{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:PU2GACXQODK4JZ5ZJJPBUBPZNI","short_pith_number":"pith:PU2GACXQ","canonical_record":{"source":{"id":"2409.11460","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-17T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1b2efcc9dfa2feb3d6725f23e832eb933df4aeb74de09b83b9237fcfede7f3e4","abstract_canon_sha256":"4ae245bb4e53bd370c1558a944896859872e12b1d60d157365803c08171581ed"},"schema_version":"1.0"},"canonical_sha256":"7d34600af070d5c4e7b94a5e1a05f96a0b64e093ce8b34a0d1f86abc7f6b0802","source":{"kind":"arxiv","id":"2409.11460","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.11460","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"2409.11460v1","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.11460","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"PU2GACXQODK4","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"PU2GACXQODK4JZ5Z","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"PU2GACXQ","created_at":"2026-07-05T09:08:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:PU2GACXQODK4JZ5ZJJPBUBPZNI","target":"record","payload":{"canonical_record":{"source":{"id":"2409.11460","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-17T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"1b2efcc9dfa2feb3d6725f23e832eb933df4aeb74de09b83b9237fcfede7f3e4","abstract_canon_sha256":"4ae245bb4e53bd370c1558a944896859872e12b1d60d157365803c08171581ed"},"schema_version":"1.0"},"canonical_sha256":"7d34600af070d5c4e7b94a5e1a05f96a0b64e093ce8b34a0d1f86abc7f6b0802","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:08:31.500085Z","signature_b64":"eIfGfmpmR4hYrbzKqp5tK2W1SMf8uK4wCEjx0+4agqJk8ggBmTcsQX/O7zHjDekbockqn1IUleXLg9IZipshBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d34600af070d5c4e7b94a5e1a05f96a0b64e093ce8b34a0d1f86abc7f6b0802","last_reissued_at":"2026-07-05T09:08:31.499532Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:08:31.499532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.11460","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":"2026-07-05T09:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TmjuZTk8RQN04eg54o4L4eEn8KGjj/e/Cxz959xVyBieBl2E3VOhmyMISSO0EPW2emBDed8lU1hKdwavkFSeDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T03:12:24.712717Z"},"content_sha256":"1eba79d8761c439df6020940f0611366252fe7064308f584c3d8ab50d5942aa3","schema_version":"1.0","event_id":"sha256:1eba79d8761c439df6020940f0611366252fe7064308f584c3d8ab50d5942aa3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:PU2GACXQODK4JZ5ZJJPBUBPZNI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Local Analogs of Potential Ionizers of the Intergalactic Medium: Compact Star-Forming Galaxies with Intense CIV $\\lambda$1550 Emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anne E. Jaskot, Bethan L. James, Henry C. Ferguson, Intae Jung, Swara Ravindranath","submitted_at":"2024-09-17T18:00:00Z","abstract_excerpt":"We performed spectroscopic analyses of five local compact star-forming galaxies (CSFGs) with extremely high [OIII]/[OII] (O$_{32}$) ratios ($>20$). These targets remarkably share similar properties with high-redshift CIV emitters at $z>6$: high H$\\beta$ equivalent widths (EWs $>200$\\AA), extreme O$_{32}$ ratios, low metallicities (12+log(O/H) $\\lesssim7.8$), low C/O abundances (log(C/O) $<-0.6$), and high ionization conditions (log$U>-2$). The UV spectra were acquired using the Hubble Space Telescope's (HST) Cosmic Origins Spectrograph (COS) and Space Telescope Imaging Spectrograph (STIS). We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.11460","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/2409.11460/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":"2026-07-05T09:08:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aIKdDCBm5qNycSsOrJ2FC9X2sjRUdx8xCxVHLlymHVA+8YOIeGfgKXkgNy87ui1hUDAbpvhsj96lVRo0XD3hAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T03:12:24.713432Z"},"content_sha256":"fcd7ea155233b8ede0dbaa1dc7649ab3decc1a85cac8f9a5294fc8c6b1ff62e4","schema_version":"1.0","event_id":"sha256:fcd7ea155233b8ede0dbaa1dc7649ab3decc1a85cac8f9a5294fc8c6b1ff62e4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/bundle.json","state_url":"https://pith.science/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