Oh My Girl (, stylized in all caps or OMG) is a South Korean girl group formed by WM Entertainment. The group is composed of six members: Hyojung, Mimi, YooA, Seunghee, Yubin and Arin. Originally an e
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 0x03d6afe62edf1ad99471c6e753ff314a7685d4762045dd9167cc1c274df11742. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a99f1cb8-29e1-4223-9843-ab73e321a131.json and https://artists.proofprofile.net/proofs/artist/a99f1cb8-29e1-4223-9843-ab73e321a131.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 0x7b45b43be95c07c5e899d45ffdbb32cd3249abbc2be4b1c814afb5b947b28088. 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/KRB462200204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa3703fe0042542447535b6bef21e38a028ee37ddb8044d51d87d23f9c8c39d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRB462200205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb214481f352bb6ee1beae98c271b879ce3d9eafc26c7b8895e207f35201602be. 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/KRB462200206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe660338da33a7d3bec89998fe1e6b44f061a6e2eee66172c7f631b3fc3d04430. 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/KRB462200207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14606bdc49f21f73364756b0ad8dba0bbe374cc62d999e4935aa0265d8575b2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRB462200208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fdda99bb93302c0ac511a2c3ef9fa428944eeacd8d426085dabd1b9be55411. 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/KRB462200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4867575114a0053abc00d2cc80670dfa34831b49c3fb25c0ce3dc7f80abd4c6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/KRB462200210.
OH MY GIRL SUMMER PACKAGE [FALL IN LOVE]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c8044190ab2601a638dace04e734bc09f051a56740934984ab06e117b300bd. 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/KRA381903713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dd55915746c2449fe3575a4f502789b2a716c50048aeac66eacb87b8db0b6c. 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/KRA381903714.
Say It To Me (KARTRIDER X LINE FRIENDS [Original Game Soundtrack], Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c265bc47be75cadfd4a3758b65fce4b16727c52bd7ddc14466e151bf05f55e5. 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/KRMIM2179624.
JAPAN 2nd Single 「Dun Dun Dance Japanese ver.」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97ed6eaca67c8cb250a875eac20e7728f385125061b69259861af9c981c7331. 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/KRB462100515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71def1d5459ff5d03c43206a34b15b1c2300bf4558e33b2718611c9e54e0ca70. 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/KRB462100516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3ffd691d36f5535f1911cff8c2fbc05ff702eccc0c17a162f336bf4b48383b. 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/KRB462100517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cbdeee7690e8865fcab5598e9357a5852a5fda6e2eaaa7c9338c3d36b9a347. 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/KRB462100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f07514e5600709cc33bf2ae5ec75b2ca5e04de95a91dd81182dc09534deacd. 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/KRB462100519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2fcda43aa65ad434b278e3797dce2d51c697f5378ef217ff7b3d00e700688. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/KRB462100520.
Etoile / Nonstop Japanese ver. Special Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790de1eeab52665740fc9a5ed5e5429c9da2769b276d0367df6fb250c402b448. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPU902001711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d57ac333d045c333b35596863de4e4109fb446f3f14b8bf98eac83850074167. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRA382003369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acbb1eb0e6fbabf22c1527c0ba5467e364501e1203d431b238f5d603c6d9e9c. 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/KRB462000297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499e63a68067670a495b65c19e000ea0f1908fab29dfedbf294fda5c8a1133c8. 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/KRB462000298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2974c61dfb2e2c344e20b4d586e61b6e23e8c00a65590b66bb63c28112b4ad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRB462000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84090e6a8e07d06b2f143ee78c9c174ac547008f37c38c3a54cf2a833f1dfc30. 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/KRB462000300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0affa5651b577deba0ab7f81eca8da26f61cb926c1e2ede2d7948a7f65bf41. 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/KRB462000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492db948ff7f2fbdc6dfe84a6a143b361365cf8223d70ecd4030346828abda54. 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/KRA491900993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffca472d34d55f58aa112518bfbf4e4258b294dfc5449904e20749f4d3a07d5. 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/KRA491900995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998de5ad8f7fcdc24631882ecb01d3b2174a9023955b14ed695eaa8a7c46657f. 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/KRA491900781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24583e1921dcf1a63e370d8738330dcffad05f70cda454568d49241e625996d9. 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/KRA491900782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba019b0690c633e80ab738c2198f1092958aca5e8c726c1bd2669384278d71e. 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/KRA381801069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215a156cff33ee684d49eb246a03e38b07d6d65f8b81bc000913b43692f2f011. 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/KRA381801070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3d63467ad03fa546a1593f227c4f1fdf190e7e3628219e8b0460817eeff569. 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/KRA381801071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebff0e50c2382a4eb2543170dd8f37aadea6537a03f906a2387871e2604b3835. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/KRA381801072.