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 0x9af322441a11b82b06c71f09f94d98de37643207219a79d67c026babafcebe89. 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/413f08b0-1401-4ba0-a790-eab2348837f1.json and https://artists.proofprofile.net/proofs/artist/413f08b0-1401-4ba0-a790-eab2348837f1.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 0x01c0665acf747c4529f40cf2abfe01f8b49d0c7f9618dc909c002e9232282cf4. 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/3ezSmuTqfOxBIIjxtKFEPS.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/3ezSmuTqfOxBIIjxtKFEPS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ff46456190f1d4dd3865a8527ccf400e4a069e01285c1c20af254546b12d43. 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/5FrMnp9uu2QDHvkYRykD5B.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/5FrMnp9uu2QDHvkYRykD5B.
{"copyright_id":"0xbbf7dc1849efa8c4c0519d51d4713e6dcebf3c8c037015ce599681c2db6d2f70","isrc":"SKB841201011","name":"Pivonapni (Toto Ťa Teší?)","registered_at":"2026-06-07T21:38:52Z","spotify_id":"2qpww5A8x1ooJiELwJJ643","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf7dc1849efa8c4c0519d51d4713e6dcebf3c8c037015ce599681c2db6d2f70. 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/2qpww5A8x1ooJiELwJJ643.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/2qpww5A8x1ooJiELwJJ643.
{"copyright_id":"0x1dcfd19bfff05e3e3bff4c7fa24f84a54d8579e081431cbe8ac62b717237236b","isrc":"SKB841201013","name":"Som Díler (Prepáč, Mami)","registered_at":"2026-06-21T08:38:00Z","spotify_id":"5uGBvafCMAsbky1qcsQLK3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcfd19bfff05e3e3bff4c7fa24f84a54d8579e081431cbe8ac62b717237236b. 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/5uGBvafCMAsbky1qcsQLK3.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/5uGBvafCMAsbky1qcsQLK3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a44f6437b6dde794393fa81f6568076955bcdc15907f997b1f5b2e7ea1fc8fc. 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/4PYnNndUIjebs2Q6f31C5Y.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/4PYnNndUIjebs2Q6f31C5Y.
{"copyright_id":"0x802d992f6dd38da2af131df4f377a1ead26bae9d5fcf42fbfc482efe600a4ce8","isrc":"SKB841501502","name":"Recept Na Úspech","registered_at":"2026-06-21T06:21:31Z","spotify_id":"4dZ0K8IonpMAqHqV0tp0un","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802d992f6dd38da2af131df4f377a1ead26bae9d5fcf42fbfc482efe600a4ce8. 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/4dZ0K8IonpMAqHqV0tp0un.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/4dZ0K8IonpMAqHqV0tp0un.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223995ab979989de98fc119dc329852f8d649a835acacdf1e9ce775761e50ee7. 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/6gX6wMWQTgkOPhZz63qt6R.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/6gX6wMWQTgkOPhZz63qt6R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b15a44dc992b48582885290bda5d047556a69cdc860c3b564adb9178fd1d4e9. 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/0RCdnyiTFPHjtwKGDkFCxF.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/0RCdnyiTFPHjtwKGDkFCxF.
{"copyright_id":"0xc4c72856af52468fa09b9ba31de4174eca43af912cde9cea520d6d8ddd5367ed","isrc":"SKB841501507","name":"Dva A Pol Chlapa","registered_at":"2026-06-27T08:46:57Z","spotify_id":"04J2zYR5MTvjfTTNxtcmll","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c72856af52468fa09b9ba31de4174eca43af912cde9cea520d6d8ddd5367ed. 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/04J2zYR5MTvjfTTNxtcmll.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/04J2zYR5MTvjfTTNxtcmll.
{"copyright_id":"0xa85f2dd1caef0bbc1bcffada70455d9b21c1f8ad64bf29a206242d125e14ae44","isrc":"SKB841501509","name":"Profi Hejter","registered_at":"2026-06-11T11:41:04Z","spotify_id":"6Jl2yx8BhEJFshumgwn13B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85f2dd1caef0bbc1bcffada70455d9b21c1f8ad64bf29a206242d125e14ae44. 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/6Jl2yx8BhEJFshumgwn13B.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/6Jl2yx8BhEJFshumgwn13B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a3f29c7bb8d2288b6d844e8c5acb04a4726d0456a9a7497c7f09ea3c148c1e. 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/7B2uzIdrHrRPRH0eWsDKOr.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/7B2uzIdrHrRPRH0eWsDKOr.
