Dabda () is a South Korean math rock band. The band currently consists of Lee Seunghyeon, Kim Jiae, Park Jungwoong and Noh Keohyeon. Since their formation in 2014, the band has released the studio alb
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 0xd31c7e17a5489e50ac42a8b908332bcf9b28fceaff728989fc05703f45fd1d02. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa840d44-4c59-4c8a-a679-de5e19c4c067.json and https://artists.proofprofile.net/proofs/artist/fa840d44-4c59-4c8a-a679-de5e19c4c067.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 0x9f9f9ae8de7ef64acfcabc5069cb0a45a735739b7cc649fe4e7ce18a5df95adc. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/KRNAR1604374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a0aa957bd1a9ce7f5dda15c67ea4529fde80ea74e8313612fd07ef8600096d. 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/KRNAR1604375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff361d6f7549e5afae77ae0d212c2849df6418a1e7a47abe59612ea7b2ed92d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/KRNAR1604376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efbe82484aae045f2994bf13d08e047dab903d2869d243c461aeb12d752c601. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/KRMIM2014080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8c209defedc5c7cbf57c092ca5b1beee9e76da5cc24740ea3e153d434f2ce5. 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/KRMIM2014081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e5e80ed3d7714e0cfb2cd24f1964509e359cf9bf8feac88cf354a9f377b7c8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/KRMIM2014082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cc3c9ed20acbdded91f4374d193196ba4b66dc4b3aad1c830cee4941a6a4c0. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRMIM2014083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd41c8371efea48e26071792c056540768edfe036ac9324e7b089c74090abcb. 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/KRMIM2014084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622be810329d4e94832c468fab3dc72465d9bdaaf18c85c7a0cecd8e5113b4f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/KRMIM2014085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02206fbc7ec2de46becd889f82f99033132c5c9cbbf882a92f075f6fe8faf62a. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/KRMIM2014087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff339284ee93e1a4746576dc6a278d1f401d7f52f06f3b21aaf9cf44fa29c5d6. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/KRMIM2014088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a0f85d7e2e1dc89a9a7e585f049d99a21dcf7f92c91e52eed44f00a4181615. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TWA452100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fca843329d41a50ec800945444bef9936edce95b1bca84dcb8804f75df6c7ec. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRMIM2366544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf67232623b4d07ebacf85b0bf35600f9359d294fd1dee2373016193501e58e. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/KRMIM2366545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403a719b8ef51118ae9983601d891c011b9d0ec827097d40c692f39c06fe2bbc. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRMIM2366548.