Miss A (; stylized in all caps or miss A) was a South Korean girl group formed by AQ Entertainment, a subsidiary of JYP Entertainment. The group debuted in July 2010 with the single “Bad Girl Good Gi
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 0xd6396a0065f4e96f3862f46e3f462053f7d9ffbe91acd38e01667581861e0e81. 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/9e143f90-4e43-4d64-924d-f7ab3ff1f1e6.json and https://artists.proofprofile.net/proofs/artist/9e143f90-4e43-4d64-924d-f7ab3ff1f1e6.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 0xf23996a470b05710811e4c1656995a85a44431878b30ad52e9ab03ec387b03cc. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/US5TA1000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7cae1285f028ca9923a8b39d63d416ea1c6f165d345f1166b1eae3aa844d0e. 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/US5TA1100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93a4adbdb25353a39f3c9a8d82a6ddfce56edab4c4f40a910b52b1fc86e4b75. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US5TA1000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e0733d87b529f459e2ea1339538959721d0eacb71247ee4455c9b5d4c2659f. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US5TA1100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa146edad22e83af9f11f54459c9d0d9355e1e1e054bb5555beb885c9a41d319a. 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/US5TA1000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f083c935b7646bc6fad563f9b3d978db55ac6d425cfdbf2dfce0f3ed154e99. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/US5TA1100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bfdbc5c2f215355e3c0fe750268121e23f350cc4843f4ba96f29220c870a40. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US5TA1000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78835aedefb5f14e7599f1f7d560f8693e22c69f42347500aaf655f13c930ae9. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US5TA1000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d29bc4c5aa0d715f0a4bcceb38cdf66d0a0458415a78a25351c78cf9bd18c1b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US5TA1000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e931ad719e681669d6fab8badf81b9fff9a3084e60fca56e65770c6e1e9a37. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/US5TA1100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc3dcd37f352264da5f1cfb1e134b3ff204c52c15ce3b4d1e426d8ca6d73d70. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US5TA1200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67773fbb451b71e7ce522430c5a28b43eb22a1b363756cf2365fb9797def23f2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US5TA1200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a517992b7adf1c907747b6b66782a334c6d4c4ba433c43e3f05ba9193c7bc1. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/US5TA1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b64521f98f5094215b76de33d30b9a13bf347dbef087e7d1d1b267a639bce. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/US5TA1200801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b64521f98f5094215b76de33d30b9a13bf347dbef087e7d1d1b267a639bce. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US5TA1200801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5006478fdc46f9c8e1503479fac36d0d363f075eeb4833854121f9d5769d9d96. 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/US5TA1200802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826216a36d7b1f14adea014af47f2b6f3bcea01caa322bb7502dcf942c51df96. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/US5TA1200804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287d7b5bb474f6c2ad824a1e0d06e37aa8d381b3d8dff0dc31ebed168e440195. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US5TA1300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34d878b5f271229981f5ff7d5992f53acb62972b40c5cf23e9f36fbc998659c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US5TA1300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf697f5da8bab06aaedb7c8b29d078761a4801a9ff31fd299638252782b905b30. 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/US5TA1300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792ee96cf1fb4a2c8faafcad5d39ebc85c88fbd7d78d67ec72e9b696c2f32358. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US5TA1300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418ecac9418eaaaa88362f349c38e1d328454c5370b82aa5388e97efc9dd0d46. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/US5TA1300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25196a4ce31eca37de4d4f15551b6ea63f3a21251b1cdc8697da9fb61d3d38b. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/US5TA1300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5011f4d8a23660a338bbf61b5845b207a243f05feb05b687ec3a83fbbd1077f5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US5TA1200805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe875f89a96824231b97e90b6d06b1ef60b80ca2cd25dddd7d8aebfb6dbc31d08. 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/US5TA1300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfd1c666c25ad18ed00e8e469d1731267a7fcf3adc28f107d419bd678d49433. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US5TA1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb928762688da5475099b03cdeee9d71e7a246dd1cf52d87c803764f95e750383. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US5TA1500013.