The Rozhdestvo Choir of Solo Singers of St. Petersburg Philharmonia
{"copyright_id":"0xf11453da6b4cd1b446b66486e57db544edf403ac6c9b2c4a7d804c3f165aba7c","name":"The Rozhdestvo Choir of Solo Singers of St. Petersburg Philharmonia","registered_at":"2026-06-16T16:14:01Z","symbol":"NIM1105889","token_address":"0x57197bc6b525d5b441330405315786d6273d795f","type":"artist","uuid":"4c2a047f-872d-45df-a77a-808e0b37e82d"}
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 0xf11453da6b4cd1b446b66486e57db544edf403ac6c9b2c4a7d804c3f165aba7c. 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/4c2a047f-872d-45df-a77a-808e0b37e82d.json and https://artists.proofprofile.net/proofs/artist/4c2a047f-872d-45df-a77a-808e0b37e82d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).