Dmitri Aleksandrovich Hvorostovsky (, ; 16 October 1962 – 22 November 2017) was a Russian operatic baritone. Early life and education Hvorostovsky was born in Krasnoyarsk in Siberia during a time whe
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece6162493fe6ad4f6fd50583118672913d34457476157fd9e8ed8588a70a266. 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/e8a3d192-2ba2-41a6-a439-55ac085c94b3.json and https://artists.proofprofile.net/proofs/artist/e8a3d192-2ba2-41a6-a439-55ac085c94b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mascagni: Cavalleria Rusticana / Leoncavallo: Pagliacci
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd054bd105e2e565c16b9d4f843afeac8de31422ab4ce8818433bf91a5bde642a. 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/NLA508905201.
Cavalleria rusticana: "Regina coeli laetare...Innegiamo, il Signor non è morto" (Preghiera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5c5af67d0153de7fb97f26d7c71173f01fbb7dc4e5cb8c95c1f043c070f146. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLA508905208.
Cavalleria rusticana: "Voi lo sapete, o mama" (Romanza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619b5dcad8bc864201e18a8027911534a5fd342d23c56d01c7fcc46b77579e4d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLA508905209.
Eugene Onegin, Op. 24, TH.5 / Act 1: Introduction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4e42101d2172ae09e26fbcf76dc7c11ec5bb5a1b47f9aa7b53598073d167ff. 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/NLA509004901.
Eugene Onegin, Op. 24, TH.5 / Act 2: Entr'acte and Waltz with Chorus. "Vot tak syurpriz!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d11ea3fb1e220285fc79cef0b3dbd40a616e360f52823b2165be9d73441f251. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLA509004916.
Eugene Onegin, Op. 24, TH.5 / Act 1: "Slikhali l vi za roschei glas nochnoi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cafee359029d07d809c8e247acb0105eae26f11a94cbf74b68eb45ec8b220c. 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/NLA509004902.
Eugene Onegin, Op. 24, TH.5 / Act 2: Scene and Couplets. "Uzhel ya zasluzhil ot nasmyeshku etu?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf358d518b04c245863b948d9f4be1b0499b18da4b23d56ef16d9912363c8ff1f. 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/NLA509004917.
Eugene Onegin, Op. 24, TH.5 / Act 1: Peasants' Chorus and Dance. "Bolyat moyi skori nozhenki so pokhodushki" - "Uzh kak po mostu, mostochku"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84e53134623fa0350c1ec7dc973aee0698d10bec591b9f11242219e68a1c88a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLA509004903.
Eugene Onegin, Op. 24, TH.5 / Act 2: "A cette fête conviés"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd8446e177aac465ee23ad572a506396e25b96eeca09c4a7fac475bdeeedf16. 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/NLA509004918.
Eugene Onegin, Op. 24, TH.5 / Act 1: "Kak ya lyublyu pod zvuki pesen etikh...Uzh kak po mostu, mostochku"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd558eac4b19d9bd4f56ced37a02d765cf17dbcb78e5e5d9a4a004f1985d671. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/NLA509004904.
Eugene Onegin, Op. 24, TH.5 / Act 2: Mazurka and Scene. "Messieurs, mesdames, mesta zanyat izvolte" - "Ti ne tantsuyesh, Lenski?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceda00cf58223e0b32a62acb0e583c6e07172126531126000080a4057293fa15. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLA509004919.
Eugene Onegin, Op. 24, TH.5 / Act 1: Scene. "Nu ti, moya vostrushka"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629a790333083429e3c24eba678d9e96eed3b96a2fc4939096700c65e6149540. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLA509004905.
Eugene Onegin, Op. 24, TH.5 / Act 2: Finale. "V vashem dome! V vashem dome!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a4cc933bba34c1ddd5529c218683df506fcd5fd541eeb0afe4a9047d7a916d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/NLA509004920.
Eugene Onegin, Op. 24, TH.5 / Act 1: Scene and Quartet. "Mesdames! Ya na sebya vzyal smyelost"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66df69d2fb8ff6c1b284a6f96f0a6350a456bdf92791eef820c3269a48ae213. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLA509004906.
