{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:H2AD6XRAC67BRYRO2CA5A6C5VI","short_pith_number":"pith:H2AD6XRA","canonical_record":{"source":{"id":"2309.04563","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-09-08T19:33:55Z","cross_cats_sorted":[],"title_canon_sha256":"3cd60c37ad066cfd79ad19f9c3dadd68e609e59107fd0c89ff0d214e56eae2d5","abstract_canon_sha256":"c24a9d8d4dde7579b268515674206f056dffec68ff8cf87ced111a5f106bcc77"},"schema_version":"1.0"},"canonical_sha256":"3e803f5e2017be18e22ed081d0785daa28dd878692ac8c3610c083f164bc4aae","source":{"kind":"arxiv","id":"2309.04563","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.04563","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"arxiv_version","alias_value":"2309.04563v1","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.04563","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_12","alias_value":"H2AD6XRAC67B","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_16","alias_value":"H2AD6XRAC67BRYRO","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_8","alias_value":"H2AD6XRA","created_at":"2026-07-05T06:49:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:H2AD6XRAC67BRYRO2CA5A6C5VI","target":"record","payload":{"canonical_record":{"source":{"id":"2309.04563","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-09-08T19:33:55Z","cross_cats_sorted":[],"title_canon_sha256":"3cd60c37ad066cfd79ad19f9c3dadd68e609e59107fd0c89ff0d214e56eae2d5","abstract_canon_sha256":"c24a9d8d4dde7579b268515674206f056dffec68ff8cf87ced111a5f106bcc77"},"schema_version":"1.0"},"canonical_sha256":"3e803f5e2017be18e22ed081d0785daa28dd878692ac8c3610c083f164bc4aae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:49:04.933175Z","signature_b64":"PQqJ/dPW5MTxG04ZjgI3vqZiosB3NgwuwW0qhnLuEhUb9KL+C5Y7IosZh7TOb2s75FDtv8wV0bKysV1gSbiEBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3e803f5e2017be18e22ed081d0785daa28dd878692ac8c3610c083f164bc4aae","last_reissued_at":"2026-07-05T06:49:04.932696Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:49:04.932696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2309.04563","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":"2026-07-05T06:49:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"biYC1HDR8EJuesM68emBV/plcBqKj79j3X3MXqtDdsrh+LYZMi9J6jrdMJTU4RS+BqXGMlFZCPS1LmXk7xmtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:08:29.908075Z"},"content_sha256":"49aa7ab5c0dd00e337bdb1092ab39ee8bcbf5933b664679a567929c419f4fd87","schema_version":"1.0","event_id":"sha256:49aa7ab5c0dd00e337bdb1092ab39ee8bcbf5933b664679a567929c419f4fd87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:H2AD6XRAC67BRYRO2CA5A6C5VI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Estimation of polarization aberrations and their effect on the coronagraphic performance for future space telescopes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Ewan S. Douglas, Jaren N Ashcraft, Kevin Derby, Kian Milani, Kyle Van Gorkom, Maxwell A. Millar-Blanchaer, Ramya M Anche, Sebastiaan Y. Haffert","submitted_at":"2023-09-08T19:33:55Z","abstract_excerpt":"A major goal of proposed future space observatories, such as the Habitable World Observatory, is to directly image and characterize Earth-like planets around Sun-like stars to search for habitability signatures requiring the starlight suppression (contrast) of 1e-10. One of the significant aspects affecting this contrast is the polarization aberrations generated from the reflection from mirror surfaces. The polarization aberrations are the phase-dependent amplitude and phase patterns originating from the Fresnel reflections of the mirror surfaces. These aberrations depend on the angle of incid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.04563","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/2309.04563/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":"2026-07-05T06:49:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qhSDxbCS4uBPKJoH9jqWgH5Xk6oZaHeFmBCWArvmZF6h8u3kSujMo1/EivkSS/2sHn9RR9yTd8fDydTW+f+HAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:08:29.908474Z"},"content_sha256":"346d900b3b6e472f184bb635a253a94b63c514615cdeca7ff1d53c6e5df7cbf0","schema_version":"1.0","event_id":"sha256:346d900b3b6e472f184bb635a253a94b63c514615cdeca7ff1d53c6e5df7cbf0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/bundle.json","state_url":"https://pith