{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LQUMKE2DKGJBUKR34XQHXFIIXN","short_pith_number":"pith:LQUMKE2D","canonical_record":{"source":{"id":"2006.13428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-24T02:19:21Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"58fc7983336d4685df88cc345ccaccc8d082c6434e23c8a08730f3e83560d739","abstract_canon_sha256":"286906f025b9e5c33618e0eb7917b6e2b9cd041a538ae3641bbe175763b40c21"},"schema_version":"1.0"},"canonical_sha256":"5c28c5134351921a2a3be5e07b9508bb6e33b21bbf70e255974511a430c885c5","source":{"kind":"arxiv","id":"2006.13428","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.13428","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"arxiv_version","alias_value":"2006.13428v1","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.13428","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_12","alias_value":"LQUMKE2DKGJB","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_16","alias_value":"LQUMKE2DKGJBUKR3","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_8","alias_value":"LQUMKE2D","created_at":"2026-07-05T01:13:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LQUMKE2DKGJBUKR34XQHXFIIXN","target":"record","payload":{"canonical_record":{"source":{"id":"2006.13428","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-24T02:19:21Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"58fc7983336d4685df88cc345ccaccc8d082c6434e23c8a08730f3e83560d739","abstract_canon_sha256":"286906f025b9e5c33618e0eb7917b6e2b9cd041a538ae3641bbe175763b40c21"},"schema_version":"1.0"},"canonical_sha256":"5c28c5134351921a2a3be5e07b9508bb6e33b21bbf70e255974511a430c885c5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:13:15.872461Z","signature_b64":"1FF64M0ihuB3Gm8wgqdq77hjuYBCo9Bp8VZ23QV2dgv6wmHxFVzF1w3VUi8DJj8smpgYZw4tUoq5d5XudD+KBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5c28c5134351921a2a3be5e07b9508bb6e33b21bbf70e255974511a430c885c5","last_reissued_at":"2026-07-05T01:13:15.872051Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:13:15.872051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.13428","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":"2026-07-05T01:13:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jw2O57yG1KKTKLsxPnMv6qP9Rbgp+B7l/pjxZvkFV6n2/tN+57PcR21fPEUWTuwtii4jZ4JaAt2TwA7klubwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T07:02:22.953226Z"},"content_sha256":"e718c8f8f9e13ab8c7664d65b275d8911bc5f7faa64cdd23cff882bf74252730","schema_version":"1.0","event_id":"sha256:e718c8f8f9e13ab8c7664d65b275d8911bc5f7faa64cdd23cff882bf74252730"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LQUMKE2DKGJBUKR34XQHXFIIXN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.IM","authors_text":"Albert Rosich, Alex Wise, Andrew Bechter, Andrew Howard, Andrew Mayo, Angelle Tanner, Bahaa Hamze, Benjamin Pope, Bill Purcell, Bryson Cale, Casey Lisse, Catherine Grier, Chas Beichman, Courtney Dressing, Cullen Blake, David Ciardi, Debra Fischer, Dimitri Mawet, Eliza Kempton, Emily Martin, Enrique Herrero Casas, Eric Bechter, Fabienne Bastien, Gautam Vasisht, Heather Cegla, Ignasi Ribas, Jason Eastman, Jason Wright, Ji Wang, Jonathan Crass, Jonathan Gagn\\'e, Justin Crepp, Katherine de Kleer, Kerry Vahala, Natasha Latouf, Patrick Newman, Paul Lightsey, Peter Gao, Peter Plavchan, Peter Williams, Richard Hall, Samantha Thompson, Sam Halverson, Sam Quinn, Sarbani Basu, Scott Diddams, Scott Gaudi, Scott Papp, Sharon Wang, Sophia Sanchez-Maes, Stephanie Leifer, Thomas Beatty, Vincent Bourrier, William Matzko, Xavier Dumusque","submitted_at":"2020-06-24T02:19:21Z","abstract_excerpt":"EarthFinder is a NASA Astrophysics Probe mission concept selected for study as input to the 2020 Astrophysics National Academies Decadal Survey. The EarthFinder concept is based on a dramatic shift in our understanding of how PRV measurements should be made. We propose a new paradigm which brings the high precision, high cadence domain of transit photometry as demonstrated by Kepler and TESS to the challenges of PRV measurements at the cm/s level. This new paradigm takes advantage of: 1) broad wavelength coverage from the UV to NIR which is only possible from space to minimize the effects of s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.13428","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/2006.13428/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":"2026-07-05T01:13:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1B4eTJR5HTqsbbWvPlgwjGlaMBlCUnqogeLmg7MIhgxJtoh/Cj2DHVxLK+FJBFPGdMgQnIhQaObhFftJrrrMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T07:02:22.953643Z"},"content_sha256":"4635a61e3ecff3dc29a232bd03e7dddabb16453ec09f57742b98b0f2a7a637f4","schema_version":"1.0","event_id":"sha256:4635a61e3ecff3dc29a232bd03e7dddabb16453ec09f57742b98b0f2a7a637f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/bundle.json","state_url":"https://pith.science/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/