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 0x0d3795b735145e2d86e47d4f929eb26c1da3881b9ec3a2dfeb05b1e2c6197254. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/428a6678-76b1-4243-ba39-2e54752c482c.json and https://artists.proofprofile.net/proofs/artist/428a6678-76b1-4243-ba39-2e54752c482c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Concerto for Cor Anglais, Strings and Basso Continuo in G Major: I. Allegro
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 0xd021917abc4bfdf346c1788b7ac746e18db6fd87165765c38c54a4de33f4c9cb. 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/CZA162100886 — a six-check JSON result.
Concerto for Cor Anglais, Strings and Basso Continuo in G Major: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ab0ac0b31866eebc786a6566b4a2f9ca423f686a6e9c9753f62004ddc8baff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CZA162100887 — a six-check JSON result.
Concerto for Cor Anglais, Strings and Basso Continuo in G Major: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f27af8e9b8300a4f0f68cc8f4b02deef1934a13f4f7458df8da0babfd18f752. 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/CZA162100888 — a six-check JSON result.
Symphony No. 9 in E Minor, Op. 95: No. 1, Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf674a7040ab11e7cfabc6484f42cc81e9519313f6d5f5b5b82aa3369dd95de0f. 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/CZA162100889 — a six-check JSON result.
4 Impromptus, Op. 90: No. 3 in G-Flat Major, Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b2020ca92ca42040b3ec56867120a2632b488ba9a1af65d023d246d32fbf45. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162100890 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd2062985fab5d9cd062f63975a6e7edd31501cd097b219b83a6a49f8cb97ed. 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/CZA162100891 — a six-check JSON result.
Quartet for Cor Anglais, Violin, Viola and Cello: No. 1, Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53d7f039f2ca07b2d703704c7cf1bfacfb9355e9f47c95204bd91901fc0afc6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA162100893 — a six-check JSON result.
Quartet for Cor Anglais, Violin, Viola and Cello: No. 2, Andante tranquillo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29755f09b66092b7dbb816a9a7a67dd8403300eaf6726ee1cf60d1d862fea42b. 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/CZA162100894 — a six-check JSON result.
Quartet for Cor Anglais, Violin, Viola and Cello: No. 3, Vivo assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1938106b4edd8246907aec911980d988cddcd9c3545dd1e88223b2dab9fba7f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CZA162100895 — a six-check JSON result.
Quartet for Cor Anglais, Violin, Viola and Cello: No. 4, Andanino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e41bb748fe869fcd1ac0f7dc4d782a65a08c3107a10fc232eaf6b84a4480e3. 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/CZA162100896 — a six-check JSON result.
Quartet for Cor Anglais, Violin, Viola and Cello: No. 5, Allegro giocoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e774c2382bd90a111274b7ce088b3883442e152b7c857d92553fa76a5c6b69. 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/CZA162100897 — a six-check JSON result.
Tristan und Isolde, Act 3. Hirtenreigen auf einer Schalmei. Mässig langsam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbda2e5e2c348aafe8a13aa94086973f601ef24c6954466e99021b6eff5faab. 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/CZA162100898 — a six-check JSON result.
Weinberg: Piano Quintet, Op. 18 & Children’s Notebook No. 3, Op. 23
Cello Concerto in C Major, WK 60: II. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f82fcc41b03068280e4486bbdb48730cc43e60ce2a44376856232304307de31. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEAD62202202 — a six-check JSON result.
12 Romances, Op. 21: VII. Zdes' khorosho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272429271c0e94a6d10f51cf46ceddf421a2b95ad7e8e9dfe7caa523c314af78. 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/FR50X2179609 — a six-check JSON result.
Beethoven's World - Reicha, Romberg: Concertos for Two Cellos
Symphony for Strings and Continuo in G Major, Wq 182 No. 1/H. 667: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf41f79a52d94cf445930cb807f3d38d67e6bdbc2c5d68841ac9acafe2f5dba. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/DEE471500262 — a six-check JSON result.
Concerto for Violoncello, Strings and Basso Continuo in B-Flat Major, Wq 171: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bab76812a1616b5c18204c51a6656e644ca884186fe3405aa126a425e744074. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEE471500266 — a six-check JSON result.
