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 0xea3e876c98f542b403afa50d10ce73bd7a3fa16d7a82a499e3dd7abc28812cd9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bebcc8b-3bad-4147-95a6-7e703f272b28.json and https://artists.proofprofile.net/proofs/artist/4bebcc8b-3bad-4147-95a6-7e703f272b28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Šťastné Narozeniny, Pane Woody Woodpeckere
Beatova Sin Slavy / Koncert Sazka Arena 8.6.2006
Jo, ja se mam, ze je Olda pritel muj (Live)
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 0xf0d47695aabc2b3b763659ba8220ca04a579ad4800107df62d3f81a03df0abc2. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2CkDx0QBmetYc9RwMTvb9Q.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/2CkDx0QBmetYc9RwMTvb9Q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f405420065f1f1911f6a7d91e4f92838a1b15b08fd6dd09c9a0c1618021c6de. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4lxeMDo0gEOFVOLTMROIKl.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/4lxeMDo0gEOFVOLTMROIKl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888bd38f676abf4a179c91feb5897e4924829110b1b93259c1f36e43a2fb11aa. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2VEruCpmLtQewLGwaPjkHP.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/2VEruCpmLtQewLGwaPjkHP.
Odcházení (feat. Monika Načeva,Vlastimil Třešnák)
Odcházení (feat. Monika Načeva & Vlastimil Třešnák)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbee29d18b6c6c2a5aea71c8f693b0030a0c68b5707fc694de6e578ffffe3e6. 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/5SBIR9opQX6DKoZ9SarHAT.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/5SBIR9opQX6DKoZ9SarHAT.
Rajský trauermarš (feat. Eliška Dvořáková)
Jen ten, kdo zbloudí, najde cestu (feat. Richard Müller & Svetlana Rymarenko)
Zubatá - feat. Michael Kocáb, Jiří Hrubeš, Vilém Čok, Klaudius Kryšpín & Pražský výběr
Jó, já se mám, že je Olda přítel můj (feat. Pražský výběr)
{"copyright_id":"0x63eab569d64110efd6fdfffc6a6c14ce410d0869661f5088886dad76e93c0715","isrc":"CZD712200093","name":"Proč jen já (feat. Pražský výběr)","registered_at":"2026-06-27T11:26:07Z","spotify_id":"6Psn8ncgec9T37But16TGq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eab569d64110efd6fdfffc6a6c14ce410d0869661f5088886dad76e93c0715. 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/6Psn8ncgec9T37But16TGq.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/6Psn8ncgec9T37But16TGq.
Jeden den v parku u zlaté brány (feat. Andrej Seban)
Pán výtahů (feat. Věra Bílá, Pražský výběr)
Chvastoun (feat. Michael Kocáb, Jiří Hrubeš, Vilém Čok & Pražský výběr)
Člověk bez talentu (feat. Pražský výběr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ec7eeb9fdfc723f478e35840a89db2aee7949ef645bea7407f9718809a1019. 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/4hsBIIje5zm3SgPuWFgsom.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/4hsBIIje5zm3SgPuWFgsom.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291fa9d8420836b0a8196369a2eda0a5dd26e404038c02a8406ca2f8bd4ab378. 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/1RRmGH7sN3wBdk21Khzm63.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/1RRmGH7sN3wBdk21Khzm63.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d960a6d0aa736cadc30c8d380a67014a542b321f55d4c7795ddaa2c0252a91. 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/7tKDdwGHeVC2xMcLMw7jgc.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/7tKDdwGHeVC2xMcLMw7jgc.
Obrovský slunce (feat. Monika Načeva, Pavel Bořkovec Quartet)
Ach jó, já jsem línej (feat. Pražský výběr)
{"copyright_id":"0x1ee1daeaef636aa73891612eab0fa9fd14a0807a7c4f879be6bf5c5ea34e5781","isrc":"CZA161300719","name":"Ach jó, já jsem línej (feat. Pražský výběr)","registered_at":"2026-06-23T22:40:29Z","spotify_id":"6C4Z9rOQlB2R9XDRct0VRK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee1daeaef636aa73891612eab0fa9fd14a0807a7c4f879be6bf5c5ea34e5781. 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/6C4Z9rOQlB2R9XDRct0VRK.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/6C4Z9rOQlB2R9XDRct0VRK.
