The Frequency was an independent rock band from Los Angeles, CA. Marc Cazorla and Alex Stiff, later of The Record Company, were the core songwriting and recording duo behind the music. They used an
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 0xb70ce1240979983b4eba43be1be4771a730220d2560f01505392e49beb6acf2b. 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/654f8988-8f76-4461-aef3-39025a1fbd59.json and https://artists.proofprofile.net/proofs/artist/654f8988-8f76-4461-aef3-39025a1fbd59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).