Eugene Onegin, Op. 24, TH.5 / Act 2: Introduction, Scene and Aria. "Nu, shto zhe?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3511e931ea222115baa8195cb2296726ad2563f5d7055059d4bf8f7655fcad3. 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/NLA509004921.
Eugene Onegin, Op. 24, TH.5 / Act 1: "Skazhi, kotoraya Tatyana"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5500ec9e6508ac0600006ffd2c9573d4a78db171ac4b042e3d58a2da609d9d. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLA509004907.
Eugene Onegin, Op. 24, TH 5 / Act II: "Kuda, kuda, kuda vi udalilis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4de6c654efc5086241ab8a5406ef2bcc5de889d4fb6bd88396b5f6c96372d2. 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/NLA509004922.
Eugene Onegin, Op. 24, TH.5 / Act 1: Scene and Arioso. "Kak shchastliv, kak shchastliv ya!" - "Ya lyublyu vas"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d92bbf1028efa7623abf543371973bb45d2d6861015c95c32b82405bd3b5fb0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLA509004908.
Eugene Onegin, Op. 24, TH.5 / Act 2: Duel Scene. "A, vot oni!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2a7aed2a58ed8cbb8ad9d44b689880b988e34e7d0f2e263ab562b8f27061a2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLA509004923.
Eugene Onegin, Op. 24, TH.5 / Act 1: Closing scene. "A, vot i vi!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fa27c022521ffc6faca11db38cf241850710ed4e2a01e79242a31790296e67. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLA509004909.
Eugene Onegin, Op. 24, TH.5 / Act 3: Polonaise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1fd2b7d51a551f645604bc59aea91b4b5a61638c1a6659432305483d070c8d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLA509004924.
Eugene Onegin, Op. 24, TH.5 / Act 1: Introduction and Scene. "Nu, zaboltalas ya!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57480ab18cd9b769e22cf40de285db7f25144cb69e69514783d2424019e35e2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLA509004910.
Eugene Onegin, Op. 24, TH.5 / Act 3: Scene and Aria. "I zdyes mnye skuchno!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ee7d29d84b00713240bd1bc22f7dd13492072ff05209c6a9c3449415b2e69a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLA509004925.
Eugene Onegin, Op. 24, TH.5 / Act 1: Letter scene. "Puskai pogilabnu ya, no pryezhde"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11366f01751e0b876572f4dd3e5b49569ddad066eac395addf08949a7697412e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLA509004911.
Eugene Onegin, Op. 24, TH.5 / Act 3: "Knyaginya Gremina! Smotrite!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d218cd68cb4723968851ccdf2b402108cb8d40a916f33d3741ec007405b771. 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/NLA509004926.
Eugene Onegin, Op. 24, TH.5 / Act 1: Scene and Duet. "Akh, noch minula"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5916fd0b4db6b394a174285e3168488c2dddafcaba28019d2d4ccc867ae98602. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NLA509004912.
Eugene Onegin, Op. 24, TH.5 / Act 3: "Lyubvi vsye vozrasti pokorni"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95282eea68fea793c43bcc5c50ee608c44cf04a0e2e3a4833ee8ba24bd399249. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLA509004927.
Eugene Onegin, Op. 24, TH.5 / Act 1: Servant Girls' Chorus. "Dyevitsi, krasavitsi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ea58df6f4e16c332e7535e25ec02b90cf5d81dafdba412605d9edfd30cb247. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLA509004913.
Eugene Onegin, Op. 24, TH.5 / Act 3: Scene and Arioso. "Itak, poidyom, tebya predstavlyu ya" - "Uzhel ta samaya Tatyana"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5341f7b37f0f7ff6e20e85e472818e15e01ec87808cecd1db57e92008420737. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NLA509004928.
Eugene Onegin, Op. 24, TH.5 / Act 1: Scene and Aria. "Zdyes on, zdyes on, Yevgeni!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd191677ea44794f0a4e075e57cf696814ac57984129dce6128b5f32c4a507a74. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/NLA509004914.
