{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HJ2VZB65BI6ZZ4U23LH7NRGLL6","short_pith_number":"pith:HJ2VZB65","canonical_record":{"source":{"id":"1409.5128","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-17T20:00:10Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"fdfa48982b5158e9fa0470b38f187adab95d99c228deea0ab894e11b6c419bc4","abstract_canon_sha256":"d3f9c31bebc338c55baf7b7d03ac2fb3e9e7118f3f9b5bf88fdc5b92ce925dee"},"schema_version":"1.0"},"canonical_sha256":"3a755c87dd0a3d9cf29adacff6c4cb5fb37d28adabe43deb081d494e5f023f7c","source":{"kind":"arxiv","id":"1409.5128","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.5128","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"arxiv_version","alias_value":"1409.5128v2","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.5128","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"pith_short_12","alias_value":"HJ2VZB65BI6Z","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HJ2VZB65BI6ZZ4U2","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HJ2VZB65","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HJ2VZB65BI6ZZ4U23LH7NRGLL6","target":"record","payload":{"canonical_record":{"source":{"id":"1409.5128","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-17T20:00:10Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"fdfa48982b5158e9fa0470b38f187adab95d99c228deea0ab894e11b6c419bc4","abstract_canon_sha256":"d3f9c31bebc338c55baf7b7d03ac2fb3e9e7118f3f9b5bf88fdc5b92ce925dee"},"schema_version":"1.0"},"canonical_sha256":"3a755c87dd0a3d9cf29adacff6c4cb5fb37d28adabe43deb081d494e5f023f7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:01.652476Z","signature_b64":"lyP/FamFKKdVD4zdrgqXlM9mFmcHiQgItz008LtDbgaZj2LUyaLtqjQX4XzyD8cVjCVV3Beo0IbGtdkU96WeCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a755c87dd0a3d9cf29adacff6c4cb5fb37d28adabe43deb081d494e5f023f7c","last_reissued_at":"2026-05-18T01:42:01.652114Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:01.652114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.5128","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:42:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+uMmrW/VeAoW94LKr/cVKoyhLiDQn99BSSP/mMXB+RMFyCx7eqrntH0kgv/38rkWBn91IbjNowWh0khdlokBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:42:39.912342Z"},"content_sha256":"c55f71ec63fe6125b2dd6c20321786a751ae7bc3de224a169662eda40d8c754b","schema_version":"1.0","event_id":"sha256:c55f71ec63fe6125b2dd6c20321786a751ae7bc3de224a169662eda40d8c754b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HJ2VZB65BI6ZZ4U23LH7NRGLL6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maximizing the ExoEarth Candidate Yield from a Future Direct Imaging Mission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Aki Roberge, Avi Mandell, Christopher C. Stark, Tyler D. Robinson","submitted_at":"2014-09-17T20:00:10Z","abstract_excerpt":"ExoEarth yield is a critical science metric for future exoplanet imaging missions. Here we estimate exoEarth candidate yield using single visit completeness for a variety of mission design and astrophysical parameters. We review the methods used in previous yield calculations and show that the method choice can significantly impact yield estimates as well as how the yield responds to mission parameters. We introduce a method, called Altruistic Yield Optimization, that optimizes the target list and exposure times to maximize mission yield, adapts maximally to changes in mission parameters, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.5128","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":""},"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":"2026-05-18T01:42:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oz3+7Ua0D6biwDGWvG7Z/mOjjsz4sHLrw3Xmf9xcYzyvvIfiq+bpmyLmHSpYZsgf7S2ohIL4j9qw0yNRoHyuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T09:42:39.912956Z"},"content_sha256":"f880b0a9c6a4ac970645d37c4ce11298714aa0a72305b4c6b49e3716f2463c14","schema_version":"1.0","event_id":"sha256:f880b0a9c6a4ac970645d37c4ce11298714aa0a72305b4c6b49e3716f2463c14"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/bundle.json","state_url":"https://pith.science/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/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":"2026-05-27T09:42:39Z","links":{"resolver":"https://pith.science/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6","bundle":"https://pith.science/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/bundle.json","state":"https://pith.science/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HJ2VZB65BI6ZZ4U23LH7NRGLL6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HJ2VZB65BI6ZZ4U23LH7NRGLL6","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":"d3f9c31bebc338c55baf7b7d03ac2fb3e9e7118f3f9b5bf88fdc5b92ce925dee","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-17T20:00:10Z","title_canon_sha256":"fdfa48982b5158e9fa0470b38f187adab95d99c228deea0ab894e11b6c419bc4"},"schema_version":"1.0","source":{"id":"1409.5128","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.5128","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"arxiv_version","alias_value":"1409.5128v2","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.5128","created_at":"2026-05-18T01:42:01Z"},{"alias_kind":"pith_short_12","alias_value":"HJ2VZB65BI6Z","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HJ2VZB65BI6ZZ4U2","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HJ2VZB65","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:f880b0a9c6a4ac970645d37c4ce11298714aa0a72305b4c6b49e3716f2463c14","target":"graph","created_at":"2026-05-18T01:42:01Z","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":"ExoEarth yield is a critical science metric for future exoplanet imaging missions. Here we estimate exoEarth candidate yield using single visit completeness for a variety of mission design and astrophysical parameters. We review the methods used in previous yield calculations and show that the method choice can significantly impact yield estimates as well as how the yield responds to mission parameters. We introduce a method, called Altruistic Yield Optimization, that optimizes the target list and exposure times to maximize mission yield, adapts maximally to changes in mission parameters, and ","authors_text":"Aki Roberge, Avi Mandell, Christopher C. Stark, Tyler D. Robinson","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-17T20:00:10Z","title":"Maximizing the ExoEarth Candidate Yield from a Future Direct Imaging Mission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.5128","kind":"arxiv","version":2},"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:c55f71ec63fe6125b2dd6c20321786a751ae7bc3de224a169662eda40d8c754b","target":"record","created_at":"2026-05-18T01:42:01Z","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":"d3f9c31bebc338c55baf7b7d03ac2fb3e9e7118f3f9b5bf88fdc5b92ce925dee","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-09-17T20:00:10Z","title_canon_sha256":"fdfa48982b5158e9fa0470b38f187adab95d99c228deea0ab894e11b6c419bc4"},"schema_version":"1.0","source":{"id":"1409.5128","kind":"arxiv","version":2}},"canonical_sha256":"3a755c87dd0a3d9cf29adacff6c4cb5fb37d28adabe43deb081d494e5f023f7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a755c87dd0a3d9cf29adacff6c4cb5fb37d28adabe43deb081d494e5f023f7c","first_computed_at":"2026-05-18T01:42:01.652114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:01.652114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lyP/FamFKKdVD4zdrgqXlM9mFmcHiQgItz008LtDbgaZj2LUyaLtqjQX4XzyD8cVjCVV3Beo0IbGtdkU96WeCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:01.652476Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.5128","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c55f71ec63fe6125b2dd6c20321786a751ae7bc3de224a169662eda40d8c754b","sha256:f880b0a9c6a4ac970645d37c4ce11298714aa0a72305b4c6b49e3716f2463c14"],"state_sha256":"1e047f6c389421bb65379bbd385c635a69ac0f23adf848a75b874b8983bc9e89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i50UKhCJjh7y+bFIa9otbuVaCcLbQ4AajUD+GJT+YUZF7+DwyYYFRlop410X0SoClUMVMJUSznypK57fMvrECA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T09:42:39.916678Z","bundle_sha256":"5244751fe6ddfbc1a1a1db373c14fcb90a53de918b206f9436c171a37657a1ec"}}