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 0x909bf6b3774c219c319e3896a631cd5fd24ab36a7c6d3fefe4f74566c814d5ba. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d42fe9c3-6c1a-4916-847e-62988ec63dc0.json and https://artists.proofprofile.net/proofs/artist/d42fe9c3-6c1a-4916-847e-62988ec63dc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x791bb47b84bcad4d63661e71723b1ea32258d41815004f324052fcfcb3262208. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:03:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760801362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf051ea3adbf2a5a4175c9ba42c83556373311af86ae8bfafba2804e684e7afa6. 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/USX760801019.
High Energy Rock: Pedal to the Metal High Intensity Workout Music
Purcell: Ten Sonatas on Four Parts Z. 802-811, Harpsichord Suites Nos. 5 & 6, Trio Sonata in G Minor, Z. 780 (2023 Remastered Edition)
African Sanctus: 1. African Sanctus, "Bwala" Dance of Uganda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2c75e25d8bcddb87e8df78fedc27b2fe390e05997396222f3cd40434a96e90. 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/NLA507301096.
African Sanctus: 2. Kyrie "Call to Prayer", Cairo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d87da782e4077808af7ed5a735aa7a5ac64894397ee0157bb92ba5278e9fe4e. 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/NLA507301097.
Purcell: Twelve Sonatas in Three Parts, Z. 790-801
Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38a9777acb37a5e30cd02071a5bbb50c15239de9a6fe13ca983f9aca09c8f17. 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/GBAYD9800383.
Introduzione al Dixit, R.636: 3. Allegro: Avenae restrictae sinceri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b2d80a0bd22a5355ef4658bf07c884cc11914b1845b66c77c98d6ad781653d. 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/NLA507614303.
Dixit Dominus (Psalm 109), R.594: 1. Allegro: Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc470ed8a849aa045ca490a0ffbb7a49eab1bac333410034c7d1b1cc8d49ac36. 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/NLA507614304.
Dixit Dominus (Psalm 109), R.594: 2. Largo: Donec ponam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0f0098d09248785a5bcfe27b92bd65615b75216398eb784597dc4d8cb67b9e. 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/NLA507614305.
Dixit Dominus (Psalm 109), R.594: 3. Allegro: Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8252872d292ba51453503546f4ab0bf8bd9a45e5eda3d04e82d280bbfab348. 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/NLA507614306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020f1ec3f79545848c2fca0b8464657562f10d280f3d51536fbe998c26674a2a. 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/NLA507706106.
Gloria, RV 589: IV. Gratias agimus tibi – V. Propter magnam gloriam tuam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efb6ed16cb3be171847dd66ea4d594f971bc31f473ffd578f598a84e79f3dfa. 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/NLA507706107.
Dixit Dominus (Psalm 109), R.594: 7. Largo - Allegro molto: Judicabit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0984a4d7e5aec62b36a2018bac3943a0cd1f0ef8b4c5be9cdbbe06eb905560d. 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/NLA507614310.
Gloria, RV 589: VIII. Domine Deus, Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775269ef4e458f91f5c8dd38e78f95efca4735b866ab1923d085639ba9ce2ff. 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/NLA507706110.
Gloria, RV 589: IX. Qui tollis peccata mundi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b14ffe8cc214af5132febce6a51d12883c288aea28587c0c8bf3c230fb70de. 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/NLA507706111.
Dixit Dominus (Psalm 109), R.594: 9. Allegro: Gloria Patri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ca2a4b218e41fcb4506ac86e91ab5418d345d5c81fa560132f380431286725. 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/NLA507614312.
Gloria, RV 589: X. Qui sedes ad dexteram Patris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b3b3949b03e8a5a749c257dc881dc8be58e2e2aa629f2e690ae9513cb4c8a. 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/NLA507706112.
Magnificat, R.611: 1. Adagio: Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80bc1d84bc04f12b136d05b0d84510dea305243146f927960500715dc4edb94. 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/NLA507801911.
Laudate Pueri (Psalm 112), R.602: 1. Allegro: Laudate pueri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419833b1074a45946c0b10a68719710d9decee15183d77ae148722d2f5be919. 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/NLA507801901.
