Hans Sotin (born 10 September 1939) is a German operatic bass. He was born in Dortmund and studied at the Dortmund Hochschule für Musik. He made his operatic debut in 1962 in Essen as the Police Comm
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 0xf440c5bc5c972e9e2b388033cd2be4e4f85313e8c125ab9846f1d73686b367be. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2ba4465-d0e6-4eea-b313-d38953a0bef4.json and https://artists.proofprofile.net/proofs/artist/f2ba4465-d0e6-4eea-b313-d38953a0bef4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Così fan tutte, K. 588 (Remastered)
Tristan und Isolde, WWV 90, Act I: Prelude - Live
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 0x96a9d2310b4298222dc28cc377515ebafd38bbec7bd86f903d8850079dbbf11f. 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/NLA508100001.
Tristan und Isolde, WWV 90, Act I Scene 3: Wie lachend sie mir Lieder singen - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5819225d0235bc7ca47e1ad86fe27fa500eecd885d18a9a42072247de5edace. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLA508100006.
Tristan und Isolde, WWV 90, Act I Scene 4: Herr Tristan trete nah! ... Begehrt, Herrin, was Ihr wünscht - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff64c8238e82d5af422506c20f0df7ea5d608473f47cbb114936344631e7429f. 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/NLA508100008.
Tristan und Isolde, WWV 90, Act I Scene 5: War Morold dir so wert - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3186cf738c03729f2841ff2f357f8949603f03f6d6e1bbf27a87f9dc001b1e. 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/NLA508100009.
Tristan und Isolde, WWV 90, Act II Scene 2: O sink hernieder, Nacht der Liebe (Love Duet, Pt. 1) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a19982ff205e391d5569ebe3d080bb5119acc72b6601339b61b96a3cdd8cb2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508100014.
Tristan und Isolde, WWV 90, Act II Scene 2: Lausch, Geliebter! (Love Duet, Pt. 2) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801fb56e9f8b5458bbbf313b5b33ac908e79f9920e71e89d583f2ad6126d26b2. 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/NLA508100015.
Tristan und Isolde, WWV 90, Act II Scene 3: Rette dich, Tristan! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd029c6dc54374bc67dcf526ec78ab279a089d58e6c51050b64ff2b4e96449148. 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/NLA508100017.
Tristan und Isolde, WWV 90, Act II Scene 3: O König, das kann ich dir nicht sagen - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcd80b170784cbf34dfaec50187de815a0d89764d0f4e32e4251e5f9a9650e0. 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/NLA508100019.
Tristan und Isolde, WWV 90, Act III: Prelude – Hirtenreigen - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efebd2f62ad1e9e7320dd3d1445650680618c4a6e2c1962ef2fcbb8afca6021. 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/NLA508100020.
Tristan und Isolde, WWV 90, Act III Scene 1: Der einst ich trotzt' - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4968ad41a7d992130a5572af8d2929fc10875e51eae83e3faa603d80f7e21c81. 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/NLA508100023.
Tristan und Isolde, WWV 90, Act III Scene 1: O Wonne! Freude! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493ceb007ad3ff4b9a42b47677ef2b1ce763b4f7dcf1ef6cc8ae4976c2399a3f. 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/NLA508100025.
Tristan und Isolde, WWV 90, Act III Scene 2: O diese Sonne! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14272bd5a595081124ea02878b77e4139d72a05413d540851db3a97cfe1b1f9. 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/NLA508100026.
Tristan und Isolde, WWV 90, Act III Scene 3: Mild und leise "Isoldes Liebestod" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1160684fc90af97a28ab33b63f469da3bb6d2323547833af62d7a327362a90. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLA508100029.
Tristan und Isolde, WWV 90, Act II Scene 3: Tatest du's wirklich? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd5e11f5b5fbc709d42ac60ca25aea215b2bf66d7d9c5e5c58a3c2e7a06de2e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508100018.
