{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:O6CIPCKSVXPR63Z65RE4AP7UAV","short_pith_number":"pith:O6CIPCKS","canonical_record":{"source":{"id":"2104.07906","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-16T06:10:30Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"be7cacab5dbfeae06bcb1356e8a1fe64a3b1b87bc5ec8420893816c2b5819dcd","abstract_canon_sha256":"c25955dd78a50122182d2040242f9f7c22c5c9441b7c5ddbd75f791519b12fdb"},"schema_version":"1.0"},"canonical_sha256":"7784878952addf1f6f3eec49c03ff4056eeac50a79e9a23323429ff512a52982","source":{"kind":"arxiv","id":"2104.07906","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.07906","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"2104.07906v1","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.07906","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"O6CIPCKSVXPR","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_16","alias_value":"O6CIPCKSVXPR63Z6","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_8","alias_value":"O6CIPCKS","created_at":"2026-07-05T03:06:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:O6CIPCKSVXPR63Z65RE4AP7UAV","target":"record","payload":{"canonical_record":{"source":{"id":"2104.07906","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-16T06:10:30Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"be7cacab5dbfeae06bcb1356e8a1fe64a3b1b87bc5ec8420893816c2b5819dcd","abstract_canon_sha256":"c25955dd78a50122182d2040242f9f7c22c5c9441b7c5ddbd75f791519b12fdb"},"schema_version":"1.0"},"canonical_sha256":"7784878952addf1f6f3eec49c03ff4056eeac50a79e9a23323429ff512a52982","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:06:23.792834Z","signature_b64":"hfpz/ReP1cXBVXjvPJsKii1lOpzkJ+z5op+x0jYfh8Ua5uTrFZwQWQps3paiT0aA/k4Dragb+9MRRxRdztThCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7784878952addf1f6f3eec49c03ff4056eeac50a79e9a23323429ff512a52982","last_reissued_at":"2026-07-05T03:06:23.792344Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:06:23.792344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.07906","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":"2026-07-05T03:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0PfLrsoHRntFwZnUUwzwlhGUlTzjLviKCUWXotTeDU46qF53MUpxo7KPlD4xcaCi5DE8O1BhGHLFqzjUHkMAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:07:22.616218Z"},"content_sha256":"141584ad4dac8ea5639b3be470c83d547082aab8969a76f7e29ae19d201b3e41","schema_version":"1.0","event_id":"sha256:141584ad4dac8ea5639b3be470c83d547082aab8969a76f7e29ae19d201b3e41"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:O6CIPCKSVXPR63Z65RE4AP7UAV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Shortest Microlensing Event with a Bound Planet: KMT-2016-BLG-2605","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.EP","authors_text":"Andrew Gould, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Dong-Jin Kim, Dong-Joo Lee, Hyoun-Woo Kim, In-Gu Shin, Jennifer C. Yee, Kyu-Ha Hwang, Michael D.Albrow, Richard W. Pogge, Sang-Mok Cha, Seung-Lee Kim, Sun-Ju Chung, Weicheng Zang, Yongseok Lee, Yoon-Hyun Ryu, Yossi Shvartzvald, Youn Kil Jung","submitted_at":"2021-04-16T06:10:30Z","abstract_excerpt":"KMT-2016-BLG-2605, with planet-host mass ratio $q=0.012\\pm 0.001$, has the shortest Einstein timescale, $t_\\e = 3.41\\pm 0.13\\,$days, of any planetary microlensing event to date. This prompts us to examine the full sample of 7 short ($t_\\e<7\\,$day) planetary events with good $q$ measurements. We find that six have clustered Einstein radii $\\theta_\\e = 115\\pm 20\\,\\muas$ and lens-source relative proper motions $\\mu_\\rel\\simeq 9.5\\pm 2.5\\,\\masyr$. For the seventh, these two quantities could not be measured. These distributions are consistent with a Galactic-bulge population of very low-mass (VLM) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.07906","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/2104.07906/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":"2026-07-05T03:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mOGX2coSxWt8Rqglo9ddlW13ZrzoriX8SK8CwBN3pAKTV0l5lvg5s+0s3DBgwIVLWVEdxPCjoIUEt3/Zs6gJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T07:07:22.616749Z"},"content_sha256":"035722852b25252c6d4adc426d5d7d1fdc72c04b135c1498a3d80ad2a16f54c8","schema_version":"1.0","event_id":"sha256:035722852b25252c6d4adc426d5d7d1fdc72c04b135c1498a3d80ad2a16f54c8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/bundle.json","state_url":"https://pith.science/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/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":"2026-08-07T07:07:22Z","links":{"resolver":"https://pith.science/pith/O6CIPCKSVXPR63Z65RE4AP7UAV","bundle":"https://pith.science/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/bundle.json","state":"https://pith.science/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O6CIPCKSVXPR63Z65RE4AP7UAV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:O6CIPCKSVXPR63Z65RE4AP7UAV","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":"c25955dd78a50122182d2040242f9f7c22c5c9441b7c5ddbd75f791519b12fdb","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-16T06:10:30Z","title_canon_sha256":"be7cacab5dbfeae06bcb1356e8a1fe64a3b1b87bc5ec8420893816c2b5819dcd"},"schema_version":"1.0","source":{"id":"2104.07906","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.07906","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"2104.07906v1","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.07906","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"O6CIPCKSVXPR","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_16","alias_value":"O6CIPCKSVXPR63Z6","created_at":"2026-07-05T03:06:23Z"},{"alias_kind":"pith_short_8","alias_value":"O6CIPCKS","created_at":"2026-07-05T03:06:23Z"}],"graph_snapshots":[{"event_id":"sha256:035722852b25252c6d4adc426d5d7d1fdc72c04b135c1498a3d80ad2a16f54c8","target":"graph","created_at":"2026-07-05T03:06:23Z","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/2104.07906/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"KMT-2016-BLG-2605, with planet-host mass ratio $q=0.012\\pm 0.001$, has the shortest Einstein timescale, $t_\\e = 3.41\\pm 0.13\\,$days, of any planetary microlensing event to date. This prompts us to examine the full sample of 7 short ($t_\\e<7\\,$day) planetary events with good $q$ measurements. We find that six have clustered Einstein radii $\\theta_\\e = 115\\pm 20\\,\\muas$ and lens-source relative proper motions $\\mu_\\rel\\simeq 9.5\\pm 2.5\\,\\masyr$. For the seventh, these two quantities could not be measured. These distributions are consistent with a Galactic-bulge population of very low-mass (VLM) ","authors_text":"Andrew Gould, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Dong-Jin Kim, Dong-Joo Lee, Hyoun-Woo Kim, In-Gu Shin, Jennifer C. Yee, Kyu-Ha Hwang, Michael D.Albrow, Richard W. Pogge, Sang-Mok Cha, Seung-Lee Kim, Sun-Ju Chung, Weicheng Zang, Yongseok Lee, Yoon-Hyun Ryu, Yossi Shvartzvald, Youn Kil Jung","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-16T06:10:30Z","title":"Shortest Microlensing Event with a Bound Planet: KMT-2016-BLG-2605"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.07906","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":"sha256:141584ad4dac8ea5639b3be470c83d547082aab8969a76f7e29ae19d201b3e41","target":"record","created_at":"2026-07-05T03:06:23Z","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":"c25955dd78a50122182d2040242f9f7c22c5c9441b7c5ddbd75f791519b12fdb","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-04-16T06:10:30Z","title_canon_sha256":"be7cacab5dbfeae06bcb1356e8a1fe64a3b1b87bc5ec8420893816c2b5819dcd"},"schema_version":"1.0","source":{"id":"2104.07906","kind":"arxiv","version":1}},"canonical_sha256":"7784878952addf1f6f3eec49c03ff4056eeac50a79e9a23323429ff512a52982","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7784878952addf1f6f3eec49c03ff4056eeac50a79e9a23323429ff512a52982","first_computed_at":"2026-07-05T03:06:23.792344Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:23.792344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hfpz/ReP1cXBVXjvPJsKii1lOpzkJ+z5op+x0jYfh8Ua5uTrFZwQWQps3paiT0aA/k4Dragb+9MRRxRdztThCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:23.792834Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.07906","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:141584ad4dac8ea5639b3be470c83d547082aab8969a76f7e29ae19d201b3e41","sha256:035722852b25252c6d4adc426d5d7d1fdc72c04b135c1498a3d80ad2a16f54c8"],"state_sha256":"0f7c4c739b4aca3791b9386d45f2a189656e233646232dd99ee72194193329bb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VCS1dmcvZyeemNsm0qhpOfsa2VMAjFC3euXdjDTD1ScOQf3mkWR9D07awXP8cDHICYtISLwktoNhkH+PXRK0CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T07:07:22.621984Z","bundle_sha256":"cdfc965daedd0549630c064f842294061703f3b02d3a72ca4100dfdc4fa7e033"}}