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 0xcd7467af5a07206d29b35d4ac3f06fb400d64b823805f00d1fdfd58812ed7133. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d11057d9-e20d-4b5c-bb82-a36ea0b81e02.json and https://artists.proofprofile.net/proofs/artist/d11057d9-e20d-4b5c-bb82-a36ea0b81e02.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gas Geven (Official Karnaval Festival 2025 Anthem)
Gas Geven - Official Karnaval Festival 2025 Anthem
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 0x6c87c576ddf5fa65dd060fdb3ed0c8ee5ff431c3245e1d877be9cdb12ca98ab1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEB682500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74912a7e896e82c24563fd7aa00d71255cdd51313b1b637de94765f8871bedf8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQS91700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec60240621186c964e6819c5d39275527497f5596dca70c2e5f468e314e2d43. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL5HJ2100070.
RAW Hardstyle Vol. 4 (Mixed By Endymion & Bass Chaserz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb319ccc2c802eefcd5c3aaa13455fa2c989f6e94d3b11aa1ecfc79d425ed424f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLQS91500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c75d1820990ecaf3540a13e049803f72955b8afbd97ab505d276146f8a2123. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NL5HJ2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66580a212694a1c4c5b35c97656dd4f70bcf281beb986649a664d41477135ec9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLQS91900145.