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 0xed6725624d4c3b2d4eedbe0a0d6a32a2ebaf31d478b5435ad1a81faec54b144d. 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/1680ce43-efc4-43ed-a7ea-0b9ab5ca8d46.json and https://artists.proofprofile.net/proofs/artist/1680ce43-efc4-43ed-a7ea-0b9ab5ca8d46.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 0xdb175233661b8e226a69c73286c33926d6015b8238dd6ec73364e8bc889543d5. 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/6qBpOKZ6JgdwF7KZKnrk5A.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/6qBpOKZ6JgdwF7KZKnrk5A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e9f989b337b315ed9702c6a93b5aa37acfafa9a04558b6f861e4c0cd058143. 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/4UcgQNZuiDXvST9A02o5Wk.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/4UcgQNZuiDXvST9A02o5Wk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf41aae45384ca0bb2e3479e1b7ec876c5d968f995526a2c320e5644d7a53b. 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/53l9N8vu31dM6C58Ju5QfP.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/53l9N8vu31dM6C58Ju5QfP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea73157d879a1291ea134c0fc76a536d7985c6d0d418309370aa19bee1d2e26. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/29naD0ObuqFDuBsDezWIL0.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/29naD0ObuqFDuBsDezWIL0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c6069e1c156792bfb1575ff850f01b60f34d3ffe96ecb4f97f607ee2f1d113. 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/0shnQeNzqIB6J8oftqycxN.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/0shnQeNzqIB6J8oftqycxN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2160fbe465fb861107434525f99d06894f602dd8071d85a0d9c174c218e6aef. 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/63UMk6KGWs0tUEmh1PVHSZ.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/63UMk6KGWs0tUEmh1PVHSZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99914e9012415276ce0bb4a9dea45015fc47523e544fef83437b15017ded335d. 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/3769Pp1sQMnGue7k5srUf0.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/3769Pp1sQMnGue7k5srUf0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6373310048339f48ddac666469e60ba730319dad53c5b6590e61b1435271399. 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/2BHnKJ2GA2Tp1yOqIj8AkP.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/2BHnKJ2GA2Tp1yOqIj8AkP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f156d84ce1a2adc8200cc6b39055b5c0007cc9dbb9c638beac47aaf096d463. 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/6ivUIC12oZUoRqyBRPkx6z.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/6ivUIC12oZUoRqyBRPkx6z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2160fbe465fb861107434525f99d06894f602dd8071d85a0d9c174c218e6aef. 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/3AnAYsvCSrRJHnI57GVIHu.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/3AnAYsvCSrRJHnI57GVIHu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c6069e1c156792bfb1575ff850f01b60f34d3ffe96ecb4f97f607ee2f1d113. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wUfRzaG2dqY82FWt31ZkO.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/0wUfRzaG2dqY82FWt31ZkO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea73157d879a1291ea134c0fc76a536d7985c6d0d418309370aa19bee1d2e26. 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/05uDYnoR5MDZdfqp86etXN.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/05uDYnoR5MDZdfqp86etXN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf41aae45384ca0bb2e3479e1b7ec876c5d968f995526a2c320e5644d7a53b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4XEnVn3vG8umRmfYWgltnB.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/4XEnVn3vG8umRmfYWgltnB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf41aae45384ca0bb2e3479e1b7ec876c5d968f995526a2c320e5644d7a53b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YQ66kj6lI1AAFFPJKTh8S.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/0YQ66kj6lI1AAFFPJKTh8S.
{"copyright_id":"0xb04ca7b69c63cf3bb3931f93ccd4108ad56c97904aacc10f5eb909ab18d3cb40","isrc":"DECE72101750","name":"Vom Block bis on Top","registered_at":"2026-06-18T03:23:44Z","spotify_id":"1zI7e9GqIqJlUjhVRxIkrs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04ca7b69c63cf3bb3931f93ccd4108ad56c97904aacc10f5eb909ab18d3cb40. 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/1zI7e9GqIqJlUjhVRxIkrs.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/1zI7e9GqIqJlUjhVRxIkrs.
