{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:YGAIN3VRF2UIYACBGJN2SXXOYW","short_pith_number":"pith:YGAIN3VR","canonical_record":{"source":{"id":"2509.03870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-09-04T04:10:08Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"fed932f385efa64b0b384dbf07e9b250d28fa9336ce6c0ec3b0e9d4835d377b8","abstract_canon_sha256":"91054eaa50d99bde141a81fa7350f9110cf09d864e6357b9efc2761c1631d693"},"schema_version":"1.0"},"canonical_sha256":"c18086eeb12ea88c0041325ba95eeec586264d9cc48d426c4651f06216c5fca6","source":{"kind":"arxiv","id":"2509.03870","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.03870","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"2509.03870v1","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.03870","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"YGAIN3VRF2UI","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_16","alias_value":"YGAIN3VRF2UIYACB","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_8","alias_value":"YGAIN3VR","created_at":"2026-07-05T12:04:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:YGAIN3VRF2UIYACBGJN2SXXOYW","target":"record","payload":{"canonical_record":{"source":{"id":"2509.03870","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-09-04T04:10:08Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"fed932f385efa64b0b384dbf07e9b250d28fa9336ce6c0ec3b0e9d4835d377b8","abstract_canon_sha256":"91054eaa50d99bde141a81fa7350f9110cf09d864e6357b9efc2761c1631d693"},"schema_version":"1.0"},"canonical_sha256":"c18086eeb12ea88c0041325ba95eeec586264d9cc48d426c4651f06216c5fca6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:04:48.392212Z","signature_b64":"r0a5y9EbNlhURaGWBeFyc0DTjC1/wO4fM8pOGPLRmSxtdbnYcOcF9j29fFrqaYaYMjMS/toUDyhXQSz8bIMxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c18086eeb12ea88c0041325ba95eeec586264d9cc48d426c4651f06216c5fca6","last_reissued_at":"2026-07-05T12:04:48.391700Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:04:48.391700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2509.03870","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":"2026-07-05T12:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mFvQu3eVUHOb4vUh7ExKTYH1XRAQS2vvufZt0d1Y8Em0YEKMUW26CgT+PR6ht9dHTkOx9MrF2wa8exv1hPgEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:26:56.444133Z"},"content_sha256":"9e8507b22a0c9731723b7f32ee10019fd3289ce9d50feb67af49a951b678ce37","schema_version":"1.0","event_id":"sha256:9e8507b22a0c9731723b7f32ee10019fd3289ce9d50feb67af49a951b678ce37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:YGAIN3VRF2UIYACBGJN2SXXOYW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-shot focal plane wavefront sensing with the spatially-clipped self-coherent camera","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Ewan S. Douglas, Jared R. Males, Joshua Liberman, Kevin Derby, Sebastiaan Y. Haffert","submitted_at":"2025-09-04T04:10:08Z","abstract_excerpt":"The Habitable Worlds Observatory requires active speckle suppression to directly image Earth-like exoplanets. Focal plane wavefront sensing and control allows us to detect, and subsequently remove, time-varying speckles through measurements of the electric field. Two measurement-based wavefront sensing approaches are pairwise probing (PWP) and the self-coherent camera (SCC). However, the PWP technique is time-consuming, requiring at least 4 images and reducing the speed at which aberrations can be eliminated. In the SCC, a coronagraph mask diffracts light outside of the Lyot stop, where it is "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.03870","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/2509.03870/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":"2026-07-05T12:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pWNLf3q7RAOWum1R/L6LZgNTenflbYgnnwY3nFBLdhp9XAfE0ayG1yHOOmXUkkZo+nYn6q2pDBcSS7RjNbz8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:26:56.444552Z"},"content_sha256":"b991f6fe1c7324d04799372bb7eb2a8998221ad006f0510066002f90c2241188","schema_version":"1.0","event_id":"sha256:b991f6fe1c7324d04799372bb7eb2a8998221ad006f0510066002f90c2241188"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/bundle.json","state_url":