{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:TYNAP7Z3F7MDU4WWMOGRF24BL7","short_pith_number":"pith:TYNAP7Z3","canonical_record":{"source":{"id":"2407.00165","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-06-28T18:04:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"17ef5434bf30af7b0cba3970e37627f88eb70fc2f5b7843178dabf7abd2b09ef","abstract_canon_sha256":"47a1a8c8c6c2ed05fe6f5106828c24510399c6d0b5c331d367063bc05f159be6"},"schema_version":"1.0"},"canonical_sha256":"9e1a07ff3b2fd83a72d6638d12eb815fdcccc43f8eaaff2155a595e5ee373cf1","source":{"kind":"arxiv","id":"2407.00165","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.00165","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"arxiv_version","alias_value":"2407.00165v2","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.00165","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_12","alias_value":"TYNAP7Z3F7MD","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_16","alias_value":"TYNAP7Z3F7MDU4WW","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_8","alias_value":"TYNAP7Z3","created_at":"2026-07-05T09:02:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:TYNAP7Z3F7MDU4WWMOGRF24BL7","target":"record","payload":{"canonical_record":{"source":{"id":"2407.00165","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-06-28T18:04:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"17ef5434bf30af7b0cba3970e37627f88eb70fc2f5b7843178dabf7abd2b09ef","abstract_canon_sha256":"47a1a8c8c6c2ed05fe6f5106828c24510399c6d0b5c331d367063bc05f159be6"},"schema_version":"1.0"},"canonical_sha256":"9e1a07ff3b2fd83a72d6638d12eb815fdcccc43f8eaaff2155a595e5ee373cf1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:02:21.956121Z","signature_b64":"pfq1C0XnK0mOdpT0YThSR6BVDtD6ENDe7oftuc0zL14gtlPP67nLs4gdR2NPzoQVYagN4jrUSKcavqIa/a4XCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e1a07ff3b2fd83a72d6638d12eb815fdcccc43f8eaaff2155a595e5ee373cf1","last_reissued_at":"2026-07-05T09:02:21.955653Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:02:21.955653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2407.00165","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":"2026-07-05T09:02:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C1b712sU1/Q2nwzN/LRo3+1vQZgmIzWJcObe9hnrgN0GXh4DSFWz2xiUEVf4sEqNejY8Zdhc9tr9kCi/H6rfBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:38:12.384702Z"},"content_sha256":"c2a0dbb1fee0db797bb0b5c35a7d15367ef0958369223c0605ec3c84f8e28e30","schema_version":"1.0","event_id":"sha256:c2a0dbb1fee0db797bb0b5c35a7d15367ef0958369223c0605ec3c84f8e28e30"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:TYNAP7Z3F7MDU4WWMOGRF24BL7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-energy spectra of LTT 1445A and GJ 486 reveal flares and activity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. A. Medina, A. Brown, A. Youngblood, C. Froning, C. Schneider, D. J. Wilson, E. M.-R. Kempton, G. M. Duvvuri, G. W. King, H. Diamond-Lowe, J. G. Winters, J. L. Bean, J. M. Mendon\\c{c}a, J. S. Pineda, K. France, L. A. Buchhave, L. Corrales, L. Kreidberg, T. M. Evans-Soma, W. S. Howard, Y. Miguel, Z. K. Berta-Thompson","submitted_at":"2024-06-28T18:04:49Z","abstract_excerpt":"The high-energy radiative output, from the X-ray to the ultraviolet, of exoplanet host stars drives photochemical reactions and mass loss in the upper regions of planetary atmospheres. In order to place constraints on the atmospheric properties of the three closest terrestrial exoplanets transiting M dwarfs, we observe the high-energy spectra of the host stars LTT1445A and GJ486 in the X-ray with XMM-Newton and Chandra and in the ultraviolet with HST/COS and STIS. We combine these observations with estimates of extreme ultraviolet flux, reconstructions of the Ly-a lines, and stellar models at "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.00165","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.00165/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":"2026-07-05T09:02:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IdaRKZRVyVz/SDDnwlwWMSvY0eFF0WaM8X4o0Aq2BECaEW1uWlHMNCL3JMQyPlWxdM7p3N/P4g7XX/Hz1BsaDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T18:38:12.385105Z"},"content_sha256":"ca4053b6bb9efa1044b11d28f25681af06d34acab6c06dab89d634776b762dc2","schema_version":"1.0","event_id":"sha256:ca4053b6bb9efa1044b11d28f25681af06d34acab6c06dab89d634776b762dc2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/bundle.json","state_url":"https://pith.science