Ludwig - Beethoven: String Quartet No. 3; Kreutzer Sonata
Beethoven: Violin Sonata No. 9, Op. 47 "Kreutzer"
Concertino for 2 Cellos in A Major, Op. 72/III. Rondo. Con allegrezza
Concertino for 2 Cellos in A Major, Op. 72: III. Rondo. Con allegrezza
Deutsche Radio Philharmonie Saarbrücken und Kaiserslautern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6b9aeac26b1eb9ef97d57676c08e1ab28de03735c104e3fb58658b32c003b4. 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/DEE861903036 — a six-check JSON result.
Sinfonia Concertante for 2 Cellos in E Major/II. Largo
Sinfonia Concertante for 2 Cellos in E Major: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f868d6357fed8a6013d6c8affd1c6cbfb88a357ab0b72fc21748d11fa966010. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861903031 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c24027e78b1bd11196ec46b01250ac56661efd033313abdef9ac1985c5c75e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEN962136101 — a six-check JSON result.
Excerpts - From "Close Encounters of the Third Kind"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a0b401697dea4c6ee90dd51eeac6b8aee2a24165340d8575591a53c2ce3b3b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136102 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821d3f35a535cdca0568000afc22f6fbb6c794d3eae4c3a8283e3e91ef421de4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136103 — a six-check JSON result.
Hedwig's Theme - From "Harry Potter and the Philosopher's Stone"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b325d576b64fff5ff010c767e33621503a518190f3014b209b2cc0664a82cc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962136104 — a six-check JSON result.
Nimbus 2000 - From "Harry Potter and the Philosopher's Stone"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf81ae9e15739a3c1b3857e6cd7add5700017c12a84533d164084df9f9273e33. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136105 — a six-check JSON result.
Harry's Wondrous World - From "Harry Potter and the Philosopher's Stone"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e102ed554a5f6228dc3883582a65f216d1800fc5d1ec258ca89d41f328972c6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136106 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe4406142dccfbb8017e2e2d320bd5afd684d8ab1ecc98c02b4b1eb07055538. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEN962136107 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d10a64618cd1840e5877340e42d9d248088350d28be2b1924392151019afa48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136108 — a six-check JSON result.
Scherzo for Motorcycle and Orchestra - From "Indiana Jones and the Last Crusade"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d717835db9ed667a98cba6b3976de0f267f15bb876bd31cf40c157549b6b67c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136109 — a six-check JSON result.
Marion's Theme - From "Indiana Jones and the Raiders of the Lost Ark"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8167df1fa860ee497756af5afaa9342dce8cd319babb6944b34b0c589f6f69a6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136110 — a six-check JSON result.
Raiders March - From "Indiana Jones and the Raiders of the Lost Ark"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f586c9d91931ae192646a3f280f7d3be4aa837cbdf1e83e898bc88501645a0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136111 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9a31a9b44e062c35647b2429a268f0394773a57360e71212b2e89925cbb9ae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEN962136112 — a six-check JSON result.
The Adventures of Han - From "Solo: A Star Wars Story"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52262691d62e1b83c6396ade67c9aacf5f8c6eabbae77d9b7ff5b8b9c494c5a3. 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/DEN962136113 — a six-check JSON result.
Yoda's Theme - From "Star Wars: The Empire Strikes Back"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e81d9a36245f4bea11e5f4d8e1af2e84f1538c66e91ee0d7f281d6842f629a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962136114 — a six-check JSON result.
Throne Room & Finale - From "Star Wars: A New Hope"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce4d60d5e6cb012538dba82d7967339c398dfcd73dd316bd988c975607b4cbd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136115 — a six-check JSON result.
Princess Leia's Theme - From "Star Wars: A New Hope"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09bda4a32343daf5f0e5197b234215bb37b045513f1b9d41c5e18a46590fbe3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136116 — a six-check JSON result.
Flying Theme - From "E.T. the Extra-Terrestrial"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e9ba4a480ac5755439e2c934543ec3e0a8e620f3969636f0c405ea2b9efc25. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136117 — a six-check JSON result.
The Imperial March - From "Star Wars: The Empire Strikes Back"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7653b428926872301ed9bc00821bef0751e1b5ed46ee6e4ee0f576ebe0bd9d18. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962136118 — a six-check JSON result.