Siegfried Jerusalem (born 17 April 1940) is a German operatic tenor. Closely identified with the heldentenor roles of Richard Wagner, he has performed Siegfried, Siegmund, Lohengrin, Parsifal, and Tri
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 0x258d2a4705f92920d7456bf23bef2610dbb370b481e7315491b4af756e661799. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/088237d2-f02f-4bdf-94c2-980d643c5396.json and https://artists.proofprofile.net/proofs/artist/088237d2-f02f-4bdf-94c2-980d643c5396.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wagner: Tristan und Isolde, Act 1: Prelude
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 0x734f8cc1297cbda1ccbbe1349014338a2c8e4a7f6daa85bb79ec337b0b134c20. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA809428601.
Wagner: Tristan und Isolde, Act 1: "Westwärts schweift der Blick" (Isolde, Brangäne, A young sailor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5682dc0a00d35b03faed0cc91259b44a0dd370c93624df256bbcfc165319139d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEA809428602.
Wagner: Tristan und Isolde, Act 1: "Frisch weht der Wind" (A young sailor, Isolde, Brangäne, Kurwenal, Tristan, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbad50ab455d42161200c12c5094d393b06937b5e76e6e0442c9a5a7ed8cbb95. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEA809428603.
Wagner: Tristan und Isolde: Prelude to Act 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb293cec841c405e8b0345b233b9559b2bd848d9ed8ea4a93f945797fcf376d. 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/DEA809428610.
Wagner: Tristan und Isolde, Act 2: "Isolde! Geliebte!... Tristan! Geliebter!" (Tristan, Isolde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c0185827b5f59044feae7e1e0c2c619bd3b8a5644a1f195ae5a7e118fedcce. 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/DEA809428612.
Wagner: Tristan und Isolde, Act 2: "Einsam wachend in der Nacht" (Brangäne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4014f728272a2f6a7ae5df06c50a5532e76be287952dedc5aa2d86c2756f530a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA809428615.
Wagner: Tristan und Isolde, Act 2: "So starben wir, um ungetrennt" (Isolde, Tristan, Brangäne)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ac8f0290b70244b19f891771b5fe296a3195bef3f233ee664372e9575c9cc. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/DEA809428617.
Wagner: Tristan und Isolde, Act 3: Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcf5abd1915a7e295092296aee7d2d5b4556d07e6dbf78f3e8150419f16cd9f. 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/DEA809428621.
Wagner: Tristan und Isolde, Act 3: "Noch ist kein Schiff zu sehn!" (Kurwenal, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ad3e354e1c15584a0fef55893221f63402033e659c41ae8a040ed7df917b31. 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/DEA809428625.
Wagner: Tristan und Isolde, Act 3: "Mild und leise wie er lächelt" (Isolde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5304464788e522dc8b3e552c447455c43b8c90c077119124df467a03057159ed. 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/DEA809428632.
Wagner: Tristan und Isolde, Act 1: "Herr Tristan trete nah!" (Isolde, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43e69c1e9c45964832cd665e4f201a65d8d1ed9c85a380989b954690b0399f4. 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/DEA809428607.
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
Wagner: Tristan und Isolde, Act 1: "War Morold dir so wert" (Tristan, Isolde, Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94430e50622f7ca036288ff54cb7c6eaa81a78b2a7acf895c35f9d11c31a6222. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809428608.
Wagner: Tristan und Isolde, Act 1: "Tristan!... Isolde!" (Isolde, Tristan, Brangäne, Kurwenal, Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ac8b14fb28c3d1fd1519ad74e49635bce168da9a0ee75ab1bc334b7a13781. 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/DEA809428609.
Wagner: Tristan und Isolde, Act 2: "O eitler Tagesknecht!" (Isolde, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e474c5111e2248dbf454b6b9bce0115291eefd08239770964c7629e7f48f9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEA809428613.
Wagner: Tristan und Isolde, Act 2: "O sink hernieder, Nacht der Liebe" (Isolde, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7416abf5b2d6cfe6a01cfaca5178938e25ee18cd2ef6dd8b0d2434c6941bb90. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEA809428614.
Wagner: Tristan und Isolde, Act 2: "Lausch, Geliebter!" (Isolde, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b63c1c7c016aa95ddd4008701bf98b383129f1b03a991dec805143e7a060a6f. 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/DEA809428616.
Wagner: Tristan und Isolde, Act 2: "Rette dich, Tristan!" (Kurwenal, Tristan, Melot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c79d852b0606804a4aebb3d0024794ef1784677230bf5debe6309d6d6db40. 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/DEA809428618.
Wagner: Tristan und Isolde, Act 2: "Tatest du's wirklich?" (Marke, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e2da37ba78e28b019de184cf953b374c7bdcfc714750621c0ac9dfbf76eaad. 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/DEA809428619.
Wagner: Tristan und Isolde, Act 2: "O König, das kann ich dir nicht sagen" (Tristan, Isolde, Melot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15cbe86e1df31e71dda46fa7cdbf46c814be2583d57802316fc5ad141cd4fa0. 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/DEA809428620.
Wagner: Tristan und Isolde, Act 3: "Kurwenal! He!" (A shepherd, Kurwenal, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b4105de06b9155ccab7fc3697de36d95e672b6f17c546ce81a94e90df4c84c. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/DEA809428622.
Wagner: Tristan und Isolde, Act 3: "Dünkt dich das? Ich weiss es anders" (Tristan, Kurwenal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f4b06d93ccb9bfa86cceb0248c0c2af1a0a3e52045bb184fea1b186ed1085a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809428623.
Wagner: Tristan und Isolde, Act 3: "Isolde kommt!" (Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479085d0153b35b96e28f2ddf9c42969bb74792015ede501aba9a185edb68f0d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEA809428624.
Wagner: Tristan und Isolde, Act 3: "Bist du nun tot? Lebst du noch?" (Kurwenal, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6bf281f30b2781a980d43678e8fd9643a3458eaf363dd782cb5b95badbc8dc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEA809428626.
Wagner: Tristan und Isolde, Act 3: "O Wonne! Freude!" (Kurwenal, Tristan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87df2ffeba09f7593488f06756841b2cf5bb1ec727d836d8e8d9d37a5f6e09df. 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/DEA809428627.
Wagner: Tristan und Isolde, Act 3: "O diese Sonne!" (Tristan, Isolde)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511057db25432c26d7093522ed0c38113f78855f4a5c3d07d536b8d523546ad9. 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/DEA809428628.
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - "O Freunde, nicht diese Töne!" (Ode to Joy) [Excerpt]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8b4f8c12e619d10efe0931aa441df6c0d324d91ca41411051fb22e546bb21. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ209200011.