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 0x896e7d76d06f3e653b7ddb2181fa5de17e83373876df66602101675963a8183a. 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/db1944a8-485f-44cc-9adf-7c2619fd2978.json and https://artists.proofprofile.net/proofs/artist/db1944a8-485f-44cc-9adf-7c2619fd2978.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lenka - Live Nahrávka Plavci Na Poříčí 1978
Parodie: Což Takhle Dát Si Špenát - Live
Františka A Jeník - Live Nahrávka Plavci Na Poříčí 1978
Můj Pes Suverén - Live Nahrávka Plavci Na Poříčí 1978
S Námahou - Live Nahrávka Plavci Na Poříčí 1978
Někdy Ty, Někdy Já - Live Nahrávka Plavci Na Poříčí 1978
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 0xc403d25d7f7e52d51c584d3dbf38e9805f91c6a285c4a7dbdb062ccd5c63dc47. 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/1PcvsL7dzwLd3QVo3MyXkT.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/1PcvsL7dzwLd3QVo3MyXkT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67667d84fe320948ba648a31f6ae2d004ece2e5b6ad21f905a8948f37d8f3729. 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/3sMtnE05TpZkaQX0qCQgbd.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/3sMtnE05TpZkaQX0qCQgbd.
{"copyright_id":"0xf104d15e5b705ffc51a457fa00f3c1c58c7f1c3a6139c33e532db961320b328d","isrc":"CZA167200402","name":"Láska Je Věc Kouzelná","registered_at":"2026-06-11T13:31:46Z","spotify_id":"4FBU2Iwr1IsdgqMdAtHatt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf104d15e5b705ffc51a457fa00f3c1c58c7f1c3a6139c33e532db961320b328d. 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/4FBU2Iwr1IsdgqMdAtHatt.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/4FBU2Iwr1IsdgqMdAtHatt.
Úvod - Live Nahrávky Plavci Na Poříčí 1978
Úvod - Live Nahrávka Rangers Country Saloon 1994
Zlámaná Růže - Ive Nahrávka Rangers Country Saloon 1994
Reminiscence Na Rok 1969 - Petr Nárožný Vzpomíná - Live Nahrávka Rangers Country Saloon 1994
Směs - Live Nahrávka Rangers Country Saloon 1994
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e785c228dc72d30352397449d9a53cdb89df00a577af91b975019220f7833e2. 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/1GIHnyaboHhyWfyyLTFD33.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/1GIHnyaboHhyWfyyLTFD33.
Ta zem je tva zem (This Land Is Your Land)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cb69dc4a126d62d3de3daa974914b273105dcf11482211429b3b83d5313818. 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/6t0vwvUZqbrtSyWvEM7dB9.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/6t0vwvUZqbrtSyWvEM7dB9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e89d742c6db6705eaf9e74243ff90c8fa9066192e80063b8f00ec6e9e948cb8. 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/07kBgr6n91mGVTpYCAkflz.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/07kBgr6n91mGVTpYCAkflz.
Mam radost (A take A Lot Of Pride In What I Am)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7272fee29d909e11eee3e2c1f3d472b777fc9b2fd23e32b641a174071d3826. 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/1BX0XwENJ6iXfFX5XpPNfU.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/1BX0XwENJ6iXfFX5XpPNfU.
Laska je vec kouzelna (Live Is Kind, Love Is Wine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67667d84fe320948ba648a31f6ae2d004ece2e5b6ad21f905a8948f37d8f3729. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5woyN5rqTmAjshOJfr7e5r.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/5woyN5rqTmAjshOJfr7e5r.
{"copyright_id":"0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604","isrc":"CZA166900468","name":"Balíček Karet","registered_at":"2026-06-08T08:06:15Z","spotify_id":"71Zsm7RUWQrAkseka1lTV7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/71Zsm7RUWQrAkseka1lTV7.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/71Zsm7RUWQrAkseka1lTV7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf104d15e5b705ffc51a457fa00f3c1c58c7f1c3a6139c33e532db961320b328d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6coz4SS7oWiOZaIMP51bYc.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/6coz4SS7oWiOZaIMP51bYc.
