Jung Da-woon (born February 24, 1994), better known as Dvwn (), is a South Korean singer-songwriter. He made his solo debut on November 21, 2018 with the extended play, Panorama. He has written and co
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 0x23125b5dd6eaac36a4e7435af38eb36bcbecb7b2393ebf6177f57312d538c97e. 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/f245ee98-181e-4ae8-97a5-b39507b04a30.json and https://artists.proofprofile.net/proofs/artist/f245ee98-181e-4ae8-97a5-b39507b04a30.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 0x94940f3f4ae9d95cb00cb2eb6d1f9b547aeff67daa901981352f94927a72645b. 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/KRA252100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d95b69b6ca3dd841f0fe27573805895c540f901177f70726f8bb68597381c6. 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/KRA252100433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ad7e7a4cf3e6cc4bb0aee412da345780250bcd946ee690ef9eae6f7b69b600. 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/KRA252100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d6db1a8c062718ae51bd2fad84ca12e4432b3e7b38357b8df914e02c7fca9a. 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/KRA252100435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826bca9a2f9a90eb9758089fc4f0bf8ac27a99eb82e5dedc4a459b50ed2c22b8. 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/KRA252100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5ecf89e72c40fe81ca37fce8d800cb5507fcbb808cd38c0f26b5d99809bb95. 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/KRA252100437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09164c13e640a3e6f799b23ca2c1e5454e937f561029698cf4bd89bdb995cea5. 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/KRA252100438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0c76593fcd28cadf0308caed31bff6f0cc16f236fd8b595c0b71097b8233c5. 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/KRA252100439.
Tell Me That You Love Me, Pt. 6 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6af0845ba0fae2810e656d83d68ee3948cc739b584bd7dfdaee49ed6f203e08. 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/KRA492301168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586d3fec25859b1b1062ef2743ec0b9ca6c52315d685d017152e3659a816d8a. 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/USA2P2308001.
The Law Cafe (Original Television Soundtrack), Pt.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afee690e55cb276bdb2d9890c9245cd865249acb1637c975d9612d834515701. 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/KRMIM2276732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35666037dd8f24ffd13825f993c290a72ad32070739ebdec512d104bd2a8c3ee. 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/USA2P2226358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb55b0619e6210b6af86c48254a41ad65aa0217f9ab5d3af6d5b1bb52f7b665. 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/USA2P2226360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7ee5680083e18cdc0031d68a7391ac5e1730c3c05fcf92c0b7daba778e9e18. 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/USA2P2226359.
Rookie Cops (Original Television Soundtrack) Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea26c82d08a7631ad6e1f98df75da61be64869de372da4062885b9c767e9903d. 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/QZF452009633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678461d7bf6168d6c6e08843a1c613b81956acfec5217b4e8b0c87b39ba1dc26. 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/QZF452009634.
YUMI's Cells, Pt. 9 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf4a1d7e58a95f650c2fc7a38875f903a8ceeddb73e3e871348b585edb60f4b. 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/KRA492101130.
The Uncanny Counter (Original Television Soundtrack), Pt. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c995c0ac98dd8315e95aafae0fe39e45437a319d0d54a4801a63fe518be0c9. 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/KRA492100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c313b399bb228cfd2b6649c4c86f62b364c9ecdc1aa8bfae09e8aa00d5af5fe. 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/KRA252100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b166a3b794293e370c1bb38c9eadd76a17941bdb504dab9b99661de51fc38f. 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/KRA252000761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e40794a127ea6b4bbe18bea97fbb44117779eae7f5a71458fb5ec7aed06779. 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/KRA252000762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a112b461156d8bfde3ee4a2571c9595514607a4bce661bb8b9194e58f48ab63. 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/KRA252000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2337ecc73079e3ef803a92e5d103b9c410ecd6f91cb4081f4bf490d74917d3f. 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/KRA251902178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96311384f30e93ac1dc068695863f50264af44bcf3bf6e48eb5c9f014ff04f4. 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/KRA251902179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66466566e787a7586144b8ed1a447091d1beb7e1acf65c7c7c5bc61b8b63799a. 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/KRA251801988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd8a38e2a85c19f3a2be70c4b7addb9a67cc91135c7ed5eb2e6fe6f014e5153. 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/KRA251801989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e96042b692ddb848ff441ff0e195d2a2789a96f893fe8711db8c0e11704250. 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/KRA251801990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd088f3229293c64272fe74f3c1165db09dbb50fa486642939420de57e45ac186. 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/KRA251801991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69368257c6b162ba4839f4395dad90fb5b9ea480800b1e5592f78c204fc84921. 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/KRA251801992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407c5ad29a972117c9bfddf913c66bdedd4319cbd8c0a0e450a186a3069f2ad2. 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/KRB462000531.