Orkiestra Symfoniczna Filharmonii Narodowej
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 0x58e4c4ada45d3cb708c6db49c9e3f5403467a1234163e2448d1bd97282b2ccc6. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82f1ae21-939c-4722-9c9c-0c7c7717ad02.json and https://artists.proofprofile.net/proofs/artist/82f1ae21-939c-4722-9c9c-0c7c7717ad02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Moniuszko, Noskowski & Statkowski: Orkiestrowa Muzyka (Mono Version)