{"copyright_id":"0xa5e4111fa578aa87a0bfd14c61e1c62a94e4c2f3ae8edc7ac51771f8dccb59d3","isrc":"SKB841501511","name":"Potrebujem Čas","registered_at":"2026-06-09T09:05:49Z","spotify_id":"3cKNmfjuYSxl6dQhWgfsD0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e4111fa578aa87a0bfd14c61e1c62a94e4c2f3ae8edc7ac51771f8dccb59d3. 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/3cKNmfjuYSxl6dQhWgfsD0.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/3cKNmfjuYSxl6dQhWgfsD0.
{"copyright_id":"0xf4f0ab8befc707fda75f2ec005bc9f36d6239e96b96204fe57afa2acda3ea330","isrc":"SKB841501513","name":"Keď Odídem","registered_at":"2026-06-22T05:02:26Z","spotify_id":"2x2RAGgitLEhX9tgetAWYv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0ab8befc707fda75f2ec005bc9f36d6239e96b96204fe57afa2acda3ea330. 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/2x2RAGgitLEhX9tgetAWYv.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/2x2RAGgitLEhX9tgetAWYv.
Dva a Pol Chlapa (feat. Decko & DJ Metys)
Nesom Z Tejto Planéty (feat. Boy Wonder)
Prepáčte, že Ruším (feat. Prezident Lourajder)
{"copyright_id":"0xd7f65482f6480f4e41bcec4d846364c3254e5ace5e61d8b8ec46f01a7dc0aaae","isrc":"SKBC82100101","name":"Tono S.O.S.","registered_at":"2026-06-27T11:32:35Z","spotify_id":"4KLZRgFVQUJVYh38vwXoGn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f65482f6480f4e41bcec4d846364c3254e5ace5e61d8b8ec46f01a7dc0aaae. 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/4KLZRgFVQUJVYh38vwXoGn.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/4KLZRgFVQUJVYh38vwXoGn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c861151a51c41a50965c2a4b5ec5a8eb314e62979f64f58c9127b19bbc209ca. 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/0AzCZmBtmzILrv3uPC1aBg.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/0AzCZmBtmzILrv3uPC1aBg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53477b931b4ce598c7cd0c20e99df00a6869eb65cc4360f00e8ff981620cf602. 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/2cUBTHm34eXlDg9nSgceI1.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/2cUBTHm34eXlDg9nSgceI1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d3d08865d44a3bb3f8499579d98e2b93c605e942768c3709ae155606ad988b. 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/28aTmViluC6jiNV5WStzci.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/28aTmViluC6jiNV5WStzci.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adcd63a1b11f66744eac7e19349c8f261361f8a34c977254b52c4c4f6319e57. 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/69hAIjoqfUsJjYaxqNrNMq.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/69hAIjoqfUsJjYaxqNrNMq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586d5dac7b283bdf944a7edfc0c8fa4a1694357b5aeba35e4e6530f4dd70c4fa. 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/4fX6fHM0pEF8tS8SDy38iG.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/4fX6fHM0pEF8tS8SDy38iG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320152b280304a3dc285ebc82c87821c6ff525ff2f1391b9c46cfe9eaf667b46. 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/6j7vccog6FtgVSV8rTNTAR.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/6j7vccog6FtgVSV8rTNTAR.
{"copyright_id":"0x602c0eed37c5dc624589db3e57c1a40c2fd48df034dea8d928435e160f4ea5ce","isrc":"CZA232001330","name":"Premiéra (MCs Remix)","registered_at":"2026-06-05T21:47:28Z","spotify_id":"3K3nPWSev4hWS3gPQOWTNt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c0eed37c5dc624589db3e57c1a40c2fd48df034dea8d928435e160f4ea5ce. 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/3K3nPWSev4hWS3gPQOWTNt.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/3K3nPWSev4hWS3gPQOWTNt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972a10af1d2a6548613a9b7b638850a59efb88f38b3683d3231d5111b754e483. 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/3Z2Qte3SEluNOfgLKiPaLy.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/3Z2Qte3SEluNOfgLKiPaLy.
{"copyright_id":"0xc5bb7ff3f129eb2af1afc4a5f9cb2ab3a9eaec92444f292deb93078157148ece","isrc":"SKB841401438","name":"Jak Šéf","registered_at":"2026-06-18T15:44:23Z","spotify_id":"1mNEtTkD0tyikSNBnuKUmK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bb7ff3f129eb2af1afc4a5f9cb2ab3a9eaec92444f292deb93078157148ece. 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/1mNEtTkD0tyikSNBnuKUmK.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/1mNEtTkD0tyikSNBnuKUmK.