Huang Shih-cho (; born 14 August 1966), also known by his English name David Huang, is a Taiwanese politician and scholar of public administration who served as the secretary-general of the Control Yu
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 0x2a8feab5ff5ecacbff2bf0e0b6a0a4d69e79b4aed87ffec404afba9c6a04e5b4. 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/f918afa6-65ee-4c73-b902-079c1c675977.json and https://artists.proofprofile.net/proofs/artist/f918afa6-65ee-4c73-b902-079c1c675977.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x16b51defee14d0113ed7658ba248ee61113bea2774ba69621f538c6deaa8e620. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWA471010007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185fcd6323dba1bfd97d01ca917ae7089e7de32f808c11b8cae08c4fff3188ce. 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/TWA170490308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84711e95e98192151d522146531d380d4d0966ba3a93f665716a2f9817f1941. 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/TWA470617001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48931584b2368047fdab87e9b9c3db783823322139d69d6ae1c0248f12944c59. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWE210603111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba567c42bcca96640375a5b3fd1ac3ce178e99f8727f672778152aab77f6f61d. 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/TWA470701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf27a698d3ba167e0dc83bcd1c0d398e1a82b2b9f6ba32f0ab4b7ba7c21b19e9. 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/TWA470701003.
王力宏 2019福利秀臺北大安森林公園LIVE專輯
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714a2c9a00fc6268f8739f5c0e8f670a79f30f9e447356f14c3d6ffee014c6eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TWCE71900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49805d250f7e7c1ad71f28db1af3f7f3a54aed0bffcd224381da4bd5ef7d0ec5. 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/TWCE71900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73d2b3d89c1aa0698c98cf9c8aa07872e9197db4adc0f71e9171319226aab0a. 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/TWCE71900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192e952128e00f4128a8f1cc6d673204509a5de105a790908bf02834bf32679b. 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/TWCE71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b67ec83882728caac6ac559f992e66956e7c59563e0c3c20e7e1189918529a7. 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/TWCE71900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82497cd0f013ab82b01e6470e04197b78bcf734afb02974d8f982b4d183ccdae. 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/TWCE71900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe67812decf0e9d19c4323ed90b6f0e7a365cd759685ebfeca49e46f6fe36d29. 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/TWCE71900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d066c5b36256dc7529a8dbdf99cfed2f49054164819763f58e7894812d3bed5. 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/TWCE71900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2168f71ffcd38fac058d238493ebf4e0a983c079cd7e6e37a0fc98ac6f22991. 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/TWCE71900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fb3b2e04ba2b8d01ab3c7b86edb64663bd159a4e73d84c842a87355b999281. 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/TWCE71900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4faaa3114604c0fc7ae739fa11264f8bf8ee8d2d83cb68ed384c1d62fa553f. 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/TWCE71900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220a731a7aa44d4eee627a0f9e46b2cc370d1dc8595cc9fe00fe375bda2b6b81. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWAN70360040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64c8212fd91d86761e4622bfa5971d8f4c53c350cc891c0776b6bdbd8b7f4ee. 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/TWAN70360041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ed3702d0982f98ba664794b0b75261ac0b17415088a24499c04d4e69851d9a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:45:38Z), 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/TWAN70360045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da68b850b1fd77f3f056a79310822f161331903687abb2890c1e0413f0b97b5. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/TWAN70360053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565c8771302b3089d068ffb94986875d48bfd6a64143a1a1e36778254f785b77. 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/TWAN70360056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1ac4ee107b8e99094d6a50129389afe8498256761c5c3999ab9c0448e51afe. 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/TWAN70360058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfffd5a2ffacbf29261c119d1ce9119a6dd5608abad14493ee73c87dd9b9a0f. 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/TWA470311008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e5127c2281034d2c340ba346178da28aefdde828fe25c0a0214b55fb85926d. 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/TWAN71360077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5408811426f2f8b921c7437fed3b9eafa4a626929e1bcc3c382679449bafd5aa. 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/TWAN71360079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eebeed988745b30e1b87dfa8c18fcbf6813fb65af361ada406c474ae3e6bdf2. 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/TWAN71360080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e9f6c4db32c0c9f289d619f366f3f5afa0836f0462dec6e18b3251c90cf8b8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TWAN71360082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de0e39fbb53b12a3c531997b4296823a856b6c9542018e94d8761dcee0348eb. 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/TWAN71360087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c97ffedd95510f4fa0def80edc92c913e78e0df81e529fcd42650256f4e9139. 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/TWAN71360089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b152ff5978ea59ef3fb9486bf9637b2b0b5bb45d82b63b8b48f08831122adb7. 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/TWAN71360093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c17e77cdf9eebbc32f1b6538fd01cd5cf131264813b11df04ead9a8a864872f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TWAN71360095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d5c182e951d4018cdbb9ac101aa40ca2086dd4e55c4e002ec5bd7a187b5568. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TWA179000901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459ba7540167380c8cf131b8f179da554d15babe74e1153446adab4aa5591ab7. 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/FRX281976557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1ca7957f66af6d7527c9663e2c4128b2d219ea8cd1797a911e05cfbd2e6a94. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX281976568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddd76ac4f659ac09a9fe990df0c3c42d46cc836eeb05c50b780c2187be3a42f. 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/FRX281976565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f24089a998db9fa609e38427eca5ba29ec2558d020bbfac9970dfeb93f7b83d. 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/QMEU32409958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a72818837d2a8e03c0d11ef1d5e95e95379b72dc76bec3390346c7977a5b6c2. 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/QMEU31619316.