Participants Of The St. Kougioumtzis Concert
{"copyright_id":"0xe6971e95dce08bb9d752cdf77dd08f9f5aac0d50894226cd88a0ccb58b7e8774","name":"Participants Of The St. Kougioumtzis Concert","registered_at":"2026-06-16T18:43:15Z","symbol":"NIM1141484","token_address":"0x9dbb3672714dd6f9e3e5221d32487bb13288fe9a","type":"artist","uuid":"52aae1bc-b772-4ced-a66b-e559943ab77b"}
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 0xe6971e95dce08bb9d752cdf77dd08f9f5aac0d50894226cd88a0ccb58b7e8774. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52aae1bc-b772-4ced-a66b-e559943ab77b.json and https://artists.proofprofile.net/proofs/artist/52aae1bc-b772-4ced-a66b-e559943ab77b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).