Xai, XAI or xAI may refer to: Technology Explainable artificial intelligence, in artificial intelligence technology xAI (company), an American artificial intelligence company Other uses Xai-Xai,
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 0xb284c4521a20d7e9ce0b7733e27847dc40efd02ab6ba383c7c418e94c21902fd. 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/825a7256-b728-4bb7-95a5-11bb4c1b13d0.json and https://artists.proofprofile.net/proofs/artist/825a7256-b728-4bb7-95a5-11bb4c1b13d0.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 0x2e2eacf2622a78894b400b10a75bdce5749c97dc387fc4b4dc47f01a12d50536. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/JPV431700522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127fd15046dd93d8b93e2ead47603cad356a1de0d0e1ad4a4db07b0c6e6aed82. 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/JPV431700523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd977277af72cfeb1619e0b0f070c21b962656e1ecdb95f73d2d2ca11ce9c13d7. 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/JPV431700519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1991a7f43e817492ed9c2e52955376dd3d4f5bf1ff080b6d811544a75b16cfd9. 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/JPV431800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf122347065a43101b8b35a3c67d62985442ce539904ab01b8d107ca8de6dfc48. 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/JPV431800427.
live and die(『GODZILLA 星を喰う者』主題歌・アーティスト盤)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5785a305ae7632d820708e4cd5bc9f0a0e380dc8ce4bc26eb8b26206c50a4014. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:00:13Z), 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/JPV431800452.
明日を訪ねて（TVアニメ『薬屋のひとりごと』挿入歌）
Towards the Light (from "The Apothecary Diaries" Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6282187daae2d85de416941dab87d97a82c3c743fa467ac14d4220d35854dcd2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:49:18Z), 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/JP92S2420162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16bfe7ae02c02c44f6769c82e7aabb265ae13c53499c8a9a4da63f593463c9e. 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/JP92S2420164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8beaf6302a66ccf80b544338b556b8b89ffb252607ef50295d18c4767c3b4d0. 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/TCJPF2554156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8beaf6302a66ccf80b544338b556b8b89ffb252607ef50295d18c4767c3b4d0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:36Z), 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/TCJPF2554156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8beaf6302a66ccf80b544338b556b8b89ffb252607ef50295d18c4767c3b4d0. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/TCJPF2554156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85412640bbc89b04f29edee025709c785bcd4a6eb5b7596ba5768979b83944b9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:28Z), 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/TCJPG2592905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8beaf6302a66ccf80b544338b556b8b89ffb252607ef50295d18c4767c3b4d0. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:32:33Z), 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/TCJPF2554156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61cc08ad69481ea18e375f634647febf9f2c4b7a48cfe470d90035097c3bfd1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPG2592893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85412640bbc89b04f29edee025709c785bcd4a6eb5b7596ba5768979b83944b9. 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/TCJPG2592905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e117bd350f700de4eee369a76288bbaf4da94de53edb552e6d4ccd5d774648. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/JPD732501665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac668ccb8db1bae10ff819655c3e52a14a7c007126c8d68abe1586c415c972f9. 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/JPU902204870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494fa52bcc7ed11559e687dd21d9d03f883933eb6f9eac5c97e511764f9bae8d. 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/JPU902305137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac668ccb8db1bae10ff819655c3e52a14a7c007126c8d68abe1586c415c972f9. 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/JPU902204870.
LEMONADE - from SawanoHiroyuki[nZk] 10th Anniversary Studio Live
SawanoHiroyuki[nZk] 10th Anniversary Studio Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc5e77fdc05254c6ebfaf8c34f730ac11481f7bd91220c59a84292bd0840bb7. 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/JPU902403337.
DARK ARIA <LV2> - from SawanoHiroyuki[nZk] 10th Anniversary Studio Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4030c63bba3d0d20433ca535a6ae2afc4eee6e5abed26d1d2dbcbd2d5133bfee. 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/JPU902403338.