1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x306cba5e75af198ea7e5838e2558d30359c05d8ef93843c2b4f4fbb65b907abd. 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/ac5954ba-1732-4d0d-a87c-db2c8efbf7a8.json and https://artists.proofprofile.net/proofs/artist/ac5954ba-1732-4d0d-a87c-db2c8efbf7a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vajan Sind - Lenny LaVida Extended 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 → block OTSBitcoinBlock must exist at that height 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 0x321cffea3e56954b7062041ce763bb83dfd16799cf5dcfb901b49e850299e712. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/EEPK11400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bad7dea4ddf5e2cfeb1491bff21c1bb0bc1e00d920ff74997e8ad0565a03c7. 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/USCGJ2063824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cc5ee7aeb5f2f43dc2f5f9932c05514a8975fe763abdb6d175a4b53a2b4827. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USCGJ2063835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285a9753d1b8e7e89cb7a0f74046ff9cde9c60ae0a9ec991a9eb792dc94f4deb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ2063842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93ed91c0ec3e790a8e0919162134f91199c6805449a64acc688f61c7c3a74d1. 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/USHM22250590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef7e49eabfe7032be5aa57d96a1aeb70a79c0a9d0db7517c9fdc52d559da7c1. 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/USCGH2516491.
Gebrüder Grimm: Kinder- und Hausmärchen, Teil 1