/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":"2026-08-10T03:12:24Z","links":{"resolver":"https://pith.science/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI","bundle":"https://pith.science/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/bundle.json","state":"https://pith.science/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PU2GACXQODK4JZ5ZJJPBUBPZNI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:PU2GACXQODK4JZ5ZJJPBUBPZNI","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":"4ae245bb4e53bd370c1558a944896859872e12b1d60d157365803c08171581ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-17T18:00:00Z","title_canon_sha256":"1b2efcc9dfa2feb3d6725f23e832eb933df4aeb74de09b83b9237fcfede7f3e4"},"schema_version":"1.0","source":{"id":"2409.11460","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.11460","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"arxiv_version","alias_value":"2409.11460v1","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.11460","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_12","alias_value":"PU2GACXQODK4","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_16","alias_value":"PU2GACXQODK4JZ5Z","created_at":"2026-07-05T09:08:31Z"},{"alias_kind":"pith_short_8","alias_value":"PU2GACXQ","created_at":"2026-07-05T09:08:31Z"}],"graph_snapshots":[{"event_id":"sha256:fcd7ea155233b8ede0dbaa1dc7649ab3decc1a85cac8f9a5294fc8c6b1ff62e4","target":"graph","created_at":"2026-07-05T09:08:31Z","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/2409.11460/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We performed spectroscopic analyses of five local compact star-forming galaxies (CSFGs) with extremely high [OIII]/[OII] (O$_{32}$) ratios ($>20$). These targets remarkably share similar properties with high-redshift CIV emitters at $z>6$: high H$\\beta$ equivalent widths (EWs $>200$\\AA), extreme O$_{32}$ ratios, low metallicities (12+log(O/H) $\\lesssim7.8$), low C/O abundances (log(C/O) $<-0.6$), and high ionization conditions (log$U>-2$). The UV spectra were acquired using the Hubble Space Telescope's (HST) Cosmic Origins Spectrograph (COS) and Space Telescope Imaging Spectrograph (STIS). We ","authors_text":"Anne E. Jaskot, Bethan L. James, Henry C. Ferguson, Intae Jung, Swara Ravindranath","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-17T18:00:00Z","title":"Local Analogs of Potential Ionizers of the Intergalactic Medium: Compact Star-Forming Galaxies with Intense CIV $\\lambda$1550 Emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.11460","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":"sha256:1eba79d8761c439df6020940f0611366252fe7064308f584c3d8ab50d5942aa3","target":"record","created_at":"2026-07-05T09:08:31Z","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":"4ae245bb4e53bd370c1558a944896859872e12b1d60d157365803c08171581ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-09-17T18:00:00Z","title_canon_sha256":"1b2efcc9dfa2feb3d6725f23e832eb933df4aeb74de09b83b9237fcfede7f3e4"},"schema_version":"1.0","source":{"id":"2409.11460","kind":"arxiv","version":1}},"canonical_sha256":"7d34600af070d5c4e7b94a5e1a05f96a0b64e093ce8b34a0d1f86abc7f6b0802","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d34600af070d5c4e7b94a5e1a05f96a0b64e093ce8b34a0d1f86abc7f6b0802","first_computed_at":"2026-07-05T09:08:31.499532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:08:31.499532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eIfGfmpmR4hYrbzKqp5tK2W1SMf8uK4wCEjx0+4agqJk8ggBmTcsQX/O7zHjDekbockqn1IUleXLg9IZipshBA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:08:31.500085Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.11460","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1eba79d8761c439df6020940f0611366252fe7064308f584c3d8ab50d5942aa3","sha256:fcd7ea155233b8ede0dbaa1dc7649ab3decc1a85cac8f9a5294fc8c6b1ff62e4"],"state_sha256":"64693b28b43b45669e0615cf84a0c79c6873dbed7c792c60fa1cfc4812ebf11b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MoE0mvYUVJOM51fZ7lPtKCYZJXLH2S98u6JQ2YJ8Umf09KuQm9VvDij9Lxpiqwuj2usf0wMnrHnJJUKB8rK/AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T03:12:24.717427Z","bundle_sha256":"7604be8d36f2ae9a7e658dcbf599aeac72710c322079fe72119971c3142d82e3"}}