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 0x70e2a9d7300988fda5b5e5dc34820be0cfdd6064cf2b755dc74c14a8ec63552a. 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/c3107167-bdbc-4b10-9c22-70daa6f5a879.json and https://artists.proofprofile.net/proofs/artist/c3107167-bdbc-4b10-9c22-70daa6f5a879.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Inspired By the Works of David Lynch & Angelo Badalamenti
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 0x5f4cc4ed0ff65bd2fe2d08d566c110e857e236c3e22cd98cfffe2bcb57f18fc9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:00:45Z), 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/USHM81223426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21be63c9a4e37002827feefe8c616706b824e18a37c603b956d0ed6492804152. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM81223427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc74f2f87b7d2231dd7e008e04a8e74d5617c4721fff0fb94fed2e790ac3a56e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:11:30Z), 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/USHM81223430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2f3ab95d5fdc447a908c17735fcc92873fa43da41028ecfb063f2911f34621. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM81223439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42887ffa95312b41e57a9ae19103cb4939a0de958774dbc67c8f9fdb86f379ea. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:06:05Z), 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/QM5321500013.