{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:GMKVCWOSFI57B3RMVEJ4C7LEVE","short_pith_number":"pith:GMKVCWOS","canonical_record":{"source":{"id":"1304.5853","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-04-22T06:42:12Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"eeaec1ec9ab95c69adfe5013497ab37116d21afbf0b022ec5e9a6a7feff807e2","abstract_canon_sha256":"9f1312c421249382cc109a4bf0ef679c00de9799b89fe9747c4b2ae72210873d"},"schema_version":"1.0"},"canonical_sha256":"33155159d22a3bf0ee2ca913c17d64a92b14d337c09a9bfeb8e9a6637864a0d2","source":{"kind":"arxiv","id":"1304.5853","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5853","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5853v1","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5853","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"pith_short_12","alias_value":"GMKVCWOSFI57","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GMKVCWOSFI57B3RM","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GMKVCWOS","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:GMKVCWOSFI57B3RMVEJ4C7LEVE","target":"record","payload":{"canonical_record":{"source":{"id":"1304.5853","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-04-22T06:42:12Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"eeaec1ec9ab95c69adfe5013497ab37116d21afbf0b022ec5e9a6a7feff807e2","abstract_canon_sha256":"9f1312c421249382cc109a4bf0ef679c00de9799b89fe9747c4b2ae72210873d"},"schema_version":"1.0"},"canonical_sha256":"33155159d22a3bf0ee2ca913c17d64a92b14d337c09a9bfeb8e9a6637864a0d2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:23.793135Z","signature_b64":"wyDPr7t7uiqvxUjJ/GYkQbLkfcej/Gv45FByByDxXfcbhp5HeiIdnpA4hNSNhfAm63RNofaov3e2J+SCfs6gBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33155159d22a3bf0ee2ca913c17d64a92b14d337c09a9bfeb8e9a6637864a0d2","last_reissued_at":"2026-05-18T01:50:23.792474Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:23.792474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.5853","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":"2026-05-18T01:50:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XiEoi388Tmwr+0zvws2tB1U/MB6Di0vHPvrPaxR+PUVExqLE/83sU723KnEx1+EaOPaUWj6shdzg1EaOCCXnDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:19:06.093696Z"},"content_sha256":"5ebc791471baac52c9d43b2742b703bc7b3a344f7d40c7cb4a8b7ea36f608d6b","schema_version":"1.0","event_id":"sha256:5ebc791471baac52c9d43b2742b703bc7b3a344f7d40c7cb4a8b7ea36f608d6b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:GMKVCWOSFI57B3RMVEJ4C7LEVE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct Imaging in the Habitable Zone and the Problem of Orbital Motion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Andrew J. Skemer, Jared R. Males, Laird M. Close","submitted_at":"2013-04-22T06:42:12Z","abstract_excerpt":"High contrast imaging searches for exoplanets have been conducted on 2.4-10 m telescopes, typically at H band (1.6 microns) and used exposure times of ~1 hr to search for planets with semi-major axes of > ~10 AU. We are beginning to plan for surveys using extreme-AO systems on the next generation of 30-meter class telescopes, where we hope to begin probing the habitable zones (HZs) of nearby stars. Here we highlight a heretofore ignorable problem in direct imaging: planets orbit their stars. Under the parameters of current surveys, orbital motion is negligible over the duration of a typical ob"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5853","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":""},"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":"2026-05-18T01:50:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GpM3GAdIgHuf24bsGWEjQtaZC8wyGpALt3mwlMMGXPXLJ7THusSeVrtqR4YxPgbyvTxzIMVjEVdvnimxIcihAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T10:19:06.094041Z"},"content_sha256":"c017e2f934ee883ec387b9d2e5ec7a424f78d661413ef0bea49ef0d07383d534","schema_version":"1.0","event_id":"sha256:c017e2f934ee883ec387b9d2e5ec7a424f78d661413ef0bea49ef0d07383d534"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/bundle.json","state_