William Chan Wai-ting (born 21 November 1985) is a Hong Kong singer, dancer, and actor. In 2003, he participated in New Talent Singing Awards where he won several awards. He was then signed up by the
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 0xb3b7645677a786f3a2faeda075f2fa2f7c1912a1172b96c9c28b4373c4af8eae. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdf60812-23bb-49f5-bac1-32f62e6fe33b.json and https://artists.proofprofile.net/proofs/artist/fdf60812-23bb-49f5-bac1-32f62e6fe33b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a9616a73b57da4af3c9f16362c7d2fc87c722177ea94d804b12d4c94181a9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/HKD250914102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddcd55c5559e80724ddf91731751b817a13cec5956b9341c20d6fb0f91a1215. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:00:32Z), 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/HKD251210703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a9616a73b57da4af3c9f16362c7d2fc87c722177ea94d804b12d4c94181a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKD250914102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3240ffe4fa90e2ec484d255c8c9eefcbdf4e6846b62024ce3629150849ff0536. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/HKD251537403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ee8b4ba302457374982ed4747a521780aeb9a77fbb81d31740325ea4ae8100. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:50Z), 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/HKD251200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c11232ac3622969cada296d9879a9eceea96da2f97ea5a6f5c4458af8cb4938. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/HKD251537901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcedd742ee9beaf4e1975ea1488db9ee31a9515ac5bc3b18fff88b68f996c342c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:50:03Z), 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/HKD251537904.
Love! Love! Aloha! - 電影 : 那件瘋狂的小事叫愛情 主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8422baec09e469e48f1c1ae960776f826171505a4ab38f963d44a8374be7677f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T17:01:32Z), 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/HKD251600002.
清醒夢境 (電視劇《南方有喬木》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f147904d8b6343c65fb1f2b0582fcad27d0f6d0cf6967690d45d5679326f98. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/HKD251800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d2719bcaeac1e73faf8a64a7aec2842e6d95dc1347cfa4cd025802b87a4964. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/HKD251900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb014a63413e43decd54bc2496a8b153d3fbc459e247d4e0b16dde6878087c8b. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:49:54Z), 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/HKD252100100.
英皇娛樂15週年和華麗有約澳門演唱會
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4936e2145b5ef9ae567da8c2f8ba4a98341c0cf3686b8ef4412eb4d7f379eb2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/HKD251512424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a9616a73b57da4af3c9f16362c7d2fc87c722177ea94d804b12d4c94181a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKD250914102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880a9616a73b57da4af3c9f16362c7d2fc87c722177ea94d804b12d4c94181a9. 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/HKD250914102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ea4f9539b0c6bbdf62e433c73e57083e390ead6127609399950d139e8bbd9a. 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/HKD251311806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8453ce02b03594a79428f5f43f6154be8aa961c8cfaddc73ad3cd766baf1f63. 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/HKD251015901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b16ad631e8d8391f886af447083c3bb838dfd070fc51d752521073d51bbcd4. 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/HKD250914601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2cbb70e0415af8d8b095eb7dfa4af656dd5970046ad3cee9fef6fcedeefa3a. 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/HKD250512704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8453ce02b03594a79428f5f43f6154be8aa961c8cfaddc73ad3cd766baf1f63. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/HKD251015901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b16ad631e8d8391f886af447083c3bb838dfd070fc51d752521073d51bbcd4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKD250914601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2cbb70e0415af8d8b095eb7dfa4af656dd5970046ad3cee9fef6fcedeefa3a. 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/HKD250512704.