Alfred Poell (18 March 1900 – 30 January 1968) was an Austrian operatic baritone. Poell was born in Linz, Austria and studied medicine at the University of Innsbruck and obtained his doctorate there.
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 0x9b7dfaea2afaaec804eced88ecdd94babe64552f7334911358984c4f4f17963a. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c7b1883-5144-42d3-b1e8-cda69c4461b6.json and https://artists.proofprofile.net/proofs/artist/6c7b1883-5144-42d3-b1e8-cda69c4461b6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Le nozze di Figaro / The Marriage of Figaro
Le nozze di Figaro / The Marriage of Figaro: Ouverture
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 0x4a4556ee4578ac863f7c5e4a140b0d7dfbe3e5b06d8b0014b22527cb544156fa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142101 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Duettino: Cinque ... Dieci ... Venti ... Trenta …Cosa stai misurando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676ee19121aa567a52cb90f66601ea8fb27a08877e345efa347c506514692fc1. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142102 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Duettino: Se a caso Madama la notte ti chiama …Or bene, ascolta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed47f0265b4d22ee358959cbdcceeea26b76701add1fe5cd3d4cce096807d63a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142103 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Bravo, Signor Padrone … Cavatina. Se vuol ballare … Ed aspettaste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb251e5c7d8df7dbe46a420c0af875a57b8072ee905eb9c09c0d8a711a19fb9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142104 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Aria. La vendetta …Tutto ancor non ho perso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7668a3cd70cdd1c228fd9c93e1d76b013841448adf6e071baaaba40f7c82fd41. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142105 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Duettino: Via, resti servita … Va là, vecchia pedante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306df10d0a580cef39987e234dbb1d3f06f933dd29ea7df8ac52ecb493c4bc42. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142106 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Aria. Non so più … Ah, son perduto!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8712ed6a1c417e4024c7a24623aa7617744b4ab1da02fd0120f32f9a78ebe7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142107 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Terzetto. Cosa sento! ... Murray Dickie (tenor), in traccia tosto… Giovani liete…Evviva!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5dab97d9e7c04cac8b3222e9be24f61280c138d51fb34603e00e4c9380d5ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142108 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Aria. Non più andrai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a366d35e141225d4c3238503f79a8765fa912c3c6ad158afbf5d6bd802e2ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142109 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Cavatina; Porgi amor … Vieni, cara Susanna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9648717c820dc88ee8de4f2b435708c0125c51d95f7c8322659c11e17e7b44f0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142110 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Arietta. Voi che sapete … Bravo, che bella voce!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf96faaf3720daf0eaadc99af218dea5c70d2b3797ffd04eef77a4896f11ca84. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142111 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Signori, di fuori … Ah! Signor ... Signor!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f7e2682d1b3f2f619a3aef7adb1418922f3bcf9b9cc76269a6b730a3a0d7b3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142118 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Sestetto: Riconosci in questo amplesso …. Eccovi, o caro amico...Andiamo, andiam, bel paggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77aa22ffd9ca723aef6f926ba6ecb903f3340229702a3157e5b9dbc031de233d. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142123 — a six-check JSON result.
Le nozze di Figaro / The Marriage of Figaro: Recitativo ed Aria Tutto è disposto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe014bd936503c0f2251f9763f752fed715142178fd2b7ab65f303b79f256d4bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142130 — a six-check JSON result.
