Johannes Fink (28 March 1895 – 1 June 1981) was a German general during World War II. He became a recipient of the Knight's Cross of the Iron Cross of Nazi Germany. Awards and decorations Knight's
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 0x4f113c213303aa087f7fa63bab5a9b0442777313624cbcfde002fb3a8a580c47. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2c1c398-9a7c-4292-9c81-141e07ba4665.json and https://artists.proofprofile.net/proofs/artist/e2c1c398-9a7c-4292-9c81-141e07ba4665.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Brandenburg Concerto No. 6 in B flat, BWV 1051: 1. Allegro moderato
Bach: 6 Brandenburg Concertos; 4 Ouvertures; Tripel Concerto BWV 1044
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 0x4e28cca39585b866c1194d632ca2b5442364f050f172fae5c9d97c832b1beba7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702691 — a six-check JSON result.
Brandenburg Concerto No. 6 in B flat, BWV 1051: 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e489913678c74446ba9968d98fd19832cede9dd54c1783082dde99ace73edb1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702693 — a six-check JSON result.
Brandenburg Concerto No. 6 in B flat, BWV 1051: 2. Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a07f56c559fb3408d67f455eb759cf966586a22c1fa6a428c333b2f928e69e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056702692 — a six-check JSON result.
Flute Sonata in C Major, BWV 1033: I. Andante - Presto
Bach: Partita BWV 1013, Flute Sonatas BWV 1033, 1034 & 1035
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae666bdeec9efa5dc47dce0e6381adc0527c24ac3b30a38bb4ec3c2a224deae. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302221 — a six-check JSON result.
Flute Sonata in C Major, BWV 1033: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce465f962d8a5016324d37702adb1d7d9cfe4ac3ac9f4ab30803235436947781. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302222 — a six-check JSON result.
Flute Sonata in C Major, BWV 1033: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ffd723a0015a2d098ebad884964bea80eda39d3e24f0cbf7906f64c5d67ad7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302223 — a six-check JSON result.
Flute Sonata in C Major, BWV 1033: IV. Menuet I - II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279e66a9256ee638b31818402c64d67a9fcc67b2e960ed3cfd0a0546b18a75db. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302224 — a six-check JSON result.
Flute Sonata in E Minor, BWV 1034: I. Adagio ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a83b3084a64e87222c643fc0bcfe72a89956725f8c7b9e6a38e3c5fbac250e0. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302231 — a six-check JSON result.
Flute Sonata in E Minor, BWV 1034: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc6ed47d7dd441ed5764f1317adc325f78cdb851c236a6303bfb2605d7e97a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302232 — a six-check JSON result.
Flute Sonata in E Minor, BWV 1034: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c4201ff3c9f5815af1bed7440e63ff3e41a38fe138cf0158fb70294ceb7fe0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302233 — a six-check JSON result.
Flute Sonata in E Minor, BWV 1034: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6078c66e726fe5b4bcd89aed578452d7a0a6fff9562894a7b5a26929a9fdde92. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302234 — a six-check JSON result.
Sonata for Flute or Violin No.6 in E, BWV 1035: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3992fe9bd48775f760b8e018156f0df927a017f12486993961e45edcf3f05511. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057302242 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6870a81ebc4794bab8bf5601863274bc57d42870449184329d92edd1ba343022. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA151826802 — a six-check JSON result.