The Hollywood Bowl Orchestra (HBO) is a symphony orchestra that is managed by the Los Angeles Philharmonic Association and plays the vast majority of its performances at the Hollywood Bowl. John Mauc
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 0x088f27eb7c915f222ce3c440fa5c2741ce1fab7a4cbb12d6e90a15515860e24d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55d1f48e-1d70-453b-b1a9-bab4814bdb7f.json and https://artists.proofprofile.net/proofs/artist/55d1f48e-1d70-453b-b1a9-bab4814bdb7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Journey To The Stars: A Sci-fi Fantasy Adventure (John Mauceri – The Sound of Hollywood Vol. 10)