Baechigi (; stylized as BaeChiGi) is a South Korean hip hop duo formed by Sniper Sound in 2005. The duo moved to YMC Entertainment in 2012. They debuted on February 17, 2005, with the album Giant. Me
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 0x70de19af2cb7a5c7a7561720b91121c93d700bc109ec8579c72f83a810ed8700. 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/9e607a21-142f-4d0b-acdf-801dc546ed2b.json and https://artists.proofprofile.net/proofs/artist/9e607a21-142f-4d0b-acdf-801dc546ed2b.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 0x511b14f682c8bdf0523efa7b9404f89a8a6b0ace86100cfbddc9a1a61ce222f0. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/KRA340905381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4852d5f49d7e32444a699913a53cff59ea6354c409e6cc42ceb8b1e5384e0f8. 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/KRA340905382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977002e3ee483f9cd8db036e5da8e9628edebc69d779c234df8f1c0e57e9c72b. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/KRA340905383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c562bb22049c6622b73666988d21954919ddb31ce9c50636efba3ea7d0be00. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/KRA340905378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977002e3ee483f9cd8db036e5da8e9628edebc69d779c234df8f1c0e57e9c72b. 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/KRA340905383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9190e5b2143d3fb655ba65c64fcdc0fed54f402db57108551406903edfd0053b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/KRA340905428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640651444f3b7b191edb83a9e72133f598e37695d2614ad3e31ea421595d7e1. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/KRA340905870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640651444f3b7b191edb83a9e72133f598e37695d2614ad3e31ea421595d7e1. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA340905870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42db4a07e51e0cc50e901eba177081ee36273c77bc5d97f5373b6001fc6464ab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRA340905872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068598425d827b64afd0f6dce0211e0beb3f46b2a069d2c468c1d95b293ca72f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/KRA340906075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff58ffab19ca4215e1b82da21b7b9e483a9b646b6e830591e53be76f50edf01. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA340906076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068598425d827b64afd0f6dce0211e0beb3f46b2a069d2c468c1d95b293ca72f. 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/KRA340906075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff58ffab19ca4215e1b82da21b7b9e483a9b646b6e830591e53be76f50edf01. 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/KRA340906076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e85e301ff3fde5a61613fae744218fe40584b161820dd6db213ad82adc285a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRA341641172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93cdfbd68b9e5d1c6b675066ea47b51d00c77ce75dd68d17b5c5e749ab441f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/KRA341642598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693c12e2309a46836b911f65de2bd7450f162ef458323f97175834e426bfe0fa. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/KRA341642600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb178fc3d62ce3ea6449d4d7b4291b3234337b0c636d0e290eb14f2cd21411f5b. 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/KRA031209583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9439d1a87b9f9acfdd3db65122ab5cbfae82fcf0b3d22efa5b2b114c6cab4f. 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/KRB921940314.
Who Are You : School 2015 (Original Television Soundtrack), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb33acdf24ceb0d82e8ffe664b182e486601f3b7fce6494cc43e984752d663d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/KRA031211870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf257848de4daa0de113a8dedb15a4f445f894f32b16d8dc4b43a758b7ccaac5. 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/KRA031212833.
Who Are You: School 2015 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cd54eb44b175493773dfba8c2f2693f3e847b2a35b88c3e022a49615cdbb2c. 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/KRA491500472.