{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:5WDJSIDRGQ7FLSW3B2WA6HPIMO","short_pith_number":"pith:5WDJSIDR","canonical_record":{"source":{"id":"2504.00295","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-31T23:46:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ff3deb401e2b9f01ffca8e3aa38f1893475c6a535048bfcd918cfbe260352d25","abstract_canon_sha256":"96a681e3b65dde78445a391ed55cfa509acd0a22822c435bfd067f23db50836b"},"schema_version":"1.0"},"canonical_sha256":"ed86992071343e55cadb0eac0f1de86395ce1decf233a15f8735ddb022f2ab00","source":{"kind":"arxiv","id":"2504.00295","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.00295","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"2504.00295v1","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.00295","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"5WDJSIDRGQ7F","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_16","alias_value":"5WDJSIDRGQ7FLSW3","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_8","alias_value":"5WDJSIDR","created_at":"2026-07-05T10:42:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:5WDJSIDRGQ7FLSW3B2WA6HPIMO","target":"record","payload":{"canonical_record":{"source":{"id":"2504.00295","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-31T23:46:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ff3deb401e2b9f01ffca8e3aa38f1893475c6a535048bfcd918cfbe260352d25","abstract_canon_sha256":"96a681e3b65dde78445a391ed55cfa509acd0a22822c435bfd067f23db50836b"},"schema_version":"1.0"},"canonical_sha256":"ed86992071343e55cadb0eac0f1de86395ce1decf233a15f8735ddb022f2ab00","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:42:23.981825Z","signature_b64":"IdRcWUAu0dXTFa3juPof/J3aamdjswFbAgO1Pm46GGhk7XGqvvxcnZxBqLVUcgmkz2rTtOgTZAUqaWC8LEkECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ed86992071343e55cadb0eac0f1de86395ce1decf233a15f8735ddb022f2ab00","last_reissued_at":"2026-07-05T10:42:23.981352Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:42:23.981352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.00295","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WsbqkBC2Jvb88MrhIW3KfkwcZm8E2pAD3VlpmZ0c+qDzgupJjFlzTodWVuhesNIdPnQYPIaxgV1Jj0o2w6UQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:18:21.246346Z"},"content_sha256":"1ed70f2f00441a49c49880924e9d7efdf7f8c24351f65fab5c9b120e265ece93","schema_version":"1.0","event_id":"sha256:1ed70f2f00441a49c49880924e9d7efdf7f8c24351f65fab5c9b120e265ece93"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:5WDJSIDRGQ7FLSW3B2WA6HPIMO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Review and prospects of hot exozodiacal dust research for future exo-Earth direct imaging missions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Denis Defr\\`ere, Florian Kirchschlager, H\\'el\\`ene Rousseau, Isabel Rebollido, Jeremy Scott, John H. Debes, Justin Hom, Karl Stapelfeldt, Ramya M. Anche, Steve Ertel, Thomas A. Stuber, Tim D. Pearce, Virginie C. Faramaz, William C. Danchi, Yasuhiro Hasegawa","submitted_at":"2025-03-31T23:46:49Z","abstract_excerpt":"Hot exozodiacal dust is dust in the innermost regions of planetary systems, at temperatures around 1000K to 2000K, and commonly detected by near-infrared interferometry. The phenomenon is poorly understood and has received renewed attention as a potential risk to a planned future space mission to image potentially habitable exoplanets and characterize their atmospheres (exo-Earth imaging) such as the Habitable Worlds Observatory (HWO). In this article, we review the current understanding of hot exozodiacal dust and its implications for HWO. We argue that the observational evidence suggests tha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.00295","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.00295/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:42:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Epv2LE/bcKuHiA/XWUhbccxWVTLk/QGzu1ly7ZUyx+he9Ta6RPzsWlrXy9bTdMePnnf/wWCmFOVflzaKGdfECg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T23:18:21.246852Z"},"content_sha256":"1b11d6f56bb43275d923d7e6ee097e84987f26782d2087c5a471ba68382104c4","schema_version":"1.0","event_id":"sha256:1b11d6f56bb43275d923d7e6ee097e84987f26782d2087c5a471ba68382104c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/bundle.json","state_url":"https://pith.science/