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 0x03ad13660453c5d6477ad679ff4755303d7415ebebbbe51f7653d9f942e174fc. 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/59a9bd6c-d774-43bf-a33d-d56c21682d1a.json and https://artists.proofprofile.net/proofs/artist/59a9bd6c-d774-43bf-a33d-d56c21682d1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xc7ca2ebddafbcc046a4540721e39bcc6fbfe9fd3991a3e47f67b09c2de5db66f. 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/0rUiQkZpPg5ZTP6BZdvnf0.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/0rUiQkZpPg5ZTP6BZdvnf0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f80e4d83546ab4c5d9b62d69cf8dca804689d8a9655714c5be768a243327297. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Wupas2KTL3nsKNAxZClxk.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/0Wupas2KTL3nsKNAxZClxk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43db41739f8dd1cfc0f847c49c8c6fab0775c0132ccecba6cac7822b8e968f8e. 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/59faaor1QeaGp7zgCPCelk.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/59faaor1QeaGp7zgCPCelk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7aac97e177460e5d10678930b5510d3a2a9582ebaf3c8067a28adf51ed204b. 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/7apuyfGc8aejWeFhYEduWM.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/7apuyfGc8aejWeFhYEduWM.
{"copyright_id":"0xd821b76395e5b547b1380e2edb1d5c6d3ab62ad45e8b7d5bbbc5783fc37d5be5","isrc":"GBAYE1900534","name":"Out My Mind (feat. Paigey Cakey)","registered_at":"2026-06-24T11:37:00Z","spotify_id":"3uFR5uzSAKMYYBpq876LZn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd821b76395e5b547b1380e2edb1d5c6d3ab62ad45e8b7d5bbbc5783fc37d5be5. 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/3uFR5uzSAKMYYBpq876LZn.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/3uFR5uzSAKMYYBpq876LZn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70311c23f9f958061695fb465ab82e69ed562aacc33cd4d6cbdb169bd2b2e89. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6TgJN868sXd2k1apF8dWdA.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/6TgJN868sXd2k1apF8dWdA.
Adeline (feat. Paigey Cakey and Hex) (ADP Version)
{"copyright_id":"0xb69f42a50c5d9277ad63fae13e6fd225f2fa3101796e320f2e4fd522aae86bf9","isrc":"GB5KW1801529","name":"Adeline (feat. Paigey Cakey and Hex) (ADP Version)","registered_at":"2026-06-09T04:46:40Z","spotify_id":"0Nl93mMRfmlYOBUbleuOWl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69f42a50c5d9277ad63fae13e6fd225f2fa3101796e320f2e4fd522aae86bf9. 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/0Nl93mMRfmlYOBUbleuOWl.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/0Nl93mMRfmlYOBUbleuOWl.