Úvod Live Nahrávky Plavci Na Poříčí 1978 - Live
Lenka / Live Nahrávka Plavci Na Poříčí 1978/ - Live
S Námahou / Live Nahrávka Plavci Na Poříčí 1978/ - Live
Františka A Jeník / Live Nahrávka Plavci Na Poříčí 1978/ - Live
Můj Pes Suverén / Live Nahrávka Plavci Na Poříčí 1978/ - Live
Vstup Petr Nárožný - Rozjímání Nad Probouzejícím Se Dnem - Live
Vstup Petr Nárožný - Úvod K Písni Nos Pro Trable - Live
Vstup Petr Nárožný - Prodej O Přestávce - Live
Vstup Petr Nárožný - Psaníčko Pro Honzu Vančuru - Live
Vstup Petr Nárožný - Sběrné Suroviny - Live
Balíček Karet / Zvedněte Kotvy / Plavci / Třícentová Opera / Smutný Psaní / Colorado / Žlutý Pták / Pojď Ven / Tulák / Balíček Karet - Live
Vstup Petr Nárožný - Úvod 500 Mil - Live
Mávaj Holky II. - Já Procházel Se Jednou - Live
{"copyright_id":"0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604","isrc":"CZA166900468","name":"Balíček Karet","registered_at":"2026-06-08T08:06:15Z","spotify_id":"7LLVvOIcTsFOzFaX2PLsIb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604. 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/7LLVvOIcTsFOzFaX2PLsIb.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/7LLVvOIcTsFOzFaX2PLsIb.
{"copyright_id":"0x9c48d606942e087090d6d86763aab5add1266cc5bd8a7e7e3f855f3b1821fd5d","isrc":"CZA167100382","name":"Mám Radost","registered_at":"2026-06-09T18:14:45Z","spotify_id":"1tIIdpPWPYHmzhhiCNCGbD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c48d606942e087090d6d86763aab5add1266cc5bd8a7e7e3f855f3b1821fd5d. 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/1tIIdpPWPYHmzhhiCNCGbD.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/1tIIdpPWPYHmzhhiCNCGbD.
{"copyright_id":"0xf104d15e5b705ffc51a457fa00f3c1c58c7f1c3a6139c33e532db961320b328d","isrc":"CZA167200402","name":"Láska Je Věc Kouzelná","registered_at":"2026-06-11T13:31:46Z","spotify_id":"1hszDv8Sd9a2xgZVFyAtXp","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf104d15e5b705ffc51a457fa00f3c1c58c7f1c3a6139c33e532db961320b328d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1hszDv8Sd9a2xgZVFyAtXp.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/1hszDv8Sd9a2xgZVFyAtXp.
Check The Czechs! Country Nálada (Zahraniční Songy V Domácích Verzích)
{"copyright_id":"0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604","isrc":"CZA166900468","name":"Balíček Karet","registered_at":"2026-06-08T08:06:15Z","spotify_id":"1bcRUEvR2c89z1OZ7pzkQF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20a191700b63ad704b6a5efbe721d57ada3dfd3fec9cf32ebb931f66db2a604. 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/1bcRUEvR2c89z1OZ7pzkQF.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/1bcRUEvR2c89z1OZ7pzkQF.
{"copyright_id":"0xc759f9ea3c3b21c8db3eb279be544f6ace1fde61a5ab7fb288c4cb256e950ac7","isrc":"CZA167000406","name":"Poslední Večeře","registered_at":"2026-06-19T00:36:14Z","spotify_id":"7J7T4sQFbi1eZZWBWxCGWW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc759f9ea3c3b21c8db3eb279be544f6ace1fde61a5ab7fb288c4cb256e950ac7. 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/7J7T4sQFbi1eZZWBWxCGWW.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/7J7T4sQFbi1eZZWBWxCGWW.