Veronika Fischer, also called Vroni (born 28 July 1951 in Wölfis), is a German singer. Life Fischer was born in the Thuringian municipality of Wölfis (near Gotha). She began to study at the Hochschul
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 0x44befdd7417669dda0a1a9c79386cbd283ea4f8bd799871a8767e34528ed9c67. 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/d875e16b-c66a-4055-a3c3-0c274951ea3a.json and https://artists.proofprofile.net/proofs/artist/d875e16b-c66a-4055-a3c3-0c274951ea3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x257f4593e7c322eb626cdb60a8b34ce3815684eddb9f9e7de4794cefdb6c5b25. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEC730300505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0f25de29bdd467b5b1b74888005b73d0419cf1fe4a21678e495af0c3c162b3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEC719400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b45cd9665ff03794f6016eb59b770ec88d97b7418dc82e143811b93e5b0b46. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEC719400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41c9a677427c384f913f5c7f45e877531d92c1294ff2f0de52b9d455942ea18. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DEC719400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c988b815abb4dadf9c4edc842773f9d4b1c6a5b12c931bc553c568801398bc. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEC719400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ff05c8df3be529821aa9764fe72665f839945af191b010e3ea54cdb770e524. 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/DEC719400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a216327fd5ad7d8b17162fddf0f82a9c62f06e8b32ea617a006665efdec9c8. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/DEUM71102883.
Musik unserer Generation - Die grössten Hits
Auf der Wiese (Berühmt-Berüchtigt Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e491740365900160a13bdb1946fc6ac874aa4d3ecf5bcb6ccb462e569faa24. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEHU52000067.
Auf der Wiese (Berühmt Berüchtigt Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fc84cd928c0acf4ec710e4600517673790c2dd87cab1dbfa54ea0b91ef977c. 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/DEE250700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35557c226c8e9f13f8b7051e0e6aee692d5ab6e6db563fad5e9e77bb27c4b28. 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/DEE250700046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402f47cd065add019a8071b00f885a039b503e364be4704c72b71ac8d3d460ec. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEC719400301.