A remix, also sometimes called reorchestration or rework, is a piece of media which has been altered or contorted from its original state by adding, removing, or changing pieces of the item. A song,
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 0x01f30024adcceedb77492da272b8115e1a6cd951e5710a7c0db502263512e1ac. 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/87968cd4-10ef-4adc-b750-164ca89da763.json and https://artists.proofprofile.net/proofs/artist/87968cd4-10ef-4adc-b750-164ca89da763.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 0xa5ab3e2559b8283203b86da0cbed924f064b5b468c97265a690b4e30077b4f4a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FIMGM1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950389ceec48ad8a591b37dd2dfaaa9e59a0c3c006b698f987a27f754e6f8375. 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/FI8ML1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdb890ec608f05c0beb29046b0504ee75ddb0d9db9266a8af4201b653be04c7. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FI8ML1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc90a802f075ae95555f4778cc067607340418eb595f93b400380d1ebc3a06cf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FI2RX2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59b05ecb01c5f61e48fc45bb3b1dd2b0b56bf1b54bfe6481c8ecc0a2b70aa14. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:10Z), 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/FI2RX2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa338eb3b24b44530db40be090a372323c9f04780d017f10ac5c99ac7f2ce45a5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FI2RX2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe248adf8a0c6aa8e7e6b44e35c9104f0793b7ede35a404fd5104f10c42323b38. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:03:06Z), 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/FI2RX2300002.