{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:DBWVEJFS5QTKZUFHGD66VX7UJD","short_pith_number":"pith:DBWVEJFS","canonical_record":{"source":{"id":"2409.00471","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-31T14:59:20Z","cross_cats_sorted":[],"title_canon_sha256":"daa15681c4fe46d017a68d80e3986345b924b5c8f224104fde471da61070a1f9","abstract_canon_sha256":"3ac90e58c14b95c9d0275ffeee41b978dd5e6a43cc163afd7e487c4f89501b5c"},"schema_version":"1.0"},"canonical_sha256":"186d5224b2ec26acd0a730fdeadff448ee948b5f1489a8cb39f8a29a32c77cbb","source":{"kind":"arxiv","id":"2409.00471","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.00471","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"arxiv_version","alias_value":"2409.00471v2","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.00471","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_12","alias_value":"DBWVEJFS5QTK","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_16","alias_value":"DBWVEJFS5QTKZUFH","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_8","alias_value":"DBWVEJFS","created_at":"2026-07-05T09:39:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:DBWVEJFS5QTKZUFHGD66VX7UJD","target":"record","payload":{"canonical_record":{"source":{"id":"2409.00471","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-31T14:59:20Z","cross_cats_sorted":[],"title_canon_sha256":"daa15681c4fe46d017a68d80e3986345b924b5c8f224104fde471da61070a1f9","abstract_canon_sha256":"3ac90e58c14b95c9d0275ffeee41b978dd5e6a43cc163afd7e487c4f89501b5c"},"schema_version":"1.0"},"canonical_sha256":"186d5224b2ec26acd0a730fdeadff448ee948b5f1489a8cb39f8a29a32c77cbb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:39:26.446245Z","signature_b64":"+HQd3h7QW0+ZfqxxyWbsoCN0lMfZCY4YgIPQJipyJGTlv9mcnYAKAamJstrLnrPL9nPyUqltkWf/iw9sPa2MDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"186d5224b2ec26acd0a730fdeadff448ee948b5f1489a8cb39f8a29a32c77cbb","last_reissued_at":"2026-07-05T09:39:26.445616Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:39:26.445616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.00471","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":"2026-07-05T09:39:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WaIL/dxW6vMnFCHWec0NImqVvhz4k63H8z0S80M/dOKThgI//cNWB9XklHxioghEsT4ZT181MygYQ3AdctWuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T09:09:24.993409Z"},"content_sha256":"70a834d4fd56a590cd767a953f81c0b6108cd4f24d0b0ec813b3c87b23e0d7f0","schema_version":"1.0","event_id":"sha256:70a834d4fd56a590cd767a953f81c0b6108cd4f24d0b0ec813b3c87b23e0d7f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:DBWVEJFS5QTKZUFHGD66VX7UJD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ejective feedback as a quenching mechanism in the 1.5 billion years of the universe: detection of neutral gas outflow in a $z=4$ recently quenched galaxy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Po-Feng Wu","submitted_at":"2024-08-31T14:59:20Z","abstract_excerpt":"The confirmation of massive quiescent galaxies emerging within the first billion years of the universe poses intriguing questions about the mechanisms of galaxy formation. There must be highly efficient processes at work to shut down star formation in galaxies at cosmic dawn. I present the detection of neutral outflowing gas in a massive recently quenched galaxy at $z=4$, showing ejective back as a quenching mechanism. Based on JWST spectrum, the star formation rate of this has been declining with a rapid e-folding timescale of $\\sim50$ Myrs. The current specific star formation rate is $5\\time"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.00471","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/2409.00471/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":"2026-07-05T09:39:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BMAsDUeYZH8QW5KpwuWo07l++ED9Qa7+CpsRdaEYyylqG7dJsafRmdCO17+st5wwK86hYHQsDk56yQg0JjXDBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T09:09:24.993965Z"},"content_sha256":"31bf25185965fbfd9d5584f069e7310519de4c9edcaf71b130f518e270b89bdd","schema_version":"1.0","event_id":"sha256:31bf25185965fbfd9d5584f069e7310519de4c9edcaf71b130f518e270b89bdd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/bundle.json","state_