{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:LTLGHXDJPTD6AFM4HARSDZDOED","short_pith_number":"pith:LTLGHXDJ","canonical_record":{"source":{"id":"2608.04101","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-08-04T18:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"e8a1a4f7e7437ddba8cbb9409c70cff59449abc45bca9fb0dbbaf88cca7d584c","abstract_canon_sha256":"1f87cd656bb7855bf8ed3b10091872e7b87d465a1e62220b85eead0b4a386374"},"schema_version":"1.0"},"canonical_sha256":"5cd663dc697cc7e0159c382321e46e20ed69a4929a3073acdb979cd8ef0cc87c","source":{"kind":"arxiv","id":"2608.04101","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.04101","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"arxiv_version","alias_value":"2608.04101v1","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.04101","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_12","alias_value":"LTLGHXDJPTD6","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_16","alias_value":"LTLGHXDJPTD6AFM4","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_8","alias_value":"LTLGHXDJ","created_at":"2026-08-06T01:30:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:LTLGHXDJPTD6AFM4HARSDZDOED","target":"record","payload":{"canonical_record":{"source":{"id":"2608.04101","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-08-04T18:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"e8a1a4f7e7437ddba8cbb9409c70cff59449abc45bca9fb0dbbaf88cca7d584c","abstract_canon_sha256":"1f87cd656bb7855bf8ed3b10091872e7b87d465a1e62220b85eead0b4a386374"},"schema_version":"1.0"},"canonical_sha256":"5cd663dc697cc7e0159c382321e46e20ed69a4929a3073acdb979cd8ef0cc87c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-06T01:30:00.145246Z","signature_b64":"+DgrRxOAIpDPyTKkziPg42Em77hYNDO+Y1A33XHwAAgH+kktLuXRWAxPR+oUAdPMY2VjqyGR3VRGFg3McWOkBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5cd663dc697cc7e0159c382321e46e20ed69a4929a3073acdb979cd8ef0cc87c","last_reissued_at":"2026-08-06T01:30:00.143680Z","signature_status":"signed_v1","first_computed_at":"2026-08-06T01:30:00.143680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.04101","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":"2026-08-06T01:30:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LcmBQv4BOYo/O3v+rlmgC/MI53BhIXIxKxcuWH0cFDraa5kEnMei27eUf99o3BVq6aZeIT9r2yCP6oLULZYGDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T14:57:39.000324Z"},"content_sha256":"3f7770dcadf2ecf4a0052bd4374ed8897c2f48e4c75d23822ad40ad010defd00","schema_version":"1.0","event_id":"sha256:3f7770dcadf2ecf4a0052bd4374ed8897c2f48e4c75d23822ad40ad010defd00"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:LTLGHXDJPTD6AFM4HARSDZDOED","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implications of Broad [O III] 4364 and UV Line Emission in Two Little Red Dots at z ~ 7 - 8","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(10) Observatories of the Carnegie Institution for Science, (11) University of Connecticut), (2) Colby College, (3) NASA GSFC, 4), (4) University of Texas at Austin, 5), (5) University of Maryland, (6) STScI, (7) Penn State University, (8) NSF NOIRLab, (9) Rochester Institute of Technology, Anthony J. Taylor (4), Bren E. Backhaus, Casey Papovich (1), Dale D. Kocevski (2), Erini Lambrides (3, Grace M. Olivier (10), Jeyhan Kartaltepe (9), Jiayang Yang (1) ((1) Texas A&M University, Jonathan R. Trump (11), Kaila Ronayne (1), Mark Dickinson (8), Micaela B. Bagley (3, Nikko J. Cleri (7), Pablo Arrabal Haro (3), Ray Garner III (1), Rebecca L. Larson (6), Steven L. Finkelstein (4), Taylor A. Hutchison (3), Vasily Kokorev (4), Weida Hu (1)","submitted_at":"2026-08-04T18:00:10Z","abstract_excerpt":"We present deep, NIRSpec G140M and G395M spectroscopy of Little Red Dots (LRDs) at z = 6.68 and z = 8.35. Both LRDs show broad Balmer and [O III] $\\lambda$4364 emission. The broad [O III] $\\lambda$4364 lines have FWHM ~1000 km/s, about 1/3 that of the H$\\beta$ lines. Assuming gas temperatures T ~ 15,000 - 25,000 K, the [O III] $\\lambda$4364/[O III] $\\lambda$5008 ratios of the broad lines yield high gas densities, log n/cm^-3 = 6.3 to 7.9, 3-10$\\times$ higher than those in broad-line regions of low-redshift quasars. If the broad-lines trace virial motions, it is evidence for metal-enhanced gas "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.04101","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/2608.04101/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":"2026-08-06T01:30:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3j4LYLc7v9PWGH4WZHHaL/R3SSrjPcWAmoPn5a9wmSzE9thApsyC0HmF0CpyFNw7TmT7yIe7c2fLC2uXvs5pDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T14:57:39.000891Z"},"content_sha256":"fb37f12a92d4adf987180ff046afdcad0912107be9db0932e5c26dc92291c5d4","schema_version":"1.0","event_id":"sha256:fb37f12a92d4adf987180ff046afdcad0912107be9db0932e5c26dc92291c5d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LTLGHXDJPTD6AFM4HARSDZDOED/bundle.json","state_url":"https://pith.science/pith/LTLGHXDJPTD6AFM4HARSDZDOED/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LTLGHXDJPTD6AFM4HARSDZDOED/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":"2026-08-08T14:57:39Z","links":{"resolver":"https://pith.science/pith/LTLGHXDJPTD6AFM4HARSDZDOED","bundle":"https://pith.science/pith/LTLGHXDJPTD6AFM4HARSDZDOED/bundle.json","state":"https://pith.science/pith/LTLGHXDJPTD6AFM4HARSDZDOED/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LTLGHXDJPTD6AFM4HARSDZDOED/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:LTLGHXDJPTD6AFM4HARSDZDOED","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":"1f87cd656bb7855bf8ed3b10091872e7b87d465a1e62220b85eead0b4a386374","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-08-04T18:00:10Z","title_canon_sha256":"e8a1a4f7e7437ddba8cbb9409c70cff59449abc45bca9fb0dbbaf88cca7d584c"},"schema_version":"1.0","source":{"id":"2608.04101","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.04101","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"arxiv_version","alias_value":"2608.04101v1","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.04101","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_12","alias_value":"LTLGHXDJPTD6","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_16","alias_value":"LTLGHXDJPTD6AFM4","created_at":"2026-08-06T01:30:00Z"},{"alias_kind":"pith_short_8","alias_value":"LTLGHXDJ","created_at":"2026-08-06T01:30:00Z"}],"graph_snapshots":[{"event_id":"sha256:fb37f12a92d4adf987180ff046afdcad0912107be9db0932e5c26dc92291c5d4","target":"graph","created_at":"2026-08-06T01:30:00Z","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/2608.04101/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present deep, NIRSpec G140M and G395M spectroscopy of Little Red Dots (LRDs) at z = 6.68 and z = 8.35. Both LRDs show broad Balmer and [O III] $\\lambda$4364 emission. The broad [O III] $\\lambda$4364 lines have FWHM ~1000 km/s, about 1/3 that of the H$\\beta$ lines. Assuming gas temperatures T ~ 15,000 - 25,000 K, the [O III] $\\lambda$4364/[O III] $\\lambda$5008 ratios of the broad lines yield high gas densities, log n/cm^-3 = 6.3 to 7.9, 3-10$\\times$ higher than those in broad-line regions of low-redshift quasars. If the broad-lines trace virial motions, it is evidence for metal-enhanced gas ","authors_text":"(10) Observatories of the Carnegie Institution for Science, (11) University of Connecticut), (2) Colby College, (3) NASA GSFC, 4), (4) University of Texas at Austin, 5), (5) University of Maryland, (6) STScI, (7) Penn State University, (8) NSF NOIRLab, (9) Rochester Institute of Technology, Anthony J. Taylor (4), Bren E. Backhaus, Casey Papovich (1), Dale D. Kocevski (2), Erini Lambrides (3, Grace M. Olivier (10), Jeyhan Kartaltepe (9), Jiayang Yang (1) ((1) Texas A&M University, Jonathan R. Trump (11), Kaila Ronayne (1), Mark Dickinson (8), Micaela B. Bagley (3, Nikko J. Cleri (7), Pablo Arrabal Haro (3), Ray Garner III (1), Rebecca L. Larson (6), Steven L. Finkelstein (4), Taylor A. Hutchison (3), Vasily Kokorev (4), Weida Hu (1)","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-08-04T18:00:10Z","title":"Implications of Broad [O III] 4364 and UV Line Emission in Two Little Red Dots at z ~ 7 - 8"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.04101","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":"sha256:3f7770dcadf2ecf4a0052bd4374ed8897c2f48e4c75d23822ad40ad010defd00","target":"record","created_at":"2026-08-06T01:30:00Z","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":"1f87cd656bb7855bf8ed3b10091872e7b87d465a1e62220b85eead0b4a386374","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-08-04T18:00:10Z","title_canon_sha256":"e8a1a4f7e7437ddba8cbb9409c70cff59449abc45bca9fb0dbbaf88cca7d584c"},"schema_version":"1.0","source":{"id":"2608.04101","kind":"arxiv","version":1}},"canonical_sha256":"5cd663dc697cc7e0159c382321e46e20ed69a4929a3073acdb979cd8ef0cc87c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5cd663dc697cc7e0159c382321e46e20ed69a4929a3073acdb979cd8ef0cc87c","first_computed_at":"2026-08-06T01:30:00.143680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-06T01:30:00.143680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+DgrRxOAIpDPyTKkziPg42Em77hYNDO+Y1A33XHwAAgH+kktLuXRWAxPR+oUAdPMY2VjqyGR3VRGFg3McWOkBA==","signature_status":"signed_v1","signed_at":"2026-08-06T01:30:00.145246Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.04101","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f7770dcadf2ecf4a0052bd4374ed8897c2f48e4c75d23822ad40ad010defd00","sha256:fb37f12a92d4adf987180ff046afdcad0912107be9db0932e5c26dc92291c5d4"],"state_sha256":"d1ae97b63c3078ac798987114276a164450a6cdcd826796f0bbf49dad44be9fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wRcH/4vLbcvtlooppLiaBSVAaQonIoJ/tQCTLafRhraCw4wAiJ/ZjYRTqGbYiI/3oRRgA5y9q2JbQ3dhIzriAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T14:57:39.006488Z","bundle_sha256":"f0c6d2c33077e9c101f68b9c41ea4b65bc6112b9aefa175dc9b2d24663cb31dc"}}