"https://pith.science/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/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":"2026-07-07T05:26:56Z","links":{"resolver":"https://pith.science/pith/YGAIN3VRF2UIYACBGJN2SXXOYW","bundle":"https://pith.science/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/bundle.json","state":"https://pith.science/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YGAIN3VRF2UIYACBGJN2SXXOYW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YGAIN3VRF2UIYACBGJN2SXXOYW","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":"91054eaa50d99bde141a81fa7350f9110cf09d864e6357b9efc2761c1631d693","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-09-04T04:10:08Z","title_canon_sha256":"fed932f385efa64b0b384dbf07e9b250d28fa9336ce6c0ec3b0e9d4835d377b8"},"schema_version":"1.0","source":{"id":"2509.03870","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.03870","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"2509.03870v1","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.03870","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"YGAIN3VRF2UI","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_16","alias_value":"YGAIN3VRF2UIYACB","created_at":"2026-07-05T12:04:48Z"},{"alias_kind":"pith_short_8","alias_value":"YGAIN3VR","created_at":"2026-07-05T12:04:48Z"}],"graph_snapshots":[{"event_id":"sha256:b991f6fe1c7324d04799372bb7eb2a8998221ad006f0510066002f90c2241188","target":"graph","created_at":"2026-07-05T12:04:48Z","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/2509.03870/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Habitable Worlds Observatory requires active speckle suppression to directly image Earth-like exoplanets. Focal plane wavefront sensing and control allows us to detect, and subsequently remove, time-varying speckles through measurements of the electric field. Two measurement-based wavefront sensing approaches are pairwise probing (PWP) and the self-coherent camera (SCC). However, the PWP technique is time-consuming, requiring at least 4 images and reducing the speed at which aberrations can be eliminated. In the SCC, a coronagraph mask diffracts light outside of the Lyot stop, where it is ","authors_text":"Ewan S. Douglas, Jared R. Males, Joshua Liberman, Kevin Derby, Sebastiaan Y. Haffert","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-09-04T04:10:08Z","title":"Single-shot focal plane wavefront sensing with the spatially-clipped self-coherent camera"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.03870","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":"sha256:9e8507b22a0c9731723b7f32ee10019fd3289ce9d50feb67af49a951b678ce37","target":"record","created_at":"2026-07-05T12:04:48Z","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":"91054eaa50d99bde141a81fa7350f9110cf09d864e6357b9efc2761c1631d693","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-09-04T04:10:08Z","title_canon_sha256":"fed932f385efa64b0b384dbf07e9b250d28fa9336ce6c0ec3b0e9d4835d377b8"},"schema_version":"1.0","source":{"id":"2509.03870","kind":"arxiv","version":1}},"canonical_sha256":"c18086eeb12ea88c0041325ba95eeec586264d9cc48d426c4651f06216c5fca6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c18086eeb12ea88c0041325ba95eeec586264d9cc48d426c4651f06216c5fca6","first_computed_at":"2026-07-05T12:04:48.391700Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:04:48.391700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r0a5y9EbNlhURaGWBeFyc0DTjC1/wO4fM8pOGPLRmSxtdbnYcOcF9j29fFrqaYaYMjMS/toUDyhXQSz8bIMxAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:04:48.392212Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.03870","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e8507b22a0c9731723b7f32ee10019fd3289ce9d50feb67af49a951b678ce37","sha256:b991f6fe1c7324d04799372bb7eb2a8998221ad006f0510066002f90c2241188"],"state_sha256":"3b3e99011e36d91dfc4602843679bc7f678b80baed17d0ef1c34d88f324b28d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9H6IYyAUwbUULzthhAnoKzv9WrP0JTSxsdeEgI4qvp+Gzl6kONpPRKrDivyDwlWuPEMasd7OUO+naOO/NpZBCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:26:56.447038Z","bundle_sha256":"6ea28003a3001fab951e19f029cbd42f5a0589c8c06d47a3052bbf996b473f3d"}}