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 0xc6288479ef8dc16d1a9aab6b900b059324b57d5d5ef1e017301558b1d2792ac0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4ef300c-0814-49fc-b3f0-b0883d14e289.json and https://artists.proofprofile.net/proofs/artist/c4ef300c-0814-49fc-b3f0-b0883d14e289.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 0xcd87a3124f873a71b32fef825ac3c9bc2760688a5c7d5277c62a703d71c63e48. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWFN2381326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9466cc6d8d22d942b092b63271738e906415f7e02d35a83d585046f1c5f32f2. 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/QZ9ND2311170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7254dc5a7260d64dda87efdb3f6deb14d5ddaa4f127424fbc6eeac993b1e97a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ9ND2311100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d02ebabbbeea6f97d222173204dbca3b150fc886faab6b094e019cb66acf99e. 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/QZ9ND2310200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a49d6354cbd359964e83832d9e5b6d5cf34354cfc1655cc247a2c9e8a4ef485. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZ9ND2310060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c2822302cb897e8e019bcc5082f3fafe737331cfc10089a3f07b8222a92383. 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/QZ9ND2309290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7cecb245ba3e9aaebf96742027f0485e7072ede145e5433d1b55e5a5fdbf80. 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/QZ9ND2309120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7855bf332ed3f3f5648702f11050d5841d7098f2bc1663305d6476b98290584a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ9ND2309080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370d4b8585d0f26e14a14aa9623108e382391d4eeaa06ec6809ba53d45128a2d. 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/QZ9ND2309010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a6e2b73055686ea3504cb8676781db45371aee596c697bcf654881f076faf0. 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/QZ9ND2307281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342c36f25c09885e28b7657a4408d3e3735d17b20a4a013b2136b74c70a8ef12. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ9ND2307210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c47580cb6bb63f7aaa5f6ed509a671753444b68861fa805defa66eaf51e8a7. 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/QZ9ND2307140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf528d3af605f3bfa6e2cc80e627bb4b00418355c9da9e3f0717ce1f52eb63619. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ9ND2307070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2022a2ebbbe9628f2cac546bc4f5e88cce4ff74342120898674267ea1333ff. 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/QZ9ND2306300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b5ce59d4e612c85e110f2d28c6f07a6f384d053b87c697b951780344e93871. 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/QZ9ND2305260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369b7a32159c3b85d229d2981f569ec5f30694f6d3496b4bd0ffe3166375c7b2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ9ND2305261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc5f0006e2e74cc594b9ad5fa389bba8c72e24c5128a60ae6d1e22c32929e16. 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/QZHN72339345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e9dad43ed254dadf546f150845edb1cb85df0ca25435611d1f9bf6c077d9ed. 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/QZ9ND2407190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5c4245e77d190d4ac5f9b403811dae2e7629c40303495300fcf8f6b4b1a678. 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/QZ9ND2406280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042be8dfd8bc9970a1812553ebdbd0b6433098ead9e5d5bff0dd477e686e946d. 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/QZ9ND2406070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d877443a35b4a9cc998e27dd39b9a1a3d3481754b93692f63cca66cd32e15ec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ9ND2407050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccf2dac1f7d39aed769de81daad48d0b5404d0beb601c98d8bd302182cc7eca. 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/QZ9ND2404120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d75c22566a2551b9f87073314d9e0d4f5bc8c2f07d2c31c54e60e7574c14fb1. 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/QZ9ND2403150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f373264101ee46ad69fa40929b9e5a1a7e86c978a6921875db5e38a17ed7a1a. 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/QZ9ND2402160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9647b981789856932eec082056c5d3f158571d0f0b53f9d3eff25546f6ff924. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CA5KR2417290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cdc62b10568aed9f013521d9c8403a4ff64c6b0abe4151e1de17672ee90e86. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTBC2324706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c03294df721c7e8d05e5171bf29cda44d578caff5de219240919c07651a6ade. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ9ND2310270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d761cfb68a36063159a17b5b94b3bd64eee956311c4622aa0b47d90c53b5f54. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:53:29Z), 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/QZ9ND2310130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c189f5784bb375bcffb64b9d97ef1591d35576d361d897d36e3428cfe8b524. 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/QZ9ND2308110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecefa6bda3dc1b97fb552eb3466a7ef08fe92740af02e301fce6c381cb9e608. 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/QZ9ND2308040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb32cbb5746109bb46035d29a05273ef162ad94a05bc7348c767ee297f428e8. 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/QZ9ND2306090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e9039a2b2864943da1bd96deeb4588ad2283328954134f776d1da6b4880186. 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/QZ9ND2305120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa664af7cec95f2a09ffd4ae633deb9c30f33d112e34cd381b432a44fabe33cd3. 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/QZ9ND2305050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97059bd6b31e70f2b5b8921b5acce6fd2990a38177030fd05dc7b0b6828e4669. 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/QZ9ND2304280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4b87b16cca6e3dd67f576248d84b6aa45f2827e33a7fe7a5d4439d47cf6b83. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ9ND2304140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72928c5893f34ae4bd86bef72ecdca5c34481ab39b31a4163f5a5d6e6de2384. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZ9ND2304070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a59e6e1c8ad354dcc9f073257a6b25c69f4e39e805ed9f7d8e8189303cd96a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZ9ND2304072.
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 0x967b5ceb97bbb62589eb98d66c641ffbcc28d7453ba2f5fa8096486f14ded118. 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/QZ9ND2303310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8372b4137ab4a3e70a10e369734bc406f51879b2a4c14bfbcae7982d820980. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ9ND2303240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6248630bc4e853cb6ea6d472e27d15ef729b7dd0b215273197b20849ac6f63. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZ9ND2303170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe129d9bef871cfd191bbd91ba79556e1c572e84cb73ac702061e50919b0ff564. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US92U1908989.