Nicola (or Niccolò) Antonio Giacinto Porpora (17 August 16863 March 1768) was an Italian composer and teacher of singing of the Baroque era, whose most famous singing students were the castrati Farine
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 0xd5ac78d6d7481dc2d80e17704de720e25aecc2f25ca88f91b22c24c1cee734f9. 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/333defc3-ae29-411b-a4d6-9631564f80cb.json and https://artists.proofprofile.net/proofs/artist/333defc3-ae29-411b-a4d6-9631564f80cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xf3ffb30b100971dd5d000a84d23612ce71f83f80553cc880c5a68a7e8dc34d81. 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/GBF071700210.
Il nascimento dell’Aurora: “Aure andate e baciate”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d298dd261859a55dbbeaf4d88e0cd49ee12d2ce9043c860f1ef39b110d383a. 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/GBF071700220.
San Sigismondo, re di Borgogna: “Aure voi de’ miei sospiri”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38ed8fcc3122a6441d0caa16c2ec4bb4294c24d47ec2bbfc5a6a71c2b366c92. 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/GBF071700230.
Tito Manlio, RV 738 / Act 1: "Di verde ulivo"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf274ec59eeb6ab48619d469304438b3f3d48a88eaa08fabf3fc7de3673326bf9. 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/GBF071700240.
Ode for Saint Cecilia's Day, HWV76: "What Passion Cannot Music Raise and Quell"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316d34a1fb8a2f4749bad6a0f347b20df2b230653c9daf9a678d0286e20902fd. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/GBF071700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8305fc819975664892eb50f2e19e1ef7352567438fffc304729422c123dc4731. 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/GBF071700260.
Arianna in Creta: “Son qual stanco pellegrino”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9a4030ee9cb082739dac2606750955f9dc3c43f94e6b6fa2e36a7babc87449. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700270.
Gli orti esperidi: “Giusto Amor tu che m’accendi”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421a4f48c7434b123d4e7b4fc059aae1f2c7a7751950ecf7a2f683e58f28c19f. 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/GBF071700280.
Cello Concerto in D Major Op. 34: 1. Allegro e con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c3abf448bad5eeb7b1fb07d80e139e4e58006e3cdafd4f9501155258aef0f3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700291.
Cello Concerto in D Major Op. 34: 2. Andante lentarello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181ddfd6e2c3fcaef58b9cf4d854886634f83ed2b7713b52ecd1f728123cf8b3. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071700292.
Cello Concerto in D Major Op. 34: 3. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75eb782fbb5e5681057dbfa71e705a67e77c5c305f771f9b1065f8f4789f18f. 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/GBF071700293.
Ezio, Act I Scene IX: Se tu la reggi al volo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a052f471c6d0ee178f864c0ef746fb3ab37935033ba3ada1ea15a38c4a989fc. 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/FRZ131337010.
Semiramide riconosciuta, Act I Scene IV: Vorrei spiegar l'affanno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21629c0d075b3931a939ce2fbbe03bbbfa103156cf368a3ce0df1b412134cb38. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/FRZ131337020.
Didone abbandonata, Act III Scene XIII: Già si desta la tempesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf843a2c378ba4ea11afd548014baf826350def54ef4f3ce23f4d931cf44352cc. 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/FRZ131337030.
Meride e Selinunte, Act II Scene XIII: Torbido intorno al core
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a438bad359ffadb00a690f844a771143efad91020a5fa2d2458431840035f62. 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/FRZ131337040.
Semiramide riconosciuta, Act II Scene VI: Il pastor se torna aprile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4f12b6b9fe822a0e24dd6609730d9b2f6bc221d574e07b8ea2b16f94114065. 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/FRZ131337050.
Il verbo in carne, oratorio per la nascita di Gesù: Distillatevi o cieli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2476b27159a1e73130d8e3a9246f5816c7d67c570e5b57eebe02c9cae1c2b6. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FRZ131337060.
Meride e Selinunte, Act III Scene III: Con alma intrepida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7d946e6bf8016ccea3e8f7166359b8bc9a7ee1f0e03adc285b81600fd6871f. 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/FRZ131337070.
Il ritiro, cantata a voce sola con stromenti: A voi ritorno campagne amene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff24951a2778a43c6ed7e7c94adc46e129a4d91d9e104e64f69e19efcb9b637. 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/FRZ131337080.
Polifemo, Act II Scene V: Nell'attendere il mio bene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543a6f178fb188d96c30bd6212d23dcf37ac0dd344c17ce215c6fff3cf0a720a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FRZ131337090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb86fa774422506baf1b9cafa0ab83d92430fbc61c15a0409dba6f5865ca3c77. 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/FRZ131337100.
