M-Girls () was a Malaysian girl group consisting of Queenzy Cheng, Angeline Khoo, Cass Chin and Crystal Ong. The group was formed in 2001. The group released over 20 studio albums under Starmedia Ent
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 0x8bcb53223a07d82f7f88b714b628471d97bbd575a4da691c870e659075fd37c9. 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/7f5427e0-b1cf-45d5-99ee-7955ee250823.json and https://artists.proofprofile.net/proofs/artist/7f5427e0-b1cf-45d5-99ee-7955ee250823.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 0x5fbf69351098f8a9c585b7942c54022b95ed5b4abe4926d615b8ed95a043381d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MYWT10450194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fac3c0c771bd92608e943a11efb79724fc705c040de755790f12d2d1c4dd708. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:28:47Z), 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/MYWT10880023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949c7d8823d4389cd4ba6e3478e2636aeef7fde0293889dea51decf83de2476f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MYWT10880019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7cccb4ae74b436cdf1d11a719c84ffe93a5a4353b65d278e5d952c46ce2939. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/MYWT10880016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0a7addb3a8bff52e89576820d2b73e50c3f031bd02f41ac0e5c247aed12516. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:47Z), 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/MYWT10880024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d810d304019282931349fe236b1cbd950ecc59f5c35d76f79a356955c68326b. 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/MYWT10880018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b22a76163400762a6167dc7fa72756d94e1e0a9ce92d203d3189bb7ef735bf. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/MYWT10980062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffae4d0ccfece9184c601dbb2fa2a93be3f5245aba6ed71b4b06e5ee7ddb56ab. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/MYWT11255267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c973041edf4b8859c98b0a11143f2b69df4dd811210f6b2c6e0649dea746db. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MYWT11255269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4933dd06602de9c6cdc71578a9fd60dbb34f45b34d978a0a56ea37634f654775. 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/MYWT11355314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72b0d17c8d62965a68af59d25af5699331e5fd0c5baa24cfa4e5209d7009313. 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/MYWT11355315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812ee2894cccd3914a647b9e75bc0d4af6b06fdf5ba88cbae6f50a4045dee2d4. 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/MYWT11355316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7fb7c08261cf688f55546e2877de237911556dc2feaf39b682782d7f18bb1d. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/MYWT11355321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c825e699c5f53041017aff36fd6623bcd97542ee49d39fa9a1b9b136ad28b6. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:04Z), 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/MYGF11500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f8c783af608f0c4eebbf60c576cdfd40b547651fe96a63f9394956b8dfe61. 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/MYGF11500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be23d67d6dabface3fdb1627671172c2e7badfbcb11ba4e0fdee0a445756b92. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MYTM17704001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62eff5af8900932b5c7064910c6b1105447a52cc06b3562afd3fea0cac3d5eb1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MYTM17704007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca84da3d8d4ef3f48cd1d295343a6bc9508336297b46ad881f44bba38e9c4f4. 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/MYGF11500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc808d39a784196c8bad874b2567edb4a747945955f988e669872909eae23daad. 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/MYGF11500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc76026c2d874ecd72ec62c0cd167e7c153a6bdf0b43b94fcd7c0bf03919715c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MYGF11500005.