Andreas Schager is an Austrian operatic tenor. He began his career as a tenor for operettas, but has developed into singing Heldentenor parts by Richard Wagner including Tristan, Siegmund, Siegfried 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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a1a80f04e6eb150687f0c4c6778f6d4c2b21c69d16efda11d92071035090e7. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f23200f-4a42-48a3-b601-8b7629bc3846.json and https://artists.proofprofile.net/proofs/artist/4f23200f-4a42-48a3-b601-8b7629bc3846.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Parsifal, Act I: Weh! Weh! – Hoho! - Live
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ffedbd6cf6f732781a01129257d47520baa2f07485dc6935118b7ba1b59d59. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEN962433308.
Parsifal, Act I: Nun sag: Nichts weißt du, was ich dich frage - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81fd96e4c0313999d84fb77a516ab21a42b788b8f3b31b2731fe289a01a1919. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DEN962433309.
Parsifal, Act I: Vom Bade kehrt der König heim - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1592d900433ddcb0090f8fc1735c40db017a10de2e42a3b853a4eb4a98efdc. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEN962433310.
Parsifal, Act II: Hier war das Tosen! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33020fd8015c036de429faeec7f9d030c5c46bcd28eaa425b069d3aa0a0cdf9c. 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/DEN962433320.
Parsifal, Act II: Komm, komm! Holder Knabe! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb030ff8099aec9412057d90bc8bf954b428087fe5356f102400a60b66e62aa. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEN962433321.
Parsifal, Act II: Lasst ab! Ihr fangt mich nicht! – Parsifal! Weile! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bf17c2511b735f7cd98e4d714bdc1ece05fd71a41e21638e00aa9f763c66fd. 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/DEN962433322.
Parsifal, Act II: Wehe! Wehe! Was tat ich? Wo war ich? - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490d785b1869d15c0e0e2f0e66094c7b5d6c6c7934555a9e47f0d83d897e189d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEN962433324.
Parsifal, Act II: Amfortas! Die Wunde! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47c99563d3b5cf4ad914e53b8752631132dffbcadf0bbe682fc53144145fd63. 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/DEN962433325.
Parsifal, Act II: Gelobter Held! Entflieh dem Wahn! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b615655ba14c8a35059c3ccd4965db3b42a223f0bf2904055408f80b3e113dc. 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/DEN962433326.
Parsifal, Act II: Nun such ich ihn von Welt zu Welt - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890e72d2fd9c4628b5c4fd7c76d61d323ebdf7019df9f78135fafd14ee05fd82. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEN962433327.
Parsifal, Act II: Vergeh, unseliges Weib! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99432ac9aeac1eabd6983a1cbc3a62005854a76a979af05e3eec730e8f639216. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEN962433328.
Parsifal, Act III: Heil mir, dass ich dich wiederfinde! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343a3b85f830e0f97c34e3263a6cc19399955ca55207ea71a0ba4fbfe77baa8d. 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/DEN962433332.
Parsifal, Act III: Nicht so! Die heil’ge Quelle selbst erquicke unsres Pilgers Bad - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f233acfa565360af730ec3b08a36b7c59f2d0798a7c6f5ec4e16cb23a713f2. 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/DEN962433333.
Parsifal, Act III: Wie dünkt mich doch die Aue heut so schön! - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac27572191f00734bdfafd77e53ddb09a9eb11823b047460671be1df2c1d3fa. 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/DEN962433334.
Parsifal, Act III: Nur eine Waffe taugt - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd0b7bdde4d9565f5a8738fb875a1eab7e4fc42af3139cf67cfb6d4cf33818d. 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/DEN962433338.
Der Freischütz, Op. 77, J. 277, Act I: O! diese Sonne!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21749180d2ebdb68b6e2b3eb1ee5ab13e890d1a46f9179e724528232591447aa. 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/NLE421906504.
Der Freischütz, Op. 77, J. 277, Act II: The Wolf's Glen/Die Wolfsschlucht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1b08ff6bc3b7bd3e32f132c63ac102d33c4ae7f6efa341c42ed6b04abe5b1d. 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/NLE421906517.