Kim Yoon-sung (; born January 14, 1981), known professionally as Gaeko () is a South Korean hip hop recording artist. He and Choiza comprise the hip hop duo Dynamic Duo, which rose to fame upon the re
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 0x055389d5a2fe93115adb9c75d24892e38ad739157180ddc97de24c380d106588. 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/fa369f3d-6f20-486a-8378-4d71bc470ca5.json and https://artists.proofprofile.net/proofs/artist/fa369f3d-6f20-486a-8378-4d71bc470ca5.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 0x599c066e1bff9ab0e376a1c7657088b3b3b631fe9297e7c92fde00e37c53d454. 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/KRF952000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8536482aa21da91ed5cf64084311efbc387704861b92a19c26148691d43b3c4f. 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/KRF952000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6e23d03814650978f49903ce62c2fdfb898f49724877f887da97649cde9028. 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/USA2P2407477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1becbbfc44b24ff194ce7545d7f8f8df4b836573955b5e3b61a3e924c1e2394. 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/KRUM71600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2d186213f67303aebb0ba1026f0e5191425ea1a3938c60635e026d8dc0dd03. 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/KRC712300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8705df63bcb4c84135b2e9fb135b13c5ebd5daec50f0dd61ecdd27441198b96. 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/KRNAR1604063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02335edc04df0d24da0c6a69417fa691e6e9b5739d93d641929fdfc3fb36df73. 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/KSA012253031.
Y earned (Feat. Gaeko, SOLE) (Prod. Primary, plusNONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fed7506579ab98af7b1607765985218363f7b27fc158bf3825d2a54e2b4799. 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/KRA492001572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a4a85b3caa5123226337b486c092e18a4bec84e1b35deff781be04aceb9323. 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/KRA381210366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f562870a68561ff8b16a496932365f8f7b53211b150d8c67d49856e152b409e. 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/KRA491800358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ff55e758727fbf963285cf9badd3c0818faca8df1a0b6636271feb807a77a5. 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/US5TA1300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7ed14cbbd8a8e51a7a661e2c0cf59536a810b9a878645141ad9918b8cd66b7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:42:35Z), 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/KRA381500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc045c8754bc372b38e00136004ad0f62f1098d21e9365e5b25d43cb203216a96. 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/KRA351507479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa16de658cd255c131e349d7081fcc216c2727c0ef5a936e2c4825929a7338c. 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/KRA382302686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbbb10bf5aad1d44370185aa0dcdc2bc2c5af081a682cc9e70977623113210b. 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/KRA301800604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6094c8aff0d0bda39ee6365c33742c8052504072a163cf75d6a9762fa28913c6. 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/KRA381203036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9172521886764d3bf232e15b289556eb74094c5dc81ff6a3cff5712ba9408252. 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/KRC712000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8705df63bcb4c84135b2e9fb135b13c5ebd5daec50f0dd61ecdd27441198b96. 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/KRNAR1604063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf59a0dd1371db9e3100e31cd6b97fe7126455270ee7f711a141c3f61869f0d9. 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/KRB141900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b7d52ced79d78dbb610ed23879c9821ec08e4f7306c93fc3fb93435bfcced0. 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/KRA382160118.