thumb|Wolfgang-Ablinger-Sperrhacke Wolfgang Ablinger-Sperrhacke (born 1967 in Zell am See, Salzburg) is an Austrian operatic tenor. Life Ablinger-Sperrhacke studiedWolfgang Ablinger-Sperrhacke Op
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 0x1cee02456d3bd6f2b381f2c8ec1db16eda54e1fb4e4a4a347f8928d515992c75. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acd34053-5623-4f3d-a37b-1ea99dbc1543.json and https://artists.proofprofile.net/proofs/artist/acd34053-5623-4f3d-a37b-1ea99dbc1543.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schoenberg: Gurre-Lieder (Live at Semperoper, Dresden)
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: "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.
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 1: "I komm' glei"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3c241f431c3c16e8561c15dbdaa83002b29408307351e71f917da36bf5b75d. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GBBBA0942908.
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.
Mozart: Die verstellte Gärtnerin, K. 196 (Sung in German) [Live]