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 0x6d5cca8cd25cc729dcb11d316df783fff807722b03f5fbcca598ec0b0875c4c7. 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/bc152945-60c5-4df9-903d-6854b78ec922.json and https://artists.proofprofile.net/proofs/artist/bc152945-60c5-4df9-903d-6854b78ec922.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Rosenkavalier, Op. 59 / Act 1: Introduction
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 0xe42e3b8658f422259dbafc2d631d1359bf6fcf336d51e101cfca02f461294241. 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/GBBBA0942901.
Der Rosenkavalier, Op. 59 / Act 3: Introduction and Pantomime
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6556f2d8c0cbdcb218f7275e0d4c63bae0db85aff5c85c3db913fdf1c6d4ddea. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBBBA0942930.
Der Rosenkavalier, Op. 59 / Act 1: "Wie du warst!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f82202ef08112a5e1f35c02bbb205553d1b8aca00a1d990ac90c5b6b9536a1f. 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/GBBBA0942902.
Der Rosenkavalier, Op. 59 / Act 1: "Marie Theres'!" - "Octavian!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e07891551be38b4b23eaece42e5bc645269891c11487dad4e3281c23efdb975. 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/GBBBA0942903.
Der Rosenkavalier, Op. 59 / Act 2: "Ich kenn' Ihn schon recht wohl"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b692838118f313af96de371c5b6cc6cc2e7ed58f9b02df523fa68c544234c84. 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/GBBBA0942919.
Der Rosenkavalier, Op. 59 / Act 3: "Es ist ja eh all's eins"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0173f5c4dba069c9f4c7aadfbba3a52173992c422c8e4155052274dc2ad4a407. 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/GBBBA0942933.
Der Rosenkavalier, Op. 59 / Act 1: "Hat Sie schon einmal mit einem Kavalier"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8449a440ff6026108c2ba2ab01acc0401b2e5257768b67091667b3a4b67841d. 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/GBBBA0942906.
Der Rosenkavalier, Op. 59 / Act 3: "Zur Stelle! Was wird von mir gewünscht?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ac59621cdbdecbc62098339aebb3d8c90dc90e4ca4446ab6092083f9492c0f. 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/GBBBA0942936.
Der Rosenkavalier, Op. 59 / Act 3: "Sind desto eher im klaren"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b259fe9480e8de6c0a19f33a4e22d303bd016432c824f441e2445c74dc83c32. 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/GBBBA0942937.
Der Rosenkavalier, Op. 59 / Act 2: "Mord! Mord! Mein Blut!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7f356fcb93597b7f0e3d5cabe03e42f52810b02fc9a3ba07462757f342dc42. 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/GBBBA0942924.
Der Rosenkavalier, Op. 59 / Act 3: "Bin glücklich über Massen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52238a4eeda04b7e4b89b836abdcc4ff6ff1e6d71927d5c0ac656cdabf939d2. 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/GBBBA0942938.
Der Rosenkavalier, Op. 59 / Act 2: "Herr Schwiegersohn! Wie ist ihm denn?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91af89556760d4788d253fb707140d395628aada084e398d3c627baded0f3f1b. 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/GBBBA0942925.
Der Rosenkavalier, Op. 59 / Act 3: "Laß er nur gut sein und verschwind Er"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f58923fa27df914e0c9ec0686188a9d491b4619bc88345101c6239ec2cd1dcb. 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/GBBBA0942939.
Der Rosenkavalier, Op. 59 / Act 1: "Mein lieber Hippolyte"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58d9577520b4f66d342d58ced75ad3de4d796875b3fe5fefae24a9f5056c550. 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/GBBBA0942911.
Der Rosenkavalier, Op. 59 / Act 2: "Is gut! Is gut! Ein Schluck"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6a19e058b3dd146a9f6a5a822fa502b135f2e28c9a6104939549edcc22459d. 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/GBBBA0942927.
Der Rosenkavalier, Op. 59 / Act 3: "Mein Gott, es war nicht mehr als eine Farce"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9157ab94e250883d1a3b20ad4fb3ce12a4e1a5b245f40d7ace41d5a4238f3ec9. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBBBA0942941.
Der Rosenkavalier, Op. 59 / Act 1: "Ach! Du bist wieder da!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652be409530447177fa7e46b8ec2d4059d747be1276dd55eb3ef41411dbfa841. 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/GBBBA0942913.
Der Rosenkavalier, Op. 59 / Act 2: "Da lieg' ich!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cdb1430263e7abb57dbafc636f00b87152c6f41e6ba5517e35de2cb5177d94. 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/GBBBA0942928.
