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 0x2c07294300da7ccf32510bb6a93b9d32aceaabf66f9e9dff1975944a8979037a. 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/024b70a9-86c5-4ace-be77-72479ea9bc0d.json and https://artists.proofprofile.net/proofs/artist/024b70a9-86c5-4ace-be77-72479ea9bc0d.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 0xd4443751839dca06b6d2bd1b2f813ff038b1f7936c6f324763e2d3375c43ede6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7hvKdC5T5FkK1CGtJLahcP.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/7hvKdC5T5FkK1CGtJLahcP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4783de4e2fdae09ad0517413bb8043b77624eaf87e6429eb913e2e33991429. 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/1BZYpvC4xp6pJPteno3ZoQ.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/1BZYpvC4xp6pJPteno3ZoQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2678da978264a98ec530c465605ce431b0416f135b5d55e16326cbc7eeb7a649. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5AGlEHcBnadsfUNhzktexl.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/5AGlEHcBnadsfUNhzktexl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4838e7c71514acc8ef55264112585f14affb90ddae91e2fc3234f193d9f9f666. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/32nHhu4dyCnzUC96hq9fYs.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/32nHhu4dyCnzUC96hq9fYs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07650cba6be366210cec5cff9d289d4d536a7fa302fc47a891822f4f77348c9e. 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/65m1Vt5a0fPXMpWRJyU0gP.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/65m1Vt5a0fPXMpWRJyU0gP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252528de487f7b180e387c4f324389c5faa0e0792fe4f124d767b29783c4ab6b. 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/6E7MmWhHHTV3dMbGxtoJFs.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/6E7MmWhHHTV3dMbGxtoJFs.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978ecdffa5bafed5dd911833d9f4ee48e6feb874f07cd21cf4212c8b5be9c92. 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/4VOUbjxL8QnPpelIBn4Qo5.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/4VOUbjxL8QnPpelIBn4Qo5.
{"copyright_id":"0x0db18ff2d0e2f145cf1626631eff7d8b2e69087a366b1907790497157f0b8349","isrc":"QZNJX2464674","name":"Sangre y Sentimiento","registered_at":"2026-06-08T17:43:23Z","spotify_id":"1NasZITQ5LpKLCbtkmKvlZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db18ff2d0e2f145cf1626631eff7d8b2e69087a366b1907790497157f0b8349. 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/1NasZITQ5LpKLCbtkmKvlZ.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/1NasZITQ5LpKLCbtkmKvlZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf39526fca0e7dd29c82f92880692f1bb67264eae452a41b19fee72d2f5a80e. 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/2hmH6KlT75igJkiisFxDr7.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/2hmH6KlT75igJkiisFxDr7.
{"copyright_id":"0xc84115d44cd989a4faf39bfed85bbb9b9d421dfd38bb66f3afd0990011fce126","isrc":"QZNJX2464677","name":"Para Hacerlo Hip Hop","registered_at":"2026-06-06T16:35:30Z","spotify_id":"3FqlLjWWMcsy2CFWztjcdF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84115d44cd989a4faf39bfed85bbb9b9d421dfd38bb66f3afd0990011fce126. 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/3FqlLjWWMcsy2CFWztjcdF.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/3FqlLjWWMcsy2CFWztjcdF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d6018afc266fc85cbfd131897f624a0fa7456f4ceda9ce4a42ed144f865f45. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:27:47Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1jhEPk4GSqkYlZqcT6xEbb.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/1jhEPk4GSqkYlZqcT6xEbb.
{"copyright_id":"0xfd18851942823a7524ca70e27d1abcc9b86577e63f8d2d8f80c5a9c8bf8a1e5e","isrc":"QZNJX2464679","name":"Detrás del Telón","registered_at":"2026-06-24T05:30:30Z","spotify_id":"0gGJdUyzVYT2S4nGEwL0Jl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd18851942823a7524ca70e27d1abcc9b86577e63f8d2d8f80c5a9c8bf8a1e5e. 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/0gGJdUyzVYT2S4nGEwL0Jl.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/0gGJdUyzVYT2S4nGEwL0Jl.
{"copyright_id":"0x8c35f37753a39a9e547c7a5d52375d18ea0d4698e26c810547b412c85c5ccedd","isrc":"QZNJX2464680","name":"El Infierno de Tu Amor","registered_at":"2026-06-10T17:11:13Z","spotify_id":"2clF4Mzw2IocxuevRt0AJY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35f37753a39a9e547c7a5d52375d18ea0d4698e26c810547b412c85c5ccedd. 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/2clF4Mzw2IocxuevRt0AJY.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/2clF4Mzw2IocxuevRt0AJY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6869012d439d13ecdd2ea7f45585977a85b3c9552096514e3754a0963163aecb. 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/2A4dRFcv1Foc0ENapM7UAT.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/2A4dRFcv1Foc0ENapM7UAT.
{"copyright_id":"0x1ea941c0f747fcc634c5fdd451139bee1bda40d76ff0b52239e89ee2b8fe903f","isrc":"QZNJX2464682","name":"Para Salvar Vidas","registered_at":"2026-06-08T02:14:44Z","spotify_id":"6vL82sT8JgMdEZIUr80SK1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea941c0f747fcc634c5fdd451139bee1bda40d76ff0b52239e89ee2b8fe903f. 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/6vL82sT8JgMdEZIUr80SK1.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/6vL82sT8JgMdEZIUr80SK1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9a40fb8dfcbe0c2d91ea67ed777c3d7cf95f8b21e62d3a987b7db361daad5d. 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/5TSN3AZto3G7VJzAWEM47E.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/5TSN3AZto3G7VJzAWEM47E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243b2b223fad18bbf436b2809306ba6b828ee2766187d23f0dd14158a1fe360d. 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/3RQIT9CnKFdnXraRp8lW12.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/3RQIT9CnKFdnXraRp8lW12.
{"copyright_id":"0x271e6c7e0d752903eccc2fce4241f0263a8388d7c501e15803e78eb930cf887c","isrc":"QZNJX2464686","name":"Camino por el Dc","registered_at":"2026-06-10T17:09:22Z","spotify_id":"3pkupzVq2BDSeDEBdjtVIf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271e6c7e0d752903eccc2fce4241f0263a8388d7c501e15803e78eb930cf887c. 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/3pkupzVq2BDSeDEBdjtVIf.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/3pkupzVq2BDSeDEBdjtVIf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807266f90681727b6cd1fd8c8f253383f9c1b3df2287072c4b1cef9efd475344. 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/15JgKOxz4kskwvTz1oG3gN.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/15JgKOxz4kskwvTz1oG3gN.