Wolfgang Anheisser (1 December 1929 – 5 January 1974) was a German operatic baritone. He was the leading baritone at the Cologne Opera from 1964 until his tragic death on stage there ten years later,
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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 0xad80d2fa696c847a77fecb8645a257da8223633deb4e2aadec6a79d96614cefc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54d91b6f-6acc-426d-b2ee-4d99f7d28da8.json and https://artists.proofprofile.net/proofs/artist/54d91b6f-6acc-426d-b2ee-4d99f7d28da8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster): Vorspiel (Orchester)
Chor der Wiener Staatsoper in der Volksoper
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 0x395954d8f9261b336d92157a26c86f767817ef9aeb4b95414d3d2f6c8bc671a1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEA340703193.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Hurra! Nur her (Chor - Schneck - Weps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec38a747e6ec0f34d9684e410f0db6a6368a4dca34718de07991b69583da53. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/DEA340703195.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Ha! Füchse in der Falle (Chor - Schneck - Weps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18aabff1edf4863dede9218b7c239fcdb4b319580964bac94721e90f9f080e8. 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/DEA340703196.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Grüß euch Gott, alle miteinander (Adam - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd411521510d65966878e59d7b2f4699b6f72bc872497d70c1af385ac78ac8c16. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEA340703198.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Dialog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64464f24dde09389206ff01f14546b33a39d029cd49c3555fdf97f2fb2719f57. 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/DEA340703199.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Als dir die Welt voll Rosen hing (Stanislaus - Weps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b11d2b0829dd6b67b6e49139c0f5f08603bfd10994418eae1db831f454ffee. 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/DEA340703200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5417f326e34084c4de8b845e12d523bbbd7196620531321c525b9b02ff6dcda. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/DEA340703201.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Schnell, kommt nur alle (Kurfürstin - Adelaide - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48cb89b0cd293f37e36af9693c1b7250666c161f5c3b69a6c291608e8ea95ee. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEA340703202.
Der Vogelhändler, Erster Akt: Ich bin die Christel von der Post (Christel) - 1988 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ea24c1e7b5bb2f649510dcc0fcfa7260cba9def1cd0dcb2e9dbd10df525198. 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/DEA340703204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9020f2c52e3da482fd541af86ed9f283cceafeb97cb4f3bd33bb08838110ae5e. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DEA340703205.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Ach, ihre Reputation - Das geht ja vorderhand (Christel - Stanislaus - Weps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c98c23b544ecbff62f5ecc1affa4555cfdbe3a1976b0b5bc57e19df6725da36. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEA340703206.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Vivat! Hoch! Hurra! (Schneck - Weps - Kurfürstin - Adam - Adelaide - Christel - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843114f4d22196c05734f7b7bd5d71b7236394905dab3563a72924cda700c5a2. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEA340703208.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Schenkt man sich Rosen in Tirol (Schneck - Weps - Kurfürstin - Adam - Adelaide - Christel - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4652da6f6bc08dc3e06895a745fc1f5afe188fbc468cede04b835b94b6e8027. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEA340703209.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Adam! Adam! - Die Christel (Schneck - Weps - Kurfürstin - Adam - Adelaide - Christel - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775b6f3ee5da04d6c902dc2ee991d08883a74a3dfbd78ba3e05c05ddb816ebe4. 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/DEA340703210.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Erster Akt: Zwischenspiel (Orchester)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ee4d2a018bfd3e09c1ab5eeabe06b59c6dc1f783ccea8ad1012d402499a11. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEA340703211.
Der Vogelhändler · Operette in 3 Akten (1988 Digital Remaster), Zweiter Akt: Haben Sie gehört? - Man munkelt (Weps - Chor)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ccbbd5b1fdeadc9e07fe2ce0a09b6dacc1ce8a096d0b7f5a149e334d555a71. 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/DEA340703213.