{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:NBHI3PB7ONJ7SP7O4O5YNLMNO5","short_pith_number":"pith:NBHI3PB7","schema_version":"1.0","canonical_sha256":"684e8dbc3f7353f93feee3bb86ad8d7770508b3dbead288ab71ae324fc5bb01b","source":{"kind":"arxiv","id":"1908.02720","version":1},"attestation_state":"computed","paper":{"title":"WFIRST and EUCLID: enabling the microlensing parallax measurement from space","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Etienne Bachelet, Matthew Penny","submitted_at":"2019-08-07T16:47:30Z","abstract_excerpt":"The Wide Field Infrared Survey Telescope (WFIRST) is expected to detect hundreds of free-floating planets, but it will not be able to measure their masses. However, simultaneous microlensing observations by both Euclid and WFIRST spacecraft, separated by ~ 100, 000 km in orbits around the Sun-Earth L2 Lagrange point, will enable measurements of microlensing parallax for low-mass lenses such as free-floating planets. Using simple Fisher matrix estimates of the parallax measurement uncertainties, we show that high-cadence observations by Euclid could be used to measure ~ 1 free-floating planet m"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1908.02720","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-08-07T16:47:30Z","cross_cats_sorted":[],"title_canon_sha256":"cdda6cbe8769d598861c8c9abd388ce39314f021e06ec17582f076b21bc573d5","abstract_canon_sha256":"4204050b915db75d78060dd99f148cb8eeb605c064c2e5417e1aa7d48dcbcb53"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:48.939473Z","signature_b64":"tnT51dxD4klAoPN6MFVhVSHMuKcY3nrYzr4RspFxd1fOd6bQJj/vuPlbdroOWW1LG1UlEBLwYgzRoNeUb/f5Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"684e8dbc3f7353f93feee3bb86ad8d7770508b3dbead288ab71ae324fc5bb01b","last_reissued_at":"2026-07-04T23:55:48.939008Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:48.939008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"WFIRST and EUCLID: enabling the microlensing parallax measurement from space","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Etienne Bachelet, Matthew Penny","submitted_at":"2019-08-07T16:47:30Z","abstract_excerpt":"The Wide Field Infrared Survey Telescope (WFIRST) is expected to detect hundreds of free-floating planets, but it will not be able to measure their masses. However, simultaneous microlensing observations by both Euclid and WFIRST spacecraft, separated by ~ 100, 000 km in orbits around the Sun-Earth L2 Lagrange point, will enable measurements of microlensing parallax for low-mass lenses such as free-floating planets. Using simple Fisher matrix estimates of the parallax measurement uncertainties, we show that high-cadence observations by Euclid could be used to measure ~ 1 free-floating planet m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02720","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/1908.02720/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1908.02720","created_at":"2026-07-04T23:55:48.939069+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.02720v1","created_at":"2026-07-04T23:55:48.939069+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02720","created_at":"2026-07-04T23:55:48.939069+00:00"},{"alias_kind":"pith_short_12","alias_value":"NBHI3PB7ONJ7","created_at":"2026-07-04T23:55:48.939069+00:00"},{"alias_kind":"pith_short_16","alias_value":"NBHI3PB7ONJ7SP7O","created_at":"2026-07-04T23:55:48.939069+00:00"},{"alias_kind":"pith_short_8","alias_value":"NBHI3PB7","created_at":"2026-07-04T23:55:48.939069+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5","json":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5.json","graph_json":"https://pith.science/api/pith-number/NBHI3PB7ONJ7SP7O4O5YNLMNO5/graph.json","events_json":"https://pith.science/api/pith-number/NBHI3PB7ONJ7SP7O4O5YNLMNO5/events.json","paper":"https://pith.science/paper/NBHI3PB7"},"agent_actions":{"view_html":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5","download_json":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5.json","view_paper":"https://pith.science/paper/NBHI3PB7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.02720&json=true","fetch_graph":"https://pith.science/api/pith-number/NBHI3PB7ONJ7SP7O4O5YNLMNO5/graph.json","fetch_events":"https://pith.science/api/pith-number/NBHI3PB7ONJ7SP7O4O5YNLMNO5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5/action/storage_attestation","attest_author":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5/action/author_attestation","sign_citation":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5/action/citation_signature","submit_replication":"https://pith.science/pith/NBHI3PB7ONJ7SP7O4O5YNLMNO5/action/replication_record"}},"created_at":"2026-07-04T23:55:48.939069+00:00","updated_at":"2026-07-04T23:55:48.939069+00:00"}