{"copyright_id":"0x0e63ebd3d07b842aa9ee7facd4d92eae6eb3907db78d5d5220d56374531f7660","isrc":"CZD712200095","name":"Reminiscence (feat. Pražský výběr)","registered_at":"2026-06-27T11:25:22Z","spotify_id":"1nGick9dA4PWiuyKR9NDbu","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e63ebd3d07b842aa9ee7facd4d92eae6eb3907db78d5d5220d56374531f7660. 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/1nGick9dA4PWiuyKR9NDbu.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/1nGick9dA4PWiuyKR9NDbu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415f1eec89e028215a65cb5ff5c0d16526fa3411abf5dbc3202cc3ce08f1b948. 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/5ZsnOj2JARWLxp8E7h9r0O.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/5ZsnOj2JARWLxp8E7h9r0O.
Říjen spí (Když se snáší déšť) [feat. BSP]
{"copyright_id":"0x62bd9fc1e6811c45da1f6726f29e42fbf1127f30b96f5e4a881e562d52d6f688","isrc":"CZD712200100","name":"Říjen spí (Když se snáší déšť) [feat. BSP]","registered_at":"2026-06-10T20:13:24Z","spotify_id":"6y4vtyQbsGb8LJh65B1OQw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bd9fc1e6811c45da1f6726f29e42fbf1127f30b96f5e4a881e562d52d6f688. 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/6y4vtyQbsGb8LJh65B1OQw.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/6y4vtyQbsGb8LJh65B1OQw.
{"copyright_id":"0xfd21e58ff8f511ce1eb14104fe683f333de8cd355892c4ded3cfae9f359e8aca","isrc":"CZA169400786","name":"Udržuj Svou Ledničku Plnou","registered_at":"2026-06-06T05:41:25Z","spotify_id":"0IUGC4cxx7w9h39mSlwLj0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd21e58ff8f511ce1eb14104fe683f333de8cd355892c4ded3cfae9f359e8aca. 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/0IUGC4cxx7w9h39mSlwLj0.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/0IUGC4cxx7w9h39mSlwLj0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b389655eadc8dc743a0773c330e09da452734d46e08b964f46837a7d6017c91. 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/7J3NI461sf3WC8m0iTDttn.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/7J3NI461sf3WC8m0iTDttn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01e3113980b641fe728e85f807613ad4727cce47995eaaab4a9ce1f41a0c355. 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/6kf1UCu4bSauUwxmFUGhV1.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/6kf1UCu4bSauUwxmFUGhV1.
{"copyright_id":"0x871b6a3a9127dab8c9427be4717ae197d8c3b24a279efc702ec779ad3aeafaef","isrc":"CZA160301394","name":"Nejlepší By Byla Růže","registered_at":"2026-06-22T06:38:18Z","spotify_id":"6dvVEn32dGv0ED7yO9BhwN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871b6a3a9127dab8c9427be4717ae197d8c3b24a279efc702ec779ad3aeafaef. 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/6dvVEn32dGv0ED7yO9BhwN.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/6dvVEn32dGv0ED7yO9BhwN.
{"copyright_id":"0x665a7a2b363bef410e67b34f2cffeb3f49d1556b9396170a3cd2ae2db055fcd8","isrc":"CZA160301398","name":"V Nočním Autobuse","registered_at":"2026-06-24T19:09:07Z","spotify_id":"0naUs0Loe3NDABs9sjQ08o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665a7a2b363bef410e67b34f2cffeb3f49d1556b9396170a3cd2ae2db055fcd8. 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/0naUs0Loe3NDABs9sjQ08o.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/0naUs0Loe3NDABs9sjQ08o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9553f4314c79b8cb2cfd605f5590cbcc13a24794321e9e2b5be5257aef89de0. 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/7HUZL3n8zsPfEtw6ukP5ik.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/7HUZL3n8zsPfEtw6ukP5ik.
{"copyright_id":"0x603070fc32df46cccfb27fbc6aaacc1d15062a5dc19c8ec6a3071dd6cf91deb1","isrc":"CZA160301401","name":"Jako Kočka","registered_at":"2026-06-24T18:58:49Z","spotify_id":"1LBARVHGFboLYWHIyR8I4b","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603070fc32df46cccfb27fbc6aaacc1d15062a5dc19c8ec6a3071dd6cf91deb1. 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/1LBARVHGFboLYWHIyR8I4b.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/1LBARVHGFboLYWHIyR8I4b.