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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba4b8a0bde00771cd51dee8cd415a36edc04ab3ddd051f1258b058201dacc5. 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/e1b2d344-68dc-4737-b19d-f6567272922d.json and https://artists.proofprofile.net/proofs/artist/e1b2d344-68dc-4737-b19d-f6567272922d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Is the Key (Love Parade 99) - Short
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66377e3389fa8dce813cacc9e57209be0b5fb93a8f2539ec9159ad8c907d6f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEE199900074.
Music Is the Key (Love Parade 99) - Original
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097e8e9b00ab28251bf409e2b324e94588b40b1f5ddd68ac5075810c4a4a3607. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEE199900076.
Music Is the Key (Love Parade 99) - K-Paul Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9489944e5612fa480c5a0550f10890365ab30a93ce9d5a1debd7ac72453151c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEE199900077.
Music Is the Key (Love Parade 99) - Tekkno Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80548d0d52d89277e7dde2bf576d74c6ae915d2abbe7b16df54e9afa8c4bfa7b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEE199900078.
Love Parade 2000 (One World One Loveparade)
One World One Love Parade - Dr. Rhythm vs Dr. Motte Acid Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464e8ef1f26d7bfd61dd7855c11ec38f07e8129bc1c15b813a99c50d53beab92. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEE190000068.