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":"2026-07-06T07:02:22Z","links":{"resolver":"https://pith.science/pith/LQUMKE2DKGJBUKR34XQHXFIIXN","bundle":"https://pith.science/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/bundle.json","state":"https://pith.science/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LQUMKE2DKGJBUKR34XQHXFIIXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LQUMKE2DKGJBUKR34XQHXFIIXN","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":"286906f025b9e5c33618e0eb7917b6e2b9cd041a538ae3641bbe175763b40c21","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-24T02:19:21Z","title_canon_sha256":"58fc7983336d4685df88cc345ccaccc8d082c6434e23c8a08730f3e83560d739"},"schema_version":"1.0","source":{"id":"2006.13428","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.13428","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"arxiv_version","alias_value":"2006.13428v1","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.13428","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_12","alias_value":"LQUMKE2DKGJB","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_16","alias_value":"LQUMKE2DKGJBUKR3","created_at":"2026-07-05T01:13:15Z"},{"alias_kind":"pith_short_8","alias_value":"LQUMKE2D","created_at":"2026-07-05T01:13:15Z"}],"graph_snapshots":[{"event_id":"sha256:4635a61e3ecff3dc29a232bd03e7dddabb16453ec09f57742b98b0f2a7a637f4","target":"graph","created_at":"2026-07-05T01:13:15Z","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/2006.13428/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"EarthFinder is a NASA Astrophysics Probe mission concept selected for study as input to the 2020 Astrophysics National Academies Decadal Survey. The EarthFinder concept is based on a dramatic shift in our understanding of how PRV measurements should be made. We propose a new paradigm which brings the high precision, high cadence domain of transit photometry as demonstrated by Kepler and TESS to the challenges of PRV measurements at the cm/s level. This new paradigm takes advantage of: 1) broad wavelength coverage from the UV to NIR which is only possible from space to minimize the effects of s","authors_text":"Albert Rosich, Alex Wise, Andrew Bechter, Andrew Howard, Andrew Mayo, Angelle Tanner, Bahaa Hamze, Benjamin Pope, Bill Purcell, Bryson Cale, Casey Lisse, Catherine Grier, Chas Beichman, Courtney Dressing, Cullen Blake, David Ciardi, Debra Fischer, Dimitri Mawet, Eliza Kempton, Emily Martin, Enrique Herrero Casas, Eric Bechter, Fabienne Bastien, Gautam Vasisht, Heather Cegla, Ignasi Ribas, Jason Eastman, Jason Wright, Ji Wang, Jonathan Crass, Jonathan Gagn\\'e, Justin Crepp, Katherine de Kleer, Kerry Vahala, Natasha Latouf, Patrick Newman, Paul Lightsey, Peter Gao, Peter Plavchan, Peter Williams, Richard Hall, Samantha Thompson, Sam Halverson, Sam Quinn, Sarbani Basu, Scott Diddams, Scott Gaudi, Scott Papp, Sharon Wang, Sophia Sanchez-Maes, Stephanie Leifer, Thomas Beatty, Vincent Bourrier, William Matzko, Xavier Dumusque","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-24T02:19:21Z","title":"EarthFinder Probe Mission Concept Study: Characterizing nearby stellar exoplanet systems with Earth-mass analogs for future direct imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.13428","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:e718c8f8f9e13ab8c7664d65b275d8911bc5f7faa64cdd23cff882bf74252730","target":"record","created_at":"2026-07-05T01:13:15Z","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":"286906f025b9e5c33618e0eb7917b6e2b9cd041a538ae3641bbe175763b40c21","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-06-24T02:19:21Z","title_canon_sha256":"58fc7983336d4685df88cc345ccaccc8d082c6434e23c8a08730f3e83560d739"},"schema_version":"1.0","source":{"id":"2006.13428","kind":"arxiv","version":1}},"canonical_sha256":"5c28c5134351921a2a3be5e07b9508bb6e33b21bbf70e255974511a430c885c5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5c28c5134351921a2a3be5e07b9508bb6e33b21bbf70e255974511a430c885c5","first_computed_at":"2026-07-05T01:13:15.872051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:13:15.872051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1FF64M0ihuB3Gm8wgqdq77hjuYBCo9Bp8VZ23QV2dgv6wmHxFVzF1w3VUi8DJj8smpgYZw4tUoq5d5XudD+KBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:13:15.872461Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.13428","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e718c8f8f9e13ab8c7664d65b275d8911bc5f7faa64cdd23cff882bf74252730","sha256:4635a61e3ecff3dc29a232bd03e7dddabb16453ec09f57742b98b0f2a7a637f4"],"state_sha256":"75646c801e52d00441b172e0bc9f09b5abbfb45fe5582c6dc156e19e4390586e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AtC/u1abw/QonNKrqERel17zgs6QUpA08k+DEqQ0kRlZdVvGCOPenAdtF7+cb89xHiqRD70jZrhDkjrinIriCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T07:02:22.955675Z","bundle_sha256":"0cff48d0e449a147747658a1d2f933482d6daa376df32dee55df8d0f4615eb05"}}