{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:KQQFRPLWQCABOGQ4KXR2NGSFOJ","short_pith_number":"pith:KQQFRPLW","canonical_record":{"source":{"id":"1806.08368","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T18:00:48Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4aa2c0594efdc4aafd78a9e8775baa89986ff034f9bd1247675bf6819a63e9e9","abstract_canon_sha256":"7e507c2a93a9a63c2d2dfd7edae0ba6c704edccf45133f4fd00dad39ceade83f"},"schema_version":"1.0"},"canonical_sha256":"542058bd768080171a1c55e3a69a4572694673931ca49cdcc4bbc27f53ec3e6e","source":{"kind":"arxiv","id":"1806.08368","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08368","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08368v3","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08368","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"KQQFRPLWQCAB","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KQQFRPLWQCABOGQ4","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KQQFRPLW","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:KQQFRPLWQCABOGQ4KXR2NGSFOJ","target":"record","payload":{"canonical_record":{"source":{"id":"1806.08368","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T18:00:48Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"4aa2c0594efdc4aafd78a9e8775baa89986ff034f9bd1247675bf6819a63e9e9","abstract_canon_sha256":"7e507c2a93a9a63c2d2dfd7edae0ba6c704edccf45133f4fd00dad39ceade83f"},"schema_version":"1.0"},"canonical_sha256":"542058bd768080171a1c55e3a69a4572694673931ca49cdcc4bbc27f53ec3e6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:54.851506Z","signature_b64":"OgJ5c9uuitTPOORaUHxrlKq78GPjcatJA7BbvENI7XmDwN4A8QDhgmtfznuQd+bocE3YdkNlKlcyVWMBPxaRAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"542058bd768080171a1c55e3a69a4572694673931ca49cdcc4bbc27f53ec3e6e","last_reissued_at":"2026-05-18T00:00:54.850836Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:54.850836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.08368","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XBmiMk4U32k+DTYeWGiD2vsaPqYKD1LGfhcMc0qeqQC1y2cErvkyzA6UWcqdhYRUsCfnVKHNJCvI7+eAdLinDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:44:31.435197Z"},"content_sha256":"31c52a4f2f2fb1388f977e06cbc9986b101fc88958928770293b166178659d38","schema_version":"1.0","event_id":"sha256:31c52a4f2f2fb1388f977e06cbc9986b101fc88958928770293b166178659d38"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:KQQFRPLWQCABOGQ4KXR2NGSFOJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Allyson Bieryla, Andrew Mayo, Andrew Vanderburg, Courtney D. Dressing, David R. Ciardi, David W. Latham, Fred C. Adams, Gilbert A. Esquerdo, Hans Martin Schwengeler, Ivan Terentev, Jason D. Eastman, Joseph E. Rodriguez, Joshua E. Schlieder, Juliette C. Becker, Keivan G. Stassun, Mark Omohundro, Martti H. Kristiansen, Michael L. Calkins, Perry Berlind, Sam Hadden, Samuel N. Quinn, Saul Rappaport, Tali Khain","submitted_at":"2018-06-21T18:00:48Z","abstract_excerpt":"We report the discovery of a compact multi-planet system orbiting the relatively nearby (78pc) and bright ($K=8.9$) K-star, K2-266 (EPIC248435473). We identify up to six possible planets orbiting K2-266 with estimated periods of P$_b$ = 0.66, P$_{.02}$ = 6.1, P$_c$ = 7.8, P$_d$ = 14.7, P$_e$ = 19.5, and P$_{.06}$ = 56.7 days and radii of R$_P$ = 3.3 R$_{\\oplus}$, 0.646 R$_{\\oplus}$, 0.705 R$_{\\oplus}$, 2.93 R$_{\\oplus}$, 2.73 R$_{\\oplus}$, and 0.90 R$_{\\oplus}$, respectively. We are able to confirm the planetary nature of two of these planets (d & e) from analyzing their transit timing variati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08368","kind":"arxiv","version":3},"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":"2026-05-18T00:00:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iNm7g9Ai5+RiLbAv9mKdVBlQQTxomtpd+O4HZ5SoNc9tTQkXjkmvjWdvPzngJuAMc2g65LzhAvZi5onwn5xYDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:44:31.435638Z"},"content_sha256":"7b90dac7775cf8004342fff83f78a5e021e889ff605f2944fa997b2d2d0587fa","schema_version":"1.0","event_id":"sha256:7b90dac7775cf8004342fff83f78a5e021e889ff605f2944fa997b2d2d0587fa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/bundle.json","state_url":"https://pith.science/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/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