Pelléas et Mélisande live 1962 Herbert von Karajan
J.S. Bach: Mass in B Minor, BWV 232 (Remastered 2023)
Le nozze di Figaro, K.492 / Act 2: "Tutto è come io lasciai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63849e1d61aaf2400ebc376048570b381b3336d6108237144d607faa4925f6d4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540216 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 4: "L'ho perduta...Barbarina, cos'hai?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd4dde4c1c8c273fa7b523b987804e2f8fae90ab14c9761f5f022a9b715e603. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540227 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde63898bdaafa2afeeeb2bf97825867b9a097bad23c65977e925bdcfa072b067. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540201 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Esci, ormai, garzon malnato...Susanna!... Signore!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d357724ab1d7d8c62fad29d6d6f1e7468465557c628bbdc7890d8a1ded9bc1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540217 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Cinque... deci... venti...Cosa stai misurando"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb137abcdc532d9abf71ac6ab25ef8edf9af084846276d525938addd32efca768. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540202 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Signore, di fuori...Ah! signore... signor!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbb2e0db61886d309c123b8bf754bcc684383552898a0d6449e8660f4494d17. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540218 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Se a caso Madama la notte ti chiama"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f26fea694bfe164d3e857a903d9028ba2541e8d3149bf61c6c00d47e4612c9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540203 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Voi signor, che giusto siete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f402730bbe8a1740bac2218f9c0f4edc8ea618d9b8aa54dcfa3b0edf330fad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540219 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 4: "Tutto è disposto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e78c8263bee2758032e42314f6aeac1ff8d23d05fbd0f123e926b264fd23fc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540230 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Bravo, signor padrone...Se vuol ballare...Ed aspettaste"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c38d75d64d9dbfa71bc169ee5db74ace97462d618e2990dc8728fb941bf31be. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540204 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Che imbarazzo è mai questo...Via, fatti core"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1678e83478f7e31638df593355c14b89dca6761b18431d1cd003a89156b90f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540220 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "La vendetta...Tutto ancor non ho perso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bf81e8ae52a8ecb534dd1d4906bf99395133f4d29c9c480e288ec19ab406d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540205 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Crudel! perché finora...E perché fosti meco"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc43c64a005e5e62388a496ab05120016b4a8885f0d1ab41ea219abcf722457d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540221 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 1: "Via resti servita...Va là, vecchia pedante"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa095daf1a66840cfa53a09ea221f2d7444d87cb5322469d98536e55792f82fb0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540206 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Hai già vinta la causa!...Vedrò mentr'io sospiro"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323df7abd2b77eba8f208618b1a807a333e4b40ee8d1a91454785d7183a9af41. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540222 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 4: "Gente, gente, all'armi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7052eae6e844406d430438778b754b9fa3a73076d82806986b7488262e2189ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540233 — a six-check JSON result.
Le nozze di Figaro, K. 492 / Act 1: "Non so più...Ah, son perduto!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f39768135b7f697e8050066c66aae6fabda0e569989901a580a92efde884cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540207 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Riconosci in questo amplesso...Eccovi, o caro amico...Andiamo, andiam, bel paggio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85528ad8b2aea2107184a6aecafd538584fdbaa5139009cb14e97ea170b9779e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540223 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "E Susanna non vien...Dove sono i biei momenti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9497300b8ac917bafe7042e6b7308cbf1ad659fd98a0d313fd216ec233f8486. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540224 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: No. 10, Non più andrai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260fa3f04ecd29f81d22ed330e2b19cda6943d2ae7d8b19c4b1ab56db7f11565. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540209 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Cosa mi narri!...Che soave zeffiretto...Piegato è"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fd7c7c2115cf576d844a2f9ba1861da3bd259cef0b3d9d9708ec33823d5952. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540225 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Porgi amor...Vieni, cara Susanna"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035fcce426615337ffe02ae619f934890202c0da2227f12965ce8ed4222d477b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540210 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Voi che sapete...Bravo! che bella voce!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82554e83908ae799fb7242ee52662dcb2f99005f5f0c22b179032df696f5a60. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540211 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 3: "Ecco la marcia...Eh, già, solita usanza"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeb9daefe6d3b7b1bf336905dad43e0811a5414946c00b3a305b615998709d8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540226 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Venite! Inginocchiatevi...Quante buffonerie!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386a4b2ada19acfc7da5882eb457263ed928ce7c28ab1fede64e3477b75c1d27. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540212 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Che novità!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257e6def1e085610954dbde6f76a788255f623e5f5ce6ef8f1ae6e51a755f3e1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540213 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Susanna, or via, sortite...Dunque, voi non aprite"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c43dec95a9f3ab7438dd53a63b23f63fc5c38a8346a3d0c7d0a4e3e09d98f1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540214 — a six-check JSON result.
Le nozze di Figaro, K.492 / Act 2: "Aprite, presto, aprite...O guarda il demonietto!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6abb83d3275d18451df0464766d0b94b43127be02acdf31d3f33f91aca407f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075540215 — a six-check JSON result.
Mozart: Don Giovanni, K. 527 (Remastered 2022) [Live]
Die Sänger der Wiener Staatsoper zur Wiedereröffnung des Hauses
Lieder eines fahrenden Gesellen - Des Knaben Wunderhorn
Der Tamboursg´sell (Des Knaben Wunderhorn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026497a9a98343e1fc52ff8b68f96d7e45c222ce26b2b082ea02367967844fd1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130253612 — a six-check JSON result.
