1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x704b4a4547bc47f04830cf1750f38231b7757962fc22965d89d9623f7db31171. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/935b46bb-7240-42a9-90ed-1c7a775fda04.json and https://artists.proofprofile.net/proofs/artist/935b46bb-7240-42a9-90ed-1c7a775fda04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Traviata, Act I: Brindisi - "Libiamo ne' lieti calici" (Instrumental Version)
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x9166d106b6bf020af045b7c2c31e655621096fff62d45fe97aa9b45eb128ef09. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US5541404100.
The Magic Flute, K. 620, Act I: Papageno's Aria - "Der Vogelfänger bin ich ja" (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83859e1bd2c04e266a08038127d42ecfee434b0356145724ac8b942f93311671. 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/US5541404108.
Gold und Silber (Gold and Silver), Op. 79: Waltz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7200daadb8dc67a541746b68cc36cf29f83e537ea18648ba9e6324967cc019af. 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/HUA251680911.
Fantasia on Hungarian Folk Tunes, S. 123
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2b40b55fcc2a7e7318d6153deb3e58ed036fe127b1b462c63b93e61bbcb324. 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/DEF056001040.
Hungarian Rhapsody No. 1 in C Sharp Minor, S. 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f610a8ad4821bf515e0f992ffe6347e1de4ce2eaa4bc8c806527c46e6b878f6. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/DEF057200020.
Piano Concerto No. 1 in E Flat Major, S. 124: II. Quasi adagio - Allegretto vivace - Allegro animato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107483bd2054174701a1893e89bc56a39a78dbc1e0ba5a81451fdb6568ea1b5f. 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/DEF058703222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878380695415dbc07fd197d503e254d0f9fb6db2b68a27c912e0f6848f6e914c. 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/GBF078400580.
Hungarian Rhapsody No. 2 in C Sharp Minor, S. 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a575c1d3ff4652a107d311bcffb04d4de0437166591021b5e47531cd25960b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057200030.
Piano Concerto No. 1 in E Flat Major, S. 124: III. Allegro marziale animato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa37d0fc41bae45315dd5a98d94b8f894b26a7cec330a74c4fb114de92dcf7f1. 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/DEF058703223.
Piano Concerto No. 2 in A Major, S. 125: I. Adagio sostenuto assai - Allegro agitato assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b177d0c4188625c415034e8ae130a8f7a2ef160bbb789cf5677d672621735a. 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/DEF058703231.
Piano Concerto No. 2 in A Major, S. 125: II. Allegro moderato - Allegro deciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1093ae36c5b0830e2008862d05a7e7bafbca5c0282a52ad193ad806060496c0. 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/DEF058703232.
Hungarian Rhapsody No. 5 in E Minor, S. 244 Heroïde-Elégiaque
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0d50ffdec7149628e896a26e94b661a36e0d8b3e1a5ffe6abca52715e93675. 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/DEF057200060.
Hungarian Rhapsody No. 6 in D Flat, S. 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e31c969e1baccf23bb1a1a1546e8e7bf71be57b692115a2f7cb0dc11345e337. 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/DEF057200070.
Hungarian Rhapsody No. 7 in D Minor, S. 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dbd60d2c4028aec82cd2b848994ae3426ab3774059af2ee8650d6110b7d133. 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/DEF057200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd086748d28f51a3d1e4f3ba46b1124600301483452da230cbe9346787bfe4eb8. 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/DEF058703240.
Hungarian Rhapsody No. 8 in F Sharp Minor, S. 244
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb6ba71a94ff351b261657902814c1c6c39a78f840ecc1827f6bb1836631b58. 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/DEF057200090.
Hungarian Rhapsody No. 10 in E, S. 244 "Preludio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3617322c2e0bce14df9d84bf58cf53ed2ee58af5497d72ef525a8de484281a66. 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/DEF057200110.
String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto "The Celebrated Minuet"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08aa613fdf730319fe4d805c45119cbe48b7a6cb39f09e5cdefdaa5859d8d7da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US5541302513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33e1719185c74cc5a32dd4a08f1840e07cd40cba779ea6411b5e9b9a99729b9. 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/US5541302514.
The Four Seasons - Concerto No. 4 in F Minor, Op. 8, RV 297 "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c161f0d1e6468d9779844e7f87eee2ae3cf5f0b3b0eb1837c0d556d1a423e7. 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/US5541302526.
50 Years of Hungaraton (1951-2000): Singers
Bank ban: Bank Ban, Act 2: Aria: Mint szamuzott, ki vandorol - Hazam, hazam (Bank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d2ef47f588e92f4f61675c5675cb728e38a5750ce94b39b2b8c92cd85d6515. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/HUA253172610.
