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 0x4d29864d67283b73fdd5d0377456adb698c7e73eef86e6f0d390162fe33a0789. 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/ac55d6bc-33d9-4edb-9874-189eeb4510d8.json and https://artists.proofprofile.net/proofs/artist/ac55d6bc-33d9-4edb-9874-189eeb4510d8.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 0x5d8e6ba5a0c01304803060510e2ec1c32ab89fd8934b6eb64cb96064ae0042cd. 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/0f0SU60F9bZvriZwV1SefF.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/0f0SU60F9bZvriZwV1SefF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcee250cb955894a05bf8a022047b8c987f58f5450448e3f5c7161ed70404b6d. 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/65Zo2sxdsnulhiVSsE24QN.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/65Zo2sxdsnulhiVSsE24QN.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64086eb466d285a431cca19b6ee108115ea65fe06ed58ccb244b95507031cead. 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/3tZ0i7XOh2S6P7KRl4eXis.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/3tZ0i7XOh2S6P7KRl4eXis.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f9a5e30da2d0c1bc28e5a393c023289c41759dabc2e7e2a707978bbfbcca36. 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/4Rd7a0g8Tlx2A5gzMm90F8.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/4Rd7a0g8Tlx2A5gzMm90F8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4e6a050ea9a17e67fcfadfe3680627069030753278bcdf507e0158e7061ebd. 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/7iwRsEzkfIEEjPeKnviXBG.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/7iwRsEzkfIEEjPeKnviXBG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b765e52b136b4df79db8ab71469968b9cab3b26c9bb2d13e4957192bb5a239. 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/0Bao6Q7UWYpDZTdZNTxwLR.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/0Bao6Q7UWYpDZTdZNTxwLR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f42cba25a2bf8144820a13120ce08acfe0c0833f2ada0405c4595c9e730e245. 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/5MVwX4zvK3DYSvbIttec9T.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/5MVwX4zvK3DYSvbIttec9T.
{"copyright_id":"0x58535a93175beba0688440d3df0feba9e5e2e0fe6addf7c2c562e802be638dcd","isrc":"TCACM1643155","name":"O Lord My God","registered_at":"2026-06-27T18:56:29Z","spotify_id":"4axGSweooPpbQ3zM4sDoEd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58535a93175beba0688440d3df0feba9e5e2e0fe6addf7c2c562e802be638dcd. 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/4axGSweooPpbQ3zM4sDoEd.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/4axGSweooPpbQ3zM4sDoEd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd072fa3f68d3e42a56c841402bca4fe71299e8bdc1544b7a8f3879b467fa392. 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/38ho40CPVka2t8YiS1C3NJ.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/38ho40CPVka2t8YiS1C3NJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2011915dcc9e6af65ad8c96927c3ddeaf38013406a2d9ad2f280f705e042d38. 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/5sxKvF6Fkj8euDHtVxx7P8.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/5sxKvF6Fkj8euDHtVxx7P8.
{"copyright_id":"0x09bfb394b145c73a6bccc43a3891171d63bb48b64d3fb759fb5863a92b3d2107","isrc":"TCACM1634114","name":"Turn Me Around","registered_at":"2026-06-06T12:52:20Z","spotify_id":"1zZTUFvdGq9BXKApHblmeB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bfb394b145c73a6bccc43a3891171d63bb48b64d3fb759fb5863a92b3d2107. 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/1zZTUFvdGq9BXKApHblmeB.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/1zZTUFvdGq9BXKApHblmeB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1ec6ec658f3411e4bcacaa9c4f216ec61c0701468e7f620bd882893f8b03b4. 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/7I2m2MRnyKOsGKoIwQVnc4.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/7I2m2MRnyKOsGKoIwQVnc4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ac673b7c23e30987fba5f82deefe7f6157337f0960e2d29dcedd2f3df44729. 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/6i3jAV7s6MqsQlLBGbyvOA.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/6i3jAV7s6MqsQlLBGbyvOA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b963852e3c400bc062b20cffe94f164c300868e4cc83cec0da6fb62a32522cf. 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/2gt7wVhWPAe9lqldLoJXdI.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/2gt7wVhWPAe9lqldLoJXdI.
Contemporary Igbo Worship & Hymns, Pt. 2
Contemporary Igbo Worship & Hymns, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d27a2057c4dde248f19942371c5b05918b128cd4a8e6909824f5860529dc1d. 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/1hWY3Setkh0UGXZWoEJA0w.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/1hWY3Setkh0UGXZWoEJA0w.
{"copyright_id":"0x4c344bd7f80d340973a0f9a70b17d4f1c1ccb7ce3758e391f8ba96f0179816b2","isrc":"TCAGQ2220676","name":"Las Las God Will Always Win","registered_at":"2026-06-26T03:07:29Z","spotify_id":"2TkeMnT6xCnx5Jk2oTgOcT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c344bd7f80d340973a0f9a70b17d4f1c1ccb7ce3758e391f8ba96f0179816b2. 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/2TkeMnT6xCnx5Jk2oTgOcT.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/2TkeMnT6xCnx5Jk2oTgOcT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230bde1cde6d614ee7bc54be3d88663c11f33d003ef37716443b8634c8b56081. 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/3hZ7ENafBwo41O5D2mbb3c.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/3hZ7ENafBwo41O5D2mbb3c.
{"copyright_id":"0xc42954b5c6e219cd40f58a50f18d66e1eab54f0ea6f9fcdd7090103c4fa8feeb","isrc":"GBWUL2153364","name":"Great Is Thy Faithfullness","registered_at":"2026-06-18T04:22:41Z","spotify_id":"1yhG3eKzZTfaVhhpTjgz0X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42954b5c6e219cd40f58a50f18d66e1eab54f0ea6f9fcdd7090103c4fa8feeb. 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/1yhG3eKzZTfaVhhpTjgz0X.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/1yhG3eKzZTfaVhhpTjgz0X.
{"copyright_id":"0xe848adb76df64ec19e310ae344f3d8c923ea29e58f66fc3f74315d52a99e5bff","isrc":"TCAFJ2126347","name":"Victory Chant","registered_at":"2026-06-07T04:00:35Z","spotify_id":"5NVaZm3jsXN7F678HPbPtB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe848adb76df64ec19e310ae344f3d8c923ea29e58f66fc3f74315d52a99e5bff. 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/5NVaZm3jsXN7F678HPbPtB.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/5NVaZm3jsXN7F678HPbPtB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecb500324ba863b47893cf4cee1c2d5a339cd3480a9f88191910161bc261f4f. 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/4oaP5L5MMPyIjRKA7hr0ya.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/4oaP5L5MMPyIjRKA7hr0ya.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6973303d77453b9de96a5a09f9b9ab145d8d9b1b7d78e3461a3eeb8652b512. 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/7LOFZiFoaMtPvBOWXN9FLS.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/7LOFZiFoaMtPvBOWXN9FLS.
{"copyright_id":"0x0f30a760ee912c7fe45fd92e773c101355f98e61de10a07e09296903398edbcc","isrc":"TCADU1809794","name":"Alpha Omega","registered_at":"2026-06-09T11:47:32Z","spotify_id":"6tlmunfnpiAUPOBndtbzbl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f30a760ee912c7fe45fd92e773c101355f98e61de10a07e09296903398edbcc. 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/6tlmunfnpiAUPOBndtbzbl.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/6tlmunfnpiAUPOBndtbzbl.