DKZ (; formerly Dongkiz; , stylized in all caps) is a South Korean boy band formed and managed by Dongyo Entertainment. The group comprises Sehyeon, Mingyu, Jaechan, Jonghyeong, and Giseok, and previo
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 0xeb09f2545b2ce3890406c531e4701e0700cece7fb75d5232f22b5d3b555f38f5. 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/e3a6cd15-fcef-4670-ad5e-411185e56680.json and https://artists.proofprofile.net/proofs/artist/e3a6cd15-fcef-4670-ad5e-411185e56680.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 0xc4a19d5004cfb1577645ec26c578305e5c1a014b16271af3d561d352f15ded1e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/KRB471901508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3471c041d235ba56faebfc44d368099604cff921e1ba33d0a0c19ff36da5ed60. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/KRB471901512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead52be33e6f19c8dd0fb98535a3253f7c230526e50cede809a349bf7ae6e1d7. 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/KRB471901513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b91cd880a735704cf1066c242e7f0b8b13be89e67271f9372d68302e77d3a08. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRB471901536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b81788739dae6a38d30bc4caf953927c1d4fd6d28305cd33c6696b48ddf85a. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/KRB471901537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb93c5350c9f867d74dc0acd496b2c38cef1226a0c7689fa33321fcf09a40af. 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/KRB471901538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb680e45e0a2eaa3bb6827b01b467ecf65797eb2bf2a4387367285c00961e080. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/KRB472001036.
DONGKIZ 5th Single Album 'CHASE EPISODE 1. GGUM'
DONGKIZ Year End Project Song 'It's All Right Part.2'
DKZ 6th Single Album 'CHASE EPISODE 2. MAUM'
DKZ 7th Single Album ′CHASE EPISODE 3. BEUM′
DKZ Year End Project Song ′It′s All Right Part.3′
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5989f32771707e77816906310385a5958772cf82392c50f3ab2c24bdd06f05. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRB472202478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b730ab42ab1ac2dd4fe2ae390a620415788fb847e0d199027ee9e9cc9d922f9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRB472300514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f65d1e59e7d77c4a7cc76f95dd94a5d406b488d4cdda603ba32ee511b843d8. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/KRB472300524.
DKZ Year End Project Song ′It′s All Right Part.4′
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82e33affee0a137bc33b30239442cdd325f03ddfdaf01af9d94016000132a73. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRB472400571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fae0176dabcfdaeee6dbb40ac5debf576d0c36f028a5ab1c6f07563c451b9b. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRB472400572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d477148573058110af808128121dab58ff3704b1f5bfc38b10642a3e6469d9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:10:39Z), 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/KRB472400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cb63c025bdb87ba0f27dd20eb26942318845715bf4e19faabd93eca4dd515e. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/KRB472400574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf154c3e5464cffa0c4cda211ced42e1b66f450b4320bea76a79e724c558b58a3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:45Z), 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/KRB472400575.
DKZ Year End Project Song ′It′s All Right Part.5′
Check in Hanyang (Original Television Soundtrack) Pt. 6