thumb|Tourangeau in 1970 Huguette Tourangeau, (August 12, 1938 – April 21, 2018) was a French-Canadian operatic mezzo-soprano, particularly associated with the French and Italian repertories. Life a
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 0xc6a45dc13fe6042a91cb7d352010458ee9e09cde5668ec7f001537d3a3c61a75. 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/08492041-a7fa-4f46-9202-e4806c7ada83.json and https://artists.proofprofile.net/proofs/artist/08492041-a7fa-4f46-9202-e4806c7ada83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maria Stuarda / Act 1: "Si, vuol di Francia il Rege"
Orchestra del Teatro Comunale di Bologna
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 0x984333d0b1c788944910800bda3a661bc693b0828eb88ff09be67d9ff1454755. 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/GBF077441102.
Maria Stuarda / Act 1: "Fra noi perchè non veggio Leicester?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c158a16435c11cbf82bf67c632c3a4aedf67c69bcfc477f751cc1bda1b25e7. 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/GBF077441106.
Maria Stuarda / Act 1: Hai nelle giostre, o Talbo?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c5c1a4542eddb90f39e32b579ce59a156f12c202153ba9cad2b13a4017506b. 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/GBF077441107.
Maria Stuarda / Act 3: "Oh mio buon Talbot!" - "Delle miei colpe lo squallido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb070ef9dddac97a465d7510e60f0aebdc3a6c42a33b09922b3e7cada10af05. 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/GBF077441128.
Maria Stuarda / Act 1: "Questa imago, questa foglio" - "Ah! rimiro il bel sembiante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb240ef8147be56ae98c165f811f33f965cf1ff18c5f2ac5607f7c12cac15cd64. 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/GBF077441108.
Maria Stuarda / Act 1: "Era d'amor l'immagine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730033ae5800801d11507262ff89fe3a952c83df4b704de1ec232ff77bf2b4fc. 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/GBF077441110.
Maria Stuarda / Act 2: "O nube che lieve per l'aria"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324ba592bc14656e9962ba8973dc75c87e670c914fa0784364408cd5ae3372a7. 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/GBF077441113.
Maria Stuarda / Act 2: "Ah! non m'inganna la gioia!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcc7966281d64135bc71b7a7347c4feca8a87db094b76d062c814a59292f986. 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/GBF077441115.
Maria Stuarda / Act 2: "Da tutti abbandonata"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d9b0bdbda8ba0e0e422903c1ebdf1e1f771f6c50aeb80f8e35795ade770341. 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/GBF077441116.
Maria Stuarda / Act 2: "E sempre la stessa"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d593f625075aac44fa6c395ffeeb87892003e229d655091db40bc960058be0. 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/GBF077441119.
Maria Stuarda / Act 3: "E pensi? e tardi?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d28e94a9bacab976512459fbdb07ebce4942264f237b048747672fc0d35f50d. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBF077441122.
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
Maria Stuarda / Act 3: Quella vita a me funesta - Regina! A lei s'affretta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa741247a851b7b3ebba7ed390fa07f0676bf42ae10865377b26187257eb4860a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBF077441123.
Maria Stuarda / Act 1: Ah! quando all'ara scorgemi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc160c177fd62911015a3ee8d3777e44f538b8a454a5448c57ee54ef9a8d25b2. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/GBF077441103.
Maria Stuarda / Act 3: Ah! Deh! per pietà sospendi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6001c33a784ca82ad0934ddcba7559e75b1c3214308b9b0a709e075d0f5fcc73. 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/GBF077441124.
Maria Stuarda / Act 1: Il tal giorno di contento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219b4c3e1260776fedacfe77fc70cbc566d0938c36808f30c13d624e37b58053. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBF077441104.
Maria Stuarda / Act 3: "D'una sorella, o barbara"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bd5b2c0ddcee1adc1f157b8a217503a674b197389259ba99e2fed1d1703398. 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/GBF077441125.
Maria Stuarda / Act 1: Ah! dal ciel discenda un raggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03baa61a7fbc968a0fc11a713e0e2e67e365e9bb1154842db3b58e99a42e709. 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/GBF077441105.
Maria Stuarda / Act 3: Vanne, indegno; t'appare nel volto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c308343311b065e198967181305806cca34e7bc4ed1e5d369b04ffc2ffc597. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBF077441126.
Maria Stuarda / Act 1: "Sei tu confuso?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f265ff312351b44d56cc2a2374f4c361ff8e46fc9aaa6313e8e9df3bc68042a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBF077441109.
