Maimai may refer to: People Mai Hagiwara (born 1996), member of °C-ute Mai Oshima (born 1987), Japanese singer Mai-Mai Sze (1909–1992), painter and writer, translator of the Jieziyuan Huazhuan into 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 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 0xe69788826fea51918b63c0f2b1a7929c123e217d1e4cbb48a437dbfc7367e6b5. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fb5b1d9-157a-45fe-8a32-9fc28cfe6c9a.json and https://artists.proofprofile.net/proofs/artist/6fb5b1d9-157a-45fe-8a32-9fc28cfe6c9a.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 0xd119d23bd0246f6d9e33de25c4276e8de1727498adea47201ddea9e97617e99d. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPW462503659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc55cc60a0e231f69fa3ac69e9e1fe4c907b2e7b16b46e3a27a220cb531478b1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/JPW462503660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5125038335b554474862e75957092d97629f06e2eb8f0be45f0edfa585344a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/JPW462503661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d48df70aa5a1e8b380a740c2a2042fffae142183477fff5e0c2add4119208e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/JPW462503662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd997753286aebcdf54ddaeec60487f0ba273cc86c5c07d385bcdd962a352e815. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/JPW462503663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7879ec9339dd49c999a1a34cde516f937be729fff4fd7fa4b6dda10803a0baa. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPW462505103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd002528fbf8495e0af109eb2a9b67e09e5a8dd3f22246b702b8739fc86ae5a7. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPW462505104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72b15f0fc5e337452acb7275518b1dc6724494a9955d82367b44d67bb19e773. 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/JPW462505105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b986e28dd57b8be20aef3906baf341d0a7c58465c8cc217057e138e7a2a0dec. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPW462505106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70bcb2879d0f3543fd13c6c1b24c106e71dc0f4985a01a4acf1f8ba6f6d5142. 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/JPW462505107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa2f04c073c8266659e9c80993fc627ab135cb4288f76c074440467c8a6d266. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPW462509044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ff6f55b4b9861fdc8b7dfd8111ffd7edf34a9442bd3a98e99f09f5e4d98231. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPW462509045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7604a649808e798aee0624853bcceebfe5f81c637a30a125936f98a5a00a9d77. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPW462509046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5ddfcdba4bfa060f98ddada11912f90b92eb838e3a5578dc20a421865f3bab. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/JPW462509047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc17bface8a7a587e6f2a7af9561944da6c0104fb7474153b3b48434c85abfb0. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/JPW462509048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e12dda3bc83eef4dfc4fe8d2a65ee4be1dddd90fb8cc7e04d62a2fdaf60eb. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPW462509054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f423d50f43e3950dd205a2240e5ac6805af6c7ea8aababf1eebcfd17e518942. 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/JPW462509055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d3183d83e5e33e83595e817ba2f5e4716bc7c020cef2cf518e9d26e10fa779. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPW462509056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d28d4c912ce3ce32091808805d92137046bee029291fa680c0eea30c41f561. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/JPW462509057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31004ebe5b633d1be1375ea028f26f7c933d4814051145809c08fa0ea2ba29e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/JPW462509058.