Carlo il Calvo, Act II Scene XIV: Spesso di nubi cinto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde50bf12dc32988512a23cbd721c1bff759fc63f0bda0b4450617c6d7aafb59. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ131337110.
Vulcano, cantata a voce sola con violini: Non lasciar chi t'ama tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0ad6ad2c9c1712d4b368dc265eb4c001510ddcaf8304f7f978397c7b62fbbc. 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/FRZ131337120.
Concertos for the Kingdom of the Two Sicilies: Scarlatti, Pergolesi, Porpora & Durante
Sinfonia di concerto grosso No. 12 in C Minor "La geniale", R. 533/12: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fe5d1f5ec6922bbad858b604e3c0bb9980a1f8dad7ca831593ba4296540df5. 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/GBAJY8902501.
Sinfonia di concerto grosso No. 12 in C Minor "La geniale", R. 533/12: II. Andante giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a02c7debb7dac7b63f1f2f112be2d752a399ab1997135a8dea25744f7169cf9. 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/GBAJY8902502.
Concerto grosso No. 6 in E Major: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0a6e863704b823172cf8c2f7494cb01b7bbddb14d08a33824f1587759e919e. 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/GBAJY8902505.
Concerto grosso No. 6 in E Major: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1714507b46ba3aa0245d12c73dfa530d9c2f20b1a21715dbbdb837f76fde6f51. 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/GBAJY8902506.
Concerto grosso No. 6 in E Major: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d6b34a9c26cfb65b15318ee7eef3e732359d53304f7b0befe930194c8f641f. 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/GBAJY8902507.
Concerto per quartetto No. 1 in F Minor: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d79bf70da3d397cefba62c3cdf93a3267c9430cc82fddaacf61b486b941d8a9. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBAJY8902520.
Porpora: Mass a 4 in D Major, Duetti latini No. 2 per la Passione di Gesu Cristo & Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36624a23975b179a65edbf13cc062130d5390af7f4b256f5799cfa71934e3c35. 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/GBBBA0941210.
Germanico in Germania: Parto ti lascio, o cara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e079a765699b2ca93a195aaebbc23eaf85d992e5fe3688664784dfca603b699. 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/GBBBA0941260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b6eac8f0cab45efb46c45d915cdbab4091812bd13cced1cd3909b5f954cc7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our 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/USSM11201488.
La festa d'Imeneo: Vaghi amori, grazie amate (Ed. Sanderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c70ba41e8f1ecbacf4b89e25e7816fe9930f20c9e1957e19f7a8116881169f. 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/GBF071900590.
Polifemo: Nell' attendere mio bene (Ed. Sanderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aebaf6b7b8884201e52985cf41a1b520be7c78f36f58c08956469004b0cdf31. 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/GBF071900580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230efedc91dc3e872e0831cdc98012c420dfbc1e27c00252321198414f17beaa. 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/GBBBA0941270.
Porpora: Arianna e Teseo: "Mira in cielo" (Alceste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e63425b63bb2289a45218687cc1b23f74caa04f89c8d5ef72c07f2e11da854. 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/GBAYC1302153.
Polifemo: Lontan dal solo e caro… Lusingato dalla speme (Ed. Sanderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0384491fae128ec15e9131d447984a4eb0676acf6d4f24cf458d1220c76fd46e. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBF071900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eac356352c8859f8ff8c1cbcf795996820d8da7adaf2b3de8450a91e9031c6. 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/GBF071900680.
Porpora: Semiramide riconosciuta, Act 2: "Se pietoso il tuo labbro" (Mirteo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af9f05486ed5d233b4f663cba08d3dda16f4e63e2106fd9e56636899b88c527. 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/GBAYC1302145.
Semiramide regina dell'Assiria: Come nave in ria tempesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee90ce00236675223bbcc91343d3f5e1eb875d485bbb94bf52cb4a8e1d69007. 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/GBF071900630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80640fe07480eb8a2caff511ff5d80180b0c9bde598c62bc355579c0c320e66. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBBBA0941290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1ed8f08f9d68404b738e473e250127fc25cbaca7540a85d863b6e9e8a721a. 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/GBBBA0941250.
Cello Concerto in G Major, INP 18: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f79bc1b040124c0643709cd5c2adc9c27a3910e293e74407780127a01b2cac. 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/FROV62127406.
Porpora: Polifemo, Act 2: "Placidetti zeffiretti" (Galatea, Polifemo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f14c786232209e707966b850cddbbfbc4c59a8fd0bee05a1b7ccf7287ef378e. 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/GBAYC1302148.
Orfeo: Aria : "Dall'amor più sventurato"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e353107631d120359d71cf5e952c299addddf291f64b79257d4830f959ab91. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/FRZ140201010.