David Christian Bongartz (born 4 September 1980), known by his stage name David Garrett, is a German classical and crossover violinist and recording artist. Early life When Garrett was four years o
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 0xe9038ee2afd0d92500e9ac9df95b7ed8e42b38c31a9b953c132e0ec2c0532f74. 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/d0a02b5a-9a54-4c4e-8455-e957b6f6acf6.json and https://artists.proofprofile.net/proofs/artist/d0a02b5a-9a54-4c4e-8455-e957b6f6acf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x3aa1fd6d50345135495d38710ca1e122c63859dd820ae4495d528d02d66ac434. 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/GBUM71402527.
3 Duets for 2 Violins & Piano, Op. 97d: I. Prelude (Version for 2 Violins and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdb29d8246a742174ad2cff42068376ddad81246de575c1eef07dce57934852. 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/DEN962231808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bb13da4277ca1729457d1a92c188b8c46bd06cbded573d12930e9fdbe58603. 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/GBBBA0841900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468bb3080a0a4517932422a95ee16cce160965de01824a4b756dea5481a44a8e. 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/ITZ041300049.
Bruch: Violin Concerto No. 1 in G Minor, Op. 26 - I. Vorspiel. Allegro moderato
"Timeless" Brahms & Bruch Violin Concertos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67f4eba3a22b10100df97c4ebe8799f3b710b4dbb6519f2d619b1606f2dc606. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM71401024.
Bruch: Violin Concerto No. 1 in G Minor, Op. 26 - II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbed53438293e826bbbae1367c2bde9981d112ec7aa1580185809f04845082a2. 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/GBUM71401026.
Bruch: Violin Concerto No. 1 in G Minor, Op. 26 - III. Finale. Allegro energico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984d9e94a43dc8f0e1c1110a6660da20d020d0c97d38a73ae93513efb8ff0534. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71401027.
Brahms: Violin Concerto in D Major, Op. 77 - III. Allegro giocoso, ma non troppo vivace - Poco più presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527d5ae325ccf6c5afd3642961f25b796d3ecadd05f5303a3448cd426e48f642. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM71401023.
How Can I Go On - New Orchestrated Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74dc3b9c6673542dd0e325cd9e29dc3e31c11d576888f1acaf1af69c4ef66b57. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71204531.
Brahms: Violin Concerto in D Major, Op. 77 - I. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498b06ef554c0a47b1dba3ea5e5a4303f8e0c73a0c2f9b28c7322dc5dfbdac42. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBUM71401019.
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
Partita for Violin Solo No. 2 in D Minor, BWV 1004: IV. Giga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f8a606f1146c8277a4505f76c1098e1af246b12f4efd33912980c00b2cefc4. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DEF059304214.
Adagio for Violin and Orchestra in E, K. 261: Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff007ca40568fce2ba6eb4a59580f0661d3e9821864f3812a5e726d04c1e7f02. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEF059304220.
Brahms: Violin Concerto in D Major, Op. 77 - II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2180cf146e71b2a5f6cd3a15fa03326a1ab794c4234c7b337ccf294f3e8ed47a. 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/GBUM71401021.