Rodney Gilfry is a leading American operatic baritone. After launching his career at Frankfurt Opera in 1987, Gilfry quickly established a reputation for stylish singing and acting. A renowned Mozart
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 0xb714a9d4f9925d06113850e7b7e13a0819d7fafd5ca893e9b5399fc3df66b922. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af1ead72-17fe-4e1d-8be9-c216b6803065.json and https://artists.proofprofile.net/proofs/artist/af1ead72-17fe-4e1d-8be9-c216b6803065.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Iphigénie en Tauride, Wq. 46, Act I: Grands dieux! Soyez-nous secourables
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 0xf1dfeab3b99ee158113fbc01ce585cd6d611440ed69667475e2c0ad4c188423a. 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/USTE10701546.
Iphigénie en Tauride, Wq. 46, Act I: Iphigénie, ô ciel!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310b0148762e9fb4823262f62d543775ae8dfc77f68ec24f41d6e3442a452c93. 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/USTE10702546.
Iphigénie en Tauride, Wq. 46, Act I: Quand verrons-nous tarir nos pleurs?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71d245b6ecc76ea2b51eaff285977a48c36b7e237eb271387a662310d07d9a0. 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/USTE10705546.
Mozart, W.A.:Cosi fan tutte K.588 - Highlights
Così fan tutte ossia La scuola degli amanti, K.588 / Act 1: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65468dd4b0f93aded770d7fbd17ae54d65c54c62df3bc0acbb9e2f2a7b05aaf. 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/DEF059231701.
Ein deutsches Requiem, Op. 45: I. Chorus. Selig sind, die da Leid tragen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9459dabb87d5eed82dceb4bd43b310e6d1ac813f2c01b961e409d95c165a1a6f. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NLA509003101.
Ein deutsches Requiem, Op. 45: II. Chorus. Denn alles Fleisch es ist wie Gras
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8948d5ba32666dd8b0af6a26019de332469e57267ec8fb9d34fb51408e15d5d2. 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/NLA509003102.
Ein deutsches Requiem, Op. 45: III. Solo Baritone & Chorus. Herr, lehre doch mich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccd4e52f1a1efb768901b85a791db005971829aeb58cdf41ca3b8277680cd48. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509003103.
Ein deutsches Requiem, Op. 45: IV. Chorus. Wie lieblich sind deine Wohnungen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41240064f4934ca54b60533f65f624e29db28709dd3c6c9237b5dfb7b4c90e0. 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/NLA509003104.
Ein deutsches Requiem, Op. 45: V. Solo Soprano & Chorus. Ihr habt nun Traurigkeit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a276be9c072e98fb2a6a6ec0ed7e43bbd4ff0f9c6b857d5c758236c5e0b0a9. 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/NLA509003105.
Ein deutsches Requiem, Op. 45: VI. Solo Baritone & Chorus. Denn wir haben hie keine bleibende Statt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c524a495e9fa8fa3db32dd5b09f7eb8e232d6feded4072fa1037d1382a9a9d. 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/NLA509003106.
Ein deutsches Requiem, Op. 45: VII. Chorus. Selig sind die Toten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18d54bde15c3239ac4fd49fee6f3a6b3e4f9af19888b4c4302fa6ec5ea64765. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509003107.
Bernstein: Wonderful Town, Act 1: "Christopher Street" (Tour Guide, Villagers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dac6619d828a2fe630bc0fd1f0920ab333db62a2344b42f719077fc261af43. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/GBAYC9802845.
Bernstein: Wonderful Town, Act 1: "What a waste" (Robert Baker, Associate Editors)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ae9b0e4444b52b06858d56db5115aa67b7c067e95aecc2cae7d7cb6f9b2c9e. 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/GBAYC9802849.