Bei may refer to: North, commonly encountered as (Mandarin: běi) in Chinese placenames Chinese stelae (, bēi) Bei River, a tributary of the Pearl River in southern China Bei (surname) (贝/貝), a C
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 0x57128ee4773d32c3fe7b9681b64022bad7430bd5dca87b01c150e9c917551857. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/590caa42-7ac2-440f-b975-e4b88fc3688d.json and https://artists.proofprofile.net/proofs/artist/590caa42-7ac2-440f-b975-e4b88fc3688d.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 0xa35a9c00b136bbbe0e366ae598179646f302f9f4028b2925804aba6d2681901f. 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/SE5BU2551097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe436b3983c0aa4fd3315824350e0bb366fef3f05c90205c43f8e1e1a1dc0e6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/SE5BU2556492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b9af9781b97bc483481297c1337d32cc6a417cacfc6161f358bd66d6e080d5. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SE5BU2558796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d5c73df2253f3a1da209721838de91ff3ac51f038d94d978ac0dd991fc6f5b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTAZ2502381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d22677068f10a516b6caac9412ae3d43a4e69b0a6d19ebe37b9208c98485075. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZTB82529580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0f394c421791d4aac6d00ee6d6c3e7f1b178a44b053f622d27aa6accaf70e8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/SE5BU2559865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a36301acafc411dce2fe3508efb862aa67d73fd353e9bd20c7f2606001367c0. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/SE5BU2559870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e412d1958af82133987776700a52d8fafa00058444332485283f9de6a39ed2. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/SE5BU2559857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3737d332a58233f4eaf9cdd64de4bf09c29f6e7849345004a6a9b171e2c157. 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/SE5BU2565469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167e5495467fa31914a287699dd77500bc933c72cc37fd36d92ceb5cb3eeb858. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/SE5BU2559854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811df5e8fcc2a8b38a863ee39f78947e9aff4e1ee68e9896a08e80df238f7bd7. 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/SE5BU2559864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536a94f117b3398f459c255d277ae4c90a38efce0f73b4b559ec1d768226de73. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE6XY2503358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc986e2d79b188973aac389800c6b06045cfd17ebef3b67765ac2aa84c85e7189. 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/SE6XY2503364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409800848086bca94142af43b7db59885b38fb304ec271ae889950d76fc81f01. 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/SE6XY2503241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2759a9959ff8c094fdbd2d09c90f1ad7b8ae14cb571f2f7cb0f87e4418316461. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/SE6XY2503245.
犬を抱っこするネコを抱っこする
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9661a12d0e3233649cb01f7de164805c14712e7e56ed8910ea35ab2edbcec7e6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE6XY2503349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38abff1497a3395b3ee720ded7d8a9bd824de51aafe37d641df7441a43ff8e93. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/SE6XY2503348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6348fd5a08340e2ab198b1ba9421c9048788747d3701e3f52e41fc04bc3e9473. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/SE6XY2503243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c08c8b28e0e9f55dcce0dc7503a37c081762bdcdc095e2b4109fac0a4ea9e4d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/SE6XY2524693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4f7acfaa575454f28cad0dcff24fd13e6751c22a24622cf31bc6ccd240635b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/SE6XY2524692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4fc59ca4aefb8fb5c66c52287ef3979f26095a84dbdfa30f28579ed0f48ccd. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/SE6XY2524688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d6a3530524406292a42a23ae8df08f2d8a81cf09e9fa4bb3787ce52281bc7b. 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/QZTAZ2508263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864b5d02faefd3ce06c34de2ce0f042d14d341b3fffb42cfa14e74672be445fe. 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/SE6XY2524700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee1801adc032d465c8c5bcf75b9e1e80c084fbb2f528ac26bea881ea5c07cd5. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZTAZ2565548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666b66cc9857f25f6145abdda18a3f3d2024eb95bfafdc28f0c40d8e83510f8f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZTAZ2508269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07760541fe4c6328154c623a7813fdb4202d3be5444a6e3ebb886aa97a922b2f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZTB62561802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b718dc940478cc6c88e5d7d3b3e2fdf3cf667814100d389b043e5f7da9e3b10. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB62559955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8301c44a4c0606077c60aa60278dea0bcee8b1d9e8ca89cd2579e7dcc3ea95. 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/QZTAZ2506757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb98773fcb3d6751c56a09bea250be2aab9a84bf54f889cff45470654ba9eb6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZTAZ2562748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c9a5e78d7975181d14bf1bf78fc921040801f5126f4839435c3a6167f7cb94. 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/QZTB82531267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56910b06932d2667bbe03d3e07d035fce82e13b1717df849b6a124794221f290. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTBB2505208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abf268276e4ce4988bd7284bb8eda6576a6928d5dc7c473520a9620a3579c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTBB2507183.