Maria Stuarda / Act 1: Sul crin la rivale la man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200a53c7bb3400c066a7e3e0f9c90edc659eeda51648da73aa6f76882e81f434. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBF077441111.
Maria Stuarda / Act 2: "Deh! l'accogli" - "Morta al mondo, e morta al trono"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf91434ba3e21abfe398ed5d60794b9ea2d7c480ec3b7c6ec8e109fc7b8de2b5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBF077441120.
Maria Stuarda / Act 2: "Va, preparati, furente"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0343c226ee60b5da9b940088924eecec41cfa5c6ec5d70bb2079a94b3d29c8c4. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBF077441121.
Esclarmonde / Act 1: Esprits de l'air! Esprits de onde!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2580eade0a15ca66f711dbee05a576beb16a999c576af73600e8ae973bb74c. 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/GBF077540907.
Les Huguenots / Act 2: O beau pays de la Touraine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3147c65d2561dfec6f2d2a138042a27ad49cbfb017054161ecd9d9e01585f8ae. 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/GBF076940815.
Les Huguenots / Act 1: De ces lieux enchanteurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2bf8e8a68bbfe9c49b464913f2ab78bd242c6f3601d15a0d810a33f62b91df. 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/GBF076940803.
Les Huguenots / Act 1: Non loin des vieiles tours...Plus blanche que la
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a290407deb1a5be34a4d49193a3e4f07b49d629b32b0bd493f2dd60749372d. 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/GBF076940807.
Les Huguenots / Act 2: Par l'honneur, par le nom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e867e8f0e5fa04605ec7c2058895d0866aa57ebe48a234807d088463552b0a3. 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/GBF076940822.
Les Huguenots / Act 2: Et maintenant je dois offrir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895ab4f04302982ecdef97b0b941ba4d58112596f06618c55c297ec75633b8ce. 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/GBF076940823.
Les Huguenots / Act 5: Par le fer et par l'incendie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f95facc9eba33e2719f0e02254dfd243fd05e5099006aa87a987dea5e227fe6. 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/GBF076940847.
Les Huguenots / Act 2: Madame! ... Allons, toujours le page!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c63cb9953052e71c70009c63a3b96203e5b4bbd16172cd4f2f195a5ad75038. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBF076940821.
Les Huguenots / Act 1: En ce chateau ... Nobles seigneurs, salut!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47fc31b5d4b3eda3950f3531521bbf1b9937e9a48a48b11875013fcee767054. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBF076940813.
Les Huguenots / Act 1: Trop de mérite aussi quelquefois importune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70adfe10f639ec0014dc5efbdb8be8a979d7861195ad627d1c8a46be1238a32d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBF076940814.
Rigoletto / Act 3: "Bella figlia dell'amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e64a268db4871cdfef5cf21fc866165cd487ee02d75d2cce642a329837e314. 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/GBF077130141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cfb2d58af2a571d53cef321a23c7e4d7c66362e29f642761fed6b69623030. 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/GBF077114290.
Les Contes d'Hoffmann / Act 2: "Belle nuit, ô nuit d'amour"
Opera Arias - Nessun Dorma - Casta Diva - O Mio Babbino Caro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f31efd0c2bb7e0d4e54cddeb6192001b07c58cebf3c3cb68034c88b9a93c97. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GBF077110650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e64a268db4871cdfef5cf21fc866165cd487ee02d75d2cce642a329837e314. 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/GBF077130141.
Flower Duet - The World's Most Beautiful Duets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f31efd0c2bb7e0d4e54cddeb6192001b07c58cebf3c3cb68034c88b9a93c97. 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/GBF077110650.
Rigoletto / Act 3: "Un dì, se ben rammentomi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b27f2baed8a1ddba0fb205afde7034d2079f225e546b0ba5df252b15a56c83b. 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/GBF077130125.
Chi mi frena in tal momento (Lucia di Lammermoor)
Orchestra of the Royal Opera House, Covent Garden
Best of Opera - Die 50 größten Opern-Arien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bd55dcb6bee7ba5ddbd12809af1fb632ebbd2f18e99998093427a3efa01d19. 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/GBF077130521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f31efd0c2bb7e0d4e54cddeb6192001b07c58cebf3c3cb68034c88b9a93c97. 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/GBF077110650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92cfb2d58af2a571d53cef321a23c7e4d7c66362e29f642761fed6b69623030. 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/GBF077114290.
Rigoletto, Act III: "Bella figlia dell'amore"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e64a268db4871cdfef5cf21fc866165cd487ee02d75d2cce642a329837e314. 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/GBF077130141.