Trondheim Soloists () are a musical chamber ensemble of string players based in Trondheim, Norway. The ensemble was founded in 1988. Recordings Cellist Øyvind Gimse was appointed as artistic director
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 0x8004a2cc603e718e0b2fb4276f242ae362ec1778d46fa0d49bba2b735e8fad13. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f71bcea5-ac53-4db6-9721-e81e032a4e3f.json and https://artists.proofprofile.net/proofs/artist/f71bcea5-ac53-4db6-9721-e81e032a4e3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto for Violin and Strings in E Major, Op. 8, No. 1, RV 269 "La Primavera": I. Allegro - Live
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 0x5e6f09471e5484fb9b8e4af0d3aec591471e4fd7d9357c40cbd0fab9b3f0081d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEF059903071.
Concerto for Violin and Strings in E Major, Op. 8, No. 1, RV 269 "La Primavera": II. Largo - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec2ba157eea649fa5f11d35a47300e717551e5fbb2baa381ae05804a0f5a5f8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEF059903072.
Concerto for Violin and Strings in E Major, Op. 8, No. 1, RV 269 "La Primavera": III. Allegro (Danza pastorale) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5926d71e18d02d47125e2b996e7fe374fe4dd4990e829372f87af64d16e5da0f. 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/DEF059903073.
Concerto for Violin and Strings in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582eca17699e0ba88d38e9667a9a800064e4d32b7521e0a23255d54d4b1885be. 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/DEF059903081.
Concerto for Violin and Strings in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto (Tempo impetuoso d'estate) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bbc4eb19cbcee1479eadea20e41de68f3104a62aa6a710875be023a7ff11f2. 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/DEF059903083.
Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": I. Larghetto affettuoso - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c01b6773b8ec371373b6dce7522bbaee7b509031ccd2108864cf2fc2dcdea3. 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/DEF059903111.
Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": IV. Allegro assai - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd14abb1ee3ac3901abc635a5de18434fea31259e206a6f403bf50b39c4bf9f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEF059903114.
Violin Concerto No. 1 in A Minor, BWV 1041: I. (Allegro moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bccbc6d19c2500a3bcb0850e894c12c94fd04621cfaf51fe4d639bd21d2f932. 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/DEN960701401.
Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804b7058f077a58e3bb9b6468441b99d32e3c6e6ec36a2e2b18a759ced70b458. 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/DEN960701411.
Concerto for Violin and Strings in G Minor, Op. 8, No. 2, RV 315 "L'estate": II. Adagio - Presto - Adagio - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4865f893e611f7b2e5a7968365c8fda6cf262ed4c38ebdca31117f4679c95f6b. 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/DEF059903082.
Concerto for Violin and Strings in F Major, Op. 8, No. 3, RV 293 "L'autunno": II. Adagio molto (Ubriachi dormienti) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a993c29b54f5a764adb38ef653162d26dcf07f912eff1f272b3641184ac2d5. 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/DEF059903092.
Concerto for Violin and Strings in F Major, Op. 8, No. 3, RV 293 "L'autunno": III. Allegro (La caccia) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f87206d7dab587a76754b4fd15b6accc2ab181503c1cf0ab8adf5260e2fc85. 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/DEF059903093.
Concerto for Violin and Strings in F Minor, Op. 8, No. 4, RV 297 "L'inverno": I. Allegro non molto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb5df4a45cffa0da8c5151bc34edde5af1506e90c05c0e0b0b8ad827c3185e0. 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/DEF059903101.
Concerto for Violin and Strings in F Minor, Op. 8, No. 4, RV 297 "L'inverno": II. Largo - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdd68fad69f04743b5bf942b62ed8a8bb81d7105502e318c5c46a2952ab7184. 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/DEF059903102.
Concerto for Violin and Strings in F Minor, Op. 8, No. 4, RV 297 "L'inverno": III. Allegro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2504d5382e82b1eac40420a4bc0e4791debdd476b840734cf28c165657564dff. 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/DEF059903103.
Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": II. Allegro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d074cfc9c48c3b3d950813cc2035b9a12f9103e03ac19b9f56bdbcf7cadd3e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEF059903112.
Sonata for Violin and Continuo in G Minor, B. g5 - "Il trillo del diavolo": III. Andante - Allegro - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b00bb4f77ac915dea1aa7cc411470cc0598920427c2dac9be441f6e026dca1d. 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/DEF059903113.
Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd90d1d9acdcdee8bde6e0f6dd8e4656864feaa3a0ecaf3507864ba5cf007f12. 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/DEN960701402.
Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f87e5bc6fa274fd20163489ed37068712a302155118276b6e01c42a5f3d7a7. 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/DEN960701403.