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 0xbeed069bd5ae72abd999d5c2d39cf4be2377c46522ee5a3610ff125b4b58214f. 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/3856d34d-579b-43fa-9867-8a295f8670d9.json and https://artists.proofprofile.net/proofs/artist/3856d34d-579b-43fa-9867-8a295f8670d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xd0b18bbb493c3f6fbfcad1e92d233d4607e37318f046df1a0a58d59912706df2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USLD91716391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203e40f9caa6f43e6972de7d564cb070431c4717d81bd5726e43c955456e295d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZFZ72461739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ef942ba52f1d8cf9c043194b1a1e8165f6d4fbd2b97709d50b75cc488e0e66. 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/QZWFM2428800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c31794a9a582b1c68cdcc011f2bbd87a6496dd702cf6d4f33954a8a122fc2d7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNWT2456181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb223b48113d0045eb0dc0d47ec6c1f17273edd305227b96f5c70c4b2c4406fac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFL2382995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4eb6ab8c6d8cd9387c009ae1ee267650b7dc44b59506c6b293f005fb8365e8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWFM2428801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad7cf78e3270ed3aff87678a019d1cb389211900f3312639b6443181089ba54. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZWFM2428802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec798bed53dd445d9b0e9a9ad36eaa05f2fca8aa9fdf6be6e0902c0edd41bc9. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZNWZ2435171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1249d7bf3346317dab8f28ca0d6e9b0af74d424c0867a0d1907d8f7c9980a. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T07:55:37Z), 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/QZHN62542674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec3ae0160ed3601fd61d55677699419095651b32a8bfaf9ebe837b903c3b543. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QT3FA2511449.
You'll End Up Looking Like the Scary Bitches