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 0x7039dabc903a9435b3573541be6c0f4e085cc994754e9e53e555aacac59d26de. 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/96d13474-aacc-4a4d-b8be-541b5a8805b4.json and https://artists.proofprofile.net/proofs/artist/96d13474-aacc-4a4d-b8be-541b5a8805b4.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 0xdb8b4f857ba698669e0c1d9caa6706d113661f289b01cd4bda93f053aa8ba1be. 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/5WGSPffBuLw4AIDsn17B0h.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/5WGSPffBuLw4AIDsn17B0h.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e16ddd3e0c08f12786967ebe7ef2695ead9f31c542266602c04f113d0dd1185. 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/6gAEA605iVQt0d4Rzw6zab.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/6gAEA605iVQt0d4Rzw6zab.
{"copyright_id":"0xb2ebd4e491170c7418b6ef971be7ef9e3cff9197752a641eb510d45ca0ebfc98","isrc":"BKF5C2400001","name":"THE BOX MEDLEY 7","registered_at":"2026-06-04T14:57:07Z","spotify_id":"2UiNcKrl7fbTClesb1ppom","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ebd4e491170c7418b6ef971be7ef9e3cff9197752a641eb510d45ca0ebfc98. 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/2UiNcKrl7fbTClesb1ppom.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/2UiNcKrl7fbTClesb1ppom.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02d598bbe4ffe01466bfd2759b3a51b4b0938084c3e7a0cbba1fa3bfe4f0b8. 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/3Her2cB13gyvJDqCQyxFuV.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/3Her2cB13gyvJDqCQyxFuV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fdbd6728847973bbd377ae1fbc27ec6dcaa3406f232a09c443606148b0ed39. 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/40vhomegIKdyF7YfUMMhkD.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/40vhomegIKdyF7YfUMMhkD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0126e684383601569a0dcaf8d7cb14520b1606ffcc721f84853c5b0c17ba133. 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/2nnPf8jR05dh9wN0m61IO9.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/2nnPf8jR05dh9wN0m61IO9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8485b957ba2a65a131faab4ab580e3752c236c7c16a37fda54f77b62cb54b5b6. 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/3hNj3wMo45tUBs5TH2LxJL.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/3hNj3wMo45tUBs5TH2LxJL.
{"copyright_id":"0xd0b11c5419f9fcde7a89846f784ef74f59bccd2d0a3c12dd6f727d54c5163155","isrc":"US7VG2433048","name":"2K24 Vem na Minha","registered_at":"2026-06-05T12:53:13Z","spotify_id":"5BllxyeTJfLUFokBgHBW0D","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b11c5419f9fcde7a89846f784ef74f59bccd2d0a3c12dd6f727d54c5163155. 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/5BllxyeTJfLUFokBgHBW0D.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/5BllxyeTJfLUFokBgHBW0D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97c6a02222464de1374f0baed42e3f654998f5e90859cd25c560f749989d174. 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/5ZJNmm1pmFEBcxKFnuHt3L.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/5ZJNmm1pmFEBcxKFnuHt3L.
{"copyright_id":"0x55b69cf7600432abcd48c361031a08b096d779b52eb6bcd01fdbb0b4bbd9f074","isrc":"QZMZ92407579","name":"Zé Povinho Vigia","registered_at":"2026-06-10T01:07:06Z","spotify_id":"4FH8DAvwLnYMwW92aCqEKv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b69cf7600432abcd48c361031a08b096d779b52eb6bcd01fdbb0b4bbd9f074. 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/4FH8DAvwLnYMwW92aCqEKv.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/4FH8DAvwLnYMwW92aCqEKv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178c99a089bf76b02ac58868335ad687993959e68aad074bd498c03becca8f2. 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/316XYVjuFpOGZDCV5GR4S9.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/316XYVjuFpOGZDCV5GR4S9.
{"copyright_id":"0xb02e02717b26c2213cf708a678092ee02af634b7e7aecc4f94fbc87ea0e7452c","isrc":"QZMZ92407581","name":"Foda-Se o Cancelamento","registered_at":"2026-06-10T20:52:38Z","spotify_id":"0AcdxjPUFY9jWcvadw8Ipj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02e02717b26c2213cf708a678092ee02af634b7e7aecc4f94fbc87ea0e7452c. 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/0AcdxjPUFY9jWcvadw8Ipj.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/0AcdxjPUFY9jWcvadw8Ipj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780d9b89aa18e8803e0c5084d9c556999454a26812452f1444b1b312377a169c. 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/13sg8B9nGqcWxa2gEWe6X2.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/13sg8B9nGqcWxa2gEWe6X2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243afedf7e49630b0b11431b1b22b6c2866248e19475c1a05a32f765d4a2c464. 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/36AfymBFOsILpDjabasNo3.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/36AfymBFOsILpDjabasNo3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0855f68ca6189521f7f97769e236b0c7094efc7a492c523075579c4e3e8db2f. 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/6CoHS4T6KLUi7F9ggNoNGi.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/6CoHS4T6KLUi7F9ggNoNGi.