{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:U23PX63GCW7TPT3F3OXPVYGJ3N","short_pith_number":"pith:U23PX63G","canonical_record":{"source":{"id":"2007.05204","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-10T07:06:06Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2c4c716575710bcd6f21bd1c204b55ff6ac29b0c88af31db56a240a506557d3c","abstract_canon_sha256":"ab20f37862917578edc29c606387c34b26a3913929279f308c2020c2b2d22b45"},"schema_version":"1.0"},"canonical_sha256":"a6b6fbfb6615bf37cf65dbaefae0c9db4625e4677c4e1a5f6c1e4d7535aa6041","source":{"kind":"arxiv","id":"2007.05204","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.05204","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2007.05204v1","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.05204","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"U23PX63GCW7T","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"U23PX63GCW7TPT3F","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"U23PX63G","created_at":"2026-07-05T01:17:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:U23PX63GCW7TPT3F3OXPVYGJ3N","target":"record","payload":{"canonical_record":{"source":{"id":"2007.05204","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-10T07:06:06Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"2c4c716575710bcd6f21bd1c204b55ff6ac29b0c88af31db56a240a506557d3c","abstract_canon_sha256":"ab20f37862917578edc29c606387c34b26a3913929279f308c2020c2b2d22b45"},"schema_version":"1.0"},"canonical_sha256":"a6b6fbfb6615bf37cf65dbaefae0c9db4625e4677c4e1a5f6c1e4d7535aa6041","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:17:44.644114Z","signature_b64":"SDYShd5nb/kbc3oT3ycTX8IXnW1Uutb8X3QumfiKqF2JoX3negrvt/TgmdNzQ2Fhjkop4bbffPfh/9Mib0cwCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6b6fbfb6615bf37cf65dbaefae0c9db4625e4677c4e1a5f6c1e4d7535aa6041","last_reissued_at":"2026-07-05T01:17:44.643747Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:17:44.643747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2007.05204","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":"2026-07-05T01:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SMmHI7Pu/pZ3D9hmDfP3Iz/tGhST/zhgX3AcirY6034EDUQWF9k4xroF6RF7i9BlzgADcWnwJLCO8nG39aX9Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T22:47:43.594603Z"},"content_sha256":"70b58212701b83a89dbdaaca41c398ec7743472b3844c51afdd0d5206382f055","schema_version":"1.0","event_id":"sha256:70b58212701b83a89dbdaaca41c398ec7743472b3844c51afdd0d5206382f055"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:U23PX63GCW7TPT3F3OXPVYGJ3N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"KMT-2018-BLG-0748Lb: Sub-Saturn Microlensing Planet Orbiting an Ultracool Host","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Andrew Gould, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Doeon Kim, 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":"2020-07-10T07:06:06Z","abstract_excerpt":"We announce the discovery of a microlensing planetary system, in which a sub-Saturn planet is orbiting an ultracool dwarf host. We detect the planetary system by analyzing the short-timescale ($t_{\\rm E}\\sim 4.4$~days) lensing event KMT-2018-BLG-0748. The central part of the light curve exhibits asymmetry due to the negative deviations in the rising part and the positive deviations in the falling part. We find that the deviations are explained by a binary-lens model with a mass ratio between the lens components of $q\\sim 2\\times 10^{-3}$. The short event timescale together with the small angul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.05204","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/2007.05204/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":"2026-07-05T01:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tjtqrwytGv+VCtMcMVHK7mDUlvH9xaIgltL/KYpBSIa2VnJaH8mS2pvYkv7rncwhUaPcDNRxrgHCAwf9+V5LDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T22:47:43.595575Z"},"content_sha256":"c5dd5d1b83aab2b67ee10fc9e116daecdc9eb62ebedca3e74258f84fcf7b66b7","schema_version":"1.0","event_id":"sha256:c5dd5d1b83aab2b67ee10fc9e116daecdc9eb62ebedca3e74258f84fcf7b66b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/bundle.json","state_url":"https://pith.science/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/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":"2026-08-09T22:47:43Z","links":{"resolver":"https://pith.science/pith/U23PX63GCW7TPT3F3OXPVYGJ3N","bundle":"https://pith.science/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/bundle.json","state":"https://pith.science/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U23PX63GCW7TPT3F3OXPVYGJ3N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:U23PX63GCW7TPT3F3OXPVYGJ3N","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":"ab20f37862917578edc29c606387c34b26a3913929279f308c2020c2b2d22b45","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-10T07:06:06Z","title_canon_sha256":"2c4c716575710bcd6f21bd1c204b55ff6ac29b0c88af31db56a240a506557d3c"},"schema_version":"1.0","source":{"id":"2007.05204","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.05204","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2007.05204v1","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.05204","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"U23PX63GCW7T","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"U23PX63GCW7TPT3F","created_at":"2026-07-05T01:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"U23PX63G","created_at":"2026-07-05T01:17:44Z"}],"graph_snapshots":[{"event_id":"sha256:c5dd5d1b83aab2b67ee10fc9e116daecdc9eb62ebedca3e74258f84fcf7b66b7","target":"graph","created_at":"2026-07-05T01:17:44Z","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/2007.05204/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We announce the discovery of a microlensing planetary system, in which a sub-Saturn planet is orbiting an ultracool dwarf host. We detect the planetary system by analyzing the short-timescale ($t_{\\rm E}\\sim 4.4$~days) lensing event KMT-2018-BLG-0748. The central part of the light curve exhibits asymmetry due to the negative deviations in the rising part and the positive deviations in the falling part. We find that the deviations are explained by a binary-lens model with a mass ratio between the lens components of $q\\sim 2\\times 10^{-3}$. The short event timescale together with the small angul","authors_text":"Andrew Gould, Byeong-Gon Park, Cheongho Han, Chung-Uk Lee, Doeon Kim, 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.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-10T07:06:06Z","title":"KMT-2018-BLG-0748Lb: Sub-Saturn Microlensing Planet Orbiting an Ultracool Host"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.05204","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":"sha256:70b58212701b83a89dbdaaca41c398ec7743472b3844c51afdd0d5206382f055","target":"record","created_at":"2026-07-05T01:17:44Z","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":"ab20f37862917578edc29c606387c34b26a3913929279f308c2020c2b2d22b45","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-07-10T07:06:06Z","title_canon_sha256":"2c4c716575710bcd6f21bd1c204b55ff6ac29b0c88af31db56a240a506557d3c"},"schema_version":"1.0","source":{"id":"2007.05204","kind":"arxiv","version":1}},"canonical_sha256":"a6b6fbfb6615bf37cf65dbaefae0c9db4625e4677c4e1a5f6c1e4d7535aa6041","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6b6fbfb6615bf37cf65dbaefae0c9db4625e4677c4e1a5f6c1e4d7535aa6041","first_computed_at":"2026-07-05T01:17:44.643747Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:17:44.643747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SDYShd5nb/kbc3oT3ycTX8IXnW1Uutb8X3QumfiKqF2JoX3negrvt/TgmdNzQ2Fhjkop4bbffPfh/9Mib0cwCA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:17:44.644114Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.05204","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70b58212701b83a89dbdaaca41c398ec7743472b3844c51afdd0d5206382f055","sha256:c5dd5d1b83aab2b67ee10fc9e116daecdc9eb62ebedca3e74258f84fcf7b66b7"],"state_sha256":"94b4ff5726fd3db1c01585827b395d38e9ed9cee8a5b504fc9416551dde7eda7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FKyy/iMuE5KF5TRvjYXZ2uyvPnHKHxlkMtFFz2WthhmXt8chL9yFQkuhRmkRkenNyw88i4Nb5Rp3Y+/QG1hXCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T22:47:43.602178Z","bundle_sha256":"02a024e3881f2727845a1821d07264cf701bc060be76d6292077a220833b64fd"}}