Der Rosenkavalier, Op. 59 / Act 3: "Marie Theres'!" - "Hab mir's gelobt, Ihn lieb zu haben"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb161c3d0232be18dbb7bbbbb15b0b796ac75ea58baa2a6aa6d5e5b11ede83b6d. 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/GBBBA0942942.
Der Rosenkavalier, Op. 59 / Act 3: "Ist ein Traum, kann nicht wirklich sein"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60920bb85b0fda23018844da29e6481b542c25f5e548a591b99f944ad094de3c. 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/GBBBA0942943.
Der Rosenkavalier, Op. 59 / Act 1: "Ich hab' ihn nicht einmal geküßt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffed492919f24ea5cea6be65590df01345654777a611b77f018170b885f2f6aa. 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/GBBBA0942915.
Der Rosenkavalier, Op. 59 / Act 3: "Hab'n Euer Gnaden noch weitre Befehle?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedeb7c86d142a4e0639ee444fa169ce66c2f3dc3dbc95762b782fbb9d87361d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBBBA0942931.
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
Der Rosenkavalier, Op. 59 / Act 3: "Nein, nein, nein, nein! I trink' kein Wein"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfc5bbcc73df600257a9cd904fe6fd801776a34138213a1224f1cb0d3fee053. 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/GBBBA0942932.
Der Rosenkavalier, Op. 59 / Act 1: "Quinquin, es ist mein Mann!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cc85a94047e640697eb410b03a7af301d53cc698294c6188a51d95232dac80. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBBBA0942904.
Der Rosenkavalier, Op. 59 / Act 1: "Selbstverständlich empfängt mich Ihro Gnaden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcc01e551d964e20ff15fc89be8150d67f8c5d00e557ca93052103ac2ce2149. 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/GBBBA0942905.
Der Rosenkavalier, Op. 59 / Act 2: "Jetzt aber kommt mein Herr Zukünftiger"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90588f0e9e8ac2f1461749a4c237b7b7e1d5c3731124754919858a81c32bc30. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0942920.
Der Rosenkavalier, Op. 59 / Act 3: "Da und da und da und da"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957eb315f54406c1dbb62174acb41cff530a200a1d66e1da4a4c6484ab6d143c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0942934.
Der Rosenkavalier, Op. 59 / Act 2: "Eh bien! Nun plauder Sie uns eins"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c15285852e5245800086ae290c10725235548fa5c31cf77ec341d671c3f551. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBBBA0942921.
Der Rosenkavalier, Op. 59 / Act 3: "Halt! Keiner rührt sich!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6857cecbd42953fe76a019fcedd420bf3121dafe2c009099efd60676b3c90ef. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBBBA0942935.
Der Rosenkavalier, Op. 59 / Act 1: "Nein, er agiert mir gar zu gut!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b989809205aa62dcae5d5d405d8f83cd9f0ab1e83682c1771a55be26376471. 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/GBBBA0942907.
Der Rosenkavalier, Op. 59 / Act 2: "Herr Baron von Lerchenau!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd30c525b91e6ce0927eb3f03c4d872e967347109d7f7d19d898743af94dcec7. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBBBA0942923.
Der Rosenkavalier, Op. 59 / Act 1: "Di rigori armato il seno"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9ea24ef76f036179787169a6e42ef23606662c55fc9a610d3382733cfd0990. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBBBA0942909.
Der Rosenkavalier, Op. 59 / Act 1: "Als Morgengabe"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a085e901d3607904ba6a908b7b7511d7923a8281fb36e58d8cf478ff55b39a3. 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/GBBBA0942910.
Der Rosenkavalier, Op. 59 / Act 2: "Blamage! Mir auseinander meine Eh'"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92012df4043c4685d15a5736f55c62f5dd0c8cfdac42c99656206448248bc7e3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0942926.
Der Rosenkavalier, Op. 59 / Act 3: "Leopold, wir gehn!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30db23c233f98853753d7cd08d377d50780715fe90cf705636d86a3c34413c1a. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/GBBBA0942940.
Der Rosenkavalier, Op. 59 / Act 2: "Ohne mich, ohne mich, jeder Tag dir so bang"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96d8759b4a82cb1184eed6ceedbf09a282715d9ef29816440aff1de752e967c. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBBBA0942929.
Vocal Recital: Hawlata, Franz - Lortzing, A. / Weber, C.M. Von / Cornelius, P. / Schubert, F. / Nessler, V. / Flotow, F. Von / Bruch, M.
Wagner: Die Meistersinger von Nürnberg, WWV 96
Opera Arias (Bass): Hawlata, Franz - Gounod, C.-F. / Spohr, L. / Schumann, R. / Meyerbeer, G. / Mussorgsky, M.P. / Boito, A.