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 0x5cb1312490dd6ac9bb9319ee73d83db016de9a2c18cdebdae92499d3fcc73c11. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b838584c-d049-4f42-b177-fff563a923a7.json and https://artists.proofprofile.net/proofs/artist/b838584c-d049-4f42-b177-fff563a923a7.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 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 0xbaab91817c8ef45c6d6b57f4a4b62ba597ce36285fa9bc177061e4e323d5fa3f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7199646c6fdc50d64cff983d3bcc36834bbe4cf434dea94921f1827fb64740ec. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/NLE421101013.
Lohengrin, WWV 75, Act II: Gesegnet soll sie schreiten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc95f6f4affc31c897619220895442fc35a8d9a637df6b3d0311d73e18e1bfaa. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdc6063cd3ce9e82081de7988489b0f82a086e1d2024e4d7b8d1bb601856b49. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101027.
Lohengrin, WWV 75, Act I: Hört, Grafen, Edle, Freie von Brabant (Herald, The King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961ad4fed132e18853daaaf743f80b9663ef661b535466afe0d4b155391ca16a. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101002.
Lohengrin, WWV 75, Act II: Erhebe dich, Genossin meiner Schmach! (Friedrich, Ortrud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e6273d852b6ca0061e5e838db108138b0dba6da889650fcd936f032904154a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101014.
Lohengrin, WWV 75, Act II: Zurück, Elsa! Nicht länger will ich dulden (Ortrud, Elsa, The King, Lohengrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5c9fd54bee78ba360208ed00fca70e142cd547b98aba9f072fd66c00f875d0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLE421101023.
Lohengrin, WWV 75, Act III: Treulich geführt ziehet dahin (Ladies, Men, Women)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbe1227fc6460b267a2b3563761ad3f87284f5f38272678cb7b5c503088fdb2. 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/NLE421101028.
Lohengrin, WWV 75, Act I: Dank, König, dir, daß du zu richten kamst! (Friedrich, Herald, The King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7351248aa6d974f70f5d6d66ca5777a5a453c6f6a8e2090b1b65f147cd2de534. 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/NLE421101003.
Lohengrin, WWV 75, Act II: Du wilde Seherin (Friedrich, Ortrud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcbef52d135379dd3ef61191c3b58a0c7dd8dd4c89f0969df7ba9af3d23942a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLE421101015.
Lohengrin, WWV 75, Act III: Das süße Lied verhallt (Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb60e329944f5478e8cb30cd757773af6ba55d2a667d741b97dbb6c1087cc475. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101029.
Lohengrin, WWV 75, Act I: Seht hin! Sie naht, die hart Beklagte! (The King, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f92f29fe766458b919f304d5df3501c8baea1655c9991a0aea46ce5e200cca. 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/NLE421101004.
Lohengrin, WWV 75, Act II: Welch ein Geheimnis muß der Held bewahren? (The King, Ortrud, Friedrich, Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79f68d58e4b83de9c9e1e90ce30ee80d2683f90f567766244e5bf86b810ab35. 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/NLE421101025.
Lohengrin, WWV 75, Act III: Fühl' ich zu dir so süß mein Herz entbrennen (Elsa, Lohengrin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03cbd3782d69f409a19cbf96ac91cd49132d60b82ddf397f78e72bdb64d35ff0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLE421101030.
Lohengrin, WWV 75, Act I: Einsam in trüben Tagen (Elsa, The King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4484aad7a369ad4c2ee1f48080b6c5c0923e5a9894acc489bf222fa69993c6c4. 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/NLE421101005.
Lohengrin, WWV 75, Act II: Elsa! (Ortrud, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f7f58aa0a96ab3e23a7bc418bb0a7a5cb9ffaaf5ce02ca69da1bd93ac07654. 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/NLE421101017.
Lohengrin, WWV 75, Act II: Lohengrin, WWV 75, Act II Mein Held, entgegne kühn dem Ungetreuen (The King, Lohengrin, Friedrich, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f021d8d70f87f185b809b5359c2898cf87726ab054dccaa2fa368dd7affc3f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101026.
Lohengrin, WWV 75, Act III: Atmest du nich mit mir die süßen Düfte? (Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03997689b2d941c3e94091ab0cd4d0b6c7e1d8877721245d6891e42a90268275. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLE421101031.
Lohengrin, WWV 75, Act I: Mich irret nicht ihr träumerischer Mut (Friedrich, The King, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76dd8fc12f8f363522d1d9ba4fde1afa13c6c7848826da97c17127e18211c48. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101006.
