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 0x773e562571c0809020bdefc3b6128fda60e825cc4c325f0e9cc778e0159cf3f4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/63839c60-83b3-433b-89e9-b90ed38a6d96.json and https://artists.proofprofile.net/proofs/artist/63839c60-83b3-433b-89e9-b90ed38a6d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Král a Uhlíř, B. 21, Act II: Introduction
Král a Uhlíř, B. 21, Act I: Oddechu přejte veselé píli
Král a Uhlíř, B. 21, Act II: Nechce spánek v oči vkročit
Král a Uhlíř, B. 21, Act I: Ticho! Purkrabí se blíží
Král a Uhlíř, B. 21, Act II: Již se jasní! ...Tichým krokem
Král a Uhlíř, B. 21, Act I: Smím-liž vstoupit
Král a Uhlíř, B. 21, Act II: Vystrojím ti svatbu pyšnou
Král a Uhlíř, B. 21, Act I: Aj, aj! Jaká to náhoda
Král a Uhlíř, B. 21, Act II: Ejhle, jak v seči
Král a Uhlíř, B. 21, Act I: Zaveďme ho k Matěji!
Král a Uhlíř, B. 21, Act II: Jaký ryk mne plaší z lože?
Král a Uhlíř, B. 21, Act I: Dovolte nám vítat pána
Král a Uhlíř, B. 21, Act II: Zde náš, hle, pán, budiž vítán
Král a Uhlíř, B. 21, Act I: Avšak rcete, tato děva
Král a Uhlíř, B. 21, Act II: Aj, zanechte slzy ženám
Král a Uhlíř, B. 21, Act I: Doušek vína k této zvěřině
Král a Uhlíř, B. 21, Act III: Vroucně vás, ó krásné dámy
Král a Uhlíř, B. 21, Act I: Jaký zvuk to jest?
Král a Uhlíř, B. 21, Act III: Jděte, nezávidím blaha vám
Král a Uhlíř, B. 21, Act I: Dudák děvče měl...
Král a Uhlíř, B. 21, Act III: Mladý příteli, měj pozdrav můj
Král a Uhlíř, B. 21, Act III: Buď zdráv, velemocný králi
Král a Uhlíř, B. 21, Act III: Koukej na tu krásu, ženo
Král a Uhlíř, B. 21, Act III: Je to on, či zrak mne klame?
Král a Uhlíř, B. 21, Act III: Čas je nyní ku hostině!
Jakobín, Op. 84, Act I: Act I: Introduction
Jakobín, Op. 84, Act II: Act II: Introduction
Jakobín, Op. 84, Act III: Act III: Introduction - Scene 1: Ne, pust'te mne (Jiri, Adolf, Filip, Lotinka)
Jakobín, Op. 84, Act I: Act I Scene 1: Sve hlavy v prachu sklanime (Chorus, Bohus, Julia)
Jakobín, Op. 84, Act II: Act II Scene 1: Tak, moji drazi! (Benda, Jiri, Terinka, Chorus, Children's Chorus)
Jakobín, Op. 84, Act III: Act III Scene 2: Jen tise, vejdete! (Lotinka, Julia, Benda)
Jakobín, Op. 84, Act I: Act I Scene 2: Jen postujme tu okamzeni (Chorus, Children's Chorus)
Jakobín, Op. 84, Act II: Act II Scene 1: Serenade (Benda, Jiri, Terinka, Chorus, Children's Chorus)
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 0xbd127bf67586db17eaae2c39990a1931ec11822e087947a427c1eb17b5e5ee74. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB950464114.
Jakobín, Op. 84, Act III: Act III Scene 3: Zde k noham vasi milosti (Benda, Graf)
Jakobín, Op. 84, Act I: Act I Scene 3: Uceny pane, dobry den! (Benda, Terinka, Jiri, Filip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93179ed310226d9c107adb64001de8bf44580bd0895c61c2c2d0a18e3759aaf. 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/DEB950464104.
Jakobín, Op. 84, Act II: Act II Scene 2: Ach boze, bozinku (Terinka, Jiri)
Jakobín, Op. 84, Act III: Act III Scene 4: Jsem v koncich (Benda, Julia)
Jakobín, Op. 84, Act I: Act I Scene 4: Zle je, zle je, ha, ha, ha, ha! (Boys Chorus, Jiri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbc79ec2bf61ebad6e33911847077bd6940a6f2cfd8550bbc05d5d246c7e19f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB950464105.
Jakobín, Op. 84, Act II: Act II Scene 3: Vzbud se, doufej (Terinka, Jiri, Benda)
Jakobín, Op. 84, Act III: Act III Scene 5: Mne zdalo se? (Graf, Julia)
Jakobín, Op. 84, Act I: Act I Scene 5: Ja stastne, se ho zbavila (Terinka, Jiri, Filip, Chorus)
Jakobín, Op. 84, Act II: Act II Scene 4: Pane uciteli, pane uciteli (Terinka, Jiri, Benda, Girls Chorus)
Jakobín, Op. 84, Act III: Act III Scene 6: O, odpust', pane! (Graf, Julia, Kinderchor)
Jakobín, Op. 84, Act I: Act I Scene 6: To mne stat! Tak ctite pana! (Filip, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7651a69caee4b72614135356dc3581aac764614101b2cb32686040f12473d571. 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/DEB950464107.