url":"https://pith.science/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/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":"2026-08-03T09:09:24Z","links":{"resolver":"https://pith.science/pith/DBWVEJFS5QTKZUFHGD66VX7UJD","bundle":"https://pith.science/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/bundle.json","state":"https://pith.science/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DBWVEJFS5QTKZUFHGD66VX7UJD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:DBWVEJFS5QTKZUFHGD66VX7UJD","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":"3ac90e58c14b95c9d0275ffeee41b978dd5e6a43cc163afd7e487c4f89501b5c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-31T14:59:20Z","title_canon_sha256":"daa15681c4fe46d017a68d80e3986345b924b5c8f224104fde471da61070a1f9"},"schema_version":"1.0","source":{"id":"2409.00471","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.00471","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"arxiv_version","alias_value":"2409.00471v2","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.00471","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_12","alias_value":"DBWVEJFS5QTK","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_16","alias_value":"DBWVEJFS5QTKZUFH","created_at":"2026-07-05T09:39:26Z"},{"alias_kind":"pith_short_8","alias_value":"DBWVEJFS","created_at":"2026-07-05T09:39:26Z"}],"graph_snapshots":[{"event_id":"sha256:31bf25185965fbfd9d5584f069e7310519de4c9edcaf71b130f518e270b89bdd","target":"graph","created_at":"2026-07-05T09:39:26Z","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/2409.00471/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The confirmation of massive quiescent galaxies emerging within the first billion years of the universe poses intriguing questions about the mechanisms of galaxy formation. There must be highly efficient processes at work to shut down star formation in galaxies at cosmic dawn. I present the detection of neutral outflowing gas in a massive recently quenched galaxy at $z=4$, showing ejective back as a quenching mechanism. Based on JWST spectrum, the star formation rate of this has been declining with a rapid e-folding timescale of $\\sim50$ Myrs. The current specific star formation rate is $5\\time","authors_text":"Po-Feng Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-31T14:59:20Z","title":"Ejective feedback as a quenching mechanism in the 1.5 billion years of the universe: detection of neutral gas outflow in a $z=4$ recently quenched galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.00471","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":"sha256:70a834d4fd56a590cd767a953f81c0b6108cd4f24d0b0ec813b3c87b23e0d7f0","target":"record","created_at":"2026-07-05T09:39:26Z","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":"3ac90e58c14b95c9d0275ffeee41b978dd5e6a43cc163afd7e487c4f89501b5c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-08-31T14:59:20Z","title_canon_sha256":"daa15681c4fe46d017a68d80e3986345b924b5c8f224104fde471da61070a1f9"},"schema_version":"1.0","source":{"id":"2409.00471","kind":"arxiv","version":2}},"canonical_sha256":"186d5224b2ec26acd0a730fdeadff448ee948b5f1489a8cb39f8a29a32c77cbb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"186d5224b2ec26acd0a730fdeadff448ee948b5f1489a8cb39f8a29a32c77cbb","first_computed_at":"2026-07-05T09:39:26.445616Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:39:26.445616Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+HQd3h7QW0+ZfqxxyWbsoCN0lMfZCY4YgIPQJipyJGTlv9mcnYAKAamJstrLnrPL9nPyUqltkWf/iw9sPa2MDA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:39:26.446245Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.00471","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70a834d4fd56a590cd767a953f81c0b6108cd4f24d0b0ec813b3c87b23e0d7f0","sha256:31bf25185965fbfd9d5584f069e7310519de4c9edcaf71b130f518e270b89bdd"],"state_sha256":"f36d2a817b23fd8d6e99d4a652074421c7f40121664393dfb0ee6abb6943864d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xsQ+xVyhAGTp5HYioqlNWjfMsNcs750ebJlAZ963w/Nf30tkdXXr0lJTG6lzkdOaBKejf5yKnv4EiBNLj4u/AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T09:09:25.000006Z","bundle_sha256":"f1e1bd70d1e7fc9c406c343e7912c0977d37853a93d5dc5fc1b2b46d8bb49755"}}