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 0x6eadb35d7c7d3921ad0a505ec7e553c64d894dc70bec7b440119a035a1c8afe4. 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/ed24c780-d2ec-42a3-bd7b-6791bd55aca2.json and https://artists.proofprofile.net/proofs/artist/ed24c780-d2ec-42a3-bd7b-6791bd55aca2.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 0x4b9715b5334c0df98edd1eb9b7ebaee8fe839a6d0dcd1a4d26f0938dcfe04202. 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/763IqJvvyESUNp8SbibCKm.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/763IqJvvyESUNp8SbibCKm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf01c7aa1a22b971e06c9c33570a3c7caa818c85e1992335d214a5760e51146. 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/6tReAQuqsEK1sO2Nh8bMI0.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/6tReAQuqsEK1sO2Nh8bMI0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e45f8b6a9ee122a522ad73737acc4e35ceaa493182c240e91851c62a44a581. 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/3UrT8t9CeS1AzTzKBUDgfG.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/3UrT8t9CeS1AzTzKBUDgfG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c8dd106180673ba3734de169508c2752d604bc0e50d4144b260750491cbf94. 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/0W7ezVBrwNGmqnyRtGLkZV.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/0W7ezVBrwNGmqnyRtGLkZV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470dca0fe77d9116e52518f124e47e5742a85b224a6615b40994786f0845558c. 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/0vPsoiQ7u14P7cihJJuV0Z.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/0vPsoiQ7u14P7cihJJuV0Z.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0149e684f594c06859bd32ea01865bfb741cc205d268582b956c47a718088a41. 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/7igsUaqsLUsBLDa7ENUSis.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/7igsUaqsLUsBLDa7ENUSis.
{"copyright_id":"0x3fb5f0e78220ee2bff8c8cf2ef291f8efa8c6e25d867bcef146ab9f177fb33f1","isrc":"ARA821600483","name":"Besame Mucho","registered_at":"2026-06-09T22:09:16Z","spotify_id":"298698SrUIxLDuArMuVMSq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb5f0e78220ee2bff8c8cf2ef291f8efa8c6e25d867bcef146ab9f177fb33f1. 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/298698SrUIxLDuArMuVMSq.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/298698SrUIxLDuArMuVMSq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8cb97416cc5fdbb8849d2226e1e9eb9d4025e9e872b14f4a3e6db669db64bc. 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/4SzClmbqhEiWAbowtlyZAL.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/4SzClmbqhEiWAbowtlyZAL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a275140c82754d874a00bf4ea794604d97aa7b3d9171caf5728ffb5c51eee23. 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/2eQpcqVGITwGC8cnVmRJEF.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/2eQpcqVGITwGC8cnVmRJEF.
{"copyright_id":"0x99d5845e1de164ebc2d0ba8ba22becdb161fe7a5f7739977400298c2d7dd10ed","isrc":"DEXO52461136","name":"Aquellos Ojos Verdes","registered_at":"2026-06-04T15:18:21Z","spotify_id":"5BX4AdHRh93uU4u4AstnCg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d5845e1de164ebc2d0ba8ba22becdb161fe7a5f7739977400298c2d7dd10ed. 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/5BX4AdHRh93uU4u4AstnCg.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/5BX4AdHRh93uU4u4AstnCg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6bb21cb0154fb16ecaa2186b756c041242afe3a16185d92286a475346346d9. 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/5UUaW80hjEtd3Prj6AvVB7.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/5UUaW80hjEtd3Prj6AvVB7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218224d55bd6a246c6568ff4975fd351560aa6e9028760dd69233387e544fd08. 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/3PA5P288aT6JLGwQPAun61.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/3PA5P288aT6JLGwQPAun61.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd881904fc56b8d5fc7c318689a3fe253a98ac845f43d60ef0e49f197ff10728b. 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/2XpOyKv1fCyvkCNKcsIr2x.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/2XpOyKv1fCyvkCNKcsIr2x.
{"copyright_id":"0xf8d789a13631c448c0b75de91b8adca04413bb124fbc69a920d814ac2226a2fd","isrc":"DEXO52461140","name":"Es Pecado Mentir","registered_at":"2026-06-18T07:53:17Z","spotify_id":"0kXPeaK9ATJ1wFw1rekRY2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d789a13631c448c0b75de91b8adca04413bb124fbc69a920d814ac2226a2fd. 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/0kXPeaK9ATJ1wFw1rekRY2.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/0kXPeaK9ATJ1wFw1rekRY2.
