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 0xe3321fbb0ab8f816bbf7cdf8447f2e2b9c41416a082a5bde12bfcab8d0ca6918. 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/40fe2c55-7b98-4e26-af60-3b26cfe7d2a8.json and https://artists.proofprofile.net/proofs/artist/40fe2c55-7b98-4e26-af60-3b26cfe7d2a8.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 0x83f4741f22445d3702ae0e6d4b9461e9585ffec7eae2012d8d7260ac5a489693. 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/7FcSZOqpzFtoJLRwyH5M9C.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/7FcSZOqpzFtoJLRwyH5M9C.
{"copyright_id":"0xf8b3c724a18563dde8af3d18b8a3a654ed42e1610c397585c27d287cd8bee074","isrc":"MXF366409739","name":"Tampico Hermoso","registered_at":"2026-06-06T01:42:45Z","spotify_id":"52hwfpSUuFEpUoyvsA8zVk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b3c724a18563dde8af3d18b8a3a654ed42e1610c397585c27d287cd8bee074. 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/52hwfpSUuFEpUoyvsA8zVk.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/52hwfpSUuFEpUoyvsA8zVk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e92bc8353b1d74e24658820a592c17382392a73d71011af4410b70f84f90f7. 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/4idm6vPh4RYiHe36jhiENb.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/4idm6vPh4RYiHe36jhiENb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff2f2957605d2603c0303aa94b8193088dbb9565ba2388f40e752cbfd92d434. 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/7jAcQYuFTmnacyHZQiqVnU.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/7jAcQYuFTmnacyHZQiqVnU.
{"copyright_id":"0xea0a89c259a70a39e63b4e7c41ba0e612d7089ab220071b3a14cfd368cdc56bd","isrc":"MXF366207943","name":"Estrellita Marinera","registered_at":"2026-06-07T01:43:34Z","spotify_id":"4FkZIUrRJem6P7B6ClS13G","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0a89c259a70a39e63b4e7c41ba0e612d7089ab220071b3a14cfd368cdc56bd. 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/4FkZIUrRJem6P7B6ClS13G.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/4FkZIUrRJem6P7B6ClS13G.
{"copyright_id":"0xf1c2d35c1cc254e792932d3ddf9c72aaae342529ad04b4cb8b4a269dabdeaddc","isrc":"MXF366813584","name":"Ya Viene Amaneciendo","registered_at":"2026-06-04T07:19:17Z","spotify_id":"7mSAko5rYKEaU3jaeAk4ZG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c2d35c1cc254e792932d3ddf9c72aaae342529ad04b4cb8b4a269dabdeaddc. 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/7mSAko5rYKEaU3jaeAk4ZG.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/7mSAko5rYKEaU3jaeAk4ZG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09e6171e3f47c1fc701906d1152b163fffc71b6ce6254c53b38bf85a31ae0f1. 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/5JNNjvunaFiUT56W8GRs80.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/5JNNjvunaFiUT56W8GRs80.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9499a618d081158262043f8401a0994869b7e27eeb4822b11b1cf956b3b4ed8. 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/6qqSF14AW9H2MKihGnZyc5.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/6qqSF14AW9H2MKihGnZyc5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c73b845fffaf2449c9b2f273930d954975743fc7615705ed8e61548d39d4a7. 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/3g15oR92SPI6oonAGKqzuc.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/3g15oR92SPI6oonAGKqzuc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc196a470dbe43eb00d23d8f2ab0e8b6ec8a0f6bab02707051470ac7b6e77c1f7. 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/3a5nebjsGnYeVXa9wzeBn3.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/3a5nebjsGnYeVXa9wzeBn3.
