The Fender IV were an American surf rock band of the 1960s. The Fender IV were started up in Baltimore, by guitarist Randy Holden. Although almost prevented by an incident with a bumble bee, he suc
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 0x1b08cd76a09b2ebfcec82433c186a42bdad58415bb2fefa32411d6962e2ecb4e. 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/7572719d-c7a9-4566-aa2a-9ce2c912ea71.json and https://artists.proofprofile.net/proofs/artist/7572719d-c7a9-4566-aa2a-9ce2c912ea71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).