Oskar Böhme (February 24, 1870 – October 3, 1938) was a German composer and trumpeter. Life Oskar Böhme, a son of Wilhelm Böhme, also a trumpeter, was born in Potschappel, a small town near Dresden
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 0x8e9384fb6c5f1fbc88ce388685341ad4e358cc740efc6967a1bb04f538c1ac9b. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8fb52cb-5399-4714-9649-4cc22202fe2a.json and https://artists.proofprofile.net/proofs/artist/f8fb52cb-5399-4714-9649-4cc22202fe2a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
150 Jahre Oskar Böhme (Dresden - St. Petersburg)
Trumpet Concerto, Op. 18: I. Allegro moderato
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 0x38a56af9fc9b5de05ca6ffdfb4e24615ae0fc1debeba6cc70af8ab33f84b9cfa. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232001 — a six-check JSON result.
Trumpet Concerto, Op. 18: II. Adagio religioso. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a1925f412ac38347814227c300008e8482725f64324ed69b18217f69cbf2cc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232002 — a six-check JSON result.
Trumpet Concerto, Op. 18: III. Rondo. Allegro scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63585f39fa48f0d17a0c9d1d1f9cc02e3a0377318d6ab23be9c690e6bdfb56f7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232003 — a six-check JSON result.
Entsagung, Op. 19 - Arr. for trumpet and harp by Stephan Peiffer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131c4085194c555f05d87d94f62da2fc5ccdd29073f360dc0510b53122c537d6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be790489c0e8a42537dc58210bceea9efc54ad1e816c6597542a773c87788ca. 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/DES382232005 — a six-check JSON result.
Danse Russe, Op. 32 - Arr. for trumpet & chamber ensemble by Stephan Peiffer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8253b1f34c4cdc10693bf81449572ea2265f6edf5fcb4dc70806048cd2fdc8. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232006 — a six-check JSON result.
Liebeslied, Op. 22, No. 2 - Arr. for trumpet & chamber ensemble by Stephan Peiffer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e13d8ce0d152891ff81901995d535d6259f33fe5bed6077e49717e83d05f5eb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232007 — a six-check JSON result.
La Napolitaine, Tarantella, Op. 25 - Arr. for trumpet & chamber ensemble by Matthias Höfs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1525aee5cc22e2ef65b23614ea4640316cb7c3a4a1b5d9cbb33f0214c2ff238. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DES382232008 — a six-check JSON result.
Trompeten-Sextett, Op. 30: I. Adagio ma non tanto. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73719f66065a4a7aea928a33609b09fcf83c811350960a7cc0ee8a43fa2dec2f. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232009 — a six-check JSON result.
Trompeten-Sextett, Op. 30: II. Scherzo. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cd2f4ca10f925244981588141abdbebd7e42e387194e4e934925e7c896541b. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES382232010 — a six-check JSON result.
Trompeten-Sextett, Op. 30: III. Rondo. Allegro scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2891d6e6d5d6915142d533e7d659a03f9ad8c71d2565b9ba9e9bb971883cec. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DES382232011 — a six-check JSON result.
Trompeten-Sextett, Op. 30: IV. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6861e9624cbb8e5312a9ce92b578210893d543f1d7e653a5a58729838512bbc4. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/DES382232012 — a six-check JSON result.
Böhme: Brass Sextet in E-flat Minor, Op. 30: IV. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d59c6114b47d7566780a0d4e8d68cc2e064bd304c5137f3b2ed3baf5c193b31. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DE1LM2500007 — a six-check JSON result.
La Napolitaine, tarantella for trumpet & ensemble, Op. 25 (Arr. for Piano & Trumpet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53dcde4c0d73da7db5bcd334aeef480f78a402c71667d83f77ecec70f4833a8. 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/GBELP1200020 — a six-check JSON result.
Sextet for Brass in E-Flat Minor, Op. 30: I. Adagio ma non tropo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98943d6d18da1e6ccc0d2c1980c8f8c7f61d7b85c378c5d2001b5cd16b68759e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0400609 — a six-check JSON result.
Sextet for Brass in E-Flat Minor, Op. 30: II. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63915613f88d31dfbd1c7f0dfa40fe40502b6fefd40991e9caf874e0c8d56853. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0400610 — a six-check JSON result.
Sextet for Brass in E-Flat Minor, Op. 30: III. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cad9da3e9d7907817457c4b91d8d731b4fb2cb08ce09965ed52006383809da. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0400611 — a six-check JSON result.
Sextet for Brass in E-Flat Minor, Op. 30: IV. Finale. Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f35e4ea530910bb0b9556dec9d92a1833582b753183419261a45e389c7a3c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD0400612 — a six-check JSON result.