{"copyright_id":"0x01d1eceb2dda3a6260abc9fc5f0e8736b60b542a8a2eeb2d591d5b0df8cba2b3","isrc":"MXF366409777","name":"No Volveré","registered_at":"2026-06-04T14:38:08Z","spotify_id":"0nCtCpqiRX3WXD28jnZ4tr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d1eceb2dda3a6260abc9fc5f0e8736b60b542a8a2eeb2d591d5b0df8cba2b3. 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/0nCtCpqiRX3WXD28jnZ4tr.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/0nCtCpqiRX3WXD28jnZ4tr.
{"copyright_id":"0x937ac428d23c49d1c840f1bb9f256a1b0d978ae6dbbec76d48f0cbdeb09ff0d7","isrc":"MXF367319129","name":"La Rica Pobre","registered_at":"2026-06-04T15:37:50Z","spotify_id":"7aodxkOFzi757GkdeaGKzz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937ac428d23c49d1c840f1bb9f256a1b0d978ae6dbbec76d48f0cbdeb09ff0d7. 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/7aodxkOFzi757GkdeaGKzz.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/7aodxkOFzi757GkdeaGKzz.
{"copyright_id":"0x25fa21a560d358a3b7a51b199002ba0e51d8c4d36a4568711d839dfb8cc4796f","isrc":"MXF367116628","name":"Noviando En Lo Obscurito","registered_at":"2026-06-07T08:12:18Z","spotify_id":"25txvHdsR5hfgHIxR6KWph","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fa21a560d358a3b7a51b199002ba0e51d8c4d36a4568711d839dfb8cc4796f. 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/25txvHdsR5hfgHIxR6KWph.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/25txvHdsR5hfgHIxR6KWph.
{"copyright_id":"0xd0b320eb6939cb484c88d067e6637b8df1cb348912ced2e5d5c6e139acd64196","isrc":"MXF366006318","name":"El Dicharachero","registered_at":"2026-06-04T11:27:53Z","spotify_id":"5nOSFNSuftuAAt5cAVfsAa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b320eb6939cb484c88d067e6637b8df1cb348912ced2e5d5c6e139acd64196. 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/5nOSFNSuftuAAt5cAVfsAa.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/5nOSFNSuftuAAt5cAVfsAa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5707a8be8f43964ea1d7dc39f32218c295bd0be6a1810c901c2c46e4d337b84. 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/6pMOQCVMyHPo7TgL0Rv0vA.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/6pMOQCVMyHPo7TgL0Rv0vA.
{"copyright_id":"0xa9316f0cf1b32aaff167eb27c2c0ffcf982dffc73ec87b4fcb0f1233670ecd81","isrc":"MXF368025730","name":"Viva Mexico","registered_at":"2026-06-07T01:50:41Z","spotify_id":"6v6FAme3KtLO1wEh5abAzi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9316f0cf1b32aaff167eb27c2c0ffcf982dffc73ec87b4fcb0f1233670ecd81. 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/6v6FAme3KtLO1wEh5abAzi.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/6v6FAme3KtLO1wEh5abAzi.
{"copyright_id":"0x52e9269a5cf3c4db02a2089a56576ab35151f6e0f61b68a9adf2c1620ede797f","isrc":"MXF368025737","name":"Que Lindo Es Michoacan","registered_at":"2026-06-07T01:49:37Z","spotify_id":"6hD3rxXYjOONoMh4Ox1oz5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e9269a5cf3c4db02a2089a56576ab35151f6e0f61b68a9adf2c1620ede797f. 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/6hD3rxXYjOONoMh4Ox1oz5.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/6hD3rxXYjOONoMh4Ox1oz5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5707a8be8f43964ea1d7dc39f32218c295bd0be6a1810c901c2c46e4d337b84. 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/1zVASJ1ky0lo0dxAF3scpV.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/1zVASJ1ky0lo0dxAF3scpV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f4741f22445d3702ae0e6d4b9461e9585ffec7eae2012d8d7260ac5a489693. 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/7Ibuk3bPaKISvEItITmjph.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/7Ibuk3bPaKISvEItITmjph.