thumb|right|Hans Knappertsbusch Hans Knappertsbusch (12 March 1888 – 25 October 1965) was a German conductor, best known for his performances of the music of Wagner, Bruckner and Richard Strauss. Kna
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 0xa078b1d36c9f0090871bbaef7d454094489fd9debfc4d44600e34f444ef16654. 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/913855fe-ccfd-4e6f-b283-0dc5d566c9fb.json and https://artists.proofprofile.net/proofs/artist/913855fe-ccfd-4e6f-b283-0dc5d566c9fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wagner: Lohengrin, WWV 75 (Bayerische Staatsoper Live)
Wagner: Die Walküre, WWV 86B & Siegfried, WWV 86C (Highlights)
Anton Bruckner: Symphony No. 3 "Wagner" - Richard Wagner: Parsifal (Kundry's Aria), Tristan und Isolde (Prelude & Liebestod)
Wagner: Die Walküre, WWV 86B (Live Recordings 1958)
The Essentials: Greatest Classics, Vol. 1
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 0x6b4083b1491cdb7a3f0ec64c6e6721fe917271889819423909f08a7f95d07e7a. 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/USB8U1611304.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d1bb2a3a9d8ef43ade57485403ca119da4793bcc5fcd1f8b7e72f35b6878b2. 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/USB8U1611314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630ca71269ce99c0521393ab0876f42c0a2dc82113c9e9de385d9cf0a12f5716. 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/USB8U1611320.
Thaïs: Thais, Act II: Meditation (version for violin and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2900e20644aca9f861fb659b8dbb726ee2738dccf9f139b7170fa1f462dd345e. 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/USB8U1611329.
Suite for Jazz Orchestra No. 2: Jazz Suite No. 2: VI. Waltz No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4e2f21feb0b9223e895cd8b6f39f322d8c1c796589f8e35f5cade6f12e977d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USB8U1611331.
Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251043f18220a915481095f55b53eb13b868dd2657ba23c3047b91f17cc4287b. 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/USB8U1611338.
Hans Knappertsbusch conducts Studio & Live Performances (1929-1944)
Wagner: Parsifal, WWV 111 (Excerpts) [Remastered 2021]
Wagner, R.: Parsifal (Excerpts) [Opera] (1942)
Wagner: Highlights from The Ring Cycle - Essential Music from Der Ring des Nibelungen with Ride of the Valkyries, Siegfried's Rhine Journey & More
Wagner: Parsifal by Hans Knappertsbusch (Remastered 2023, Bayreuth 1962)
Parsifal: Vom Bade kehrt der König heim (Gumemanz, Parsifal) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a3f3a4aecda151425c06b30785fa7cb13cfc47e2aabb2e3ecc475d8b09dffb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PLH492328363.
Parsifal: He! Ho! Waldhüter ihr (Gurnemanz, Ritter) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90877e90d85cddf6e601e4bcfa6eab967f1783bf8eedee55549b6cadbbaa54d. 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/PLH492328355.
Parsifal: Verwandlungsmusik, Transformation Music - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344d253fcc5732589833bb2f4e87dfbf406906cd47560556159f113feb238835. 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/PLH492328364.
Parsifal: Enthüllet den Gral (Titurel, Chor) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba690b15f620f00e728e24a85f2cba7deeb645dba70301747ad047e73925f814. 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/PLH492328368.
Parsifal: Wein und Brot des letzten Mahles (Chor) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f58e82f85ae8201e083a8d92a0e6e572acea5558f7d00f5a64db35cfa3087f. 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/PLH492328369.
Parsifal: Vorspiel - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9b7aee43f283300573ca4a414a8bf939a7c953215a2c3a7e30942f80232580. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/PLH492328354.
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
Parsifal: Seht dort, die wilde Reiterin (Knappen, Ritter, Kundry, Gurnemanz) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0befc46b313ac9245dcddaca3471ba72088af76e35bffb3d850e2d8d0017715. 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/PLH492328356.
Parsifal: Nun achte wohl und lass mich seh'n - Zum letzten Liebesmahle (Gurnemanz, Chor) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cca9fb58f2a8671137abc3cf051388f680e3ebb044ba39c6d73226d23015441. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH492328365.
Parsifal: Recht so! Habt Dank! Ein wenig Rast (Amfortas, Ritter, Gurnemanz) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1af9b65f66b71130fefa0064409e6ccd68ae7be54b6d34423f99cabded43954. 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/PLH492328357.
Parsifal: Nicht Dank! Haha! Was wird es helfen? (Kundry, Knappen, Gurnemanz) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8c5ace75da4f962e0b3b89266bf17fd759d26f08f15dec064e4b3a5796ff2a. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/PLH492328358.
Parsifal: Titurel, der fromme Held (Gurnemanz, Knappen) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473a9297bd5ad9d0e7054b55681e4d22ce323e766853e84ec24839237d4c11d3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH492328360.
Parsifal: Weh! - Hoho! - Auf! - Wer ist der Frevler? (Knappen, Ritter, Gurnemanz, Parsifal) - Act 1 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf187baac1ddc81734c8971542a2009f354da8a0406eb614e5b312f6b6491bf4. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/PLH492328361.
Parsifal: Vorspiel - Die Zeit ist da (Klingsor) - Act 2 - Remastered 2023, Bayreuth 1962
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48d3ad7407e1a0ac13789230953b29fd25fcccd0bff651fbc0b193a4924102e. 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/PLH492328371.
Richard Wagner: Parsifal (Bayreuth 1956)