.science/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/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":"2026-07-07T05:08:29Z","links":{"resolver":"https://pith.science/pith/H2AD6XRAC67BRYRO2CA5A6C5VI","bundle":"https://pith.science/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/bundle.json","state":"https://pith.science/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H2AD6XRAC67BRYRO2CA5A6C5VI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:H2AD6XRAC67BRYRO2CA5A6C5VI","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":"c24a9d8d4dde7579b268515674206f056dffec68ff8cf87ced111a5f106bcc77","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-09-08T19:33:55Z","title_canon_sha256":"3cd60c37ad066cfd79ad19f9c3dadd68e609e59107fd0c89ff0d214e56eae2d5"},"schema_version":"1.0","source":{"id":"2309.04563","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2309.04563","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"arxiv_version","alias_value":"2309.04563v1","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2309.04563","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_12","alias_value":"H2AD6XRAC67B","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_16","alias_value":"H2AD6XRAC67BRYRO","created_at":"2026-07-05T06:49:04Z"},{"alias_kind":"pith_short_8","alias_value":"H2AD6XRA","created_at":"2026-07-05T06:49:04Z"}],"graph_snapshots":[{"event_id":"sha256:346d900b3b6e472f184bb635a253a94b63c514615cdeca7ff1d53c6e5df7cbf0","target":"graph","created_at":"2026-07-05T06:49:04Z","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/2309.04563/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A major goal of proposed future space observatories, such as the Habitable World Observatory, is to directly image and characterize Earth-like planets around Sun-like stars to search for habitability signatures requiring the starlight suppression (contrast) of 1e-10. One of the significant aspects affecting this contrast is the polarization aberrations generated from the reflection from mirror surfaces. The polarization aberrations are the phase-dependent amplitude and phase patterns originating from the Fresnel reflections of the mirror surfaces. These aberrations depend on the angle of incid","authors_text":"Ewan S. Douglas, Jaren N Ashcraft, Kevin Derby, Kian Milani, Kyle Van Gorkom, Maxwell A. Millar-Blanchaer, Ramya M Anche, Sebastiaan Y. Haffert","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-09-08T19:33:55Z","title":"Estimation of polarization aberrations and their effect on the coronagraphic performance for future space telescopes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2309.04563","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":"sha256:49aa7ab5c0dd00e337bdb1092ab39ee8bcbf5933b664679a567929c419f4fd87","target":"record","created_at":"2026-07-05T06:49:04Z","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":"c24a9d8d4dde7579b268515674206f056dffec68ff8cf87ced111a5f106bcc77","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2023-09-08T19:33:55Z","title_canon_sha256":"3cd60c37ad066cfd79ad19f9c3dadd68e609e59107fd0c89ff0d214e56eae2d5"},"schema_version":"1.0","source":{"id":"2309.04563","kind":"arxiv","version":1}},"canonical_sha256":"3e803f5e2017be18e22ed081d0785daa28dd878692ac8c3610c083f164bc4aae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e803f5e2017be18e22ed081d0785daa28dd878692ac8c3610c083f164bc4aae","first_computed_at":"2026-07-05T06:49:04.932696Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:49:04.932696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PQqJ/dPW5MTxG04ZjgI3vqZiosB3NgwuwW0qhnLuEhUb9KL+C5Y7IosZh7TOb2s75FDtv8wV0bKysV1gSbiEBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:49:04.933175Z","signed_message":"canonical_sha256_bytes"},"source_id":"2309.04563","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49aa7ab5c0dd00e337bdb1092ab39ee8bcbf5933b664679a567929c419f4fd87","sha256:346d900b3b6e472f184bb635a253a94b63c514615cdeca7ff1d53c6e5df7cbf0"],"state_sha256":"ae11a7383626323cecdfd572d27c1c758c3052065d39a164c6da7eff254e2dc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7tXWyYDJz4ZdVXhB1UXX1Lmp1aukPSLC28sxSDGIKAX4G7967SEZ2g2JtBkrB8hw8ilzir8On1eKAR8iwTBJCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:08:29.910733Z","bundle_sha256":"c04a7f305319241fef0cca4726fd481da78c87d82682c77604ab0765c30d54a7"}}