Thomas Brandis (Hamburg, 23 June 1935 – 30 March 2017) was a German violinist, chamber music performer, pedagogue and former concertmaster of the Berlin Philharmonic. Biography Born in Hamburg (Germa
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8860e131669265084ace47d77fc20f0e968c2f75abaf44603993ce083eead58. 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/bc4e55fb-2ca8-46d4-bbb4-589a3c9f04d6.json and https://artists.proofprofile.net/proofs/artist/bc4e55fb-2ca8-46d4-bbb4-589a3c9f04d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
R. Strauss: Also sprach Zarathustra; Don Juan; Till Eulenspiegel
Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): III. Adagio
Vivaldi: The Four Seasons; L'estro armonico / Bach: Brandenburg Concertos Nos.3 & 5; Suite No.3
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3022b8c7cf8bd6c14c6acf7877759f5be071d41cbb19164c97526e7b6e6d8089. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEF057209043.
Concerto for 4 Violins and Cello in B Minor, Op. 3/10, RV 580 (L'estro armonico No. 10): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96440406e60d842ded6a7b36fd2ce3d77ee899d48264d407e4fd1f157acaece5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209061.
Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3a6c06d8edb44fdd9ef696aba14ba281b0e490c4650677ce0d316735f2e31a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:58:27Z), 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/DEF057209031.
Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d9cd3b3f9d6fb05a47de017242436323e7af0c3883532165009228e0a2c85a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEF057209044.
Concerto for 4 Violins in F Major, Op. 3/7, RV 567 (L'estro armonico No. 7): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220b5eeeacc65c7d013238ad77f02b56774590d38d6ae04a2f5fb333fe54dced. 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/DEF057209052.
Concerto for 4 Violins in F Major, Op. 3/7, RV 567 (L'estro armonico No. 7): III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d6a832bf25b544b9c3be617dba01e1ec28b8ab08687dd4a4a53d20545dc543. 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/DEF057209053.
Concerto for 4 Violins and Cello in B Minor, Op. 3/10, RV 580 (L'estro armonico No. 10): IIa. Largo –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51c5762dce229cab8758962151dc0c9935b78bd366fa3a6a7ea8863ac67d2a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209062.
Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affetuoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca636081ba169c000d12dec79532cc216ae3f826658d2e7d5ac3eda12390a9ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEF057803362.
Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa331b6784899d1bffbba98a72be479f6bcc30d6204cfbdae0d145b28623912b. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/DEF057209033.
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
Concerto for 4 Violins and Cello in D Major, Op. 3/1, RV 549 (L'estro armonico No. 1): II. Largo e spiccato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0d872fc1a7fbb7db16e7541e242cf67d5d86f465e8f735e406027897e885d3. 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/DEF057209032.
Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba040fcc36b25f5579df35ab5922fbc9afca96c3b36ce44ff5d3de71959cc96. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209041.
Concerto for 4 Violins in E Minor, Op. 3/4, RV 550 (L'estro armonico No. 4): II. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff04ddf9ba5c15feacfcab877a34c6097c16ef8385488e5b10cef8ccd459834. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/DEF057209042.
Concerto for 4 Violins in F Major, Op. 3/7, RV 567 (L'estro armonico No. 7): I. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9560836b2c03cae4e00c9f123851d35e7d52ae1b4f8bb7425945fdf72b335ef. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209051.
Concerto for 4 Violins and Cello in B Minor, Op. 3/10, RV 580 (L'estro armonico No. 10): IIb. Larghetto – Adagio – Largo – III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1304885f14a87cf4faa815ce9cadaf2b1c794f5c1c831fcf1e97c61c57c011. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/DEF057209063.
Concerto for 4 Violins in F Major, Op. 3/7, RV 567 (L'estro armonico No. 7): IV. Adagio – Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef608faca457f6491312e38b17e4d27d955517047d684ece6bd998b7ed5da3a0. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057209054.
Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470457759b1cd3b585b148d9830d404a9bb12913f32e52bc23d6c19922e48048. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEF057803361.
Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d76b17655d6b1a23db278a5b16213586f39f05348c3c81e8901fb8dde984335. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEF057803363.