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 0x7126be9b8fa756ca63b5d4b5f0c49af19e0966eb076c445a6d0badc44e34fa4c. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c16300a5-f971-4415-a730-2d04e6192335.json and https://artists.proofprofile.net/proofs/artist/c16300a5-f971-4415-a730-2d04e6192335.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Voli me draga, voli me ti / Umire sunce a rađa se tuga
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 0x056aa51386ee34ba0c99a695535eb1b49a8093446c2411f535f5eeb73320d996. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:22:57Z), 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/DEQM91205848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb049331dc329e8980ef7b2b0363207e20b259f0f7954ebb8a933d86386459a00. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEQM91205854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45dadddec651640fcee629a79f2974f44b96a8f5090f1bf295c8aa0852233b1. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USA560672545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd006aa6c7ddf4ed9f96f800703ba9d1b37028809a360904481b02665cda86abd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USA560672558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22942628061cb726c6678ef69b468c63d906a0bb6b4b0b6c82feb14cca60fe58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USA560672564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5835d554eb4e29528c19fd809cf642e40e555d70123cbac200bb2ea7d1e845ab. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:18:24Z), 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/USA560672577.
Ceznja (pismo sinu) (Serbian Folklore Music)