{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:GD76NHTQSDR6NHXHJGORCGKUE5","short_pith_number":"pith:GD76NHTQ","canonical_record":{"source":{"id":"1806.08757","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-22T16:38:40Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"acbd3a9d4b24283f277aebc56f70c403a894b0500b91726ae456d923192a2d3e","abstract_canon_sha256":"d6db00382a2905ca61aad9fe427260e0c9362f5ad8aa657d9bd65d0ff0eccbf5"},"schema_version":"1.0"},"canonical_sha256":"30ffe69e7090e3e69ee7499d1119542745d875c2acec064b8845d1f65cb02999","source":{"kind":"arxiv","id":"1806.08757","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08757","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08757v2","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08757","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"GD76NHTQSDR6","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GD76NHTQSDR6NHXH","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GD76NHTQ","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:GD76NHTQSDR6NHXHJGORCGKUE5","target":"record","payload":{"canonical_record":{"source":{"id":"1806.08757","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-22T16:38:40Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"acbd3a9d4b24283f277aebc56f70c403a894b0500b91726ae456d923192a2d3e","abstract_canon_sha256":"d6db00382a2905ca61aad9fe427260e0c9362f5ad8aa657d9bd65d0ff0eccbf5"},"schema_version":"1.0"},"canonical_sha256":"30ffe69e7090e3e69ee7499d1119542745d875c2acec064b8845d1f65cb02999","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:25.084849Z","signature_b64":"YdOi78mlCVr3Ak4wjpXc3rFIVshTWFs5fJihtRXShiBD61DKL5wIyuqiD/o+knhI7JlfRDRcDQiAm8wSAvWsDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30ffe69e7090e3e69ee7499d1119542745d875c2acec064b8845d1f65cb02999","last_reissued_at":"2026-05-17T23:41:25.084224Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:25.084224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.08757","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":"2026-05-17T23:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FYHGywlV26EGFAM2izv82BBUAOCCev7sd1QKX90zs+LaKKkoyyGaIYdXYNxHA6I88IW3AusJyN1ySCuPe3tRAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T19:27:48.655748Z"},"content_sha256":"1ce39fd2f523cd28968b0a37c27cdb954b456ace604368169cdb9165eae8b4c2","schema_version":"1.0","event_id":"sha256:1ce39fd2f523cd28968b0a37c27cdb954b456ace604368169cdb9165eae8b4c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:GD76NHTQSDR6NHXHJGORCGKUE5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Transiting planet candidate from K2 with the longest period","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Collier Cameron, C. Lovis, D. Bayliss, F. Bouchy, H.A.C. Giles, H.P. Osborn, M.H. Kristiansen, O. Turner, P. Eggenberger, S. Blanco-Cuaresma, S. Udry","submitted_at":"2018-06-22T16:38:40Z","abstract_excerpt":"Context: We present the transit and follow-up of a single transit event from Campaign 14 of K2, EPIC248847494b, which has a duration of 54 hours and a 0.18% depth. Aims: Using photometric tools and conducting radial velocity follow-up, we vet and characterise this very strong candidate. Methods: Owing to the long, unknown period, standard follow-up methods needed to be adapted. The transit was fitted using Namaste, and the radial velocity slope was measured and compared to a grid of planet-like orbits with varying masses and periods. These used stellar parameters measured from spectra and the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08757","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":"2026-05-17T23:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tRzeI6h/C8K/XOZeB0j9EqrnxujY08GcZAMru7kZbRI8Nd96dQeNcs5SvPP963jAJjxasjbtf4ASS+EtFT4DDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T19:27:48.656141Z"},"content_sha256":"26c791e692ea5d6310f6bb7ded991fcfeda7cd06fe0c450b1828091b396f6862","schema_version":"1.0","event_id":"sha256:26c791e692ea5d6310f6bb7ded991fcfeda7cd06fe0c450b1828091b396f6862"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GD76NHTQSDR6NHXHJGORCGKUE5/bundle.json","state_url":"https://pith.science/pith/GD76NHTQSDR6