Narodowa Orkiestra Symfoniczna Polskiego Radia w Katowicach
{"copyright_id":"0x4d9f783cc13ce145e9f3b45d275fde654577dc77d9e466bb4df1056c29205f48","name":"Narodowa Orkiestra Symfoniczna Polskiego Radia w Katowicach","registered_at":"2026-06-21T12:03:49Z","symbol":"NIM1918087","token_address":"0x7ad7fc54648acfcf2cb6933a6dab9d0a5738811b","type":"artist","uuid":"ed593f9c-d03d-4b8d-b86a-807a7f55c37e"}
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 0x4d9f783cc13ce145e9f3b45d275fde654577dc77d9e466bb4df1056c29205f48. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed593f9c-d03d-4b8d-b86a-807a7f55c37e.json and https://artists.proofprofile.net/proofs/artist/ed593f9c-d03d-4b8d-b86a-807a7f55c37e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).