url":"https://pith.science/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/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":"2026-06-08T10:19:06Z","links":{"resolver":"https://pith.science/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE","bundle":"https://pith.science/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/bundle.json","state":"https://pith.science/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GMKVCWOSFI57B3RMVEJ4C7LEVE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:GMKVCWOSFI57B3RMVEJ4C7LEVE","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":"9f1312c421249382cc109a4bf0ef679c00de9799b89fe9747c4b2ae72210873d","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-04-22T06:42:12Z","title_canon_sha256":"eeaec1ec9ab95c69adfe5013497ab37116d21afbf0b022ec5e9a6a7feff807e2"},"schema_version":"1.0","source":{"id":"1304.5853","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5853","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5853v1","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5853","created_at":"2026-05-18T01:50:23Z"},{"alias_kind":"pith_short_12","alias_value":"GMKVCWOSFI57","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"GMKVCWOSFI57B3RM","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"GMKVCWOS","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:c017e2f934ee883ec387b9d2e5ec7a424f78d661413ef0bea49ef0d07383d534","target":"graph","created_at":"2026-05-18T01:50:23Z","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"},"paper":{"abstract_excerpt":"High contrast imaging searches for exoplanets have been conducted on 2.4-10 m telescopes, typically at H band (1.6 microns) and used exposure times of ~1 hr to search for planets with semi-major axes of > ~10 AU. We are beginning to plan for surveys using extreme-AO systems on the next generation of 30-meter class telescopes, where we hope to begin probing the habitable zones (HZs) of nearby stars. Here we highlight a heretofore ignorable problem in direct imaging: planets orbit their stars. Under the parameters of current surveys, orbital motion is negligible over the duration of a typical ob","authors_text":"Andrew J. Skemer, Jared R. Males, Laird M. Close","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-04-22T06:42:12Z","title":"Direct Imaging in the Habitable Zone and the Problem of Orbital Motion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5853","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":"sha256:5ebc791471baac52c9d43b2742b703bc7b3a344f7d40c7cb4a8b7ea36f608d6b","target":"record","created_at":"2026-05-18T01:50:23Z","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":"9f1312c421249382cc109a4bf0ef679c00de9799b89fe9747c4b2ae72210873d","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-04-22T06:42:12Z","title_canon_sha256":"eeaec1ec9ab95c69adfe5013497ab37116d21afbf0b022ec5e9a6a7feff807e2"},"schema_version":"1.0","source":{"id":"1304.5853","kind":"arxiv","version":1}},"canonical_sha256":"33155159d22a3bf0ee2ca913c17d64a92b14d337c09a9bfeb8e9a6637864a0d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33155159d22a3bf0ee2ca913c17d64a92b14d337c09a9bfeb8e9a6637864a0d2","first_computed_at":"2026-05-18T01:50:23.792474Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:23.792474Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wyDPr7t7uiqvxUjJ/GYkQbLkfcej/Gv45FByByDxXfcbhp5HeiIdnpA4hNSNhfAm63RNofaov3e2J+SCfs6gBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:23.793135Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.5853","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5ebc791471baac52c9d43b2742b703bc7b3a344f7d40c7cb4a8b7ea36f608d6b","sha256:c017e2f934ee883ec387b9d2e5ec7a424f78d661413ef0bea49ef0d07383d534"],"state_sha256":"785e5f0e740dfb7fdee9ab8a7983111e03b34e56b8b5a3247f2f8922cc10cd9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2+JrZKUTOXg/I6Zmt/9MYiMA08XGVP2GF8VPJeoE+fHT0Uq+K49DFOlaQxIdSqsFe9xkwpICaMjvXjMFBxPlBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T10:19:06.095931Z","bundle_sha256":"24a89b11572d1cf93a66c42381eea5992e9ca32430c40dc48a0a4acd66ac9ac6"}}