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
Tristan und Isolde, WWV 90, Act III Scene 3: Kurwenal! Hör! Ein zweites Schiff - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2753b0eac728dc0ce982fb33cc7f630caa410e804f963b20d7fb6bdd3a4710dc. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NLA508100028.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": II. Final Scene from Goethe's Faust. "Alles Vergängliche"
Mahler: Symphonies Nos. 4 & 8 "Symphony of a Thousand"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf85f55583882094bec409bc9455553f3ab9176eced10510f6b7a6903d5ecf33. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600537.
Lohengrin, Act III Scene 3: In fernem Land "Grail Narration"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fd58e5bf68aa58c0df7afd9e0367a7e615615106c943f8392804d151dbb310. 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/GBF078542236.
Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: "O Freunde nicht diese Töne" -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dac4792183ecfb431a46c7c8c4b5e5d0f75ce349d513fb972dab9ad27423105. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078612030.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Gloria sit Patri Domino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4568667cae77693858d0804b680eb1481ffc6205a9bd03ec6db4783057a822f. 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/GBAYC8600524.
Lohengrin, Act II Scene 4/5: Zurück, Elsa! Nicht länger will ich dulden – Heil! Heil dem König!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4718ffd2bbe20ce2d14f2e6c38575962f510020b08070a36093638093661ec. 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/GBF078542223.
Lohengrin, Act III Scene 3: Morgenröte – Heil König Heinrich! – Was bringen die?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e3c48eee58a5aca638c81d70424a9fa8580331099b5bddb1d2aa01764b6d35. 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/GBF078542234.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Accende lumen sensibus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75efd02267b582cbe8db9f8f8815c92b3a81d2ab24e12c50505b6786029ee963. 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/GBAYC8600522.
Lohengrin, Act I Scene 2: Seht hin! Sie naht, die hart Beklagte!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaaaaca15df026740dd4a6244e5da190a579477580193238eeb0bbdaab46f719. 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/GBF078542204.
Lohengrin, Act I Scene 2: Mich irret nicht ihr träumerischer Mut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabed09fdcf8535e9cad3a72fbd74f034ebb5db8d5a5e6b941f95f2c1361e2ba4. 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/GBF078542206.
Lohengrin, Act I Scene 3: Nun sei bedankt, mein lieber Schwan!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb73a756dfe38a450ce75d6cd867a472c80dd68b9875803ae667d91213f8c49. 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/GBF078542208.
Lohengrin, Act I Scene 1: Hört, Grafen, Edle, Freie von Brabant!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ef19030278b63a08c5ae48a66e356648729a14238248e9f39eedf9fab08274. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078542202.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Imple superna gratia"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b4ccf915304966e89ad1e84553d63ac1683949421fa23a4724e3ce4eee443. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBAYC8600520.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Infirma nostri corporis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7597f885be78bc1131813bdbd81b2ae7ee3506e8471483a01f687ad649c3cf9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600521.
Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand": I. Hymnus, Veni Creator spiritus. "Veni, Creator Spiritus" (Repeat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b704421d4ee61d2e5676d95efa375c030c5251449ec9131d3ccdd313109b614. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600523.
Lohengrin, Act I Scene 1: Dank, König, dir, daß du zu richten kamst!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b104b6557a8d38b38d70f5d2b2def9218a9b56abcaaa3c95a409c772e60f347. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBF078542203.
Lohengrin, Act I Scene 2: Einsam in trüben Tagen "Elsa's Dream"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1320f3ac2783732d8717dc74e799b97baa2e8b83cd2b8595a9ac92ea7df3d9d4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBF078542205.
Lohengrin, Act I Scene 2: Wer hier im Gotteskampf zu streiten kam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10cd98f63659bfff9580e43896d2deb0482bc3ea1391bf4d4e03c4bafc6ed45. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/GBF078542207.
Lohengrin, Act I Scene 3: Nun höret mich und achtet wohl – Mein Herr und Gott, nun ruf ich dich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64d21e2ec2f8d9d6da6f50534b26459ab3775f476a061300578731193de7ce6. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBF078542211.
Lohengrin, Act I Scene 3: Durch Gottes Sieg ist jetzt dein Leben mein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f831607b8c9ef60b7ba51191eb060fe15c4c091b8d1ae886d474ffeebf73f5f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078542212.