Jang Woo-young (; born April 30, 1989), better known mononymously as Wooyoung, is a South Korean singer, songwriter, dancer, and actor. In 2008, he debuted as a member of 2PM, a boy band currently man
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 0xa2b96a87cf28b4f747fa7e52eb4912bd522cab008d35bd71928f4d3ceea2f22c. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92ef3f51-9554-49d4-8e81-71fdc5f1a9fc.json and https://artists.proofprofile.net/proofs/artist/92ef3f51-9554-49d4-8e81-71fdc5f1a9fc.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 0x215897838a571cd02854c95ed9b4bfee428655757e78aa0092672fa324480b95. 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/US5TA1200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeba0f9f13991ab4cd9b5cf7126a58bb23d8604d8c72fb9e259e78e8477f0ed. 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/US5TA1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1761ffaa94608ff29ff3d7e3abe0cd4ec509f589ed98329e87156c1025c0bb22. 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/US5TA1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d63d9e9a82722c092eeb46faa683ef04a52ae9dbd126777496014fb65e95860. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US5TA1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb854463c9cfc35df8b60d4f85872bdc6b38d3cc6bbf91328c5577c9d4e44b1f. 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/US5TA1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ec8e868caf065f7d708e6ae1ad234e46554d4727df96a2a9da033512eeb310. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US5TA1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41317316be4abc29336cba2fbc6c1b3be2863812c224eb4644c83ac01629f83. 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/US5TA1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f66ef6c3f1a7a1e34e918fbdbbbc60cae1e32d57de69af695b92a2251b6e40. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US5TA1800011.
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 0x357fa6f2568fc5844d9d0bfc32e4933e2fa3138c0992b73b4e5201bd546b29e4. 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/US5TA1400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021b2c29be685e0c81655535c9f82464529af76aaf3577877ee3d9253aced776. 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/US5TA1400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb9c3f1686a9f122a21cd485fa059699b451c8eb4dd2caed4366d1e0289da5b. 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/US5TA1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e44c90ca63f3a057d7afdc721a8d0aa4cfd7a5f8a3740e3bd60feaafbb0720. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/US5TA1400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732468c2abb0c2b5d2f60d97ffb9582da909813d20fa72ce6bcbef26988e18f8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US5TA1400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3903a445529fe5fd63c2d1f0b8e050df090ca2d90ba28cf9eb9ce9fca10c2907. 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/US5TA1400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe215ba9ab2bba6ba0fb79e169b10c609b0fd753e1de2add0c84b45c2652d1b0b. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US5TA1400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db61226772fb8894233af1fbf0287224d04e3ded26c37cb97d119972db79d53. 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/US5TA1700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4ec7d65e26fe77586b867759f5fcf3f4692ced5971eecec846bdf2677265ed. 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/US5TA1500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c0075a2e4ad53431add5ec07e5285a3a27bd56a5f58e7178a29d01ad599ef5. 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/US5TA1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453f141024ba5733b44cd366404c6f15e2ac78086943842108f00a614cd99170. 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/US5TA1400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2dc05dedee6977b856caad49fdebf9090b4c76063cd75f71c0cf53a20e6d7. 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/US5TA1400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d188abae5a2f3e23348c7f09485366f3a7d1e3339488e83741d0430afd4a8f3. 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/US5TA1400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11464046bb6a7333946b54024009f54622933d4a8296a27eace7a2691994b686. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:20:07Z), 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/US5TA1400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabec8239b014bf44471abd71984af0f977c1113e7711c4c099ebc38bf9443a0. 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/US5TA1300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27d822615d22abf6e0c8949d2c9be2fd98e9958f4ea28ef541f89276f909d59. 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/US5TA1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ea0879ba50bbb5ab537214d74fb30a4eb232d66869235751a50462e42cd687. 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/US5TA1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d444ca7731a2515e708ef0ac7dd96baad8b04f3bb38d16e19ad3abb670047ba. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US5TA1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2339f7a7e2756324158ffd070fa013e4c90594ce89f9947ddb7869d8d490a5. 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/US5TA1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad233434ae8de67b4b90732026fc2623342751e3ec04b0cd107770eec095094. 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/US5TA1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ec77834ca5a7ac4f2df4e1276965394fa59d7718d85f11bf3242d58527dda7. 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/US5TA1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdcdd63dbe31e66cde8eaae5ca36655d8b082aa1dc1a0e8d11cba1ddd949903. 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/US5TA1300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d10f8284d95679c3c1f32c8d5f21a48de4b2f63283dafe262e179cca9e9978. 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/US5TA1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f13a075af993a1ab714786ca80d2c8a44e8c01171aa5fc2578eea5bfccb4062. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US5TA1300016.