Rueibin Chen (; Taiwanese Hokkien: Tân Sūipin) is a Taiwanese-Austrian concert pianist,Rueibin Chen — a reluctant artist - The China Post Apr 6, 2012 – In March, Austrian-Taiwanese pianist Rueibin Che
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 0xd6c1805af050006b2ff107495e24d29cf8d34b39c1dea3c8b9078fd6e8aac526. 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/a1be02a0-ef85-4a58-ae75-9307b4de4b6d.json and https://artists.proofprofile.net/proofs/artist/a1be02a0-ef85-4a58-ae75-9307b4de4b6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Violin Partita No. 3 in E Major, BWV 1006 (arr. for piano): I. Preludio
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 0x90c2b21899c40a266ce14359c3c4761fca4e934a3a3e50018c655bfcdd6b8605. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HKI199990403.
Violin Partita No. 3 in E Major, BWV 1006 (arr. for piano): II. Gavotte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1048b22eff20c13d1a502838894667ea35fc578f5b2bf494bd9842e2beb59cc8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKI199990404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d43b762253ef1bb93024c33e3d36899815915ab71fafe2aea9c7044b094742. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:27:31Z), 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/HKI199990407.
Tale of Tsar Saltan, Op. 57 (arr. S. Rachmaninov for piano): The Tale of Tsar Saltan: Flight of the Bumble-bee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4965a2ccf13ab60f57036f3b6c9f746e3af4f9a096725a1c5911d510e9b27b2a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HKI199990414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c9c6bffef8452334a246cdc8acd82cb2897ab70b122138f4c0d957db16ca4d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/HKI199990415.