Jambinai () are a South Korean post-rock band formed in Seoul in 2009. The band currently consists of Kim Bo-mi, Lee Il-woo, Sim Eun-yong, Yu Byeong-koo and Choi Jae-hyuk. Their debut album Différance
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 0xe408485ef8fed1437913ef39770e0dbb7586e3cbf9058c9cf6c6e86240e8d4cf. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7fcf151-5204-4827-b653-f9f48d7e3617.json and https://artists.proofprofile.net/proofs/artist/b7fcf151-5204-4827-b653-f9f48d7e3617.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 0x6d84ecde550a9f1c5ef25b10588ae169254e8bc468cd6f15ba5aa62a4032d6e7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBBRP1653508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x992ba989fd8dfd88c7a0c0b58e3f4e7fbb7bb61f76abed5427e6eb9523a8eb37. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBBRP1763201.
Rebel: Thief Who Stole the People Pt. 8 (Original Television Soundtrack)
Rebel: Thief Who Stole the People, Pt. 8 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23f304170c67e9cea774a45e13cb6b10a6696d34633f7578bf50f52952eeef6. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:33Z), 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/GBBRP1991601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86be038a191bec74a6f8fc8074ef0e4fcf36b1344cfd98bef88e2a94ea569ca3. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:45:29Z), 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/GBBRP1991602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee7235fd13034a80fa17be66f94d6b091f39d2ee2d10e29f8d221043fa7fca. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBBRP1991604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a3c16cf7cce5b9671a865bba3ef302fcefaa312b9e7cf31519179039dab402. 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/GBBRP1991608.