Katie Wighton is an Australian singer, songwriter and guitarist and member of the ARIA award–winning folk quartet All Our Exes Live in Texas. Wighton released her debut extended play in 2013 and her
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 0x4c71e42aaa6ef5a15315069426de25ce35da45cc97e7901885f67c53afac2a5f. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ad51c8b-17ea-42c7-9f52-aad30b1baa12.json and https://artists.proofprofile.net/proofs/artist/8ad51c8b-17ea-42c7-9f52-aad30b1baa12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).