{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:XEFX3QO6XU3THLMYH44BHEJ4NO","short_pith_number":"pith:XEFX3QO6","canonical_record":{"source":{"id":"1707.07978","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-07-25T13:19:02Z","cross_cats_sorted":[],"title_canon_sha256":"cc20de44bba5e4768101de5d7f525e4d82e816861454d302aa004dcfbde2347a","abstract_canon_sha256":"6f96f47de6f29aebd96f63f1d515ce550b8bdc76399e14e4ac557044dc549ad4"},"schema_version":"1.0"},"canonical_sha256":"b90b7dc1debd3733ad983f3813913c6b8d7ef0ec02d6d55ae491da896a6e284e","source":{"kind":"arxiv","id":"1707.07978","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07978","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07978v2","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07978","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"pith_short_12","alias_value":"XEFX3QO6XU3T","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"XEFX3QO6XU3THLMY","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"XEFX3QO6","created_at":"2026-05-18T12:31:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:XEFX3QO6XU3THLMYH44BHEJ4NO","target":"record","payload":{"canonical_record":{"source":{"id":"1707.07978","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-07-25T13:19:02Z","cross_cats_sorted":[],"title_canon_sha256":"cc20de44bba5e4768101de5d7f525e4d82e816861454d302aa004dcfbde2347a","abstract_canon_sha256":"6f96f47de6f29aebd96f63f1d515ce550b8bdc76399e14e4ac557044dc549ad4"},"schema_version":"1.0"},"canonical_sha256":"b90b7dc1debd3733ad983f3813913c6b8d7ef0ec02d6d55ae491da896a6e284e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:02.894770Z","signature_b64":"zNFDCB3ERAbuwr7uBwNymqA9bpjPZtAkKMkfeOHh4vhokpsFAsXdd/8XZNYQfZlCXcDZStOgUrRCYkf2v46LDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b90b7dc1debd3733ad983f3813913c6b8d7ef0ec02d6d55ae491da896a6e284e","last_reissued_at":"2026-05-18T00:36:02.894329Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:02.894329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.07978","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":"2026-05-18T00:36:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d8YpzWxJHnJLc/a1NZoFwcy22+7ee58EL0S/05pNYTG7Joqfew3s6ir9VaGQ3zCE5u0P4b2o2aetD1UVK9xeDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T00:43:45.791492Z"},"content_sha256":"a54e13a8239af8faefd242ac66faed87e6d667ac0b9a99ffb995730ce8d8e15e","schema_version":"1.0","event_id":"sha256:a54e13a8239af8faefd242ac66faed87e6d667ac0b9a99ffb995730ce8d8e15e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:XEFX3QO6XU3THLMYH44BHEJ4NO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Centroid vetting of transiting planet candidates from the Next Generation Transit Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Alexander P. Chaushev, Alexis M. S. Smith, Andrew Grange, Andrew P. G. Thompson, Christopher A. Watson, Daniel Bayliss, David J. Armstrong, Didier Queloz, Don Pollacco, Edward Gillen, Francois Bouchy, Heike Rauer, James Jackman, James McCormac, James S. Jenkins, Katja Poppenhaeger, Liam Raynard, Matthew Burleigh, Maximilian N. G\\\"unther, Maximiliano Moyano, Michael R. Goad, Peter J. Wheatley, Philipp Eigm\\\"uller, Richard G. West, Sarah L. Casewell, Simon. R. Walker, St\\'ephane Udry, Tom Louden","submitted_at":"2017-07-25T13:19:02Z","abstract_excerpt":"The Next Generation Transit Survey (NGTS), operating in Paranal since 2016, is a wide-field survey to detect Neptunes and super-Earths transiting bright stars, which are suitable for precise radial velocity follow-up and characterisation. Thereby, its sub-mmag photometric precision and ability to identify false positives are crucial. Particularly, variable background objects blended in the photometric aperture frequently mimic Neptune-sized transits and are costly in follow-up time. These objects can best be identified with the centroiding technique: if the photometric flux is lost off-centre "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07978","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":"2026-05-18T00:36:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NxWpusJFjIhV+WKvjBdKyWSGMq3h3kSFxBkEtglCADEjegAHyVUp4NIGRAXsc6iZ1gZBKe69t0hmeorYt6G4DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T00:43:45.791977Z"},"content_sha256":"e593c89af94427b75181360a2f261c27397fa42c014455a9419514efb1a510e8","schema_version":"1.0","event_id":"sha256:e593c89af94427b75181360a2f261c27397fa42c014455a9419514efb1a510e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/bundle.json","state_url":"https://pith.science/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/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":"2026-08-15T00:43:45Z","links":{"resolver":"https://pith.science/pith/XEFX3QO6XU3THLMYH44BHEJ4NO","bundle":"https://pith.science/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/bundle.json","state":"https://pith.science/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XEFX3QO6XU3THLMYH44BHEJ4NO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XEFX3QO6XU3THLMYH44BHEJ4NO","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":"6f96f47de6f29aebd96f63f1d515ce550b8bdc76399e14e4ac557044dc549ad4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-07-25T13:19:02Z","title_canon_sha256":"cc20de44bba5e4768101de5d7f525e4d82e816861454d302aa004dcfbde2347a"},"schema_version":"1.0","source":{"id":"1707.07978","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.07978","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"arxiv_version","alias_value":"1707.07978v2","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07978","created_at":"2026-05-18T00:36:02Z"},{"alias_kind":"pith_short_12","alias_value":"XEFX3QO6XU3T","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"XEFX3QO6XU3THLMY","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"XEFX3QO6","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:e593c89af94427b75181360a2f261c27397fa42c014455a9419514efb1a510e8","target":"graph","created_at":"2026-05-18T00:36:02Z","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":"The Next Generation Transit Survey (NGTS), operating in Paranal since 2016, is a wide-field survey to detect Neptunes and super-Earths transiting bright stars, which are suitable for precise radial velocity follow-up and characterisation. Thereby, its sub-mmag photometric precision and ability to identify false positives are crucial. Particularly, variable background objects blended in the photometric aperture frequently mimic Neptune-sized transits and are costly in follow-up time. These objects can best be identified with the centroiding technique: if the photometric flux is lost off-centre ","authors_text":"Alexander P. Chaushev, Alexis M. S. Smith, Andrew Grange, Andrew P. G. Thompson, Christopher A. Watson, Daniel Bayliss, David J. Armstrong, Didier Queloz, Don Pollacco, Edward Gillen, Francois Bouchy, Heike Rauer, James Jackman, James McCormac, James S. Jenkins, Katja Poppenhaeger, Liam Raynard, Matthew Burleigh, Maximilian N. G\\\"unther, Maximiliano Moyano, Michael R. Goad, Peter J. Wheatley, Philipp Eigm\\\"uller, Richard G. West, Sarah L. Casewell, Simon. R. Walker, St\\'ephane Udry, Tom Louden","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-07-25T13:19:02Z","title":"Centroid vetting of transiting planet candidates from the Next Generation Transit Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07978","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:a54e13a8239af8faefd242ac66faed87e6d667ac0b9a99ffb995730ce8d8e15e","target":"record","created_at":"2026-05-18T00:36:02Z","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":"6f96f47de6f29aebd96f63f1d515ce550b8bdc76399e14e4ac557044dc549ad4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2017-07-25T13:19:02Z","title_canon_sha256":"cc20de44bba5e4768101de5d7f525e4d82e816861454d302aa004dcfbde2347a"},"schema_version":"1.0","source":{"id":"1707.07978","kind":"arxiv","version":2}},"canonical_sha256":"b90b7dc1debd3733ad983f3813913c6b8d7ef0ec02d6d55ae491da896a6e284e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b90b7dc1debd3733ad983f3813913c6b8d7ef0ec02d6d55ae491da896a6e284e","first_computed_at":"2026-05-18T00:36:02.894329Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:02.894329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zNFDCB3ERAbuwr7uBwNymqA9bpjPZtAkKMkfeOHh4vhokpsFAsXdd/8XZNYQfZlCXcDZStOgUrRCYkf2v46LDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:02.894770Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.07978","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a54e13a8239af8faefd242ac66faed87e6d667ac0b9a99ffb995730ce8d8e15e","sha256:e593c89af94427b75181360a2f261c27397fa42c014455a9419514efb1a510e8"],"state_sha256":"c4fc82f6fec695ecd5c6f40d4f2fd5520f46fb436032c20db98cd01b6a7e7892"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6MQ+vntk0WzPHzDcPFClTX60jzgnh9AOKeDpQnHNhUzfSl2AWe7YRvhViSfIR810WhcpZHxK7B836TKnLJueBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T00:43:45.796147Z","bundle_sha256":"c158267bfb4e4d16fd99d24a5453b7aa95da122b4ad20016bf64aa66430f1b5e"}}