Johann Jakob Froberger (baptized 19 May 1616 – 7 May 1667) was a German Baroque composer, keyboard virtuoso, and organist. Among the most famous composers of the era, he was influential in developing
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 0x696756d4e03e65c0f3738e181e31e299b5bfb2f689418e28491ac2e61716cd21. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/397e25d7-39c2-4bbe-a890-8ba925d2e171.json and https://artists.proofprofile.net/proofs/artist/397e25d7-39c2-4bbe-a890-8ba925d2e171.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Bach: Notebook for Wilhelm Friedemann Bach: No. 8, Prelude in F Major, BWV 927
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 0x4da73cb4d95aef04dc7f8f939367aa2b7a1c9f02685d596a3e6243206adc566b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806417200 — a six-check JSON result.
Bach: Canon a 2 perpetuus in D Minor, BWV 1075
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae8287d68296e914993fe099557a95ba949b25dee0f4c5a1ff6a7ae8c266473. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806417800 — a six-check JSON result.
Handel: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: I. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee83de9f1aace8c6abf4d4abdeb577049d68e8ff1b835d7f0f2ddc9fc229f3fe. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806200801 — a six-check JSON result.
Handel: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd79d91cc7cb2ab52eba12ca48326ecffe4cef795c3b1042ac694692facdf22. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806200802 — a six-check JSON result.
Handel: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: III. Alla siciliana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c57a6152bc0afb180731ebebbd0df72b083eb8cdbf65a58ac4e8b4d06fbcc4d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806200803 — a six-check JSON result.
Handel: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06af58cafa5db508fd04d3af512383e5e5250fbe2c954833e9c724347dcdf752. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806200804 — a six-check JSON result.
Bach, JS: Goldberg Variations, BWV 988: Aria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ce8403f415f563cefe06ba14a486bc1cfdc7055342d3b03d200e533d0177ec. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806502201 — a six-check JSON result.
Bach, JS: Goldberg Variations, BWV 988: Variation III. Canone all'unisono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916e847926da491a781005632b164f6d92e1588a31913a53b8e3bb907cde06b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806502204 — a six-check JSON result.
Couperin: L'art de toucher le clavecin: Troisième prélude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54f3e14c33c59e25e23e6ca4c4af9b0e763e64ab28d02d2591026f563cca48c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806419503 — a six-check JSON result.
Bach, JS: Harpsichord Concerto No. 5 in F Minor, BWV 1056: I. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191cef1f497ffe54498b125cd364b7716d7a39b88a8330b73b4a0efff14f2e67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806701901 — a six-check JSON result.
Bach, JS: Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dd22ec2ce8e53c3b28d59cf8606c6987a4317d5a1049d1aa008e07f6e52b8c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806701902 — a six-check JSON result.
Bach, JS: Harpsichord Concerto No. 5 in F Minor, BWV 1056: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7eaec61175213ea3a8cfa1fbb1e82231959ea70569c40c4ebffe9f41cc79e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806701903 — a six-check JSON result.
Telemann: Nouveaux quatuors "Paris Quartets": No. 1 in D Major, TWV 43:D3: I. Prélude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aad011d10c15d5d04b8c6d09f8e0e397320fa9e7ecc0427b7264a9da056757. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806400001 — a six-check JSON result.
Telemann: Nouveaux quatuors "Paris Quartets": No. 1 in D Major, TWV 43:D3: II. Tendrement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88542e6d7e0a59db3715b99e22c4e417cfe566b5a1830fc0826faf86732c9f28. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806400002 — a six-check JSON result.
Telemann: Nouveaux quatuors "Paris Quartets": No. 1 in D Major, TWV 43:D3: III. Vite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aee9f0e07e2a615f41ff93fddaeca63daba588f32e71673c97ad540131c30a0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806400003 — a six-check JSON result.
Telemann: Nouveaux quatuors "Paris Quartets": No. 1 in D Major, TWV 43:D3: IV. Gaiment
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf384835364a2935ce0a8854afe966fd7a9d5d3b9ad6520e6b3735b2455b0c470. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806400004 — a six-check JSON result.
Telemann: Nouveaux quatuors "Paris Quartets": No. 1 in D Major, TWV 43:D3: V. Modérément
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d943e04eaf14ac182dcd00c4e8939de3bfa73e7f78a29b24151ed479976479d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806400005 — a six-check JSON result.
