Kitai may refer to: Kitai, Tanzania Kitay-gorod, a part of central Moscow formerly within the city walls Kitai Raige, a character in the movie After Earth Kitai, another name for Qitai, a city in
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 0x5743fff20db45752747fd50a360b40b42e3d7eff3d002cdf2a16235a1c70af85. 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/3d1241d9-37f3-4cff-bdd3-b617cc0b99c0.json and https://artists.proofprofile.net/proofs/artist/3d1241d9-37f3-4cff-bdd3-b617cc0b99c0.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 0x6f8246a9ffb70805c141fbcfa49ae7e8e60219fd214c6013d907c3e14f5568f9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ES73S1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf358109c41521a4967a146c4468650aeafa190d635baa57035902aacd0c2278b. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/ES5021702328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3c29f50e10fc6a69defb488e4b8dade34ceaeda047001df4b5749374518433. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ES5021800304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f7f05aae82ebfd204c73a17913f7362abe658281ff93778fe7cad1887a174e. 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/ES5021800613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e09749b247cfd12fd6f58f09b48a27c100f1b900985a0db358d1038001311. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ES73S1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e09749b247cfd12fd6f58f09b48a27c100f1b900985a0db358d1038001311. 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/ES73S1900027.
Borracho de Amor (David Van Bylen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0b208148b695b4f369f638ef9ce4ef8a5a666b80c12b55ac4e3250f8439cc4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES71G2211278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f02e12646d8946593b413555de74b7691c1798084dd2eac8023fd42fbe06b8. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ES71G2236154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a442bbd9a9e2bbba4aa7a476e1a5682dc34699029f3435e2e6b864b55e9f8e. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ES71G2215697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa809d36e3de8482eb59deb30363e300e4a9c105aa45c3d683bcafe5019152880. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ES71G2223456.
Somos Tu P*** Banda De Rock (Edición Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f02e12646d8946593b413555de74b7691c1798084dd2eac8023fd42fbe06b8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ES71G2236154.
Kitai & Amigos (Directo 10º aniversario, Teatro Eslava)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c225694460329d9f144364c16a7a9863584268f495c3b121a066509dd02c395. 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/ES71G2406768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d21456c2f3f8b6d61126386ec18fa70d2bc70643f312e914afbad8c3f586950. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES71G2509856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4364580228f0468b069720e463fab509197b2d6bb9d1a566c8f9b259936402d2. 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/QM7282566576.