right|thumb|250px|Don Perosi (c. 1900). Monsignor Lorenzo Perosi (21 December 1872 – 12 October 1956) was an Italian composer of sacred music and the only member of the Giovane Scuola who did not wri
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 0x3a5f2cc59ee68e4a83eb08b9b0805151ef8f5681654882cb7dc2f026d24c8881. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/940eb754-4bf1-4e68-ba08-f2737c321493.json and https://artists.proofprofile.net/proofs/artist/940eb754-4bf1-4e68-ba08-f2737c321493.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Passione di Cristo secondo San Marco, La Cena del Signore: "Vespere autem facto" (Cristo)
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 0x6dc6139f563329473d674f89a0da251994858ae4677e5212c43a2c102b9d5469. 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/ITDF61500037.
La Passione di Cristo secondo San Marco, La Cena del Signore: "Unus ex duodecim" (Cristo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72d9a12dafd96c9c8d03555d15fe83e5491d4231c4e73f78688a95c7ca41355. 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/ITDF61500038.
La Passione di Cristo secondo San Marco, L'orazione al monte: "Et cum processisset" (Cristo, Storico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fd42b4b558624146a7b1c779a5bf9cc7a512854ee985b1680073183e53f0f8. 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/ITDF61500027.
La Passione di Cristo secondo San Marco, La Cena del Signore: Preludio orchestrale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd188cdc4d1bca262bacf387204c89a0fe6a4ee2f21cadb936655a9baafe80b33. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDF61500030.
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
La Passione di Cristo secondo San Marco, La Cena del Signore: "Et manducantibus" (Cristo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864ba2ebfd2ad82e21fea97acff3e7b307136edd1d43bc24a0c68096444aedcd. 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/ITDF61500039.
La Passione di Cristo secondo San Marco, La Cena del Signore: Et hymno dicto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f86c49d3f872cd92559d9a7a97909e9a59a992bf5f34624110f066b43b6885. 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/ITDF61500024.
La Passione di Cristo secondo San Marco, L'orazione al monte: "Et iterum, Et reversus" (Storico, Cristo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44fc878bfb66f0f24a02b4f042ac469e9246972c86d1fd9c7dd326254980fde. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDF61500029.
La Passione di Cristo secondo San Marco, L'orazione al monte: "Et, adhuc eo loquente"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069edb01e2ab4e253660eaffc0e1fc29e95f048aa80fdaac6912596bcd720c90. 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/ITDF61500031.
Perosi: Le 7 parole di N.S. Gesù Cristo sulla croce (Live)
Perosi: Messe di Requiem & In patris memoriam
Perosi: Concerto per solo di violino & Concerto No. 2
Perosi: La risurrezione di Lazzaro (Live)
Perosi: In diebus tribulationis & Dormi, non piangere
Perosi: Missa pontificals & Messa a due voci dispari
Perosi: L'entrata di Cristo in Gerusalemme
Perosi: Adagio, Clarinet Concerto & Suite No. 6, "Milano"
Lorenzo Perosi: Missa Pontificalis - Missa Secunda Pontificalis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8620e53b40e118eacca69ae6cf297ff77ca5d4d6bab6728495635ce2ee2c72. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df8cafe643cc75be47b7898343e7701daf7e1cf0985f7c873e39009fc11f07. 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/ITGRR1900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddf5e3ec8febd0f40a880a5cc468c0edd5725019efad18af02c1bb2faa21923. 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/ITGRR1900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ba02a8dd1a9630607a90305f51c29a6d90665deea3b3c1f528b019717b1438. 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/ITGRR1900125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44617ad5d5007688871db00c01e114950c6586cf308bc1f0ba8c669c1f737d8c. 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/ITGRR1900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23a9448fbb92e361ce1d32215b95803c1ceaaf5d5f11c8e01ef66e2b39c655. 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/ITGRR1900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb7db277ff60b80167cf043cffa6e75236b176b5806cfdb070040ba54c7417c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704dd1c7811ebe2d040bfe63bfb161ee30467a1808acc5afacc0bee98914c935. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436dec945f4e72ba8fb170a26e189c3a529b75b1fd553801f9e1bd5b713d012a. 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/ITGRR1900124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25471593321b1d968831fcdf4e03db47f97a17791eb47fa3d88ca48e4bf41e85. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/ITGRR1900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d9d18120c6ce6b7599e323cd47661be4d7d9e1acdf451389a7fce3f04b7706. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39984b60906282b93f8a40ef3a234aa1845e1dfc4826f53eb5bbdce61b6367d0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3757ed1b1ecf8b1fa98f8974bde68a370f6d7f9f7fd45334d6f4ab7e149a0218. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ITGRR1900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafbad502a6852202ef539071d19b763cc7e5f0a1b20fda635d941487d16e01b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITGRR1900132.
Perosi: Missa Benedicamus Domino & Responsori per il S. Natale, Op. 14
Perosi: La passione di Cristo secondo San Marco
Perosi: Piano Quintets Nos. 3-4 & String Trios
Lorenzo Perosi: Missa pro Defunctis ("dei cardinali"), Mottetti
Perosi: Piano Quintet No. 1 in F Major, Piano Quintet No. 2 in D Minor & String Trio No. 2 in A Minor
Perosi: String Quartets Nos. 7, 8, & String Quintet No. 2
Perosi: String Trio in E-Flat Major, String Quartet Nos. 9 & 10, Quintet No. 3 & Elegia
Perosi: String Trio No. 1 - String Quartet No. 4 - Piano Quintet No. 1
Perosi: String Quartets Nos. 11 & 12, Piccola Sonata & Le cinque ore di Londra
Perosi: Quartetto N. 13, Quartetto N. 14 & Quintetto No. 4
Perosi: Piano Concerto in A Minor & Scherzo in A Major
Lorenzo Perosi: La Passione di Cristo Secondo San Marco
Introitus (Requiem aeternam) e Kyrie da MISSA PRO DEFUNCTIS a 4 voci pari