MiSaMo (; stylized in all caps) is the first sub-unit of the South Korean girl group Twice formed by JYP Entertainment. The group consists of Twice's Japanese members, Momo, Sana, and Mina. They debut
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 0x20ddd70330202f764d9baaf7608f184e15fe5863753ba66727649764b8dd5b4c. 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/cff6ffa5-6d42-4c9f-ad36-d43cf90faf88.json and https://artists.proofprofile.net/proofs/artist/cff6ffa5-6d42-4c9f-ad36-d43cf90faf88.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 0x850ab0b4d11ef61094ca6f5e1fbfdc489d166d1c735dbd3922e005f0a4a83077. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02370420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bc97b33e66220d091e9d202cb5defa3f5e23e9c4dfedf3b0b003525e421997. 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/JPWP02370421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c47c3da34d10c436f6a303d1019ed29855a1bfb26db4873df6ee328d37ec2e. 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/JPWP02370422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e39b44acad72ca53f94d888deeab54c1c27e33f0ea4ea917e104a8221e4ec72. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02370423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be284fce7882c616cfe7353ddb922f70491834fc2e620a2f27d6adbd8681ac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02370424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9d2f3549e1e7c078e75c31bf025573f66cc66b2748136e9cba2de3af605642. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02370425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a950a76cb963108bb4c84ff4488f1a3e7a5f1d96d93a75a08061aa0cb20408. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c47c3da34d10c436f6a303d1019ed29855a1bfb26db4873df6ee328d37ec2e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02370422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a950a76cb963108bb4c84ff4488f1a3e7a5f1d96d93a75a08061aa0cb20408. 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/JPWP02300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd550bd396a7a0716d53b15abe2be893085cf4e50997d0056b682b30a88534a5a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02471105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3616dff2e71cf7f1d7a573c679db91b9a1604b42f4d3fd1444b481543c252633. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02471106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e9c92a63cac0f8b2c77372b9c573e341dab913ecffba57c61cae81917ea87b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02471107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4f032f373a6f33a9d351a2b2ad38050f5554690f6acb2c189c57425ff945cc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02471108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda308d3bf111c8ab70208c4a191caea2abf48aac5e9e90becfb1e89deead8c68. 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/JPWP02471109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216489ae299baf5f1e774e574e19c12a9f76e4b1164e9356521f6fae43e60ae2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02471110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa045459e791fafd3ee7b9b876a4c9d455ae71f6e2cf97f77ac182e2decb765. 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/JPWP02471111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307029a23729d6bad8980dd5a7d2813a86c712b37196174aad5542ed58b99d19. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02471112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30ba4037fe5aabd7c94ba871be615af57311d303864fc809e7f5aadc003e1c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPWP02471113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed30f64af33022176119b9c58cf5196499d4263c2c6793a910e4d4ddc86c167. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPWP02471114.