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 0xb913140b33cd56d1c8a8c88a183a01619aba6400d547bdf0c48151da7b34bd5c. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3fd53e6-6893-4adf-9a74-eb389bfa2ee5.json and https://artists.proofprofile.net/proofs/artist/d3fd53e6-6893-4adf-9a74-eb389bfa2ee5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Matthäuspassion, BWV 244: I. Erbarme Dich, mein Gott
Orchestral Suite No. 3 in D Major, BWV 1068: I. Air
Check The Czechs! 70. Léta (Zahraniční Songy V Domácích Verzích, Vol. 2)
Check The Czechs! 80. Léta (Zahraniční Songy V Domácích Verzích, Vol. 2)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2561e3f16893f5d321d7919288bb3d0d41bd2aaa1096dd0ea7d3173550e8de1c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161202169.
Blowing in the Wind - This Land Is Your Land
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16059ffe03a33f0ade3685339ae69743c08860e1b53fbd74230c64443d12c498. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161003867.
Taneční orchestr Čs. rozhlasu Bratislava
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e370be2f9607e2a8446d723b94e003fe802f01ffc8d0a6e2eb6c4c60240d2cc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1888242ee30a2a4d260bf7484359c928e6544f8d0c99916a0498206faddd06da. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166800274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbca579841fbfb02697f6febd376e7927bba756a328063572fcf87a135bb1e0c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167400186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68c291fad7aaa87693bf1abd0259bcfc08438723288a22483bf4dba68e16936. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e456836226004854298b3db2df547db3e08423446146a44704a70d63fadcc. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5842237992562fafedb622556a3e5cc50d1141f21829591424e0faf6bae1d540. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161101126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56b225580c7eb5a3ca538c33ab8358d0279bbd437c7bdece59fd678544d787. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161101108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4decb7f56572fd5e948a3d0fefb7db7b6905f40f707e18638f89c7964765e98b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161101127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56818470ec407f149e1d45b7c1aaae494c6a86b19a674cf171785507b4aef862. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd3540a40fb064621fefc87e045e7b7764ab1d678c8ef09e6684bc070f71ac2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167500248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebf498ff03cf5734aee89e0bc56554d3f4c294fc4343953dbcb17f345903e99. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167600327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c4f168775289f6b33ebdb7d15161fa7461b7e4dd3720274bfe7acc0017ccb3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167700321.
Nejvýznamnější skladatelé české populární hudby Zdenek Merta 2 (1986-1995)
Sonnet 8 "Music to Hear, Why Hear'st Though Music Sadly"
Sonnet No. 144, Two Loves I Have, of Comfort and Despair
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Sonnet 76 "Why Is My Verse so Barren of New Pride..."
Sonnet 28 "Jak najít klid, to na mou duši nevím..."
Sonnet 148 "Láska mi oci tolik pobloudila..."
Sonnet 94 "Kdo má moc ublížit, a neublíží..."
Sonnet 116 "Ne, neznám nic, co prekážet by melo..."
Sonnet 146, Op. 49 "Ubohá duše, v hríšném vezíš tele..."