and https://artists.proofprofile.net/proofs/artist/adbbf334-a4a6-4bfa-9375-6937f4e0e26c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).