{"copyright_id":"0x235baff2e3c9e5e2e18c4ce9ba30a730d9be5d089e3582e8958b09615d1a63b5","isrc":"DEXO52461141","name":"Sigamos Pecando","registered_at":"2026-06-05T18:56:33Z","spotify_id":"6mDpqjV1uBuVfJv70kVEVn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235baff2e3c9e5e2e18c4ce9ba30a730d9be5d089e3582e8958b09615d1a63b5. 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/6mDpqjV1uBuVfJv70kVEVn.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/6mDpqjV1uBuVfJv70kVEVn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2415324c7400f975ea7058878dba3e1819a30579f2aaaee7c93d591895284e. 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/7xSb2FuySIpL6KK6P4sZ5d.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/7xSb2FuySIpL6KK6P4sZ5d.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c1652b6f2bf84c8a9e07b3865d54ee69aee1dfab45cded41ec66b665e30542. 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/7fxkYuhGp69c0CqYH0Fnqe.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/7fxkYuhGp69c0CqYH0Fnqe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33cfa670c0cc03f26c60e9855c22686130e3134b9ec34525c08a01f8ab4b7d4. 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/68Y5TBSYKgdeiKe7r7WDCG.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/68Y5TBSYKgdeiKe7r7WDCG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8c08ba6435ebab5999a45b166916b69d4a5749ce7934d57f2807d45606612b. 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/2crDWKXfqeC2XJwUShvBrJ.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/2crDWKXfqeC2XJwUShvBrJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe964f83e7b588f59556a2046911848e2869b766a8215a95e29a64946b51f4e. 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/49rpY9bQwgRhOyKdCClFh0.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/49rpY9bQwgRhOyKdCClFh0.
{"copyright_id":"0x280b0ec6524be5ec5a27fc48fada06d8d92d00d576c414fd8cf9425eadd17629","isrc":"DEXO52461151","name":"Solamente una Vez","registered_at":"2026-06-06T20:19:28Z","spotify_id":"1hr4Y2oX905uNvkHXJVjws","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280b0ec6524be5ec5a27fc48fada06d8d92d00d576c414fd8cf9425eadd17629. 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/1hr4Y2oX905uNvkHXJVjws.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/1hr4Y2oX905uNvkHXJVjws.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587ecabf6485220d0f6fa6519450545628dd5871971d24b92213913ce641b5e7. 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/7FCnxXqB4u27jj1uSFqIJf.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/7FCnxXqB4u27jj1uSFqIJf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a8bb3b4b604c166e1f2e9759449635353e941d1e86aa5393d4213881d825bc. 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/7EGZbG2rTvRdXA1ZLStISq.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/7EGZbG2rTvRdXA1ZLStISq.
{"copyright_id":"0xe485377962e0cef11e4460676b63e4f6701d6b3f9c2f4c491284f7ef60be5ef8","isrc":"DEXO52461154","name":"La Chica Más Hermosa del Mundo","registered_at":"2026-06-21T16:52:07Z","spotify_id":"0S89YFiDR3yPbu4dyzGERc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe485377962e0cef11e4460676b63e4f6701d6b3f9c2f4c491284f7ef60be5ef8. 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/0S89YFiDR3yPbu4dyzGERc.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/0S89YFiDR3yPbu4dyzGERc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664da5dc52606c4f988ac223b1b0457d0a4b0ea1dc8b7e7950959fb1ed3e6c0c. 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/53vOwsnzNIDvj5I3ROWkyu.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/53vOwsnzNIDvj5I3ROWkyu.
{"copyright_id":"0xfe43b180c02da1fceada718f8b76886f90b3326342eb22f895ab085594f8e194","isrc":"DEXO52461158","name":"Acercate Más","registered_at":"2026-06-09T12:20:06Z","spotify_id":"3FkBWD3MOTeOAoDMBjgUPt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe43b180c02da1fceada718f8b76886f90b3326342eb22f895ab085594f8e194. 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/3FkBWD3MOTeOAoDMBjgUPt.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/3FkBWD3MOTeOAoDMBjgUPt.
{"copyright_id":"0x2fb8ccb090caa4788300d215ae5bcf0d6b046a3d56d08ee3d981f59557fa61d7","isrc":"DEUE22382158","name":"Sigamos Pecando","registered_at":"2026-06-23T23:05:02Z","spotify_id":"2zPJiZNdo5TqajLpZmpu1A","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb8ccb090caa4788300d215ae5bcf0d6b046a3d56d08ee3d981f59557fa61d7. 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/2zPJiZNdo5TqajLpZmpu1A.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/2zPJiZNdo5TqajLpZmpu1A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2205cfd75f3d6c050b71148f8d522f706f98983739d29bbb6f72416af3a0557b. 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/45h01olXwKI9gCq3Antw1A.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/45h01olXwKI9gCq3Antw1A.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece304c5d7108bc3898ea72f6c504ac2061237956baa3e98af51893f9bd5472b. 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/2n7RXcI6VqczBWfLdl4bRj.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/2n7RXcI6VqczBWfLdl4bRj.