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 0xcb55bf79632a64f96789b34d6eb477a55036d3dd280845c9bffaad23f5803517. 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/d49d0092-4111-479d-9f92-0c945421230b.json and https://artists.proofprofile.net/proofs/artist/d49d0092-4111-479d-9f92-0c945421230b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x16cd9dfdf1bc3d06e9a85d882fa3085c5a924086f0219f5a4af3348a66840f41","isrc":"GBSMU7811959","name":"Blizgantys Naikai","registered_at":"2026-06-07T08:40:50Z","spotify_id":"3JEVZBtqX1vXmZziPKa7yc","type":"track"}
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 0x16cd9dfdf1bc3d06e9a85d882fa3085c5a924086f0219f5a4af3348a66840f41. 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/3JEVZBtqX1vXmZziPKa7yc.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/3JEVZBtqX1vXmZziPKa7yc.
{"copyright_id":"0x7af5a91d2db8e90e175640f353a3bfda7bdcb9b2f49c0a964cc2b2d1117d2574","isrc":"GBSMU7811960","name":"Mūsų Meilė (Remix)","registered_at":"2026-06-27T10:57:05Z","spotify_id":"69uWDtZsm6xOldRE912kLd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af5a91d2db8e90e175640f353a3bfda7bdcb9b2f49c0a964cc2b2d1117d2574. 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/69uWDtZsm6xOldRE912kLd.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/69uWDtZsm6xOldRE912kLd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa347cb43bf06505ad62d1398a3e118bc692a96e77018fc215b85a02b82202890. 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/1eq88vF6ke9NR0uztRQJL0.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/1eq88vF6ke9NR0uztRQJL0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f602a3934e33671042aa718aae3fa2bc3df50465614cc3cb3e661136ed8e2d. 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/5trRt6bStLLa9zIzMUvw8W.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/5trRt6bStLLa9zIzMUvw8W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5145aa5c461eb8fa8eef68c50b979991340dc865d9e0b49931afa9e29c517be. 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/0Y6qlS7vfMiDVzGDVTMM5G.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/0Y6qlS7vfMiDVzGDVTMM5G.
{"copyright_id":"0x24270ab5c9610a2ed4b8b06fe74a553da1d890e6395e55b5800d10d8ff8212af","isrc":"GBSMU7811964","name":"Nuo Nulio iki Mėnulio","registered_at":"2026-06-18T11:56:40Z","spotify_id":"6hScQRDoxCvhii4RVUcGgr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24270ab5c9610a2ed4b8b06fe74a553da1d890e6395e55b5800d10d8ff8212af. 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/6hScQRDoxCvhii4RVUcGgr.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/6hScQRDoxCvhii4RVUcGgr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87230acd619f940db4f31bfd01db076cdcb11f46588fe9302926ae4c8d556ba. 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/7xZiu0GTjqBaHfu7olr9kW.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/7xZiu0GTjqBaHfu7olr9kW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311bf32981af076de5d6d8351d9b377d6e7c0cdb07230417fd5ed7461f8a376a. 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/6vy3rIsZTn6dsbVcN1sSAu.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/6vy3rIsZTn6dsbVcN1sSAu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c95a54422581929270613909ecb956981069a6d0e88c5e4eeaa9678cb41982f. 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/6fcOlHg7fM0z673MPoMlnw.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/6fcOlHg7fM0z673MPoMlnw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc30cf5a54396d7f38f8966040fd0a8048e0165cd0e13d99f9856b221e96bb49. 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/6GKmsbvDeq3i9sJd1YvuE4.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/6GKmsbvDeq3i9sJd1YvuE4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a42e72dcc1b6f11d4fb69429529006f9a384d6fe53f17c799d92a71e02a086. 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/5Jae7p0wsiMi2K7gymSNQw.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/5Jae7p0wsiMi2K7gymSNQw.
