1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x52b1b76665d056aff23f497ffe9bcec83f7a91ef943c0ef60507e5fce34f1a2d. 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/fb1f6115-1a07-4fdf-a3e1-7d8936c68653.json and https://artists.proofprofile.net/proofs/artist/fb1f6115-1a07-4fdf-a3e1-7d8936c68653.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lie To You (feat. Raheem DeVaughn & Devin the Dude)
Welcome To The Revolution (feat. Kamilah Sumner)
Weight Of The World (feat. Stat Quo & Jared Evans)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9d664ce37abbbf949c6d6dae2f7d11beb9f3f219fc43442ac0733197ce231e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5ij2J77dn0pggKYG9JdRT2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5ij2J77dn0pggKYG9JdRT2.
Ludacris Presents...Disturbing Tha Peace
{"copyright_id":"0xcf39b50722ba64b5befed20addee674fab834a66c8429f094f59ca92edac7239","isrc":"USUM70506900","name":"Come See Me","registered_at":"2026-06-21T04:37:40Z","spotify_id":"6yUWyFjpjQoayvQvaXGl5N","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf39b50722ba64b5befed20addee674fab834a66c8429f094f59ca92edac7239. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6yUWyFjpjQoayvQvaXGl5N.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6yUWyFjpjQoayvQvaXGl5N.
{"copyright_id":"0x8e149ba76c3e0d287caee25be3ab29fd9084f02a5c91890240e34816e3ca0e3e","isrc":"USZEG1800133","name":"On Top Now (feat. Stat Quo & Dr. Dre)","registered_at":"2026-06-21T23:01:27Z","spotify_id":"4FuHDxtJI1RYvHAhrYXWSH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e149ba76c3e0d287caee25be3ab29fd9084f02a5c91890240e34816e3ca0e3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4FuHDxtJI1RYvHAhrYXWSH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4FuHDxtJI1RYvHAhrYXWSH.
HaveIT Music Presents... Shutup & Listen, Vol. 1
The Source Magazine (Fr) Mixtapes, Vol. 7
Get Low Records Presents Ghetto Monopoly
{"copyright_id":"0x81d3dff214f031c9ed2ac52cf195a94a2e047dd75d774daea454c7b011f7fb1b","isrc":"USIR10400821","name":"Spend Some Time","registered_at":"2026-06-04T07:53:48Z","spotify_id":"1mHRciKUBSGQml3mQFGMsf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d3dff214f031c9ed2ac52cf195a94a2e047dd75d774daea454c7b011f7fb1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1mHRciKUBSGQml3mQFGMsf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1mHRciKUBSGQml3mQFGMsf.
{"copyright_id":"0x4523dc02bf0cfc6d180f14fbfcc2ac52f9fedee18ea38dab799aa9ee63bcc6b3","isrc":"USUM70618645","name":"Cry Now - Shady Remix","registered_at":"2026-06-10T01:39:48Z","spotify_id":"5jDxff3YMtdz4hJY69yXZP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4523dc02bf0cfc6d180f14fbfcc2ac52f9fedee18ea38dab799aa9ee63bcc6b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jDxff3YMtdz4hJY69yXZP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5jDxff3YMtdz4hJY69yXZP.