Lu Han (; born April 20, 1990), also known mononymously as Luhan, is a Chinese singer, actor, and dancer. He was a member of the South Korean-Chinese boy group Exo and its sub-group Exo-M, before leav
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 0xc02b51aca39b1f93e3b6b6dc82277cf22de071dfd5c29090b006731395834475. 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/ebd361f9-3e12-413a-a54e-f6daab1f3a94.json and https://artists.proofprofile.net/proofs/artist/ebd361f9-3e12-413a-a54e-f6daab1f3a94.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 0x6bc97030847f182ce2187433e5b955fa148fa58ef6f2a79d0886459b9315af9c. 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/TWH771525001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d4f4ee165aad373a7e70d1c127241eb04d6068ce4340b0d1f9760152dfb7b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:44Z), 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/TWH771525007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36331ec6ad127b1d83e46b54bf95f4b77de4e895f89bdcafd66c4dfe6edd80e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/TWH771525005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67310bd2b0a9151c751a1383bd88b6316f748251795a983a2a8580de173ba7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TWH771525004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c63b53fe6383aaa2487eb311e91fb0065baf5669024a3c61ec89dbafd2a3c6. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TWH771525011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c4844cf623103b870ea6c4dce92b4ebec44753d7a4b7cecc1fd7aeed37145e. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TWH771525010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c297e4656d22be267556eb5cf5f3687596b7645e8d87ea2420d2e3ba2f2976. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/CNZ171600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9060b1adcd6edddb240e778b75af4b12a8368a9a132d40744460ee1b106f26a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CNZ171600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ab0b113f49e39480e658d081a1775d985ce0ef24f818aa4a3661277df57314. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CNZ501700195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb639f2a3e6025502a9a3c7888076f3e4451eac93aa360709fa2c1fe9ee1739ea. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CNZ641700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f26f1b91d9e24558d759d814c5b9f5ba20f1b5d9132e1c2226ea6fc60b13b3. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:01Z), 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/CNZ641800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646f0dbd8191250f9d3e4933103619e7dbc6a7f36d6df3e63e974da1d327b3c4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:06:44Z), 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/CNZ641800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945ea3ab77516bbe0db42a64fcf6d8bf4e895ce9af42c5553b43a0b79ed1f6c5. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/CNZ641800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b299e3a215b465bc8c23c350e03da2d3a5aa395f33c2a6d7e9fe96ba6d7762. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CNZ641800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3592d818b096528f5db33d55bead79551d993c92de987b2957dea07fad519304. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CNZ641800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1357654a994ce684adad4313ddb71a9f0c680aca0d01cee5006f34147d18dc15. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CNZ641900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278b41276d03a1d4cebda52d64683b5661d2dba2146172a3320a22c3b05d6575. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CNZ642000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef357721cc37a1b6ec7fa131ff1acc937a866438189111291ac99f9e621108f5. 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/CNZ642000032.
怜城辞 (《天官赐福》动画第二季主题曲)
Ping pong of China (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1b42eab6447c2f30d01bdd694a9c6b7c7f6a82d260f1a6e131dee786d5af5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/HKG731580867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a7b198ce2bb8977ee429d4896bfbd1204361e20e74018f445efd58c8ce6534. 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/CNZ642400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4345c8a3fa23980b67c2de046c5ebbaabcf8432f4aa43137a4e4825fd42c0468. 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/HKG732152830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1801cd8b640bac163a18ba19a59b275a8d9db9336befdcfae48719f37afe8fc0. 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/HKA412300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c158019f3162bb49c48497fcc29d031084c1571670e84f1108aca6458b9ac46. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X2451138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dca287eb4d998d97199d379abdcdf25f6afefb4431528140f1da1ef0cf6dc0. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/HKG732126893.
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