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 0x883ea6a16baa87695d1dd267e6ad9ab9a0a57a3ff8ea6249e5717f9efe144668. 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/a76f7d5f-e4c7-486f-8577-9e4b517dffef.json and https://artists.proofprofile.net/proofs/artist/a76f7d5f-e4c7-486f-8577-9e4b517dffef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concentratie Muziek: Studeren Focussen en Muziek om te Leren
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 0x873753b4eca7ec70f9bf7581a1ae2d94551cafdfdbab453d60290fe68f5c4124. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QZWDD2377709.
Werkmodus: Ontspannende Muziek om je Beter te Concentreren
Werkmodus: Muziek om Productiever te Zijn, te Focussen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26881f0c98b5c73e96142ed7a76fefa56061daa99235d05aeb59a8a785966e6. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:19:47Z), 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/QZZ8B2368829.