Jonathan Tetelman (born 1988) is an American operatic tenor who has established an international career, especially in Europe, in such roles as Alfredo in Giuseppe Verdi's La traviata, the title role
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 0x38d6dfc80287311be342232a3828d7bdfe22cba2d21a0e74cfec8254f08b0b99. 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/964f0b4c-2834-4929-873a-69e277405b55.json and https://artists.proofprofile.net/proofs/artist/964f0b4c-2834-4929-873a-69e277405b55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tosti: Non t'amo più (Transcr. for Tenor and Piano)
Non t'amo più (Transcr. for Tenor and Piano)
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 0xcdcb56168498d087ce3a5c6f01d106e84879fe4953f45d8b579dbb6f9ad66433. 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/DEN962401180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd16f0f7d82c7d3932e349c24ae62363538c9eb5241e45d776e2688b0a76abc0. 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/DEN962401150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a7d29ce111934027bfa695025ecc4cebb8cb2036daff601203bd4f1f09d7e3. 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/DEN962230801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533420b782ae969400647dae45688510af70ca1ff4dcaaea813515d7e1bb49d8. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEN962230802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b72bd557b629b499fec408b75c2d9e1c5850fb3a1b031383f9c1d04e429082. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962230803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2632cf67cdf40107c8d93304d8c750bef7ea671ce0daf7142b688d6cf3370562. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEN962230816.
Carmen, WD 31: La fleur que tu m'avais jetée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161c313027d0417d34eac4b8d02fbf326bb6507f257120d8a4cf77332766d121. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/DEN962230806.
Adriana Lecouvreur: La dolcissima effigie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4513d1c96d5d42469dff0955b5ef9cd5f6baa2e4644f52430af785bf78569f32. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEN962230808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff802148af297e8614d3bd4a62524d2049ace42b416c20190a3aa7687420e02. 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/DEN962230809.
La forza del destino: O tu che in seno agli angeli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b1616b1e7427786a083628cd46764dd59dfbf2b0e7517c71dac309bdb161bc. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEN962230810.
Andrea Chénier: Come un bel dì di maggio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04cd99ac7cad6ec5132570f2da4d8951f77f689f7f7c37dfe0c389c46c1fa94. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DEN962230811.
Francesca da Rimini, Op. 4: Paolo datemi pace!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aca6555012747edef70660acd75bd53d39efc13531e02eabbc5f52b52ff1e7. 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/DEN962230812.
Francesca da Rimini, Op. 4: Perché volete voi ch'io rinnovi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd644841b6dd47c1eb2c4e65e4f5741d8e9d5a3887b0a14d8202054aa3efddc6c. 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/DEN962230813.
Werther: Toute mon âme est là – Pourquoi me réveiller
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2eab8e7353763baa0f30d210da8c4c811ae0d18b6b45c9b0877f2e6a8de592. 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/DEN962230814.
Cavalleria rusticana: Mamma, quel vino è generoso (Addio alla madre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109a97b05133abb6eafa524c5b33e7ac0727a190048f9b9aa46de72a00097db4. 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/DEN962230815.
Madama Butterfly, SC 74: Addio fiorito asil
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8573e6a6e853cff05f821f2e4078f4f9ca472cdd232d77b3dca75d4315bb6c. 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/DEN962230804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab56aace0836685a7c56b9f4f6a0d5c3d8ba626bb72a1009561c47fe78ea22e. 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/DEN962230817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbebca82dd35d880e5622853f6c994bdb82e8616a07d3003b8639b8c598805c4. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DEN962230818.
Manon Lescaut, SC 64: Donna non vidi mai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b581898ac091981b1727ba781a447321c2a2cb7c90d35d004791b63366960d. 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/DEN962301720.