Blizgantys Naikai (Nexus Beat x Fedde Remix)
{"copyright_id":"0x8beaf29a2b32f5b79ea61439781885985a8bfd1d78aec42fc078d72cfaf2acf9","isrc":"QZTBB2331542","name":"Ašaros kris","registered_at":"2026-06-10T22:42:38Z","spotify_id":"4SAQ9WDQwQRQwPGkOnpP79","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8beaf29a2b32f5b79ea61439781885985a8bfd1d78aec42fc078d72cfaf2acf9. 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/4SAQ9WDQwQRQwPGkOnpP79.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/4SAQ9WDQwQRQwPGkOnpP79.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae65312f56c9ce4d9ccff199ae92dcd3390247c9e5b3e949c066973d98cf7e42. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2fukxfqAy0335HazttB1n5.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/2fukxfqAy0335HazttB1n5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03689427bdbb4d1d52ce92751d0f13f0d2c963f55f51ab52553329ebf855161b. 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/0M9VETVhNJiNqigtkJrVj1.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/0M9VETVhNJiNqigtkJrVj1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae65312f56c9ce4d9ccff199ae92dcd3390247c9e5b3e949c066973d98cf7e42. 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/70lJskPV97GehGyAXRTgwE.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/70lJskPV97GehGyAXRTgwE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5939b6c016f208d2585e4b8dd0b5a875ad3a54b70f321db00c1e290f0ff4463a. 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/0exEbXDEj7pzkftFpeOvvq.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/0exEbXDEj7pzkftFpeOvvq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05b8dbd8c83014ad95ec21c67654442dd529e71fe93f36f25837b267c696916. 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/7llIIGUWaE69kebXAnkBIj.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/7llIIGUWaE69kebXAnkBIj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372ed7828d62089411371db25110752f7f3ee07e6d542ad37f73e62151b02e36. 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/2UBPbCozaXJypninoUjERZ.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/2UBPbCozaXJypninoUjERZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2c68d0d96bd48e3468c006f067757fd0566c44dd064e35f455ee0764a7b02c. 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/3v1kWIwdjUO1kt5oVTtvur.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/3v1kWIwdjUO1kt5oVTtvur.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50e941a5d9e0de5b4a1460b9961637ae234814c49fb5f7c6bfb143b70e75b47. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0OytiErhhZdNtHSFqUHrRM.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/0OytiErhhZdNtHSFqUHrRM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed6c4e57c7ab81e55fcbdb32303df52ee922bf62929f284e1488433a392138d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0At1n52fJ5xgobPmILp2c7.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/0At1n52fJ5xgobPmILp2c7.
{"copyright_id":"0x22784cbf7019ed4eac8b08f0488cfe80a2e08eacdecd91d1bce8c7fefa575c55","isrc":"LTM892500007","name":"Ką turiu","registered_at":"2026-06-09T04:18:31Z","spotify_id":"4J22VjE1wSQyxB8Md9X5xh","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22784cbf7019ed4eac8b08f0488cfe80a2e08eacdecd91d1bce8c7fefa575c55. 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/4J22VjE1wSQyxB8Md9X5xh.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/4J22VjE1wSQyxB8Md9X5xh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54479f89c3c246a7a169a7cd6576070f55bca63ff14e7ea1872a08f2218dca5f. 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/75x4dvnCx78oYptpxEOong.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/75x4dvnCx78oYptpxEOong.
{"copyright_id":"0xa2e13fb8d1d89a9f419ef0c04b309bbbd44e81575059bb5d2113a6bb6c950ffe","isrc":"GB8KE2510110","name":"Pasakyk Man","registered_at":"2026-06-06T08:17:30Z","spotify_id":"3xayGABryvAFINVGeFr2X5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e13fb8d1d89a9f419ef0c04b309bbbd44e81575059bb5d2113a6bb6c950ffe. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3xayGABryvAFINVGeFr2X5.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/3xayGABryvAFINVGeFr2X5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf673b180d7c0b5a576253ab6a5dc2ce5e8bd1a22ce6943b8feca2ca069accc0. 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/6Y8IfMp5nrW1DQqGaReH2o.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/6Y8IfMp5nrW1DQqGaReH2o.
{"copyright_id":"0xf197bd967cce797b062923cbe136fecfab5eae670581763a7f022ba76bfb8ee6","isrc":"DGA0L2370348","name":"Ar dar mane sapnuoji? - Remix","registered_at":"2026-06-07T16:04:29Z","spotify_id":"4Wi0NqgGGLeDzwc112RG0B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf197bd967cce797b062923cbe136fecfab5eae670581763a7f022ba76bfb8ee6. 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/4Wi0NqgGGLeDzwc112RG0B.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/4Wi0NqgGGLeDzwc112RG0B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54479f89c3c246a7a169a7cd6576070f55bca63ff14e7ea1872a08f2218dca5f. 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/0U58zG6GKjqFilP8IUL0a6.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/0U58zG6GKjqFilP8IUL0a6.
{"copyright_id":"0xfa6088fd0b3163b7bf6c1e7a2a1f61f2d8e896d6b0ef0289e0216d6905dca413","isrc":"LTM892300002","name":"Ašaros kris","registered_at":"2026-06-08T06:24:31Z","spotify_id":"2SrEYIWZYjiY7EdCnyBqwt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6088fd0b3163b7bf6c1e7a2a1f61f2d8e896d6b0ef0289e0216d6905dca413. 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/2SrEYIWZYjiY7EdCnyBqwt.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/2SrEYIWZYjiY7EdCnyBqwt.