":"2026-05-27T20:44:31Z","links":{"resolver":"https://pith.science/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ","bundle":"https://pith.science/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/bundle.json","state":"https://pith.science/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KQQFRPLWQCABOGQ4KXR2NGSFOJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:KQQFRPLWQCABOGQ4KXR2NGSFOJ","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":"7e507c2a93a9a63c2d2dfd7edae0ba6c704edccf45133f4fd00dad39ceade83f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T18:00:48Z","title_canon_sha256":"4aa2c0594efdc4aafd78a9e8775baa89986ff034f9bd1247675bf6819a63e9e9"},"schema_version":"1.0","source":{"id":"1806.08368","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08368","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08368v3","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08368","created_at":"2026-05-18T00:00:54Z"},{"alias_kind":"pith_short_12","alias_value":"KQQFRPLWQCAB","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KQQFRPLWQCABOGQ4","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KQQFRPLW","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:7b90dac7775cf8004342fff83f78a5e021e889ff605f2944fa997b2d2d0587fa","target":"graph","created_at":"2026-05-18T00:00:54Z","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":"We report the discovery of a compact multi-planet system orbiting the relatively nearby (78pc) and bright ($K=8.9$) K-star, K2-266 (EPIC248435473). We identify up to six possible planets orbiting K2-266 with estimated periods of P$_b$ = 0.66, P$_{.02}$ = 6.1, P$_c$ = 7.8, P$_d$ = 14.7, P$_e$ = 19.5, and P$_{.06}$ = 56.7 days and radii of R$_P$ = 3.3 R$_{\\oplus}$, 0.646 R$_{\\oplus}$, 0.705 R$_{\\oplus}$, 2.93 R$_{\\oplus}$, 2.73 R$_{\\oplus}$, and 0.90 R$_{\\oplus}$, respectively. We are able to confirm the planetary nature of two of these planets (d & e) from analyzing their transit timing variati","authors_text":"Allyson Bieryla, Andrew Mayo, Andrew Vanderburg, Courtney D. Dressing, David R. Ciardi, David W. Latham, Fred C. Adams, Gilbert A. Esquerdo, Hans Martin Schwengeler, Ivan Terentev, Jason D. Eastman, Joseph E. Rodriguez, Joshua E. Schlieder, Juliette C. Becker, Keivan G. Stassun, Mark Omohundro, Martti H. Kristiansen, Michael L. Calkins, Perry Berlind, Sam Hadden, Samuel N. Quinn, Saul Rappaport, Tali Khain","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T18:00:48Z","title":"A Compact Multi-Planet System With A Significantly Misaligned Ultra Short Period Planet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08368","kind":"arxiv","version":3},"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":"sha256:31c52a4f2f2fb1388f977e06cbc9986b101fc88958928770293b166178659d38","target":"record","created_at":"2026-05-18T00:00:54Z","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":"7e507c2a93a9a63c2d2dfd7edae0ba6c704edccf45133f4fd00dad39ceade83f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-21T18:00:48Z","title_canon_sha256":"4aa2c0594efdc4aafd78a9e8775baa89986ff034f9bd1247675bf6819a63e9e9"},"schema_version":"1.0","source":{"id":"1806.08368","kind":"arxiv","version":3}},"canonical_sha256":"542058bd768080171a1c55e3a69a4572694673931ca49cdcc4bbc27f53ec3e6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"542058bd768080171a1c55e3a69a4572694673931ca49cdcc4bbc27f53ec3e6e","first_computed_at":"2026-05-18T00:00:54.850836Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:54.850836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OgJ5c9uuitTPOORaUHxrlKq78GPjcatJA7BbvENI7XmDwN4A8QDhgmtfznuQd+bocE3YdkNlKlcyVWMBPxaRAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:54.851506Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.08368","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:31c52a4f2f2fb1388f977e06cbc9986b101fc88958928770293b166178659d38","sha256:7b90dac7775cf8004342fff83f78a5e021e889ff605f2944fa997b2d2d0587fa"],"state_sha256":"7715998d00d5d8d5d43b16d1141a9bddc0c266b1af48e09891c947101a6ab8c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AUQ5ZsPywBm0GHsC2+gDh002B3ILiNzQYbX6Ft0pmj0VcKGZ5Nw6f8HazFScRt3hE6dlkdrorCJNQ0AJkf6gBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:44:31.437716Z","bundle_sha256":"3aa3526efe9eb0e1bccfc075b5e20bd55bf19c85c0af1841c1f8ad17e3b72dfe"}}