Hathaw9y () is a South Korean indie pop band. The band currently consists of Kang Kiwi, Choi Seyo and Lee Teukmin. Since their formation in 2020, the band has released a studio album Essential (2023).
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 0xf1d5416766c733ca88492041e38bdfa150abb8cfedb0941f66a9f9523ae96fea. 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/7c104c62-b8b8-4c71-8b01-122931841316.json and https://artists.proofprofile.net/proofs/artist/7c104c62-b8b8-4c71-8b01-122931841316.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 0x2602696b1dc28889fe29e7a71722c5df9f86f9619082f9ff0257e2c6ca2b0609. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRMIM2027989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89257a88b41b38e2dc0c83340be6a3f6fb3592e30195706ecc20ab9d7e419098. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/KRMIM2027991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29615d7acc7a46f302ec8d8b8542eeaa4b7ca4ff8f9934972856bc0b455ec0ef. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRMIM2127087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6481c694a35958b6964002c2844d863d640664b86e77183303c2ef616a1a61da. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRMIM2217835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157f8af5dd6017e8fd10d4f7ce7711fdf8a76bed7fa6ca9a3232e2c475a0702f. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/KRMIM2358961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df5fdd7c28ff4ec350d37bd5a427478f5cd2be4b0e3340402d43f770e932b94. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:19:54Z), 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/KRMIM2358962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d8398ca9929ebcdaff435bc5b2065f7596e73068f466ca6438c8e4d2607e1a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/KRMIM2358964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730e0eaea01d95baddb9a603dd8d15be0294c206218b63b8d1c8a476f82e0c3e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/KRMIM2481567.