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 0xf6d090f1215bbc9bd52f950da172c69a83d2d52b18e59da34a63bda3a05fde4d. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/254b55dc-0b94-4d3d-984b-80c2ecb0e75a.json and https://artists.proofprofile.net/proofs/artist/254b55dc-0b94-4d3d-984b-80c2ecb0e75a.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 0xecce2517e47498c65b5a27d1ef52a53383a1afb24c92064e1479d1b145ac2d3f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USHM22491412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63801d5600b92a0882d1f874fc5e69cab67f9123fe8180b95a178be05ea2c70. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22491413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330834d9704949907f639d339642bc097fc835a0b73f07c51815d53b05c11601. 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/USHM22491414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7165fa9164e1fab3ebf24f8519e356581c34339af8760fa3fac97bc50c846ac. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22491415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bfa0184bc42400d6e8f4aa139bbfc4b2fc1ab79bc6b6012b71ed83e1ad688e. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USHM22491416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa97b6d12d401aa0f7c912eb368c96173ac53b2e95b82d79f476dc9b17cc47b. 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/USHM22491417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ef7590e6a170f6009d65d536c868af09d11e661180e62c951bd278290176e5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM22491418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbea0f30a15d1267a0bd8865201ee9e16ed6b5ae9652bfdc38f9d2d0bd80e38. 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/USHM22491419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e945b6be81e01108bae264931215a170fd10dad8ca5f2f119aab47a0e9a124. 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/USHM22491420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ff9885290ad52869eaa0c9d3d6248d8a437e4bc1f6b587d39b003b8fcdc55f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USHM22491421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef71b6df68b0c4150fd78b269d3cc6d625e2ff15a92d82af85ea0d547cd0e7c3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22491422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6750dd127fdfda00d0ac4576a7e81c94f3e2bc7bae26731f103dc3693f78bada. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22491423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ef3e69d3ebe405eaf100f85dd02ef44d76f4ee2e1180337509c22683ba2a4. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/USHM22491424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903a80a576b64c2581ab93220eba1608da5c528d1e5ab7560523e873df6c542a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22491425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c18c35d10856034d654476686195444b95bcacdb9e1f61d389c690e6a5297. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGH2065298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e64fd3b5a121a6f55c6955c6276926f85223c69810b25cf15e240f48bb8bc80. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USCGH2065299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090678911094eede25684a55b2579ed2bdd66b41a34ef2ae3387cd39fde9a9ce. 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/USCGH2065300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7641ca174b59acd5be5b0ac01e4af2b96775800a0fc77bedd20371df0423e7. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USCGH2065301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6836dd3b127607dd0e48b935a011e38311ac085ea5eed38a3c3ed7fc636bf832. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGH2065302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79f7ca723763502e208142866d532dc93ebba23a7463ef7036dd36ad625b041. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USCGH2065303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6440b486c9ccf6fb3787fcf5f8cad0ba8309f5bcabb8c3f56188ddb0d8eff359. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGH2065304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ea203bdaf9cebd40db2adb0229b6ea940f35c4535b79be4d3a078bb9899ac3. 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/USCGH2065305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346cd097c5a614318167dfcf38b1b438032c51e3f55beaaaaaf3d7cbf2669d2f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGH2065306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bd52c9f69e102ca97febe8c300c9b85725cb1c6e0cf60c726789aaccf8aeeb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USCGH2065307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8a94403e6b14f8c421b91f3d06f9e64710a227a4a5694dc14777ca7d425bee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGH2065308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf87cc5dc51504fab53e2bfa5885644e5e346a6d36cbeda3dd41f47d695ad00f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USCGH2065309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc402090be003fc74579b9e1345f84717ff2d118eab3c36644d1cc76d3ca2a1. 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/USCGH2065310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc54f74a414ceec7dace4f4c296da6b8df7521e0258a7c3c3e714842559a029. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USCGH2065311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95669daeb2afe8e515ada30e314303a2edeaedf7e1c9886044f20b9087464a3e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USHM22325094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36789d25d4b2568d89c459ec0a66adf8a44cb5172c0717ad298a911e87b8803. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USCGJ2317865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b02e9db9f523610a9437b27ca35ab0ae99a733b743c3b0e88ce6f0acc2134bd. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USL4R2239625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865de8813e7f944d24c1cbecf25be2c362912ea5fa3650ec8ec83044ba8637e2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USL4Q2241462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf6d60d17a2d140473b84d46c180920b0b5ca78b97afcfc9fec98d3fb732eb2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGJ2290981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86b55c04981072aafe16c3dabc7f1c1dfab6eafe0f332ee170dd1d9dcbffcb6. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHM22198771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5966b72a15eb76191c4749724f710858b409fa8b4ab4921a3b29642f2c759f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM91968730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa185e7a776be4e6b86d14389dcd802d6df65126938558803ff2f97c8579dcb. 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/USA2P2237553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af6d08a6788eac7b3191ee02dae39eb91be6ff8821fa39d02b0380abf265bee. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZMEM2349793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b5b3ea6c17f89b4aa875bfa5230fbfd02320c1053b75fb82ad143b3146fe69. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFV2427217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16695e25034d9b9f600f1acf6c06636029513f269217d034a52dff7db912134. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFV2427218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a0fa84eba9b03d1fbc8f499ea39862b662bcdc16dc194b2106b475d2eda567. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZWFV2427220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21e2462639df7785ff30e28fefc12d897848d1c0baceaacc817c3390d79d574. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZXN42300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d40fcf6e8f5f95a14df6dc2f994e9c715b50114637db0af9f43b01c9e2e0466. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZXN42300069.