Eugene Onegin, Op. 24, TH.5 / Act 3: Closing Scene. "O! Kak mnye tyazhelo!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56f1e9816169aaf1656ad858d8bb84f6d3caf911edac3c9360e1ac0cd0e5195. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/NLA509004929.
Eugene Onegin, Op. 24, TH.5 / Act 1: "Kogda bi zhizn domashnim krugom"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27209a06c3b1c91bb8a89fefaf9dd85d60a0c4a447aba2a5853d2f0c11925e28. 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/NLA509004915.
Eugene Onegin, Op. 24, TH.5 / Act 3: "Onegin! Ya togda molozhe"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3959dfb2c3277539219c6f8fdcfe522cea92e3db80f06fa31879c628082387d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLA509004930.
Opera Arias (Baritone): Hvorostovsky, Dmitri - Borodin, A.P. / Mussorgsky, M.P. / Rubinstein, A. / Wagner, R. / Giordano, U. / Verdi, G.
Prince Igor (Knyaz Igor), Act II: Ni sna ne otdikha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45fd7d75782508df5487b6da2ee80c9187f61133491abd4b32f2b1b3f8c8bb6. 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/USASX0736501.
Tannhäuser: Tannhauser: O du mein holder Abendstern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8038717b76eb7da2225cd0909414cb2fd35ccb09de57dd3106b0463247a1a14. 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/USASX0736507.
Andrea Chénier, Andrea Chenier, Act III: Nemico della Patria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9550cb80ae8ec00dc80ef9362fe2fea3a2ddb35360bce38c57566b55ec778096. 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/USASX0736508.
Tosca, S. 69, Tosca, Act I: Tre sbirri, una carrozza, "Te Deum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1086b811f3deb035f82cf163d35a0d1a9add64b66dc2fb4b270175e98d05b2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USASX0736511.
Faust, CG 4, Faust, Act I: Avant de quitter ces lieux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35323286b02841f892eff74cc30defaad4bbb22b2dde52eb3a6a4bb0c25fe058. 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/USASX0736512.
Carmen, WD 31, Carmen, Act II: Toreado Song. Votre toast, je peux vous le rendre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320e3c70be2f02adb66d37ff1d35ec24d813bd9bf41c917bf375aedb43fbc8f. 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/USASX0736514.
Hamlet, Act II: O vin, dissipe la tristesse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9bfb2e5cdcd672e0863e6fa0b8762432455da2ecd25d2e09618b774b0dd513. 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/USASX0736515.
Hvorostovsky, D.: Songs - Tariverdiev M. / Bogoslovsky, N. / Fradkin, M. / Solov'Yov- Sedoy / V. / Basner, V. / Novikov, A.
Gde-to Daleko (Pesnya o Dalekoy Rodine) (Somewhere Far Away)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d06b45f78b690fe7b0ef2665a338c13f25f8cdd1938663a66d693df94440d4. 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/USASX0531501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9296b7502b5d8ba014839fa4859208da9b780b25eb282b9ded27d027a9ecc1. 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/USASX0531502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8735a01dd3fe881d22554b714520b17daeb661ce65a055ceade4f5d1a2d4571. 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/USASX0531503.
Moscow Nights: Gde Zhe Vy Teper', Druz'ya-Odnopolchane (Where are you, my brothers?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ccf6dc54cd9b58863674f4ca94fe1cc7fc6fa8b3ae613d326288818db4a713. 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/USASX0531504.