Lohengrin, WWV 75, Act II: Entweihte Götter! Helft jetzt meiner Rache! (Ortrud, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f83da890e46ac5ba7f2de9c5be5a094fee8d9df9d5e2e668fe2c82da563d148. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLE421101018.
Lohengrin, WWV 75, Act III: Höchstes Vertraun hast du mir schon zu danken (Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843c24f2786eada5880fca877f893ab54ac130cfc4ca6d120edf148979f38739. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/NLE421101032.
Lohengrin, WWV 75, Act I: Wer hier im Gotteskampf zu streiten kam (Herald, Friedrich, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fce260c802728b56dcdec01c0222fd2c787f2523c15d5595b54e9a113710628. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLE421101007.
Lohengrin, WWV 75, Act II: Wie kann ich solche Huld dir lohnen (Ortrud, Elsa, Friedrich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2668fc5b49232b51f7d3bb8b1eeba6229c424f7ae732ad4cb029c353899fc1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101019.
Lohengrin, WWV 75, Act III: Weh, nun ist all unser Glück dahin! (Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9fe6260a7a3fe08f6c78700991bc0e8745930bd6d744a3b5919b22061e5f37. 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/NLE421101033.
Lohengrin, WWV 75, Act I: Nun sei bedankt, mein lieber Schwan! (Lohengrin, The King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83138d1a0ae9deedcc8ac39ab68d3ce200367abb6f711fb85d228ced12ea34e4. 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/NLE421101008.
Lohengrin, WWV 75, Act II: In Frühn versammelt uns der Ruf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8835ae11d6bd55142846d7409840945d30fc2054eda8647696a3d628339e89a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLE421101020.
Lohengrin, WWV 75, Act III: Heil König Heinrich! (All The Men, The King, Four Nobles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1f81852422c12f49812332b58cfe5ae2f43a6d96f60caa6fc76433a8bf60aa. 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/NLE421101034.
Lohengrin, WWV 75, Act I: Zum Kampf für eine Magd zu stehn (Lohengrin, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63842598b8f878b37e9b66d5609137b6fec6adf30ea8ad4259a2950f5358b3f2. 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/NLE421101009.
Lohengrin, WWV 75, Act II: Des Königs Wort und Will' tu ich euch kund (Herald, Four Nobles, Friedrich, Four Pages)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eceda2db8d8bdad07cf460f5c9f0eace8660f449767929c0289503c38ac3cda. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101021.
Lohengrin, WWV 75, Act III: Macht Platz dem Helden von Brabant! (The King, Lohengrin, The King's Men, Ladies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f79c46213b51d9cc3ecaa7144926f5bb4070d8985af247b980449fea896c61. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101035.
Lohengrin, WWV 75, Act I: Nun hört! Euch, Volk und Edlen mach' ich kund (Lohengrin, Friedrich, The King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14cd54aae61d6d00687177183a4427a5f4dc6eb38b89659b7399db5248aeecf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101010.
Lohengrin, WWV 75, Act III: In ferner Land, unnahbar euren Schritten (Lohengrin, The King, Men, Women)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ccfc0d8bb829f70a45729141712e9be7e0fc567677e8bbfa5fc5eec67ee1e6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101036.
Lohengrin, WWV 75, Act I: Nun höret mich und achtet wohl (Herald, Lohengrin, Friedrich, The King, Elsa, Ortrud)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3615a06c20dfccd6b989357152ef04f2102ee872fd5d51b5e1482d5207f570cc. 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/NLE421101011.
Lohengrin, WWV 75, Act III: Mein lieber Schwan! (Lohengrin, The King, Men, Women, Ortrud, Elsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79933f857e8136a6f96978033a9c2be62ed415761bb4072cbb484ae835e183. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421101037.
Lohengrin, WWV 75, Act I: Durch Gottes Sieg ist jetzt dein Leben mein (Lohengrin, The King, Elsa, Ortrud, Friedrich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ab2e8664bb137d989c3fe3d1e949e248cbecd6aafba4987582de6c853945f2. 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/NLE421101012.
Der fliegende Holländer, WWV 63: Ouvertüre (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1bae9db9a0b3c16d207ccfadee3b9c60a2021bb15ee104eaa3814c804ddb2f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421001901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6a740d0a4504ef76bbb18f8490b143564d415729e7e35e9eb953effe6e063f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21452447.
10. Festliche Operngala für die Deutsche AIDS-Stiftung