/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/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":"2026-07-08T18:38:12Z","links":{"resolver":"https://pith.science/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7","bundle":"https://pith.science/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/bundle.json","state":"https://pith.science/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TYNAP7Z3F7MDU4WWMOGRF24BL7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:TYNAP7Z3F7MDU4WWMOGRF24BL7","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":"47a1a8c8c6c2ed05fe6f5106828c24510399c6d0b5c331d367063bc05f159be6","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-06-28T18:04:49Z","title_canon_sha256":"17ef5434bf30af7b0cba3970e37627f88eb70fc2f5b7843178dabf7abd2b09ef"},"schema_version":"1.0","source":{"id":"2407.00165","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2407.00165","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"arxiv_version","alias_value":"2407.00165v2","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.00165","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_12","alias_value":"TYNAP7Z3F7MD","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_16","alias_value":"TYNAP7Z3F7MDU4WW","created_at":"2026-07-05T09:02:21Z"},{"alias_kind":"pith_short_8","alias_value":"TYNAP7Z3","created_at":"2026-07-05T09:02:21Z"}],"graph_snapshots":[{"event_id":"sha256:ca4053b6bb9efa1044b11d28f25681af06d34acab6c06dab89d634776b762dc2","target":"graph","created_at":"2026-07-05T09:02:21Z","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/2407.00165/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The high-energy radiative output, from the X-ray to the ultraviolet, of exoplanet host stars drives photochemical reactions and mass loss in the upper regions of planetary atmospheres. In order to place constraints on the atmospheric properties of the three closest terrestrial exoplanets transiting M dwarfs, we observe the high-energy spectra of the host stars LTT1445A and GJ486 in the X-ray with XMM-Newton and Chandra and in the ultraviolet with HST/COS and STIS. We combine these observations with estimates of extreme ultraviolet flux, reconstructions of the Ly-a lines, and stellar models at ","authors_text":"A. A. Medina, A. Brown, A. Youngblood, C. Froning, C. Schneider, D. J. Wilson, E. M.-R. Kempton, G. M. Duvvuri, G. W. King, H. Diamond-Lowe, J. G. Winters, J. L. Bean, J. M. Mendon\\c{c}a, J. S. Pineda, K. France, L. A. Buchhave, L. Corrales, L. Kreidberg, T. M. Evans-Soma, W. S. Howard, Y. Miguel, Z. K. Berta-Thompson","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-06-28T18:04:49Z","title":"High-energy spectra of LTT 1445A and GJ 486 reveal flares and activity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.00165","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:c2a0dbb1fee0db797bb0b5c35a7d15367ef0958369223c0605ec3c84f8e28e30","target":"record","created_at":"2026-07-05T09:02:21Z","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":"47a1a8c8c6c2ed05fe6f5106828c24510399c6d0b5c331d367063bc05f159be6","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2024-06-28T18:04:49Z","title_canon_sha256":"17ef5434bf30af7b0cba3970e37627f88eb70fc2f5b7843178dabf7abd2b09ef"},"schema_version":"1.0","source":{"id":"2407.00165","kind":"arxiv","version":2}},"canonical_sha256":"9e1a07ff3b2fd83a72d6638d12eb815fdcccc43f8eaaff2155a595e5ee373cf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e1a07ff3b2fd83a72d6638d12eb815fdcccc43f8eaaff2155a595e5ee373cf1","first_computed_at":"2026-07-05T09:02:21.955653Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:02:21.955653Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pfq1C0XnK0mOdpT0YThSR6BVDtD6ENDe7oftuc0zL14gtlPP67nLs4gdR2NPzoQVYagN4jrUSKcavqIa/a4XCA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:02:21.956121Z","signed_message":"canonical_sha256_bytes"},"source_id":"2407.00165","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2a0dbb1fee0db797bb0b5c35a7d15367ef0958369223c0605ec3c84f8e28e30","sha256:ca4053b6bb9efa1044b11d28f25681af06d34acab6c06dab89d634776b762dc2"],"state_sha256":"24c4f7f7e962b80b36a9e368a98f23ed30d63dfe05a49295de0490a9289a2a2d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y3vBpl+GiLUlcLYliFtEPc/F5eT6rpVAc9yCIUdnp2k0trYLnmPWFlenN/6GlqxoQbg3YePdynAhsijKAZRTCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T18:38:12.387137Z","bundle_sha256":"d8107b1dcbba38cac9eb2a151a1a80baf9dac9617ed460a90973b7fe497c909f"}}