John Neschling (born May 13 1947, Rio de Janeiro) is a Brazilian orchestral and operatic conductor. He was the musical director and the chief conductor of the Orquestra Sinfônica do Estado de São Paul
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 0xdf0d141954628fc1414db6310d0badf3ec2bf3dede900f1773b776960a2ee232. 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/d3b05b70-835c-4fc3-b284-84efb492899e.json and https://artists.proofprofile.net/proofs/artist/d3b05b70-835c-4fc3-b284-84efb492899e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schoenberg, A.: Kol Nidre / Bernstein, L.: Halil / Bloch, E.: Baal Shem / Zeisl, E.: Requiem Ebraico (Remembrance)
Totentanz, S. 126 "Paraphrase on Dies iræ": I. Andante - Allegro - Allegro moderato
Orquestra Sinfônica do Estado de São Paulo
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 0xe675362b0296cd33fb457dd61881d6cf4a5a3c408cac65930a567a67fe46abea. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/SEAEP0730010.
Baal Shem (version for Violin and orchestra): III. Simchas Torah (Rejoicing)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cfa1423ccb9f94036d7d5e24094e668c877ff30a043090303cdce95e15553e. 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/SEAEQ0850050.
Liszt: Totentanz / Piano Concertos No. 1 and 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b51ae9cd1560287e81a7c5e8b9958bbc5737c455972031296c727f4023b950. 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/SEAEP0730020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720f0ac1538d8f9829afc9d277477c4e7723fb797bd0180a35da7924c0b58937. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/SEAEP0730030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e52dca22c1841425554a47449db7adf9f6b6295c1edc935194f3e36d705e41. 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/SEAEP0730060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f23972c9ba3f1dfa3f33ed6f1b5893cff63814067e51cbc233eacd246af646. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEAEP0730070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c7e2dc7bef429e7346d8207b34ee270d178babfc4822974155f25d746e5db. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEP0730090.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1568a31dd53b59db99350a5f16059e50e81e2f3bf723e899fbfcd034042a67cf. 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/SEAEP0788010.
Piano Concerto No. 1 in B-Flat Minor, Op. 23, TH 55: II. Andantino
Tchaikovsky; Piano Concerto No. 1 / Medtner: Piano Concerto No. 1 / Liebliches Kind!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d162a9b60f5aaa8849e4814dc3aac3b3582f2ebe1c36fc3cd8f08306a78865a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEAEP0788020.