Bruce Botnick (born 1945) is an American audio engineer and record producer. He is best known for co-producing L.A. Woman, the sixth studio album by the Doors, after producer Paul A. Rothchild quit du
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 0x08a376d849e5eb476c64c2029a5646f6e0f7dbe725552db338e5c5374a7ca823. 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/40e956e5-5e9a-49b1-9f27-fcc1e5d59218.json and https://artists.proofprofile.net/proofs/artist/40e956e5-5e9a-49b1-9f27-fcc1e5d59218.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).