Simandy, Jozsef: Tenor Arias - Donizetti, G. / Wagner, R. / Erkel, F. / Verdi, G. / Tchaikovsky, P. / Mascagni, P.
Erkel: Bank Ban (Excerpts) / Hunyadi Laszlo (Excerpts)
Bizet: Carmen (Excerpts) (Sung in Hungarian)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b38b44e80ce16937fed19a7d5ca7dc636a2651bd9280121307dabd72772159a. 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/HUA250103501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b879a5baf8136c7014fff2a138a07130bb53ce8652d6b9fb8e93d67fceea81b. 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/HUA250103503.
Opera 125 (Stars of the Hungarian Opera, Vol. 2/4, 1884-2009) (1931-1966)
The History of Italian Music (100 Famous Songs)
Tenor Love Arias: 50 Must-Have Opera Classics
The Marriage of Figaro, K. 492: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2a78e445864c6a78509feafc37ee137dbc8b2974e5bdf661dbd43b3794ba2c. 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/US5541404302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba825a89e20c4181598f148bdb538f3278e7511a23f9b76069ad7bf36266a8d. 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/US5541303594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea9905de673a3f895b7e917e7d6f2f544d04418a412db65756361193d337691. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HUA253245905.
Klassik für Jedermann: Galakonzert der Tenöre
Komlossy, Erzsebet: Mezzo-Soprano Arias - Gluck, W. / Verdi, G. / Erkel, F. / Saint-Saens, C. / Wagner, R. / Mussorgsky, M.
Das Veilchen vom Montmartre (The Violet of Montmartre): Ma Onrol almodtam megint (Sung in Hungarian)
Hungarian Radio And Television Symphony Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5fe64d2113e3814799357699b5859ae0ab128e45eb5cd152db39b3fee3a434. 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/HUA251688007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf48971046c419aae35a16d4d539edf9ad66a9753c01bb39dde6a01701a9b990. 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/HUA251137601.
Bank ban: Act II Scene 1: Aria: Olj meg engemet, Bank (Bank, I beg you kill me) (Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4d8394275771764fa38e6f1eaf9188b7e9a340bcc4124b085951e99995faab. 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/HUA251137702.
Bank ban: Act I Scene 1: Drinking Song: Bordalt, Petur … Ha ferfilelkedet (Well then … If ever two dark eyes) (Chorus, Petur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23da202e953a8164ef34b85daea33e96d7b4c5e1c417fa12df38664bbb53168. 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/HUA251137603.
Bank ban: Act I Scene 1: Scena: A kiralyne! … Szep oromkonny (The Queen! … The brilliance) (Courtier, Chorus, Otto, Melinda, Gertrud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff70cec0372eb8d8e515b08fd0af7a17b9c75e61bacc2aac68a5530b5ac3300d. 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/HUA251137604.
Bank ban: Act I Scene 1: Duet: Hivtal, Petur ban! (Your news, Petur Ban!) (Bank, Petur, Biberach)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebb5113e07d88bd610766a50326792c461e6bf1c9370be00bfa32442f15c12b. 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/HUA251137605.
Bank ban: Act II Scene 2: Magyar hazamnak falvait bejartam (The folk are near starvation) (Bank, Gertrud, Otto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f6340f44bcd05aefdfd9790222cff98712109b6a3dfd9e8162c10c1654d303. 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/HUA251137706.
Bank ban: Act I Scene 2: Scena, Aria and Duet: Melinda, csak egy szora! (Melinda, just a moment!) (Otto, Melinda, Biberach)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6faece654c1716ceb392e4586d08f52c7812e041b1cdd53eb50b69d8c658bb4. 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/HUA251137608.
Bank ban: Act III Scene 1: Aria: Elt regen egyszer ket kis madar (Two tiny birds lived once a day) (Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb949314bbd5f08b2549c16706821c38689b187ea29a735f476f9819622b870a0. 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/HUA251137708.
Bank ban: Act III Scene 1: Recitative and Lullaby: A csonak keszen var (The boat is waiting here) (Tiborc, Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9b6018d968899b2658481cfebcfb9232dd61969c68b372bb16bbb78a8fc11e. 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/HUA251137709.
Bank ban: Act I Scene 2: Scena: Oh, szegyen, im az elso leny (What shame this woman brings on me) (Otto, Biberach)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9ba34a4b3dfc0d0e08a5c556385f9f42947df180603d58bbdb21d041f2995f. 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/HUA251137610.
