{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:RE3MSEHGVIVXUMOLKVEQ3LDCUA","short_pith_number":"pith:RE3MSEHG","schema_version":"1.0","canonical_sha256":"8936c910e6aa2b7a31cb55490dac62a02fdf4a982eacd51d23f44875289220cf","source":{"kind":"arxiv","id":"0704.1454","version":2},"attestation_state":"computed","paper":{"title":"Ground-Based Direct Detection of Exoplanets with the Gemini Planet Imager (GPI)","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Lawrence Livermore National Lab, (3) Universite de Montreal, (4) UC Santa Cruz, (5) UCLA, (6) JPL, (7) American Museum of Natural History, (8) NRC/Herzberg Institute), Anand Sivaramakrishnan (7), Ben Oppenheimer (7), Bruce Macintosh (2), David Palmer (2), Don Gavel (4), James Larkin (5), James R. Graham (1), Jean-Pierre Veran (8), Kent Wallace (6) ((1) UC Berkeley, Les Saddlemyer (8), Marty Levine (6), Rene Doyon (3)","submitted_at":"2007-04-11T16:56:25Z","abstract_excerpt":"The Gemini Planet (GPI) imager is an \"extreme\" adaptive optics system being designed and built for the Gemini Observatory. GPI combines precise and accurate wavefront control, diffraction suppression, and a speckle-suppressing science camera with integral field and polarimetry capabilities. GPI's primary science goal is the direct detection and characterization of young, Jovian-mass exoplanets. For systems younger than 2 Gyr exoplanets more massive than 6 MJ and semimajor axes beyond 10 AU are detected with completeness greater than 50%. GPI will also discover faint debris disks, explore icy 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":"0704.1454","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-04-11T16:56:25Z","cross_cats_sorted":[],"title_canon_sha256":"694afc3d745a5671b52065b5f98f091185e2574ca469f105c0606598eab30146","abstract_canon_sha256":"2249ee1dde2c701830051b4a1c2e2e770fb6e131ff110f030be919d0a4ec2b8f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:57:40.596331Z","signature_b64":"dRloTf9g460xlWjdxgc6CI7JQgEteT5J+jnczhIIBtrgl9VkIf6KbDdTPDTTtWWS7usLv3d9r+mCp+TrLTMjAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8936c910e6aa2b7a31cb55490dac62a02fdf4a982eacd51d23f44875289220cf","last_reissued_at":"2026-07-04T23:57:40.595956Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:57:40.595956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ground-Based Direct Detection of Exoplanets with the Gemini Planet Imager (GPI)","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Lawrence Livermore National Lab, (3) Universite de Montreal, (4) UC Santa Cruz, (5) UCLA, (6) JPL, (7) American Museum of Natural History, (8) NRC/Herzberg Institute), Anand Sivaramakrishnan (7), Ben Oppenheimer (7), Bruce Macintosh (2), David Palmer (2), Don Gavel (4), James Larkin (5), James R. Graham (1), Jean-Pierre Veran (8), Kent Wallace (6) ((1) UC Berkeley, Les Saddlemyer (8), Marty Levine (6), Rene Doyon (3)","submitted_at":"2007-04-11T16:56:25Z","abstract_excerpt":"The Gemini Planet (GPI) imager is an \"extreme\" adaptive optics system being designed and built for the Gemini Observatory. GPI combines precise and accurate wavefront control, diffraction suppression, and a speckle-suppressing science camera with integral field and polarimetry capabilities. GPI's primary science goal is the direct detection and characterization of young, Jovian-mass exoplanets. For systems younger than 2 Gyr exoplanets more massive than 6 MJ and semimajor axes beyond 10 AU are detected with completeness greater than 50%. GPI will also discover faint debris disks, explore icy m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0704.1454","kind":"arxiv","version":2},"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/0704.1454/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":"0704.1454","created_at":"2026-07-04T23:57:40.596012+00:00"},{"alias_kind":"arxiv_version","alias_value":"0704.1454v2","created_at":"2026-07-04T23:57:40.596012+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0704.1454","created_at":"2026-07-04T23:57:40.596012+00:00"},{"alias_kind":"pith_short_12","alias_value":"RE3MSEHGVIVX","created_at":"2026-07-04T23:57:40.596012+00:00"},{"alias_kind":"pith_short_16","alias_value":"RE3MSEHGVIVXUMOL","created_at":"2026-07-04T23:57:40.596012+00:00"},{"alias_kind":"pith_short_8","alias_value":"RE3MSEHG","created_at":"2026-07-04T23:57:40.596012+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/RE3MSEHGVIVXUMOLKVEQ3LDCUA","json":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA.json","graph_json":"https://pith.science/api/pith-number/RE3MSEHGVIVXUMOLKVEQ3LDCUA/graph.json","events_json":"https://pith.science/api/pith-number/RE3MSEHGVIVXUMOLKVEQ3LDCUA/events.json","paper":"https://pith.science/paper/RE3MSEHG"},"agent_actions":{"view_html":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA","download_json":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA.json","view_paper":"https://pith.science/paper/RE3MSEHG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0704.1454&json=true","fetch_graph":"https://pith.science/api/pith-number/RE3MSEHGVIVXUMOLKVEQ3LDCUA/graph.json","fetch_events":"https://pith.science/api/pith-number/RE3MSEHGVIVXUMOLKVEQ3LDCUA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA/action/storage_attestation","attest_author":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA/action/author_attestation","sign_citation":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA/action/citation_signature","submit_replication":"https://pith.science/pith/RE3MSEHGVIVXUMOLKVEQ3LDCUA/action/replication_record"}},"created_at":"2026-07-04T23:57:40.596012+00:00","updated_at":"2026-07-04T23:57:40.596012+00:00"}