Камерный хор Московской государственной филармонии
{"copyright_id":"0xa1d728817dda5d0439ca9eb26f3b70ed30d10e9143e5c8867b867a64778c7ddd","name":"Камерный хор Московской государственной филармонии","registered_at":"2026-06-21T18:10:17Z","symbol":"NIM1995847","token_address":"0x506ffdcb189ba09416e09aefa102f4da54f3e835","type":"artist","uuid":"fd82b48b-e389-4379-a7d4-15271bf15e3d"}
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 0xa1d728817dda5d0439ca9eb26f3b70ed30d10e9143e5c8867b867a64778c7ddd. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd82b48b-e389-4379-a7d4-15271bf15e3d.json and https://artists.proofprofile.net/proofs/artist/fd82b48b-e389-4379-a7d4-15271bf15e3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).