Magnificat, R.611: 3. Andante molto: Quia respexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0679f2dd373a72a62cc801abfd4ba23fe8c07489e193825d0e7927a87b991e7. 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/NLA507801913.
Laudate Pueri (Psalm 112), R.602: 3. Andante: Excelsus super omnes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5e4ea0850108d91f0668fafe9a5eb0cdc9cc01490fe205577849095c4c3b9f. 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/NLA507801903.
Laudate Pueri (Psalm 112), R.602: 6. Allegro: Suscitans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa34f0e02e2d8b15072a20377fc943d5a9cfdfae49d5d1c86c8a40be77fdc497. 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/NLA507801906.
Laudate Pueri (Psalm 112), R.602: 9. Andante: Gloria Patri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26ba28779331aa55f6e8a2260d41b1a91ce6c33ad0a3af149539fe617fd1d3. 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/NLA507801909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049f2cec8e308dd2c84b4f8c8d04663d2994e73759122dbdc808dbe1032c09c1. 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/NLA507706128.
Milken Archive Digital Volume 17, Album 6: Ode and Epics - Dramatic Music of Jewish Experience
Macdowell: 2 Piano Concertos & Solo Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2c9f011ef284d5b81e9984979b7b7267a4ff0d2462a5a40d43e9ac50b3a325. 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/GBAYD9800377.
Traditional: Scarborough Fair (English Ballad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e9e503d9604a8d12158dfb50b5ed6b7c4c347fd387cdac260e0711a79ae2d9. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:24:23Z), 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/GBAYD9800378.
Brahms: 21 Hungarian Dances, WoO 1: No. 5 in G Minor (Orch. Kennedy, Lenehan, Messiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef6f683ec77a9cf9146e32f564b3d4a0b59301b2a6e08b267011dc7914c1678. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAYD9800379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38a9777acb37a5e30cd02071a5bbb50c15239de9a6fe13ca983f9aca09c8f17. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9800383.
Traditional: Londonderry Air, "Danny Boy" (English Ballad)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55115ac38f4e861dd414d3b734647e4e62ff817e008341f7feb860c5c6de0877. 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/GBAYD9800384.
Monti, Vittorio: Csárdás for Violin and Orchestra (Largo maestoso - Allegro vivace - Meno quasi lento - Allegretto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83cc24396e918221f97a96f48e2a62e994d2b8bdb336336a64aec7ae0eee5d1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9800385.
Gounod: Ave Maria, CG 89a (Version for Violin and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b9c67317ed496252e485c34e7b9fe529526064c1fd775f638a09a913648eea. 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/GBAYD9800387.
Debussy: Préludes, Livre I, CD 125, L. 117: No. 8, La fille aux cheveux de lin (Arr. for Violin and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0282e33e2fba8868dc6821098abd5fa38de37e328e3621e16f4ed4be12dc9a. 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/GBAYD9800388.
Satie / Arr. Kennedy, Lenehan & Messiter for Violin and Orchestra: 3 Gymnopédies: No. 1, Lent et douloureux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c8f1e9f667d06e09cb0b1167b9fd1c186b73e7bcee2654539c31ff6c30db47. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9800389.
Gershwin: 3 Preludes: No. 2, Andante con moto "Blue Lullaby" (Arr. for Violin and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5804bad801890c1bf8e21b118da3ac68d18bf50ea8210924678d0d0a39ae6f9. 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/GBAYD9800390.
Kroll: Banjo and Fiddle (Orch. Kennedy, Lenehan, Messiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81c850aceaa209424d1009b248af5fcdce7b101fb9d5fa32d86f2f55dd5e103. 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/GBAYD9800392.
Mitchell: Urge for Going (Instrumental Arrangement of the B-Side Track of the Joni Mitchell Single "You Turn Me on I'm a Radio")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72dd0a9e5c8a407dfdf6a343cc6290a9d080511cd3d0d1c411ff43f192b4c5a1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD9800394.
Britten: The Little Sweep & Cantata Academia
Zaimont: Sacred Service for the Sabbath Evening (Excerpts) / A Tale of Abram and Isaac
Science Fiction Sound Effects: Aliens, Lasers & Shimmer