NHXHJGORCGKUE5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GD76NHTQSDR6NHXHJGORCGKUE5/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":"2026-05-22T19:27:48Z","links":{"resolver":"https://pith.science/pith/GD76NHTQSDR6NHXHJGORCGKUE5","bundle":"https://pith.science/pith/GD76NHTQSDR6NHXHJGORCGKUE5/bundle.json","state":"https://pith.science/pith/GD76NHTQSDR6NHXHJGORCGKUE5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GD76NHTQSDR6NHXHJGORCGKUE5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GD76NHTQSDR6NHXHJGORCGKUE5","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":"d6db00382a2905ca61aad9fe427260e0c9362f5ad8aa657d9bd65d0ff0eccbf5","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-22T16:38:40Z","title_canon_sha256":"acbd3a9d4b24283f277aebc56f70c403a894b0500b91726ae456d923192a2d3e"},"schema_version":"1.0","source":{"id":"1806.08757","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.08757","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"1806.08757v2","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.08757","created_at":"2026-05-17T23:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"GD76NHTQSDR6","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GD76NHTQSDR6NHXH","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GD76NHTQ","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:26c791e692ea5d6310f6bb7ded991fcfeda7cd06fe0c450b1828091b396f6862","target":"graph","created_at":"2026-05-17T23:41:25Z","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":"Context: We present the transit and follow-up of a single transit event from Campaign 14 of K2, EPIC248847494b, which has a duration of 54 hours and a 0.18% depth. Aims: Using photometric tools and conducting radial velocity follow-up, we vet and characterise this very strong candidate. Methods: Owing to the long, unknown period, standard follow-up methods needed to be adapted. The transit was fitted using Namaste, and the radial velocity slope was measured and compared to a grid of planet-like orbits with varying masses and periods. These used stellar parameters measured from spectra and the ","authors_text":"A. Collier Cameron, C. Lovis, D. Bayliss, F. Bouchy, H.A.C. Giles, H.P. Osborn, M.H. Kristiansen, O. Turner, P. Eggenberger, S. Blanco-Cuaresma, S. Udry","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-22T16:38:40Z","title":"Transiting planet candidate from K2 with the longest period"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.08757","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":"sha256:1ce39fd2f523cd28968b0a37c27cdb954b456ace604368169cdb9165eae8b4c2","target":"record","created_at":"2026-05-17T23:41:25Z","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":"d6db00382a2905ca61aad9fe427260e0c9362f5ad8aa657d9bd65d0ff0eccbf5","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-06-22T16:38:40Z","title_canon_sha256":"acbd3a9d4b24283f277aebc56f70c403a894b0500b91726ae456d923192a2d3e"},"schema_version":"1.0","source":{"id":"1806.08757","kind":"arxiv","version":2}},"canonical_sha256":"30ffe69e7090e3e69ee7499d1119542745d875c2acec064b8845d1f65cb02999","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30ffe69e7090e3e69ee7499d1119542745d875c2acec064b8845d1f65cb02999","first_computed_at":"2026-05-17T23:41:25.084224Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:25.084224Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YdOi78mlCVr3Ak4wjpXc3rFIVshTWFs5fJihtRXShiBD61DKL5wIyuqiD/o+knhI7JlfRDRcDQiAm8wSAvWsDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:25.084849Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.08757","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1ce39fd2f523cd28968b0a37c27cdb954b456ace604368169cdb9165eae8b4c2","sha256:26c791e692ea5d6310f6bb7ded991fcfeda7cd06fe0c450b1828091b396f6862"],"state_sha256":"17898705d5434ce4432302978ee77c0b5ed460e0c2852f3d742225cd31c108c8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ncSOurq6/0lhkN65Td87S17mx9s5tqarD4+dATjB8gs4cOu8Kbyg42oLJ0Bb/u/3jCQSp+SGQj9Ot+EV9aLxCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T19:27:48.658223Z","bundle_sha256":"a114f5ae88a7f8672e85debb9d3c8b01e44425b141b9df0fe969cffe2a315df6"}}