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 0xc3f8388b8363cd2324971434f5633f1c7f5fceea2c9bfd1b7e074731c5e59e2f. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb23dcb4-75b9-46a6-adfc-dad42e9e0abd.json and https://artists.proofprofile.net/proofs/artist/bb23dcb4-75b9-46a6-adfc-dad42e9e0abd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Vocal Recital: Hynninen, Jorma / Ruuttunen, Esa / Tiilikainen, Sauli - Kokkonen, J. / Dvorak, A. / Pylkkanen, T. / Tikka, K. / Piiparinen, M.
Viimeiset kiusaukset (The Last Temptations): The Last Temptations: Paavon virsi
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 0x91d0b2a30e6f8a87b16393be3bfb49ba81e01f3662cc072ee193c16e1553272a. 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/FINDE9800127 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25d5ac677e0060b89186d784fc63eba643207ffc6bd39dc4ee3169645d1b919. 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/FINDE9800130 — a six-check JSON result.
Wagner, R.: Rheingold (Das) (Ring Cycle 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77104f58733e2ca6d450fcc390302a325ad88a6997bb9760d45e601828f4f8ff. 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/HKI190567501 — a six-check JSON result.
Das Rheingold: Scene I: Weia! Waga! Woge, du Welle! (Woglinde, Wellgunde, Flosshilde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb568c7891c454b78947f36d3f67ae7f9d5d5073dbb0ef64ab9cac0deb5f0bf47. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/HKI190567502 — a six-check JSON result.
Das Rheingold: Scene I: Hehe! Ihr Nicker! (Alberich, Rhinemaidens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78b33adef8e88d8201c1ba2ae21e0550f2012bc02110b83e141e9dc1a87b5be. 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/HKI190567503 — a six-check JSON result.
Das Rheingold: Scene I: Garstig glatter glitschiger Glimmer! (Alberich, Rhinemaidens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd231af5be5ebe95ec33a11f9492ae709cf25e92fab0a15a36cc69faf1d3916ac. 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/HKI190567504 — a six-check JSON result.
Das Rheingold: Scene I: Lugt, Schwestern! Die Weckerin lacht in den Grund (Woglinde, her sisters, Alberich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c58ebdb33ed8c4d7e5f4195e33ff354874843635ac8a69305e61b8385975b9a. 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/HKI190567505 — a six-check JSON result.
Das Rheingold: Scene I: Nur wer der Minne Macht entsagt (Woglinde, her sisters, Alberich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ba442d59f562bbaee92730ca5eef5f94103e025f0fb196a1daecf8ba56726. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/HKI190567506 — a six-check JSON result.
Das Rheingold: Scene I: Der Welt Erbe gewann' ich zu eigen durch dich? (Alberich, Rhinemaidens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b3e5bce2c35d56800ee045b5f720fb5135de3669a44de3d849da57721d55a6. 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/HKI190567507 — a six-check JSON result.
Das Rheingold: Scene I: Haltet den Rauber! (Flosshilde, her sisters)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6b3ad29f64f292ca7c414656ee42452ec5e8e25a7d66c9e8562c2b077fabeb. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/HKI190567508 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a2da96c063a5295b7ba5a7c9d14775c607084383d31fddc13e56ea115fd5ab. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/HKI190567509 — a six-check JSON result.
Das Rheingold: Scene II: Wotan! Gemahl! Erwache! (Fricka, Wotan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60be1b2621173ce8cecbdb18de2affb8559a514e6cc29f51540b6cff9c3311d. 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/HKI190567510 — a six-check JSON result.
Das Rheingold: Scene II: So schirme sie jetzt (Fricka, Wotan, Freia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bd7cedb50a3110a735f13ce28c0a0ef2b7c44d84ce5e57f0f47eeaaaf2f336. 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/HKI190567511 — a six-check JSON result.
Das Rheingold: Scene II: Sanft schloss Schlaf dein Aug'! (Fasolt, Wotan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8870820b22c05135998ec0b60864585bb8b4610ea48accdb63c0e6e7765a483b. 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/HKI190567512 — a six-check JSON result.
