Yunchan Lim (; born March 20, 2004) is a South Korean pianist. In 2022, he gained widespread recognition when he became the youngest person ever to win the Van Cliburn International Piano Competition
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 0xc51f7174fc7f4e38176d37e51e51b0d9e8c22a3c2fc8ad24728becb94211e89a. 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/16285b01-f0e8-464b-9d65-0c2f9ac7d7a5.json and https://artists.proofprofile.net/proofs/artist/16285b01-f0e8-464b-9d65-0c2f9ac7d7a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 “Moonlight”: I. Adagio sostenuto
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 0x9109f4e21491017501aca6d00a68931c12edd5af73dbdb2b2b527055f7086385. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRMIM2033431.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 “Moonlight”: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f68d50132626621598ff198ecb7450e7918d9e2f55529afcf1285d728a941e6. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRMIM2033432.
Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 “Moonlight”: III. Presto agitato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaac210fa0d5d8ed4c3617daa4765ba9d116fd99dc9477db1fd49802856ec695. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/KRMIM2033433.
Années de Pèlerinage: Deuxième Année Italie, S. 161: I. Sposalizio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e5bddb73351f1c2f8dd40d99b30df3ade604fabc354ce82d83a2eed76e96db. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRMIM2033434.
Années de Pèlerinage: Deuxième Année Italie, S. 161: II. Penseroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d1ec893c059dc30ae563cff3f2e144c8cd427e20e6be927b41f1308985ad41. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRMIM2033435.
Années de Pèlerinage: Deuxième Année Italie, S. 161: III. Canzonetta del Salvator Rosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a23074db304cc9d6988765cb3d71876fabcc6c0ed2c17cdb39fa85c29e09f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/KRMIM2033436.
Années de Pèlerinage: Deuxième Année Italie, S. 161: IV. Sonetto 47 del Petrarca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7348ad4f3eb9a95db5a26baf0b69680f9b59b01cd0ec3740d821220591feee7b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRMIM2033437.
Années de Pèlerinage: Deuxième Année Italie, S. 161: V. Sonetto 104 del Petrarca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ff774d5dfc5508cad4a4c72d3a822468ad708d1c9ab0722b340e0a6d83a84a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM2033438.
Années de Pèlerinage: Deuxième Année Italie, S. 161: VI. Sonetto 123 del Petrarca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ffb8ea7ee9a1ac8bc5657b47175317a2b5100205e89c3ba755fdb9642f408d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:53:32Z), 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/KRMIM2033439.
Années de Pèlerinage: Deuxième Année Italie, S. 161: VII. Après une lecture du Dante. Fantasia quasi sonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302727ea0ee3c9ffd51d4e079892530c4d4eb81f29883ebdcdbba65711450172. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/KRMIM2033440.
Scènes d’enfants: No. 5, Jeunes filles au Jardin - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adb323396d56ebc387269177206b0014ee2f629b83e422393da435bbdf0ba6f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:59:33Z), 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/KRUM72200553.
2 Poèmes, Op. 69: No. 1, Allegretto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedebef59f49b397a3d6c96aec99bba7708468fa926caa9c9043fc5975968ef2e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:11:48Z), 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/KRUM72200552.
3 Morceaux, Op. 45: No. 1, Feuillet d'album - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867c47b752db9c3dbc7ce5debdad4480f05c83c46b07634936115a247c2a24e6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRUM72200551.
12 Etudes, Op. 10: No. 4 in C-Sharp Minor "Torrent"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9254e84cda214a193cd72e25fc82f4d71579c60b09e3d9396d3adc9882534edc. 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/GBBBC2400005.
12 Etudes, Op. 10: No. 1 in C Major "Waterfall"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78f866a13c0bbc3f202162f1bc2efbb311c0888ee07561ccb6cab115d2aa7b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2400002.
12 Etudes, Op. 10: No. 2 in A Minor "Chromatique"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadea53baad920293a684a82ca884de29ca325a580f3cd33420c97bc3182d54c3. 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/GBBBC2400003.
12 Etudes, Op. 10: No. 3 in E Major "Tristesse"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a9dbf7b9d52ef2c98823f8821372f61b652445872a68b0c3d4ac7fbb7c7f20. 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/GBBBC2400004.
12 Etudes, Op. 10: No. 6 in E-Flat Minor "Lament"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf61d2c02633d68af12615773c942c719cfec7697b5dc03c6a7b7cd7d891041b. 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/GBBBC2400007.
12 Etudes, Op. 10: No. 12 in C Minor "Revolutionary"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665857820a10169a8074a105a497b74e9668bab8e217530655b777cb1b262835. 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/GBBBC2400013.
12 Etudes, Op. 10: No. 7 in C Major "Toccata"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427187930614dce1d82f42e8bf9a391ab34be8dbcd160d4fa11cd1c4c0475ee5. 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/GBBBC2400008.
12 Etudes, Op. 10: No. 8 in F Major "Sunshine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f62b1e45d0b4d5aa693934e4e0e64da60b7a77cef2900a60ee4f92c34bf68a9. 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/GBBBC2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41c21d31775435d7afb62c8d70209ebeb2fbd76a63dbd399ae0ff929aec13f6. 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/GBBBC2400010.
12 Etudes, Op. 10: No. 10 in A-Flat Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13c9bda6cca40749927817198fc5e1c9136a5735411cb45b539c0c4f4a9ad20. 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/GBBBC2400011.
12 Etudes, Op. 10: No. 11 in E-Flat Major "Arpeggio"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a520348a56bbb02faa42e16078ddcc85fff44ae50ebb7d57fab0fb791dfd0d4. 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/GBBBC2400012.
Transcendental Etudes, S. 139: No. 1, Preludio - Live
Live from The Cliburn - Liszt: Transcendental Etudes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d340e2b1817e82184006b36c8b5615c88bd4bb49da4725577420933900da182. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUW62300080.
Transcendental Etudes, S. 139: No. 2, Molto vivace - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760d6bc543d506cd76f88782219e9801116738335a7a37a38cbc9ff8dbc0f99a. 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/USUW62300081.
Transcendental Etudes, S. 139: No. 3, Paysage - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957f788b49e44bff50e5cd627d8b7f9f2241246e695f96d64844f30753245cc0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUW62300082.
Transcendental Etudes, S. 139: No. 4, Mazeppa - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb2bae54face99c2b7194798f51fd1492a157412924ad3525ef4a6b0db5354d. 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/USUW62300083.
Transcendental Etudes, S. 139: No. 5, Feux Follets - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d12ff7049a52f64bd8aae5ce7203d0f30668d3200d382010b3cc3e74ef1926. 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/USUW62300084.
Transcendental Etudes, S. 139: No. 6, Vision - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5accdbc1e9d7a0c514ed3094463144d57c3c3615d5000f83ad48df065a67841. 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/USUW62300085.
Transcendental Etudes, S. 139: No. 7, Eroica - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c2cb5b21819ea0c332270e537db0a3946b0597cda6144e25def6cf54dce313. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUW62300086.
Transcendental Etudes, S. 139: No. 8, Wilde Jagd - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a354d32d4795b63cc7ba5237a4b5f3714a725592308bb2df0e4cfe69365c377. 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/USUW62300087.