{"copyright_id":"0x661019f1330d085d59650810922e3d910a4ecab210f4fab8d002cf9279bb6b19","name":"Hungarian Army Central Wind Orchestra","registered_at":"2026-06-20T17:33:33Z","symbol":"NIM1669021","token_address":"0xcb899cf8ccff8b52eccf904ff5b2f8b4b50ebaeb","type":"artist","uuid":"bca433a2-02ce-4871-9fbf-ec5352e71a86"}
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 0x661019f1330d085d59650810922e3d910a4ecab210f4fab8d002cf9279bb6b19. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bca433a2-02ce-4871-9fbf-ec5352e71a86.json and https://artists.proofprofile.net/proofs/artist/bca433a2-02ce-4871-9fbf-ec5352e71a86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marches From Hungarian History (18Th and 19Th Century)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398873765b1e92bdb6b735bc466a6bccdb8b143067f97b2c6bffc43225c325fc. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:43:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253144709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467f18b01b848763e6d6be263d4734fc389895fed21796743bba5b1d2558b503. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:18:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253144713.