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 0xd73a364ab04f50b0e6a302a58b03c0f6ea66e9ebaa620fb6a7489e86056d4f02. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbb09957-89df-4493-9a65-10850e7248c3.json and https://artists.proofprofile.net/proofs/artist/bbb09957-89df-4493-9a65-10850e7248c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Good Time For A Good Time (MonsieurWilly Funky French Boogie Remix)
Good Time for a Good Time (Stab-O-Matic Mix)
Good Time for a Good Time (Going Back To Cali Remix)
Swing 42 (feat. Gonzalo Bergara & Rob Hardt)
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 0x4f5173b0bd0e75e956eabf72746f6162816e683db487061d9cde62e548531196. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMYUY1300056.
Billets Deux (feat. Rob Hardt & Gonzalo Bergara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb7c4edad302f83ca5764a3c61578db8c89e035294aad130bd15264900c1235. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMYUY1300051.
Blues Mineur (feat. Rob Hardt & Gonzalo Bergara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476ef65f1e76514fb45b137f54de6a3c615ee97d3db31db4da28fde09782a667. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMYUY1300055.
Minor Swing (feat. Gonzalo Bergara, Jason Anick, Leah Zeger, Rob Hardt & Ben Powell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1f01a5a1c5d6dd09cd29199b0f9a4d943900f62cf8ac4cbc29516da250d7bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMYUY1300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d18cc304f3b29d674176d7ba5c5d54c380fd1911ee4cb4745719419381516b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBFH2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e0cbfd5045c9db8d8c72948a007a312541afdb39dbde66a55543987ab3bb3d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DERX41300454.
Let Me Love You - Rob Hardt Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe896c9bb94485ff2cf224b856f1cf9269d47a8ce8fbeb01949ce9bd3c5bdb211. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DERX41300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68383bb43f7fdcc978e1ccc55ff8328b26ebca6d287cdbaad86aac387373e230. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DERX41300413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fa946383b2c9fcfa94da4ff05f97ec53cd0fdd554752221471001e5ac92250. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DERX41300396.
What's Going On - Toddi Reed & Terri Green Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65ccdbebd5e143b08c87919147656f39865c4aa3641ac8b536ca54e4509262b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DERX41300397.