Na Bezymiannoy Vysote (On a Nameless Hill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a6a618d30127285936084c4dccc51b193c45f2ed2d9797c8ecdb41ccf5dfb8. 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/USASX0531505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f708a4fd86726c9f372628c7b6481cd986d2ecfa55b8abf357e1453f822dbd. 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/USASX0531506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b5281248e53f4bfb1711b8b5ea6f14da98cebca797a394ea15408c9b30efa5. 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/USASX0531507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc5edccd70d17794605fba4874c971bf940a3e7507951a6b3fc41bce281ce40. 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/USASX0531508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ca0d9c58ef67657c6b72c0677b0bc082ddd3808151c42d68f0964cf549d98b. 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/USASX0531509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261f9f9acc8dbf4f0f1c0e6194afbc62ed87d45089fd6533ba7c49ac8ff50f72. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USASX0531510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426b686f4e25d4452c0b959ae254cb29aa651512289d5e7fb8bd989bd87e36bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USASX0531511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ea44068618b99dfd583960eb120b07cc9b423a30db450e4af351783b67242b. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/USASX0531512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527c0039c6848ce48e5933d4c09e7ce0e178f24aff93e645956284b1fdac3f54. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/USASX0531513.
Dorozhka Frontovaia (Pesenka Frontovogo Shofiora) (The Road to the Front)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4642da97403956078971a790d1eb3744530581ee7f09a614c7d6ab8e8a048b81. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USASX0531514.
Na Sopkakh Mandzhurii (The Hills of Manchuria)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a37fee7fd9121fc4846fb7513c4dec6f24892f1538130267b7abb8847f4515. 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/USASX0531515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c060cb18cc3d426b3669831231b287e8fe8c5ff4efa8932b54d5cc1a291707. 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/USASX0531516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1c83f5bc34b383d0e8181c7e93e1b07bc545dbae997d1b2b1afd3193e580fe. 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/USASX0531517.
Un ballo in maschera, Act I: Preludio (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885b6678255f7691235a4103f7249a86665b0834200146fb6dfdbf5922607ed1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEB951998028.
Un ballo in maschera, Act I Scene 1: Posa in pace (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b500b855ab81cc1013b9f06151276ac4cf98e9565fa2906c0c759017ea7fc1. 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/DEB951998029.
Un ballo in maschera, Act I Scene 1: Amici miei, soldati (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f02b27c8230fb6b3133fe7d2e982e4aa85c80a4cc61e4f8aa03bd81d5c487. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEB951998030.
Un ballo in maschera, Act I Scene 1: Il cenno mio di lá con essi attendi (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db1c58f3e38b5aab77bd4d1759e525d63e58c6a3e74e3be5acedf0b17422561. 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/DEB951998031.
Un ballo in maschera, Act I Scene 1: Alla vita che t'arride (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d40233ede81b5df1d58a3d274abca2c81836a0bb6bb3a3b62807f37b0e4af5. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB951998032.
Un ballo in maschera, Act I Scene 1: Il primo giudice (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8e86994826045085280718cd7d4528f9765e33be444674b69bfcc2c79dcaac. 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/DEB951998033.
Un ballo in maschera, Act I Scene 2: Zitti, l'incanto non dèssi turbare (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe595dce4272103fe5046496202cce4b57be5078296e2dd38a08edec867d70639. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEB951998034.
Un ballo in maschera, Act I Scene 2: Arrivo il primo! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497e371aa539a0a24f420fcd6e8831f3ba6bfa1486de838afb58221f619234d. 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/DEB951998035.
Un ballo in maschera, Act I Scene 2: Che v'agita così? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec105e3d2cd03817d5542e3465d8df194dc728c6da34a901b5114031c3ddafb. 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/DEB951998037.
Un ballo in maschera, Act I Scene 2: Su, profetessa (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ea92c0edce52f31453c95373415ddef5f7e63b762087715cab1140185ef58. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEB951998038.
Un ballo in maschera, Act I Scene 2: Finisici il vaticinio (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534e981be144bab1ceb99786f329611fa051708f43257f8d6e84d761ea4d7bf. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB951998040.
La traviata / Act II: Di Provenza il mar, il suol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c588cdbe8f399d4332d6367e86f916380f5ad1afb3c5e3aa163942228f9fc1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLA509004204.
Il barbiere di Siviglia / Act I: No. 2 Cavatina: "Largo al factotum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ab94a7bf5b7a85cdc70138725a361a5e8aa47395d733986906d64f563d926. 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/NLA509108001.