Bank ban: Act III Scene 1: Scena: Ne uljetek most a ladikra fel! (Do not embark!) (Chorus, Tiborc, Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526f89fe538df0abdfd83e0fc1e4a51bb7cf2b7e029a07ce0cf12af7ebdac644. 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/HUA251137710.
Bank ban: Act I Scene 3: Finale: Most Gertrud elbocsat (My noble guests) (Gertrud, Chorus, Melinda, Otto, Petur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4bd64f26426fb986dd33b09c475ad36cf94e1e9c652eb6e464d6c7f04d5b0a. 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/HUA251137611.
Bank ban: Act II Scene 1: Aria: Mint szamuzott, ki vandoro! (Just as a homeless wanderer) (Bank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c5a0fc20c363c49152e84dd3ed68e740a40b98e4919ca6446ce87ce9157fbf. 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/HUA251137613.
Bank ban: Act II Scene 1: Duet: A beketlenek terveit (I'll put before the queen) (Bank, Tiborc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5015624ac80ec17516d03d8d98316f524f89f5883a11d82c4aacc70e8b9c71d. 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/HUA251137614.
Bank ban: Act II Scene 1: Scena: Gyaszhirt hozok (I bring to you fearful news, my Lord) (Biberach, Bank, Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe189e6fb4c35cc3f725ec1eb32a5fae9c9cab6417c4040f8c7bcfc519c1c5e55. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HUA251137701.
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Bank ban: Act I Scene 1: Scena: Ah, Biberach orvendj (Ah, Biberach, listen) (Otto, Biberach, Petur, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b2a045377bacf69364edb05874cdb97b396433414727eb0b89be8d7ae071ce. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HUA251137602.
Bank ban: Act II Scene 1: Duet: Hol van feher homlokod liljom viraga? (Where is the pure white lily of virtue you wore?) (Bank, Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96683fc3bf52a07a98fed72b963f4f305b7b1bf215ee6401df4236f53cad8faa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HUA251137703.
Bank ban: Act II Scene 1: The Farewell: Huseges Tiborcom (You, my faithful Tiborc) (Bank, Melinda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4e2ade840db4f282919fd0e5d6bd720ee48680a292cf7030d83681b1b2e9df. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HUA251137704.
Bank ban: Act II Scene 2: Duet: Bank ban! Te itt? (Bank ban! You here?) (Gertrud, Bank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4f9e6b0f48f8a0a4d8a18bfb7aa2e34ab09327a3009ea2f5b23a2c6b012ba8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HUA251137705.
Bank ban: Act I Scene 1: Scena and ballet: Jojjetek barataim! (Hear me, friends!) (Petur, Chorus, Courtier)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514b7644af59a866204536f10140799c9128459e3899cba6f14535c372ab1ce2. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/HUA251137606.
Bank ban: Act I Scene 1: Scena: Gyenged szived nem orul (All this noise and gaiety) (Otto, Melinda, Gertrud, Biberach, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb5517bc06dbd7f7c13fe4b001f327abfaad22e446bd160ea1c605bd401005c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HUA251137607.
Bank ban: Act III Scene 1: Scena: Szegeny gyermekem (Hush, my dearest one) (Melinda, Tiborc, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035940473664f2591a3b564a11efc78681c3fc5ce954d35c269892e160769ceb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HUA251137707.
Bank ban: Act I Scene 2: Romance: Lett volna vak e szem … Melinda! te egi nev (My eyes were better blind … Melinda, how bright) (Bank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a37c3d12194ed0a3efce1bf7a795a191613225fa5b2ccf50df835ff7b90c0b7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HUA251137609.
Bank ban: Act III Scene 2: Scena: Isten, a holtnak adj orok nyugalmat (God rest her soul) (Chorus, King Endre, Knight, Bank)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404d57d91899487bd41872644f5e0e4c5e828d5515aca13307dcf89a139d4169. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/HUA251137711.
Bank ban: Act III Scene 2: Finale: Oh, jaj nekem! Tiborc! (Ah heavens! Tiborc!) (Bank, Tiborc, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f536789da8d164b5ccc00672158c26f2d51dea916ad4057865e3b6f5cef3f9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HUA251137712.
Bank ban: Act II Scene 1: Duet: Sebhely disziti homlokod (What's that great scar upon your brow) (Bank, Tiborc)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149398e97e3b441f45b389c1f8d1902a003ae601e9265579226ac7671f531c48. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/HUA251137615.
Bartok: Cantata Profana / Kodaly: Psalmus Hungaricus
Kodaly: Szekely Fono (The Transylvanian Spinning Room)
Kodaly: Psalmus Hungaricus / Peacock Variations