Steven Ma Chun-wai (, born 26 October 1971) is a Hong Kong actor and singer. In 1993, Ma won a record deal after winning first place at an annual singing contest in Hong Kong, later releasing his debu
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 0x0d9d509bad96cea12f61c8890c06c2719d951a07e212e8e0f4494636fa38e059. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6f7f229-c14f-456a-a222-564d056c9714.json and https://artists.proofprofile.net/proofs/artist/f6f7f229-c14f-456a-a222-564d056c9714.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 0xe8867328cc96a6da89a224c2c1036d8783a4e8e2dcc3587694685ca2901859af. 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/HKJ341680005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47b7c66db8f260ba849e7f1a82d38d18372fe39dfceaca236546ac41937642c. 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/HKJ341680006.
鋼琴哭 - ("愛情來的時候:韓國篇" 主題曲 )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbe942f9e1489d9b3b52baaab037fb813bd578bf297c8420c860951c6c4c618. 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/HKJ341680007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487a2bf97b9e8b1a12891fdc0b1bf2dc44e41f3f8afb837ab949aa6db5fba075. 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/HKJ341680008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84290f324e6827b7832c93faa47645f372fa131a0eb7ca84310fcc27863087c. 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/HKJ341680009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ae03b8a5ae6a1a2efac12cd6a21ea60e2219aa7aa1c5b771617906b93ff5d3. 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/HKJ341680010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aec71b57c711aa95972a6fe70af018ddcb866e856209a100eaa8984f6eed675. 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/HKJ341680011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02487fe3dcf8f6fa9a1a04a57dde48470b2076455651e33bce93ef1a4ce7c454. 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/HKJ341680012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8aaa3a6dcd2e76a6b84f66b537101f5226490f318e4c5f89a49bc1fec1d3f4. 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/HKJ341680013.
最幸福的事 - (電視劇 "護花危情" 主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54827957e6c669a125715b219bd86110f554979efa43aaabac7f157f59c37dee. 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/HKJ341680014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e40ae1d82c9c1bc39a2719db063b5f30090b6d391912d07fc3fefb9bda99e3c. 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/HKJ341680015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692b00a67cc4d9cdb7a9006c6aa75b3cebd423abbe2a9f92e8b7be2b13ef22fe. 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/HKJ341680016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc717e10818ae1c29816aad2a83c5ac43c858cc18cee220526d7a7fd05923046. 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/HKJ341680017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42af11a6d28b1b25377d563b95321e660bb5fb9d862b56bce1cf06a0494579e7. 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/HKJ341680018.
交替之間 - (電視劇 "懷抱太陽的月亮" 主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6c3364fd27031efbdc29d5be36015dc97a77e23b0ef41e66b3cdc0671de499. 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/HKJ341680019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409f3cb5d66d075dd3d330d2a8c5afa6b5fe5b8d2a8648e4dc90fd865683dbc6. 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/HKJ341680020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4b5759a02e9980aab8bb838aa97adbf0f107af7a6d03301790df25be044730. 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/HKB040900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5979c838172b367d4ca702683c2ec67329158434445d10e56e2fe3bf79d26e16. 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/HKB040700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91499f424b068fcf8e985073c2be77ba28af9ad5561b4ce22c30402e8d54cb5. 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/HKJ341700067.
我信 (平機會〈同一天空下〉生命短片主題曲)
我信 - 平機會〈同一天空下〉生命短片主題曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6f9704bfbe3d0f29c1441e513032d1be0c44f14a8c90be21d799af78c6dee3. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HKUM72200370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cf7f4ec65822c7c6f7e92f93ca2d9214a4f84abbefc6f2f4918a16766a4727. 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/HKB162100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68be33f9342cf83d1d4807c4bee4d078a04dffe884b9cd5d848ef9d87d0fa4e5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HKB161820001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8003dedb5346a612d589fcd504204debc8633ff2f9d061384a84d979f1c41b2. 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/HKB161800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497cc92bf2cc9689fcf92833ea86d449d2a5925c79086c74a9ccb110c50b64f8. 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/HKB161800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1cc103d4ce43e41a42b9fe7753d625e278724609b7f768c502af5e3c22b5b1. 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/HKB041100508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d94bfa74875505c2b84032188fc4c6d8851e92ce6b5b86d0d1a1c273af8b7d3. 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/HKB040900385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b64924ad5c047deae9df4dc67cb850ef4761bbd08a31ff2dfeb21f469349050. 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/HKB040600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015356679852e4f426136ad9674d9d3a04bc763639b355eac86a8e92d4daba22. 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/HKB040400108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d157b8dd6b9259188ffbfb1600aac9ed8344d62bb4514f45c5b107ca9d9ff7. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/HKB040900368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55423023630cf079458af36ad788d57d7eeb94bc618d11883f4f30eee6adad4e. 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/HKB040800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8e8547343c3213308eeda2a2dad58dac3126008ceb88812bdca8c36134f869. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZVEM2363427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ab6933967aa4de843222ee08e72e51f93cd94dd6636eb1e6f08c1a2a0b45ed. 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/QZVEM2363428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9925a24a1caf64e7d1512824bef4c3f55e778c9efec63ce14b62b608ae53b96. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZVEM2363429.