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 0xa2b29ca307b6115bc64d3c5afc1c82769c2183c0090119326d8bd7019ad241cb. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/718b5ce9-10ae-47f9-9996-e81742a45db1.json and https://artists.proofprofile.net/proofs/artist/718b5ce9-10ae-47f9-9996-e81742a45db1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xe0335e2cb620153266d124cc074e180eb6928904518395f486f758f096505c93. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989200753 — a six-check JSON result.
Absalon fili mi (Arr. Carp for 4 Bassons)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492c5b152826aa6540d841488bffc38091f507ca825a2fadcd321af6397c94d1. 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/DEC989200754 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3549953dca455174a441d5359c4ff144aadb1547c53c023b22f2ed339e178877. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEC989200755 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a04739bcb89e15ab5dfc515b857c38916beb7d7380be0760b0a623974a64252. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DEC989200756 — a six-check JSON result.
Trio Sonata in G Major: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8b6d1d627a52e1b8fc935c0ade53f41a40971a937247c11b2ff70f41d4d84c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEC989200758 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794f87ec8dde4e1cc6e9f7aaee0a4d5296243452aac9465b6b70af43914673a3. 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/DEC989200759 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359cf1d5a199f884b564b0dace8c9202bc12f51e76375049513c41c76ebc5dae. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEC989200760 — a six-check JSON result.
Sonata for Bassoon and Cello in B-Flat Major, K. 292: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95d04538590f4a91c2b804a47e64eacb9e48413a753e14d29e5763a7ef067f7. 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/DEC989200761 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f37803d338985352b62e8191fe490bc41ff36dcb1cbbfc8a74c35975bb60213. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEC989200764 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26915715a368c288f09883e5205ec8bfa9e1069ce2820a4fd962211561b9ae7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989200770 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b244adc34b4116ab9b61371db43139a09bf327c76abb80ad0eabe7657ec6b1. 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/DEC989200771 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c874367b45eaaf9aa7de382369b681bb565c21aa7186cd39a7902e624c34f7. 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/DEC989200772 — a six-check JSON result.
In My Merry Oldsmobile (Arr. Carrol for Bassoon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0f490ea53182c4af0cdee777ba8a117077292ef509e7100c4c4fb461a4e640. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC989200775 — a six-check JSON result.
Milan Turkovic Conducts Vienna Radio Winds
Bassoon Concertos - Bach, J.C. / Kozeluch, J.A.
Bassoon Concerto in B-Flat Major, K. 191: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec364c615293606a7b384068f9fc17fe4b8a362cc88e8815dd43240e42d17f21. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057300843 — a six-check JSON result.
Bassoon Concerto in B-Flat Major, K. 191: II. Andante ma adagio (Cadenza: Zeman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34947389ef31f4e2418e73c5ef23a862137dd0d1865e020dfba14fe9b7d822b2. 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/DEF057300841 — a six-check JSON result.
Bassoon Concerto in B-Flat Major, K. 191: III. Rondo. Tempo di menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c31d772cd093da384cec25d8f585156ae0112a3af50dba6dcd032d0659a64d. 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/DEF057300842 — a six-check JSON result.
L'invitation au voyage for Soprano, Piano and Bassoon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1515b9ea719dbd306b8edceb2f9e11932443d7ddd7c07bb4045e5d3d2bd5a232. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ATMA40501561 — a six-check JSON result.
Partita in A Minor, BWV 1013: I. Allemande - Trans. in D Minor by William Waterhouse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060916b030a488efbf4040db6e0528f6f2cae61dc07277a7e1dbe3a24c509445. 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/ATMA40501548 — a six-check JSON result.
Sonata for Bassoon and Basso Continuo in F Minor, TWV 41:f1: I. Triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956a9f7986841345181658307825dc3990f9b06cf81c485e45fe499ac0b4fe39. 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/ATMA40501552 — a six-check JSON result.
Sonata for Bassoon and Basso Continuo in F Minor, TWV 41:f1: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bb689a75ec4447133b7b6326ea241bebd2163f91dd595737d2391bc039b166. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATMA40501553 — a six-check JSON result.
Bachianas brasileiras No. 6, W392: I. Aria. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323f09dec00591f4a64b5a39dda967d708fb946912c6d34a31881da8ae190f4b. 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/ATMA40501567 — a six-check JSON result.
Sonata for Bassoon and Basso Continuo in F Minor, TWV 41:f1: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9077211044d58a07b4bdfff39e97e335e2c266f16371d159e6d17592e4eb791b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATMA40501554 — a six-check JSON result.
Sonata for Bassoon and Basso Continuo in F Minor, TWV 41:f1: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce90fb1578f79cc7861afcb9137c908d0dde22d3371db1a8864cea84d424b76b. 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/ATMA40501555 — a six-check JSON result.
Sonata for Bassoon and Violoncello in B-Flat Major, K. 292: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa915155cbc4d076d9bd6c628c0147b55c4624ec77a9284f3f0251ec9676f2320. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/ATMA40501557 — a six-check JSON result.
3 Bagatelles for Bassoon and Piano: No. 3, Be Bop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ece78e2808a9a4b8a7d0059b9b819cc8b295c67918a381f189bb05da4b9f40b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATMA40501572 — a six-check JSON result.
Bassoon Concerto No. 6 in E Minor, RV 484: I. Allegro poco
Vivaldi: Concerti "Con molti istromenti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f25a97d137fdb07e7bc8b13896357043a50966bc70f1181e759d42eb09e02. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/DEF058602291 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207f25a97d137fdb07e7bc8b13896357043a50966bc70f1181e759d42eb09e02. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEF058602291 — a six-check JSON result.
Bassoon Concerto No. 6 in E Minor, RV 484: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6dc67ef84dd6295fd8443803afda4c7891e9752f1195f060415d58a2e4046a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058602292 — a six-check JSON result.
Bassoon Concerto No. 6 in E Minor, RV 484: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9783b77d24cf503539d850971bdc927f55673f04520675b52705e7d532fd3d. 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/DEF058602293 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6dc67ef84dd6295fd8443803afda4c7891e9752f1195f060415d58a2e4046a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058602292 — a six-check JSON result.
Concerto for Oboe and Bassoon in G Major, RV 545: I. Andante molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0584c981dc355c4e756e735554280b9bc3f6df35f8643c2a69f3fd8eff4498. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058602321 — a six-check JSON result.
Concerto for Oboe and Bassoon in G Major, RV 545: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46f9ebec613a122b38f6dd051968fcc603f548c1607e51775c33c3ea0ef94ba. 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/DEF058602322 — a six-check JSON result.
Concerto for Oboe and Bassoon in G Major, RV 545: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78854805be6041e956a5dd04bd31e38eea2d83b879214f767e36c389db7b82a8. 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/DEF058602323 — a six-check JSON result.
Spohr: Nonetto In F Major, Op. 31 / Martinu: Nonetto (1959)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd822e7d0c3a0427f26616334748f03236d8580cbfa3b5a04004b5e7cc0695b34. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEF058802821 — a six-check JSON result.
Nonet in F, Op. 31: 2. Scherzo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc14424493aa5fa9429c95767237fa11666fa5e778d76cb11bcae6876836ee7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058802822 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaa9c764ee996c12bc1caadf18c304e5e13d41d0005a546ad4ace4bdebe03e5. 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/DEF058802823 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894b227390c103aa00ab7a73a2db084ad4feee474c5ee052d1d503ac05cccb30. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058802824 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9a40761e27becc1f19aeca4b6ec0a2d45491811464cd5527ae42712ff7dc1c. 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/DEF058802831 — a six-check JSON result.