Jakobín, Op. 84, Act II: Act II Scene 5: Oni sami, Jakobini! (Terinka, Jiri, Benda, Girls Chorus, Bohus, Julia)
Jakobín, Op. 84, Act III: Act III Scene 7: Jen chvili, zkousky (Graf, Adolf, Filip, Benda, Chorus, Children's Chorus)
Jakobín, Op. 84, Act I: Act I Scene 7: Chci s tebou promluvit! (Jiri, Terinka, Filip)
Jakobín, Op. 84, Act II: Act II Scene 6: Jak vzacni hoste k nam! (Benda, Filip, Jiri, Terinka)
Jakobín, Op. 84, Act III: Act III Scene 8: Muj synu, me dite! (Graf, Bohus, Adolf, Filip, Benda, Julia, Jiri, Terinka, Chorus, Children's Chorus)
Jakobín, Op. 84, Act I: Act I Scene 8: Dovolte mi, pane … (Bohus, Julia, Jiri, Terinka, Filip)
Jakobín, Op. 84, Act II: Act II Scene 7: Vase milost! (Benda, Terinka, Jiri, Filip, Adolf, Bohus)
Jakobín, Op. 84, Act I: Act I Scene 9: Slyste nas, kde jste, slyste nas! (Chorus, Terinka, Jiri, Benda, Bohus, Julia, Filip)
Jakobín, Op. 84, Act II: Act II Scene 8: Ja chranim vas! (Bohus, Jiri, Adolf, Filip, Julia, Terinka, Benda, Chorus)
Jakobín, Op. 84, Act I: Act I Scene 10: Slava, slava, slava! (Chorus, Bohus, Julia, Adolf, Terinka, Benda, Jiri, Graf, Filip)
Kral a uhlir, B. 21, Act II: Act II: Introduction
Kral a uhlir, B. 21, Act I: Act I Scene 1: Oddechu prejte vesele pili (Chor der Jager)
Kral a uhlir, B. 21, Act II: Act II Scene 1: Nechce spanek v oci vstoupit (Konig)
Kral a uhlir, B. 21, Act I: Act I Scene 2: Ticho! Purkrabi se blizi! (Jager, Jindrich)
Kral a uhlir, B. 21, Act II: Act II Scene 2: Jiz se jasni! Tichym krokem (Liduska, Konig)
Kral a uhlir, B. 21, Act I: Act I Scene 3: Smim-li vstoupit (Jenik, Liduska)
Kral a uhlir, B. 21, Act II: Act II Scene 3: Vystrojim ti svatbu pysnou (Konig, Liduska, Jenik)
Kral a uhlir, B. 21, Act I: Act I Scene 4: Aj, aj, jaka to nahoda (Matej, Jenik, Anna, Liduska)
Kral a uhlir, B. 21, Act II: Act II Scene 4: Ejhle, jak v zlobe (Kohlerinnen und Kohler)
Kral a uhlir, B. 21, Act I: Act I Scene 5: Zaved' me jej sem k Mateji! (Chor der Kohler, Matej)
Kral a uhlir, B. 21, Act II: Act II Scene 5: Jaky krik mne plasi z loze? (Matej, Anna, Kohlerinnen und Kohler, Konig, Jenik)
Kral a uhlir, B. 21, Act I: Act I Scene 6: Dovolte nam vitat pana (Kohlerinnen und Kohler, Matej, Konig, Anna)
Kral a uhlir, B. 21, Act II: Act II Scene 6: Zde nas, hle, pan budiz vitan (Jager, Jindrich, Konig, Matej, Anna, Liduska, Kohlerinnen und Kohler, Jenik)
Kral a uhlir, B. 21, Act I: Act I Scene 7: A vsak povez, tato deva (Konig, Jenik, Matej, Liduska, Kohlerinnen und Kohler)
Kral a uhlir, B. 21, Act II: Act II Scene 7: Aj, ponechte vzdechy zenam (Matej, Anna, Jenik, Liduska, Kohlerinnen und Kohler)
Kral a uhlir, B. 21, Act I: Act I Scene 8: Dousek vina k teto zverine (Anna, Matej, Konig, Kohlerinnen und Kohler)
Kral a uhlir, B. 21, Act III: Act III Scene 1: Vroucne vas, o krasna damy (Kavaliere, Hofdamen, Jenik)
Kral a uhlir, B. 21, Act I: Act I Scene 9: Jaky zvuk to jest? (Konig, Chor, Anna, Matej, Liduska, Jenik)
Kral a uhlir, B. 21, Act III: Act III Scene 2: Jdete, jdete! Nezavidim blaha vam (Jenik)
Kral a uhlir, B. 21, Act I: Act I Scene 10: Dudak devce mel (Matej, Chor, Anna, Liduska, Konig)
Kral a uhlir, B. 21, Act III: Act III Scene 3: Mlady priteli, mej pozdrav muj (Jindrich, Jenik, Pagen)
Kral a uhlir, B. 21, Act III: Act III Scene 4: Bud' zdrav, velemocny krali (Chor der Hoflinge, Konig, Jenik, Richterkollegium)
Kral a uhlir, B. 21, Act III: Act III Scene 5: Koukej na tu krasu, zeno (Matej, Anna, Konig, Liduska, Jenik, Ritcherkollegium)
Kral a uhlir, B. 21, Act III: Act III Scene 6: Je to on, ci zrak mne klame? (Matej, Liduska, Anna, Konig)
Kral a uhlir, B. 21, Act III: Act III Scene 6: Cas je nyni ku hostine! (Konig, Matej, Chor, Jenik, Liduska, Anna)