Edwin Siu Ching Nam (; born 23 March 1977) is a Hong Kong actor and singer. Siu started his career as an idol singer and was formerly managed by Music Nation Group. In 2002, Siu left the Hong Kong ent
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 0xe1488f647947ebce6bd3ba81746cb91e2bf8516401f4d967e94fb6e65a268082. 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/3629a26a-511a-4086-90fb-31baf00d5388.json and https://artists.proofprofile.net/proofs/artist/3629a26a-511a-4086-90fb-31baf00d5388.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 0x5dbb58c5471db42a26c3e2153cf267e99bdedd8f078d23fd9a530d0b27a66205. 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/HKJ342250035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7940965384aacc02d5322d18d1a09044ed011651da54ab89c2e7d7b4ff7f30ba. 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/HKJ341600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc60aec5d854c872538fd2742ae9fd5bc005f2f2ba8744faae79fc61f4c17cb. 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/HKJ341600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878b38d99308c0aaddff2ab222e8a721de828bd6b20ae0cd9fba0f2d8ff2c515. 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/HKJ341400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e6cbe3bcfff04a7187bfbc4b91dee6e02be46f176bd740e5a0a68eebcb6ecc. 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/HKJ341400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13933580e845eb458262778ae85ac65da3e2ef382b34e8d17a50a74b6ed282cd. 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/HKJ341400138.
I'll Always Be Yours - (劇集 "師奶madam" 主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2727e98766bcb638a1fa7bfae04e93d143d7fb5fb479d886fffe674552412969. 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/HKJ341400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5168ea1e8aee1a4f633013a7ef23804d374bd5cb4ef3582ce2720e4b1b1ecae1. 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/HKB041200580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa791c7549d465ee41c56e2e5195be181eb7bed6d1bcfaa5f06887e0affa59128. 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/HKB041300604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18de7393778143dcc569266a4bbd97b0c7537e18370003b77ac07aff582653a. 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/HKB041300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f936d4e9257073297a7131052690efcff78071898048112ccfb72780cb20a9d. 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/HKB041100545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf85873712474bcab4140c2bcf726644acd797cf3c42d584c1b3afe30560f65f. 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/HKJ341780035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a400f15914430509de682bfc6790d55ad5c4c2a6534a4e8ff18c2d7ae3990. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HKJ341780036.
我不會撒嬌 - 「不懂撒嬌的女人」主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed135e11d3e859410130d22917f503a00e2b88598f48856b50eedf0230ac22b. 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/HKJ341780037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682c34b2e5837bba5522675ab1ff755bfb642d8b86f248e34342bf1fef070a0d. 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/HKJ341780038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32d30f85ccaf9081bcc219d8d07da4e591d01bda8b2b076692ab0c4f09f428f. 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/HKJ341780039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1c30ec5a72bfc4d7f44125b6fb900f02761c643cdf725595ed77776852e83c. 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/HKJ341780019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615c14e2210d30194e3b2d9b4b0a561ac6870f26435aab372672286955d1f6d3. 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/HKJ341780020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70b9c768fac986a8af854b1af5581851ba098ac906e4103873e7c934ce389ec. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HKJ341780021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589ed8f00cc140443f130ecb6f694041637b606e197274446d79861da221a3f9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/HKJ341780022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b73a9c296e1f07f8de110061c40371311ac3ef186bf6a7c9ba5ee5782ed2db. 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/HKJ341780024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b99ec0e0f4e26cce1db0bb33be5a3dcd73a0875530953d9831c93ff452bf31. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HKJ341780025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26f3090f5e42421c96b8fd194b6f210ee26f5d8072e61ea62ec3d1c398d148. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/HKJ341780026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53a1dce07bffd290d71208e8ad8c6feda29ac7c4b6f1a0fb81bd32d7cd2fabc. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/HKJ341780027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129bb2e3c24e67bab37dcca127bc5a6d08777dcb701f129ad0073ae838ebc3bf. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/HKJ341780028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852e26b95282413442cf7e51bbf2cd4131da4dab9090f4deadcdc82b039f1841. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/HKJ341780029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7d97c650750ce6cecbf050070b6c7625ed190a4ac5677fc2111d27c52a7b29. 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/HKJ341780030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0babd17ee7c123fb67c08095096299b9d92a594ff3f55a5a5f81e284ea64cba. 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/HKJ341780031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9ba59887adf8db230b646728f85fcbe29c7b7c56b4c652aac979ac9cbbf1f1. Chain 2 (Bitcoin): anchored in block 957210 (2026-07-08T18:28:05Z), 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/HKJ341780032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf6e00ab333c0a29b87a4f92a0a11ec8059d5a2b3bb2ce5cb78d5d3c20e9ac2. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKJ341780033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6f8d5fef0e96e38607d0c747dfe1e8d6314ff7cb3115a381de479bcbb97ce5. 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/HKJ341780034.