Gottes Zeit ist die allerbeste Zeit, BWV 106 (Actus Tragicus) – Widerstehe doch der Sünde, BWV 54
Classical Chorus: Beethoven, Vivaldi & Purcell
Fidelio, Op. 72: XI. Jetzt, Alter (Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81453bd9117d0011052157ae973c4f51b3b9ddbf78b5d086e95ea08d82fb829. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0700293 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eed6f9e1c98ac28655764b0f236a042231d1c82d7cf8fd6d09cf421fea66f4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004711 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62392ccdd078a2ac907170cab3c7d8c8a5f9835c6b49932290c178f66eef9ea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004657 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Weia! Waga! Woge, du Welle" (Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9782b9e740248ed57cb9240e81d234eba70fe7cf350b2a6d1ab4eba9ff040b3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004659 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Hehe! Ihr Nicker!" (Alberich, Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07726c3ad8d65240c9ffd0719237c47004c578e4cb8adcffb29a51767e1a272. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004660 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Garstig glatter glitschiger Glimmer!" (Alberich, Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405f375743e9edd027f2a138dae8f2252079cecdc09f47cd83c8dd31ec877c1b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004661 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Lugt, Schwestern!" (Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bf423af313fa533356bb386605ad99f8b2e023a6d05687ea3adc58b1ff56ae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004662 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Was ist's, ihr Glatten" (Alberich, Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70930b8439e12ef0a15cb911f401090472799616e114f4029527bbde567ac3cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004663 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Der Welt Erbe" (Alberich, Woglinde, Wellgunde, Floßhilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ffff0e1a4d4101810f66e0971e01e1b6cd97192b2802e021bdbe4093f0179a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004664 — a six-check JSON result.
Wagner: Das Rheingold, Scene 1: "Bangt euch noch nicht?" (Alberich, Woglinde, Floßhilde, Wellgunde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f32f1854519caa8e7782f36c46f59ee7c744cb642074718d7bc28de8325ec9. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004665 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Wotan! Gemahl! erwache!" (Wotan, Fricka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab9989a715d5acf5e19457e8a4a431c91ef9ede12cdd6c7f734762bab2b504e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004667 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Um des Gatten Treue besorgt" (Fricka, Wotan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6582f5d38e8ad01a3b960efb15f3a1c660f0d034857354ce901c36e326fc77a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004668 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "So schirme sie jetzt" (Fricka, Freia, Wotan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b952d30c617f43882680d4e6aff637b8af73ab3f4f31922bf4eb577157dbc4e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004669 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Sanft schloß Schlaf dein Aug'" (Fasolt, Wotan, Fafner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef017aa6d77d05027abb65bc4945ce319cbf6af866e469950d9270b48a1f24b7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004670 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Lichtsohn du, leicht gefügler" (Fasolt, Wotan, Fafner, Freia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ef5f87fed41f5991ff9863b179dcd68d9683ed9f41b0834f41a4d4cd8a3287. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004671 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Endlich Loge!" (Wotan, Loge, Fricka, Froh, Donner, Fafner, Fasolt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b315b5531ad9c409211e418392cbf81120a350aa89f8d59f7168085e943c2e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004673 — a six-check JSON result.
Wagner: Das Rheingold, Scene 2: "Immer ist Undank Loges Lohn!" (Loge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02bc0273a61154d81a7f1526cec2745a9d5e9e29cc0f3d8d3558982665fc43f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9004674 — a six-check JSON result.
Johann Sebastian Bach : Kantaten BWV 32 &76
J. Strauss II: Der Zigeunerbaron [Recorded 1955]
J. Strauss II: Der Zigeunerbaron (The Gypsy Baron) [Recorded 1955]
Der Freischütz, Act I: Mein Sohn, nur Mut
Westdeutschen Rundfunk Sinfonieorchester
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b3ca63ffacc87db4448dfddace116addce5c91ee8d9901a90e718792d1c96. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560732952 — a six-check JSON result.
Beethoven: Kantate Woo 87 & Brahms: Alt-Rhapsodie Op. 53
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede9b5dbf1667562ecb18603f34d08dba1f085ca89a3c844849e15cf05094df7. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301801 — a six-check JSON result.
