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 0xf581b42656a73b06ef121a30a7ed77d780a10276ee088fe48955f799420b0b86. 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/b79d8f19-7c71-4470-9051-ccf7625af220.json and https://artists.proofprofile.net/proofs/artist/b79d8f19-7c71-4470-9051-ccf7625af220.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 0x4633daff8ec03500378fd5eaf2e744c7682befdf2d961e17a45786398289c7d8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/761I49eeoqyoVZH6Ivgxsv.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/761I49eeoqyoVZH6Ivgxsv.
Premeditated Murder PT 2 (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625a4d205458250abf839bac214462360b72cd3d4a982361767443480f4b972d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7n4gbwB0gXXpahhzQIPHAD.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/7n4gbwB0gXXpahhzQIPHAD.
{"copyright_id":"0x5d5f180413a7fcf1a81b6006e64f6bab993a6f08ec5cfadf0f9d241807cddc7f","isrc":"CH7819577284","name":"Clout Chasers","registered_at":"2026-06-21T08:27:23Z","spotify_id":"5lssujszqOSE1n0Tocd8Gj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5f180413a7fcf1a81b6006e64f6bab993a6f08ec5cfadf0f9d241807cddc7f. 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/5lssujszqOSE1n0Tocd8Gj.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/5lssujszqOSE1n0Tocd8Gj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625a4d205458250abf839bac214462360b72cd3d4a982361767443480f4b972d. 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/29JSScwWb7ulR2ig2U9mgt.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/29JSScwWb7ulR2ig2U9mgt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756948e4007f30b8d692620d299956f066360064ddc92930f23eb6d62e467a52. 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/3XNN6LYNhQhafsW4rdTaq5.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/3XNN6LYNhQhafsW4rdTaq5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4470205b376c806579c65408adca4bff7e45a4517214fd4ec5fc6931e8bd13. 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/13Qx8GyzpNlqYrJfsouFAd.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/13Qx8GyzpNlqYrJfsouFAd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe139d45f371fd3c1a0cec4ce01d37002be09bd6b2014327c0d5981dc83f612d9. 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/5T2dtrTfXc5wE4F8sGQQWm.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/5T2dtrTfXc5wE4F8sGQQWm.
{"copyright_id":"0x05a9b124aac91b72cb7ca4768d62cc1262bf273feeeae85213bfa8bcff9c9147","isrc":"CH7819577310","name":"Out Of Luck","registered_at":"2026-06-24T19:44:29Z","spotify_id":"7ePw1TmUHRjBltPlvKLXtT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a9b124aac91b72cb7ca4768d62cc1262bf273feeeae85213bfa8bcff9c9147. 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/7ePw1TmUHRjBltPlvKLXtT.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/7ePw1TmUHRjBltPlvKLXtT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b5f600d5abf988399233d075cfd2dba9e632188004e18974f96d64af9fe009. 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/44hQuZY1H6yNNy1lN5zyWt.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/44hQuZY1H6yNNy1lN5zyWt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715015a77ac912aa1b58245314cb329ce91c8e875b9780c34f1078604d0e2296. 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/2e1mB4K84pOa8FN1wGeTnk.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/2e1mB4K84pOa8FN1wGeTnk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29aa4f577b19466b2c6fcc9b22d66250aefada5d20518f69c5d77d381f0bdea8. 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/1r0ddGe8vtWSnFdBGvGPf1.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/1r0ddGe8vtWSnFdBGvGPf1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5feac4943bcbb8738c6c769006af70c3c03c8861d781d344945a495beab813a3. 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/7AdjRlT0VcDHyvCH88HjSV.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/7AdjRlT0VcDHyvCH88HjSV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5feac4943bcbb8738c6c769006af70c3c03c8861d781d344945a495beab813a3. 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/7hJDmcLOeNLLBifn5AXLbf.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/7hJDmcLOeNLLBifn5AXLbf.