Cordell Jackson (née Miller; July 15, 1923 – October 14, 2004) was an American guitarist thought to be the first woman to produce, engineer, arrange and promote music on her own rock and roll music la
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 0x60d0871669dd2e77f1ff40a2c937f85aa83d77d10e1c54c87e3cd30a70e7cf74. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92782667-3359-45e1-a49f-a6d902dacd46.json and https://artists.proofprofile.net/proofs/artist/92782667-3359-45e1-a49f-a6d902dacd46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).