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 0x423c258728e971686b845f52595ce4903e065fadb2296f510b701055e7d03f33. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2282f1ef-9606-4711-922d-3bcf66ff9968.json and https://artists.proofprofile.net/proofs/artist/2282f1ef-9606-4711-922d-3bcf66ff9968.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wenn ein Engel tanzen geht (Oliver Will Remix)
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 0x3f5c570e2e4d92a166fd3fbc6a4e31b9c08389cfe85fea25b3ced1530cc85d44. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DEZ922000113.
Falls Du's noch nicht weisst - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975feba22cc1c39c0620e1b172b73df89eefb447cd807ce0aa80f99e7bac332b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEA652100036.
Falls Du's noch nicht weißt (Oliver Will Club Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b7779e6199018b85f7e5ca9988d617f58bf8f54dc2e7a5690f7cc236a77145. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEA652100286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048a8470621d668aa65ce574b0808733f5466d28eb10d440e1691568b0da1f77. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEA652300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88311ad8e75411a523f4a12f5ddc9fabbbd76406319ab13aebf405207d48a422. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:21:08Z), 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/DEA652400028.