Christian Li (born 30 October 2007) is an Australian violinist. In 2018, at the age of ten, he became the youngest to win the Junior Category of the Yehudi Menuhin International Competition for Young
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 0xff398c2d9598232af8aaa42c457540ca4e1bfe33a459ddd1a414048715d09308. 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/ec6469db-3e28-44d7-b88d-acc46857440f.json and https://artists.proofprofile.net/proofs/artist/ec6469db-3e28-44d7-b88d-acc46857440f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": I. Allegro
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 0x85213e34741bc8e0b5056bc9535d8976286b1dd8e7560935c00e6bb11cf61f57. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBBC2100164.
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2804a91c962bedf977637177f5fcd5c56f34b845cb998d21bdae66bd09e4ee. 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/GBBBC2100167.
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": II. Adagio - Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e688307da05274a04461de2c031e87e7b0fa7664eac34624455f9912de9865. 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/GBBBC2100168.
The Four Seasons, Violin Concerto No. 2 in G Minor, RV 315 "Summer": III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066088639de40ee4abb8005866aea4757eff8b4f0aab885e0f9abf24b0de0f56. 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/GBBBC2100169.
The Four Seasons, Violin Concerto No. 3 in F Major, RV 293 "Autumn": II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8deb4f2dc813c8389307d227f3ec9df43cf30a1143aeba84d4313d30a28902. 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/GBBBC2100171.
The Four Seasons, Violin Concerto No. 3 in F Major, RV 293 "Autumn": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d62a63da0a919510796e66ec4c8022ad15d8216ca5706230387c493ff7bcdf. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBBBC2100172.
The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb954cba3431939b416272867ef5dab7c990188c05049412626b14c2486b6c67c. 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/GBBBC2100173.
The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11900d3765d5af956cc4f9edba8e82935f3f28692509342e1bebd64abcd6ad19. 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/GBBBC2100174.
The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f6a942910bad09ed83e03e5eec8a188b2284b306765050b61a2850f4879c20. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-21T21:30:25Z), 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/GBBBC2100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514f43ac4ea5466c44bba0635e39d016c68da03f2c1f2f3b46c6305ecccd43f9. 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/GBBBC2100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4691cf1fda9f711c97f87172ebbefa2fcd0832d696ee56be6cddea439247227c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBBBC2000337.
Thaïs: Méditation (Arr. R. Nichols for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39625bc5e392fba6d8a8dfb7bd30b2ef623764f4a07c30675afe2b9c4d9c115c. 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/GBBBC2000338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252ee1d4e87d950095c76243418f259533ad88a064acf96d5158712dfc0be702. 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/GBBBC2000056.
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": II. Largo e pianissimo sempre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbc132e0c5dfa044ebdfdc4aaa955775a5da453b52f250922d0b1867f35c47b. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBBBC2100165.
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
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646adcef182d8ba8bba07f7aaea50a581b1b2cf95b304d3d8b08217854f56f1d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2100166.
The Four Seasons, Violin Concerto No. 3 in F Major, RV 293 "Autumn": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bf6d7a06529e151bb7448d6800417cedb30de9898ba08bd3202775494b1dd7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBBBC2100170.
Rondo capriccioso, Op. 14: I. Andante (Arr. Yampolsky for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e20572b0eb7f7e88b9a9dd47be85b2a39e0568c3b4888969e66a623350f345. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBBC2201496.
Violin Concerto in E Minor, Op. 64: III. Allegro non troppo - Allegro molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a83ffedf7ce3db0698035e87276d3de4e5f4df03354f4e09e5e2959d828a24c. 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/GBBBC2201507.
St. Matthew Passion, BWV 244: Erbarme dich (Arr. Parkin for Violin, Cello and Chamber Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513d7080c0ec9e93f237393276a59d095f7bed7390b056cbf147613758a1a193. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBBC2201509.
Violin Sonata No. 21 in E Minor, K. 304: IIa. Tempo di minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e3217b067ff88e147107ea6ad50fadf78dd5ce0194ce1960af42e2df902cc6. 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/GBBBC2201501.
Venetian Gondola Song, Op. 62 No. 5 (Arr. Parkin for Violin and Guitar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cec4408d83054b48040161f2984c96e33ff7d49c4505ea7105017a71120a7f4. 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/GBBBC2201504.
On Wings of Song, Op. 34 No. 2 (Arr. Parkin for Violin and Chamber Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668e6ca6ce3e9c1d67536259d001ac7f63ef30b02d28a87bede40028876593c7. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBBBC2201508.
Rondo capriccioso, Op. 14: II. Presto leggiero (Arr. Yampolsky for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67adcdbbbcdf2c2c48cbd97ca10bd017eee4223f7b99b4c61053cc06721e2534. 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/GBBBC2201497.
Serenade, D. 957 No. 4 (Arr. Elman for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca306ef7ceeee3e6cf8a16b7157013dc25af70f301f1e91c9899b257e43dc109. 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/GBBBC2201498.
Spring Song, Op. 62 No. 6 (Arr. Kross for Violin and Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55531daad68d7e9774fe421438c9e85d15ef2168c3eef6d5a10db315273916ee. 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/GBBBC2201503.
Violin Concerto in E Minor, Op. 64: I. Allegro molto appassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0b465ad3c32fb8347bb9b690c74f3cc3c5628373ba9b9a77a1b2419173fbbb. 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/GBBBC2201505.
Violin Concerto in E Minor, Op. 64: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301feea2884223ae8c0b0de9544379b9755fc12d642e75fd2fcb67d1ca6ac3b6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBBBC2201506.
Violin Sonata No. 21 in E Minor, K. 304: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8280e6d778378d8b0ca58ec0a01bed87ae06a96003a1ea0b13c5524ea1b9a8a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2201499.
Violin Sonata No. 21 in E Minor, K. 304: IIb. Dolce
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4720a0338e45bca4a66970464487532388375f4a8115889b4ec8e8b2ce01ca7d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBBBC2201502.