{"copyright_id":"0xcb301b3a8bbbb4f57e20154079bb3ed48752e3fa475b840bd576c430ac9defe3","isrc":"DECE72100394","name":"Alo Mama","registered_at":"2026-06-11T03:22:22Z","spotify_id":"368FNYGE2OrVIOcKRbIJWC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb301b3a8bbbb4f57e20154079bb3ed48752e3fa475b840bd576c430ac9defe3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/368FNYGE2OrVIOcKRbIJWC.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/368FNYGE2OrVIOcKRbIJWC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72700f2aeff1370e9cbc936e4b15c6424c108fd5fd48b82e2a615130c573f99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7IeDIvkRwve881FxgSkCpo.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/7IeDIvkRwve881FxgSkCpo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8139924267ed58a31fc9f41d768dcec0b0fdea39e75a5d596a13cf764d7abc39. 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/6GfNDDQmIni2CfFOaYUi40.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/6GfNDDQmIni2CfFOaYUi40.
{"copyright_id":"0xa6bc3e9fb1ebbd8774fcde4204cd0591c43c468e78934b1aa959821461b9fc6b","isrc":"DECE72101566","name":"Keine Kooperation","registered_at":"2026-06-24T17:10:16Z","spotify_id":"7lN4DzDrH3OfVbWCNdZCrl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bc3e9fb1ebbd8774fcde4204cd0591c43c468e78934b1aa959821461b9fc6b. 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/7lN4DzDrH3OfVbWCNdZCrl.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/7lN4DzDrH3OfVbWCNdZCrl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb301b3a8bbbb4f57e20154079bb3ed48752e3fa475b840bd576c430ac9defe3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5z45D7mWNvjQK1lQQkLpOz.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/5z45D7mWNvjQK1lQQkLpOz.
{"copyright_id":"0xcb301b3a8bbbb4f57e20154079bb3ed48752e3fa475b840bd576c430ac9defe3","isrc":"DECE72100394","name":"Alo Mama","registered_at":"2026-06-11T03:22:22Z","spotify_id":"4eMsFFPGizoOBch2FQNj2h","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb301b3a8bbbb4f57e20154079bb3ed48752e3fa475b840bd576c430ac9defe3. 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/4eMsFFPGizoOBch2FQNj2h.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/4eMsFFPGizoOBch2FQNj2h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72700f2aeff1370e9cbc936e4b15c6424c108fd5fd48b82e2a615130c573f99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qt00EdWFg8aUuSLDfKl4z.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/1qt00EdWFg8aUuSLDfKl4z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72700f2aeff1370e9cbc936e4b15c6424c108fd5fd48b82e2a615130c573f99. 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/4t04nLDXMxdAm88zYLXhgi.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/4t04nLDXMxdAm88zYLXhgi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04f67672260d7f1150fc63ae469d836d2c44ac65bbfb79f39867b127d798a26. 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/72fUZY70G9JNK7raP8Pfpe.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/72fUZY70G9JNK7raP8Pfpe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec8ecf2e2883403bab8084c55009a04df7b113c48bc40bd34890448871a7212. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7jaG5KzSz1cFiagpVZY1u8.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/7jaG5KzSz1cFiagpVZY1u8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec8ecf2e2883403bab8084c55009a04df7b113c48bc40bd34890448871a7212. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jk1NuMQqrNJUBTnzH1fWY.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/5jk1NuMQqrNJUBTnzH1fWY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16ed60699218f2029b648d4c49239d2e2d998a90225a958af8dfa2e852ee59a. 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/3aR9KFbBX4CwSy5FM8KsJv.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/3aR9KFbBX4CwSy5FM8KsJv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8692914bc1b2eb11ef62e46e474ae682785e002fbd280c04863e8dd4ee4729d7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WARZxPIv05ULgdajhxSX8.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/1WARZxPIv05ULgdajhxSX8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908dcbaa345db3ab2600930c8edc3d45c75771c52fe433d837a7fb6f53646e44. 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/2HmOov6FjsVtDA4VeUTaV3.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/2HmOov6FjsVtDA4VeUTaV3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169e1fab292b2b880070345ad84b310d0b63ff28a4c103d1249bd5b7bc7337cd. 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/6JBNCrdAwyVAxRBLGAnS36.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/6JBNCrdAwyVAxRBLGAnS36.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0608c74f67da202892807f3ee96df581bc8129a5d28c004676c5325f92a711. 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/3pG4pLK3IxrP0U6iUfOfms.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/3pG4pLK3IxrP0U6iUfOfms.