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 0x310c5a51fb58001ffbbbc20048b2762287de6d3f2d2a808a937527aa7c12cc73. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35884667-f9ed-4d52-b20c-b61df25051b2.json and https://artists.proofprofile.net/proofs/artist/35884667-f9ed-4d52-b20c-b61df25051b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
So schöne Engel (Anstandslos & Durchgeknallt Remix) - Extended Mix
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 0xeb9c9cd3efd77756fed7d3fd9ac71b6346209207d2e1db04ab2982d5f06ecf39. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:57:53Z), 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/DEQR41701089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66acc39eee4d7d2177fb8cdbfd456bed0432cf176c3b3380037c3d6add343ee. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:02:39Z), 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/DEVS22201155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb434926ea3a18bba0ceac5240158d08c6fe0d5bcf8d59fefd6818c6549da9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEA811801799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bb434926ea3a18bba0ceac5240158d08c6fe0d5bcf8d59fefd6818c6549da9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA811801799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e19f8297cd13fbe97181f03cb30d9fa96ea5e7f8835b4ba31c7c14c626871c5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA811801800.