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 0xb109401c1d25cd57810f447dfaac90eb8236df7f5dbc5ff07e05491e182e041d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ad142b7-7794-45f5-883f-f3370c77000c.json and https://artists.proofprofile.net/proofs/artist/4ad142b7-7794-45f5-883f-f3370c77000c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Where In The World Is Billie Essco 2: Browne & Bleu
Why I do em Like that (feat. Billie Essco)
{"copyright_id":"0x75e289e1e6637c8f74eefa7a75b99eeb7ba3ca0d5fbd256d068b71d2ad4b7f21","isrc":"USUYG1390887","name":"Why I do em Like that (feat. Billie Essco)","registered_at":"2026-06-01T16:07:05Z","spotify_id":"1zBPkwg2oEh760w20qbJ9E","type":"track"}
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 0x75e289e1e6637c8f74eefa7a75b99eeb7ba3ca0d5fbd256d068b71d2ad4b7f21. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1zBPkwg2oEh760w20qbJ9E.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/1zBPkwg2oEh760w20qbJ9E.
327 (feat. Tyler, The Creator & Billie Essco)
{"copyright_id":"0xcf443b20a9bc81b8fa8258eb7335397343a05bd36683f34019aa14f92b63c961","isrc":"USUYG1305213","name":"327 (feat. Tyler, The Creator & Billie Essco)","registered_at":"2026-06-01T13:49:47Z","spotify_id":"5sxRbu2Oi9lgmLO8taA3Rf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf443b20a9bc81b8fa8258eb7335397343a05bd36683f34019aa14f92b63c961. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5sxRbu2Oi9lgmLO8taA3Rf.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/5sxRbu2Oi9lgmLO8taA3Rf.
Cafe Mixed W the Anti (feat. Billie Essco)
Designer (feat. Kane Wave & Billie Essco)