{"copyright_id":"0x83da4c64f8726b07cda3ecf1d708b8dbcab3dda8bfd6b5d229db0be31cdecb7f","name":"Kontroll Csoport","registered_at":"2026-06-15T02:08:00Z","symbol":"NIM0648584","token_address":"0x1cc8424f44c055a28be6ed76631d9ee5417afb77","type":"artist","uuid":"cdb1e2c9-afa5-45df-a015-b9f6b0f1d8f0"}
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 0x83da4c64f8726b07cda3ecf1d708b8dbcab3dda8bfd6b5d229db0be31cdecb7f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdb1e2c9-afa5-45df-a015-b9f6b0f1d8f0.json and https://artists.proofprofile.net/proofs/artist/cdb1e2c9-afa5-45df-a015-b9f6b0f1d8f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x562bfaf1201e3b7666b8ddade9d9271c34b57c1bdb386e676859f1a42772bd8b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HUB281201806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2461c7d80bf9f8032cf757ead13ba71d0e9f981bf4c17ec2950b6d96ed58027. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:42Z), 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/HUB281201809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe001759485bfa4d0cc71dc5471104ab094e0b54d5570136ad5898bff76e809a4. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/HUB281201817.