Wolfgang Schultz (28 June 1881 – 24 September 1936) was an Austrian philosopher who served as Professor and Chair of Philosophy at the Ludwig Maximilian University of Munich. Biography Wolfgang Schul
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 0xae3c9d33cb86ecf0ff470fbb9a70bb0a05a26de2f8c71b05f42cbd7d3f625c5e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c491f082-8098-4b04-882e-2ddff7ce8524.json and https://artists.proofprofile.net/proofs/artist/c491f082-8098-4b04-882e-2ddff7ce8524.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Konzert D-Dur 1.S.v.A. Vivaldi (Instrumental)
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 0xb8dd26eebaec6a0eeb12334ce89bf225c44824742fea50d9ece2817668f5ca50. 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/CH7811820458.
Divertimento for 2 Flutes and Cello (Bassoon) in C Major, Hob. IV:1 "London Trio No. 1": I. Allegro moderato
Haydn: "London" Trios Nos. 1-4 & Duets for 2 Flutes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5896471743d99fe1cd9fe66369ab98ed445de11db30857a98f3cee015f1c00c. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USSM10208004.
Divertimento for 2 Flutes and Cello (Bassoon) in C Major, Hob. IV:1 "London Trio No. 1": II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6842eed5872989864601a16e8b6b6cd423b1ec2d650c9fec48db20b2b355a35. 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/USSM10208005.
Divertimento for 2 Flutes and Cello (Bassoon) in C Major, Hob. IV:1 "London Trio No. 1": III. Finale. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd753aba9c58423badbdace4f86a8947aeabb593d998695bcf2a937c8f13bd3e7. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USSM10208006.
Divertimento for 2 Flutes and Cello (Bassoon) in G Major, Hob. IV:2 "London Trio No. 2"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4acb0aee542a292991ad9c10ab9e3dfc9b82ee8eb1e9e65b4c31abb23bcd06. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USSM10410070.
Flute Trio No. 3 in G Major, Hob. IV:3: I. Spirituoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bf823f29a84a295f1235e09625f5a624e9fea842001f837873a8cdd8729ab2. 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/USSM10208008.
Flute Trio No. 3 in G Major, Hob. IV:3: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22271aab6ecbf69a62e36cc1328a7759d439d21008801e3ceacc2df6a754125. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USSM10208009.
Flute Trio No. 3 in G Major, Hob. IV:3: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe647aa469b0b57d3e769d7437eb1aa64e372910a67ae280922dd1214ad43127b. 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/USSM10208010.
Divertimento for 2 Flutes and Cello (Basoon) in G Major, Hob. IV:3 "London Trio No. 3"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aab47f44708cc140fc25fc532082c3ff5b5d707ac6f84bc9261cd190193415a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10410072.
Duet No. 4 for 2 Flutes - Arrangement of String Quartet in D Major, Hob III:79: I. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x606a5ce2a511bc89b3217f890806c0327116866aa5e764e082fc82046243f56c. 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/USSM10208012.
Echo for 2 Flutes - Arrangement of the Divertimento for 2 String Trios in E-Flat Major, Hob.II:39: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8b86e1e04060c40944cf374ab836c51df05938cbd0fbc9cad8887b1d7d8a11. 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/USSM10208016.