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-13T23:18:21Z","links":{"resolver":"https://pith.science/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO","bundle":"https://pith.science/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/bundle.json","state":"https://pith.science/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5WDJSIDRGQ7FLSW3B2WA6HPIMO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:5WDJSIDRGQ7FLSW3B2WA6HPIMO","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"96a681e3b65dde78445a391ed55cfa509acd0a22822c435bfd067f23db50836b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-31T23:46:49Z","title_canon_sha256":"ff3deb401e2b9f01ffca8e3aa38f1893475c6a535048bfcd918cfbe260352d25"},"schema_version":"1.0","source":{"id":"2504.00295","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.00295","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"arxiv_version","alias_value":"2504.00295v1","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.00295","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_12","alias_value":"5WDJSIDRGQ7F","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_16","alias_value":"5WDJSIDRGQ7FLSW3","created_at":"2026-07-05T10:42:23Z"},{"alias_kind":"pith_short_8","alias_value":"5WDJSIDR","created_at":"2026-07-05T10:42:23Z"}],"graph_snapshots":[{"event_id":"sha256:1b11d6f56bb43275d923d7e6ee097e84987f26782d2087c5a471ba68382104c4","target":"graph","created_at":"2026-07-05T10:42:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2504.00295/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Hot exozodiacal dust is dust in the innermost regions of planetary systems, at temperatures around 1000K to 2000K, and commonly detected by near-infrared interferometry. The phenomenon is poorly understood and has received renewed attention as a potential risk to a planned future space mission to image potentially habitable exoplanets and characterize their atmospheres (exo-Earth imaging) such as the Habitable Worlds Observatory (HWO). In this article, we review the current understanding of hot exozodiacal dust and its implications for HWO. We argue that the observational evidence suggests tha","authors_text":"Denis Defr\\`ere, Florian Kirchschlager, H\\'el\\`ene Rousseau, Isabel Rebollido, Jeremy Scott, John H. Debes, Justin Hom, Karl Stapelfeldt, Ramya M. Anche, Steve Ertel, Thomas A. Stuber, Tim D. Pearce, Virginie C. Faramaz, William C. Danchi, Yasuhiro Hasegawa","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-31T23:46:49Z","title":"Review and prospects of hot exozodiacal dust research for future exo-Earth direct imaging missions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.00295","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1ed70f2f00441a49c49880924e9d7efdf7f8c24351f65fab5c9b120e265ece93","target":"record","created_at":"2026-07-05T10:42:23Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"96a681e3b65dde78445a391ed55cfa509acd0a22822c435bfd067f23db50836b","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2025-03-31T23:46:49Z","title_canon_sha256":"ff3deb401e2b9f01ffca8e3aa38f1893475c6a535048bfcd918cfbe260352d25"},"schema_version":"1.0","source":{"id":"2504.00295","kind":"arxiv","version":1}},"canonical_sha256":"ed86992071343e55cadb0eac0f1de86395ce1decf233a15f8735ddb022f2ab00","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ed86992071343e55cadb0eac0f1de86395ce1decf233a15f8735ddb022f2ab00","first_computed_at":"2026-07-05T10:42:23.981352Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:42:23.981352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IdRcWUAu0dXTFa3juPof/J3aamdjswFbAgO1Pm46GGhk7XGqvvxcnZxBqLVUcgmkz2rTtOgTZAUqaWC8LEkECg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:42:23.981825Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.00295","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ed70f2f00441a49c49880924e9d7efdf7f8c24351f65fab5c9b120e265ece93","sha256:1b11d6f56bb43275d923d7e6ee097e84987f26782d2087c5a471ba68382104c4"],"state_sha256":"7a64824a4fe6f5561c59933c45c1c7448bbb7264020996e47d564eb612d54e27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3+MI/mNxxps4S4KY0vl2ihQPx8e5VKsKOpHCumw6xrdOuF4ri4l2XEEs/pQTFD+hcn1txm2tDsLPJ7kkin0UCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T23:18:21.297207Z","bundle_sha256":"8e067cae4669bddff6da1418948690679c9b84f183882819748ff15cf9b4faf8"}}