Das Rheingold: Scene II: Was sagst du? Ha! Sinnst du Verrath? (Fasolt, Fafner, Wotan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369bd4fdbb53b149173e6956bab2c5ec4a9fb1f600bc8787d0780de09a7a6255. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HKI190567513 — a six-check JSON result.
Das Rheingold: Scene III: Verwandlungsmusik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa3b29432be42890fe8259925f48933a9972cbd06c9362257dc4091cc25375d. 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/HKI190567521 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62ad372d9e9bd3220a4ff48aae04ecc7c2f6102165aee78f23194f6425afcf3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIHHR0390026 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a3af1bdde3057ff8ef8776112fcb22fecfd8ac3d9254492077b4188982830d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FIHHR0390039 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d20cbaa711cbaa9cf110eb60d952ee65f120b18b5fa2b62cd76bc3c11b8d1ed. 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/FIHHR0390027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a1abb4dba57e9582b65ca2df4d696b7fab5f8291b086f47db12ecbbc59e7d8. 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/FIHHR0390028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a4e58bcba4d0c1968fbfa7b26a396bc3dfc3c5fb6c1d22b0194de2b70a3bd5. 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/FIHHR0390029 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1293a4976fcf4e81f29bb76d6a77f1dca1135a94ba7619d68a5cdf4d7d313753. 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/FIHHR0390030 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d11e0f0df7b0fb74bd6339496dcf1ad521a1a36f14ad9ad1d93274ff5514ccd. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIHHR0390031 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe94bb4366f01f6faf290b507c96808e4c9602ad79ed818b9ead53670e99f4c6. 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/FIHHR0390032 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bed1a0c010287c6bbb22537f14cd75ef3690bc5c3394ea033f62e216735b4a. 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/FIHHR0390033 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0795603065ac4a2933808ac784210fc49d120daeac398f2c3e7f7215a549e2. 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/FIHHR0390034 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a41edadd6c6849c21eb3f6e67132d64f77521978b91f1e69e34377d46deda66. 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/FIHHR0390035 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbac73ba1c3ff358f884499ae44195d4200c6a5f93a80551897a23b3bce78d0f. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/FIHHR0390048 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532bb19ae74693c97e2b8682cbd9c2c10ceda020cbf696f67a87bbfe51fcaa2. 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/FIHHR0390036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab834e525a05f2969ff3b3d9910cda061532c775d3dbfe933a4fb8e76ca91a3. 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/FIHHR0390049 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322cfb67494ea4c222a8d3b66cb31969e2ef8e3e247a1fa1caae8b25bbfde3f5. 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/FIHHR0390037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d6ecb716cc719d97e63cfe40964d28a007a149d48bc4fe9c1fdd39273f6141. 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/FIHHR0390050 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49383bea1bd7a8127252f698da7c9f02791c18650b53d7ddbf924d47a1b8deb3. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FIHHR0390051 — a six-check JSON result.
Bortz: Hans Namn Var Orestes (His Name Was Orestes)
Greek Passion, H. 372, Act III, Scene 5: This Night I Understand (Manolios, Voice, Yannakos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5dd85e5eed5dde5dc68f8c80492b42a03b3c8f6ddcf8ea5772dd8e226f627. 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/ATMA40510947 — a six-check JSON result.
Greek Passion, H. 372, Act IV, Scene 1: God Called Up the Day (Commentator)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a62a5833e7ffbec8d97cca562a6cb050fc9587f1e43ccf28d53f374bd71c401. 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/ATMA40510950 — a six-check JSON result.
Greek Passion, H. 372, Act IV, Scene 2: Then, Winter Arrived (Commentator)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c3e4ece114928f517fdcf42ab8c363ce566419d436233bcd2a17a92548e9b9. 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/ATMA40510955 — a six-check JSON result.
Tapiola Chamber Choir and Friends of Sibelius and Norjanen, Hannu (conductor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afa28c1684fbdcb53505ba07eafba247037f5672896b3497576526c3410fe18. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FIFIN9800053 — a six-check JSON result.
Finnish Historical Choral Works: Legends 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e4b19c98ee7a283058eebcf8eb2baef55866472bde8a9b588682d6851470a3. 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/FIFGL8500020 — a six-check JSON result.
Starke Stücke. Richard Wagner. Der Ring des Nibelungen. Das Rheingold