Lang Lee (; born January 5, 1986) is a South Korean indie folk singer-songwriter, composer and author. She has released three albums: Yon Yonson (욘욘슨) (2012), Playing God (신의 놀이) (2016) and There is
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 0xc622fe0971c80cb55e6c7b137d5f3ad9a5e3b155308c2c19b7a27c9457dc7837. 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/fb63e3b1-7e2f-447e-8ae2-27d92c1c9dba.json and https://artists.proofprofile.net/proofs/artist/fb63e3b1-7e2f-447e-8ae2-27d92c1c9dba.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 0x6ba4867a034e16bf98353188e07870707ef21ef2cfd3606c8c13a6cdc4ea576c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZ9Y21707662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332aacf82338c2256e0c07fbe42927efc755a40a26ad7ce31aba701b59c87554. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZ9Y21707665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6f089f74bb39d4c47eb71870c93da32c44de1be31802e0114c72948506062c. 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/QZ9Y21707666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2227da54dc28ec8ba9e85c490e82b7b0e7b4617cb8984596246b7d726e2a31. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZ9Y21707671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544caa53ff9c09b8736cf8cc12eb26993573d19598f828f34f95486edba7ba88. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/QZ9Y21722923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0468741c0822cd4508d50bf4e9d9e8896d6f4591bd4d0221933e58cc0ef8515. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZ9Y21722924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2600266def3ff0f1921a5c3d1ba5048e379c65aeaf10e87bd51a5dd0f5c82e98. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZ9Y21722925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8822bfd1aa462630c80a3b2b6cc271325bf4a1a86fa922636e5efb0ecc412cf. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ9Y21722926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cac5bf78d98db6344fcd659152d0704e936c02b462954d9fbd1440fac5a2e5. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZ9Y21722928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43acb1535107f5111c8dc3f5f2da5fb74df0b61b55b05cf1160b0ae1585c22b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZ9Y21722929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dd5084957f8899dc12cdca125d9dff9fdc80e0067d2ef4acc51d59f1b954b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRMIM2124079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cac81f74fd69f58a24685f6e1c2590708bb88dad50b0e5b3e3d86b4bacaf19. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRMIM2127482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8072612495e862f79cc96b8621315219455d4a75068382d836b62eb7c0fd77bb. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/KRMIM2127483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362bfd373a220a4056c2d1ad51ec150f56883fb9f3d5d39318c8d47128aacec5. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/KRMIM2127484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd764c6ae87ee7dc0ee775156d681a99790d9518fa53745fbf800874ccee4c5b9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRMIM2127486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35afe7fb6ad4463e80ff9cb2b8aa3b67bf518edea301951c94a5665c69da882. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/KRMIM2127487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503a085b6d39a5ff423cfc8cb0fa4c6966b43fb404397802626681d288c5ea15. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/KRNAR2233126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7d7d80a9be783301debf937389af9debdaffece0ec59202a04a7ffb4073efa. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/KRMIM2008570.