Alessio De Paolis (9 March 1893 – 5 March 1964) was an Italian operatic tenor who specialized in character roles. He was a prominent member of the Metropolitan Opera in New York City where he sang fro
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 0x2522431e61faf5183bb1ed8548eece5ca9a4508bb161b862945e6dfbe470153b. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a608801-b3d1-4a69-9d95-4a7aa3265d60.json and https://artists.proofprofile.net/proofs/artist/7a608801-b3d1-4a69-9d95-4a7aa3265d60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Puccini: La bohème & Highlights from Tosca (Live)
Franco Corelli: Power and Beauty, Vol. 6 (1956-1961)
Verdi: La forza del destino [Recorded 1956]
Richard Strauss: Der Rosenkavalier (Live)
Richard Strauss: Der Rosenkavalier, Op. 59, TrV 227 (Live Recordings 1946)
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 0x66028284f0a326439209b1dcda127b85424631f38ffac7123bef2b39ba7b8986. 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/ATP130701014.
Puccini: Les opéras - La discothèque idéale de Diapason, Vol. 10
Jussi Bjorling in Two Puccini Operas (1948, 1956)
Mozart: Le Nozze di Figaro (The Marriage of Figaro), K. 492
Mozart: Le nozze di Figaro (Live Recordings 1949)
Orchestra and Chorus of Teatro dell'Opera di Roma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2708e354dc2ccfb66d8e3dbe63503112e1f311602f9bd8fbd0b5c25430ba6d5a. 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/USX761302115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f7d2b7667064151265c287388ce1f6797ca2e9fc88cc1e84e3f4f7f14bb29f. 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/USX761302102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a76c7c29cc7e81690b92c2fdcf917946ad3b5999ba4f0ff9d6ea5d2152f1ca9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our 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/USX761302116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893f6375ed4edc86037e336fc750560059d4611dcedfbf089bd22f33fbc74e7e. 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/USX761302117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde31236f9ed96623fafa57e3cff87097e66378d22ed03ef292bdf110c60cf5f. 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/USX761302104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877f236f2871eca0548ee286fab016a15cd24bfe6ddf0011b9869b991b3efd77. 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/USX761302106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89114d3ef60eb8279ad9e27bdbd72afe6a18e794a5428d598f00d788c2cf7e66. 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/USX761302120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe523db51ec97cf19fe44935111cb02dfd0012de742d6f8ff1831f5c482eefd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USX761302107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5db95876017c3e68fb7d34c657fea9b0f02d295701738aecbf6be6d9e117a0. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USX761302122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc08acb12a4023499202e14d8d75d7c083d39ce4881b7ebc4031e0257ee1d473. 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/USX761302109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97df3aa19836ee1b274440c0eadd4ff8fdeecc1e3c4bc1efd4609ba404992728. 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/USX761302123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079b5c8bdb6e8d8e941c251fafda9dd563d4d1805efb5c15f3c11c29dc227435. 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/USX761302110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbb52b53be2f15107a3cc85c8bbb24a516a0e4cea9dd62be2bd8783fe23379e. 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/USX761302112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667c38a0587db01ca457fa5045b3c79ae8781c9600459fe3d49e2607a04f2c6f. 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/USX761302126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce15e535f09e5f9b02b6ebd00512d7891af558ad472b1d2fa9b0f2090e30f573. 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/USX761302114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6895e8d0af3a6a672f197deff5c74a36a9a08a53f0400d70cac01842bf97fe2b. 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/USX761302128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5902376d7c719a3249a6f0d686b42cef7494a14cd008efff1c276c0d55e4077. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761302118.
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 0x13314e4190639181cf7e88618d9eee30e4f9651415299fd012e8bb378f533e30. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX761302113.
The Best Of Carmen: The Opera Masters Series
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f286b662004f7354178d8070b0620c9b43651a3d78df68690eeb408a3277024. 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/GBTYZ1002261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986b4a57b063ed089d009b113a997b20e5fc79e302ce9954ae6ac101e67f13a9. 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/GBTYZ1001796.
Flower Song: La fleur que tu m'avais jetee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda86eb8b1edf4e815438c756b4253dd31e088874df7399412acbd42671d34a27. 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/GBTYZ1001795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08e8c1e82fa2af673c1b62a0fbed129501e4accf20cb660d680f3abdd7eb8d8. 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/GBTYZ1002254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43d1a6e467b568b8e53da9c04dec779a2199deef612a7349a5aea09d5133d23. 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/GBTYZ1002365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad3d1a816069de41d7824085ba253495542e96a753a2fa64e4ebd5c68e02cf2. 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/GBTYZ1002255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7472983be797082106d353ee620054eda44c99f5d041379d9e5b7a02a33342c. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), registered by our 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/GBTYZ1002367.
Offenbach: Les Contes d'Hoffmann (Metropolitan Opera)
Wolfgang Amadeus Mozart: Le Nozze di Figaro. Drama Giocoso in Quattro Atti (Live Recording CD1)
Wagner: Die Meistersinger von Nürnberg (The Mastersingers of Nuremberg), WWV 96 [Recorded 1953]