Ernest Hin-Leung So (Chinese: 蘇顯亮; born June 1, 1978) is a Hong Kong-born pianist who specialises in the works of lesser-known classical composers such as Sergei Bortkiewicz, Leopold Godowsky, Nikolai
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 0x657805628e69f29a4efcdfa6d7dc80ff317bbaf13d9b55dc1f265b7aac79e76e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02bd7626-cd0f-4eb9-8c37-a52ae164ee0c.json and https://artists.proofprofile.net/proofs/artist/02bd7626-cd0f-4eb9-8c37-a52ae164ee0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Selections from ABRSM 2021-22 Syllabus, Vol. 2, Recorded Live Demonstrations
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 0xe02082bac4186a3f8d56e826d29997f73e3b00f77cbce1228ad8b3bd2154f85a. 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/USCGH2179584.
Selections from ABRSM 2021-22 Syllabus, Vol. 1, Recorded from Live Demonstrations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b9be46c9ea584be0fa8457973515c122986042c70d6639066d6aeba8edc425. 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/USL4Q2082316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b115c941373ec16d4ed07e3cc06b6f84738842610657c38b9dbc5069f1d2f34. 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/USL4Q2082317.
Caballos Españoles Based on 'por Una Cabeza' - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d521b83926999f4f2142e6663494f22cd6f04cafd518f4cb6cb602f11219fb. 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/USL4Q2082323.
Pasión Española!, Vol. 1: Federico y Federico
La musique Francaise, Vol. 2: Works by Debussy, Séverac, Wurmser, Laubry, and Transcriptions by Attwood, Maltempo, Weissenberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf311fa83823f3497a0ab79d87f01cf93b90b12f29e93ca0bb0ed8db9e38612c6. 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/USHM22015672.
Latin American Piano Journey, Vol. 2: Mario Ruiz Armengol - 19 Danzas Cubanas (Live)
Latin American Piano Journey, Vol. 1 (Live)
Berkovich 10 Lyric Pieces & Bortkiewicz Little Wanderer Op. 21 (Live)