Victor Conrad Braun (August 4, 1935 – January 6, 2001) was a Canadian baritone who had a major international performance career in concerts and operas that lasted more than 40 years. While he was an a
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 0xe643a9f69b74ed3556772ebbf55fea0d748c49104fa29569b76d5146136ee259. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8719684b-3ac7-4b90-9409-662812764238.json and https://artists.proofprofile.net/proofs/artist/8719684b-3ac7-4b90-9409-662812764238.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tannhäuser, WWV 70 - Paris version / Act 1: Overture . . . "Naht euch dem Strande"
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 0x2cf04baa3d29b88d4ce9deeef2410f7446498ae9bb5e892d8e676d540f25adec. 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/GBF071741501.
Tannhäuser, WWV 70 - Paris version / Act 1: "Stets soll nur dir, nur dir mein Lied ertönen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b606360ebb3f08a7ab94fcb13ac1cc38624b96d2fa29040b377c7ac4f9ec7e0. 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/GBF071741505.
Tannhäuser, WWV 70 - Paris version / Act 1: "Zieh hin, Wahnbetörter, zieh hin! Geh!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefddba7bd6e4e74e4bc909b860cee9ed4e058a29b703b4e8e641166244aad82c. 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/GBF071741506.
Tannhäuser, WWV 70 - Paris version / Act 1: "Frau Holda kam aus dem Berg hervor"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2db141a73f3437d3b2258cdfae8b31be6f79856e21552800bdfd24d20b1cb8. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/GBF071741507.
Tannhäuser, WWV 70 - Paris version / Act 1: "Zu dir wall ich, mein Jesus Christ"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acb8a18f01370e1f97ca21e4c240495a2ceeed2655a26320895fb944fa1baf0. 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/GBF071741508.
Tannhäuser, WWV 70 - Paris version / Act 2: "Dich, teure Halle, grüß ich wieder"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbfe2573ec53bd32b2580574137fa90be32582575998a253689274babd3fdbf. 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/GBF071741511.
Tannhäuser, WWV 70 - Paris version / Act 2: "O Fürstin!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca10ad2eb51e83736a23b90cf394ae42db331849d94c1ccd2795488bf2895d29. 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/GBF071741512.
Tannhäuser, WWV 70 - Paris version / Act 2: "Blick ich umher in diesem edlen Kreise"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1607c36ae3d8a12ca379bce360436b7c0f77055f70b5c96d53106e97d462224. 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/GBF071741515.
Tannhäuser, WWV 70 - Paris version / Act 2: "Heraus zum Kampfe mit uns allen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b09e4e5561f8c6b47d5757bdcd105e2861bc333f0a3497c71166a38ca6cdc5. 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/GBF071741517.
Tannhäuser, WWV 70 - Paris version / Act 2: "Ha, tör'ger Prahler Biterolf!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5d53a7c5614d76b37823d41f695713878ec556d2e8880b8e5582caafacb3a1. 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/GBF071741518.
Tannhäuser, WWV 70 - Paris version / Act 2: "Ein furchtbares Verbrechen ward begangen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2ad58dbd8e5adb31d421cdf58ef37c57dc02f70b7c86a652618c988a4d8cf6. 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/GBF071741523.
Tannhäuser, WWV 70 - Paris version / Act 2: "Mit ihnen sollst du wallen"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247865dc8cd3ad9a429197b7e9a61dfa61a1df685031e75639842b39e6789987. 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/GBF071741524.
Tannhäuser, WWV 70 - Paris version / Act 3: "Ich höre Harfenschlag - wie klang er traurig"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa61e5136a047ae19d23decbc866b422c9fb43a493a3961142ac3bfd7309b10a. 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/GBF071741531.
Tannhäuser, WWV 70 - Paris version / Act 3: "Inbrunst im Herzen, wie ein Büßer noch"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dae5a10a6b4546b1575e84131bb289067220ba35b5aac614e33f043b3a0d89. 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/GBF071741532.
Tannhäuser, WWV 70 - Paris version / Act 3: "Dahin zog's mich, wo ich der Wonn und Lust"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b01081274b8bfab4c6f5efaa0e485cf64a434a28e9e89b33e5a5171d5ae53a. 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/GBF071741533.
Tannhäuser, WWV 70 - Paris version / Act 1: "Wer ist der dort in brünstigem Gebete?"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f72d765e568e071f4c0d1e0c08812045d72321f31450e6f050da76147a257f. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBF071741509.
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
Tannhäuser, WWV 70 - Paris version / Act 1: "Als du in kühnem Sange uns bestrittest"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac3f4bb9a9295def430ae59b26b128b94b99fb03a5a20bf80f8358684944794. 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/GBF071741510.
Tannhäuser, WWV 70 - Paris version / Act 2: "Ha, der Verruchte! Fliehet ihn!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda5dec94e8a52df05c05414cab76a09991ff824313b89eaa3afee5fd850ee03. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/GBF071741520.
Tannhäuser, WWV 70 - Paris version / Act 3: "Wohl wußt' ich hier sie im Gebet zu finden"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2c3463f299b11fab32ddfcd1ba547cf1c2e9658fba33f877c549b024739662. 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/GBF071741526.
Tannhäuser, WWV 70 - Paris version / Act 3: "Beglückt darf nun dich, o Heimat" (Pilgrims Chorus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3084c2f9673fe3e509399338be1ad8260b03ac65508428f206cecf72a4ac15e9. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/GBF071741527.
Tannhäuser, WWV 70 - Paris version / Act 3: "Wie Todesahnung, Dämm'rung deckt die Lande"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f260d5b9a863824bdfb6131325df4ad4aea02501da287af0bfdb50d48c51310. 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/GBF071741529.
Tannhäuser, WWV 70 - Paris version / Act 3: "O du mein holder Abendstern"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116c4ebd167c3ef667fd618d12b7102c81095f067d2ba1bfb173ca2d49fe6ac4. 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/GBF071741530.
Tannhäuser, WWV 70 - Paris version / Act 3: "Willkommen, ungetreuer Mann!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89a6a4dc8ba470ccebb9ba3e255399739517931876a7a2b1c328d256ca9e94f. 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/GBF071741534.
Best of Opera - Die 50 größten Opern-Arien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89431311266e38f7d20c277b4a9aa056be3be8f79ce6b952556f11684b0e016. 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/GBF077040127.
Tannhäuser (Paris/Vienna Version), Act III: Beglückt darf nun dich, o Heimat "Pilgrims' Chorus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89431311266e38f7d20c277b4a9aa056be3be8f79ce6b952556f11684b0e016. 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/GBF077040127.