Viktoria, der Meister soll Leben (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c76118ba0684f721a5a0271c1aeaed112677f59fed96823b5c6fcbbc594da1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301802 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689a8b7361d5df7f3b30ab0c735eb4128e79278539c1dd47b1853a7ebf0f2f5b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301803 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7f9e12a136dff8b1632b94aa2baa80de7f4b4115f75228819653466fff9aec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301804 — a six-check JSON result.
Nein, länger trag ich nicht die Qualen (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ff949daedb40fc483b5031844c1d5d2ac1ab5eb575bbca2156bea83fc984c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301805 — a six-check JSON result.
Hier im ird`schen Jammertal (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0719ade0bc82672e74814e48ee859521a7e203c600d5f529effdabc2078e7c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301806 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd927ae4c55f044a81d570e52afe2001e5f96bfac83313291445a6d59b04da2b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301808 — a six-check JSON result.
Kommt ein schlanker Bursch gegangen (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b8ab022e3e858447f9d04ade6601b475b8b90e84ee1251734e83a5d2dbd16c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301809 — a six-check JSON result.
Milch des Mondes fiel aufs Kraut (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3165264300edd24be473bb5a17d80d5e92e161b9348679b324e1a3ade74a4d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301812 — a six-check JSON result.
Und ob die Wolke sie verhülle (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0b2b80709d13203e78962b91ef3af767ea635fa962d625a9e8e30609a31064. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301814 — a six-check JSON result.
Wir winden dir den Jungfernkranz (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4e7911b46477b693b8250ee51557ab034e3ba9cc4d42185f3215714ed3af27. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301816 — a six-check JSON result.
Was gleicht wohl auf Erden (Der Freischütz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d70746bb8b5164d24a95b9efe1cdd9074df553fda62dbfa5a22a9964b5f99d2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATP130301817 — a six-check JSON result.
Mahler: Early Songs From Des Knaben Wunderhorn; Last Songs From Ruckert Lieder; Songs Of Youth
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Le nozze di Figaro, K. 492, Act I: "Cique...dieci...venti...trenta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b4c49ebe122ff3d6664bc3a89f14d7f0f391b7c4aa20131cad039fd0f2472c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456391 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Se a caso madama"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8083f424eb56b3573e9b6686af963876539890d1044c4713ed18d4ebeaed58. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456392 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Bravo, signor padrone"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af580c860d588707e6fb22932485312e0eb9b794e42bbee33559cb56c645a9b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456393 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "La vendetta"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0deabbbf2a0e6e585cfcdfddae4999cb331d04d1e75898af2998353247afc00. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456394 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Via, resti servita"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7082b8726f6ee6e7d3b26534f6736ef096364d7240c885e5e945cda8be1cd38. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456395 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "No so piú cosa son"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca4d1aa72d8d5539866de51b71d2223d63ecdc0b19beee8457c03ab76f2cf25. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456396 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Cosa sento!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f5d22b575fe3619bd33a02d1f2a5060c923c40beed6c3b527758bd6b6bf4ee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456397 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Giovani liete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20582ff18cd44038893683ec5e09b6e70153039510891355f2e930716b7155b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456398 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act I: "Non piú andrai"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926c8da39a0ce80a6dff03d4420567de1b68a40de9c65513f53e41cb209accfa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456399 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Porgi amor"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a0ea8c3189205f8d65cbd71a1580cf3afc08db84c9639388d24a21220f77ac. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456400 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Voi che sapete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6fdfcc6d61306d25f8c7b12775267f2476482572d893c69813ce6d382e45cb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456401 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Venite, inginocchiatevi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf989313a60be4b75a3fd2899c3a47c0e8622690694f456a5058f870a6a7f8f69. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456402 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Susana, or via, sortite"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c7baac97ff6cdaf47291178a157334934e9dcda4173fe01d70a9feca51901e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456403 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Aprite, presto aprite"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7956080766ffed853dc3ca6003386fe111882da8b6342f1efa53a362a919c93f. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456404 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Esci omai, garzon malnato"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bfca6dcce691876eb4e64a48942e041ad5e75adc98fbc92f191196e6b4fe13. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456405 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Signor, di fuori"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e4084bb77e182b3ec1480f012aa530a32a4e7b976e24d0ca59de3680edbfaf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456406 — a six-check JSON result.
Le nozze di Figaro, K. 492, Act II: "Voi signor, che giusto siete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e90d2e0a0f6215a428c42b26da8f71d768d79cfda9038fc07fe54cdef16d28. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41456407 — a six-check JSON result.
Haydn: L'anima del filosofo ossia Orfeo ed Euridice