Bach, JS: Suite in E Minor, BWV 996: I. Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c1d74b9a1a002540ea46c56b6b380663c9cc8d4799845c736ba4f950aabb67. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807006001 — a six-check JSON result.
Bach, JS: Suite in E Minor, BWV 996: III. Courante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82dd1234e212a2997d4141ae87f2f6d10ca9073aa623ddcea4fd5ab446faa45. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807006003 — a six-check JSON result.
Bach, JS: Suite in E Minor, BWV 996: IV. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fe3394e70522d0c2a70a64a97118c9555c36cc71f0861c306e20753e42317a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807006004 — a six-check JSON result.
Bach, JS: Suite in E Minor, BWV 996: V. Bourrée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6d77ec2e2832b8076949588b3a64a80d986b9bcf9c5947e9982d4314058fd5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807006005 — a six-check JSON result.
Bach, JS: Suite in E Minor, BWV 996: VI. Gigue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa140d96015a12807bcea144b9a3ec58f8870e94f2ddd59eddd34854362878cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA807006006 — a six-check JSON result.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 1, Sinfonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6c7a8837ac165a2bcd57473ca14d3396611c07e95bbb5500dcb45521198308. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9102747 — a six-check JSON result.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 4, Chorus. "Come Ye Sons of Art Away"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642a56d8f85b410dd92e0cf28615e68fa363a7702a9d3458ce16b510919d80bf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9102750 — a six-check JSON result.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 5, Ritornello. "Strike the Viol"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab4fcdea3df3b3362354731fd521fd9a28768fdbff985adaa673320d3cd7c76. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9102751 — a six-check JSON result.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 7, Aria. "Bid the Virtues"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1739dbe58346eb633b9631c716e8b7206c1953c4547bca5df6e877efad95e3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9102753 — a six-check JSON result.
Purcell: Come Ye Sons of Art, Z. 323 "Ode for Queen Mary's Birthday": No. 8, Aria. "These Are the Sacred Charms"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d07a881481553a44fd83f10bb623dd4ea65a2bb9c8f3063d52b63cd409ed5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9102754 — a six-check JSON result.
Bach, JS: Violin Sonata No. 1 in B Minor, BWV 1014: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ef00e7939166b28647d294a0d9b3bfac4dcc8a13b22d1488195ec657ee6574. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806308201 — a six-check JSON result.
Bach, JS: Violin Sonata No. 1 in B Minor, BWV 1014: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c5e3b18b16b52b94d46f8683f86353e0934aa5b88bd8371465c8662b401bec. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806308203 — a six-check JSON result.
Frescobaldi: Il secondo libro di toccate: Gagliarda seconda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22de29efccb515fe1f1baf9940c78451cbcdc4272a5dc86dea4540750ce7f24b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806706402 — a six-check JSON result.
Frescobaldi: Il secondo libro di toccate: Gagliarda quarta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b40f0ffea4bcc4a19c729cb5d486203ed9b5495b45b0ef40f820bdbd4dbdf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806706404 — a six-check JSON result.
Frescobaldi: Il secondo libro di toccate: Gagliarda quinta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d12df4d45b72b51df2745a88c242376cc7682c9a47912ee7748020a3d62ac4d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806706405 — a six-check JSON result.
Mondonville: Sonata for Violin and Harpsichord in F Major, Op. 3 No. 2: II. Aria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367c6ff9062dd5dd62dd3df2ad455f0416fb2f87a5f12ff04581fd09f48c3c4d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806606002 — a six-check JSON result.
Mondonville: Sonata for Violin and Harpsichord in F Major, Op. 3 No. 2: III. Giga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185d25f289be9a8a2ed71927c48e28d2c06d8f4742c5aaa94dfea709830a6693. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA806606003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bae379aa576c45f7ea66efde68b7579601649a338c8fb1d87d451eabda7777c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQG42468027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c23b6edf599c6f1e8cff255b7a40a70005fde285e27d85c65f903f04673ae72. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQG42468028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dee1b11c8593cf21eb33ecc013a46128ef15e6f825cfdf53d2ec3c8879dd52b. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQG42468030 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef859be9c57f4b1a9a6e12c729530a95092c4366458bfa1104ceb9644e461af9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQG42468031 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ddc9c20993a5d20bff11a60d9c2ca95088633837d24bf759ae3637bbd60449. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8801373 — a six-check JSON result.