{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:XHQAMBNE7CUPMKTZI6WC76YHJW","short_pith_number":"pith:XHQAMBNE","canonical_record":{"source":{"id":"2508.19545","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T03:38:59Z","cross_cats_sorted":[],"title_canon_sha256":"452e7778d80e6714702ba8a85a3341b9ce77ec3232371e352b3af1c5dcf75704","abstract_canon_sha256":"498d642b18171aec58750927452c4ed5171d22a199f20036f5cb51abea6de391"},"schema_version":"1.0"},"canonical_sha256":"b9e00605a4f8a8f62a7947ac2ffb074db46479231754909c73c6eafc4db85fe9","source":{"kind":"arxiv","id":"2508.19545","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.19545","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"2508.19545v1","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.19545","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"XHQAMBNE7CUP","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_16","alias_value":"XHQAMBNE7CUPMKTZ","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_8","alias_value":"XHQAMBNE","created_at":"2026-07-05T12:00:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:XHQAMBNE7CUPMKTZI6WC76YHJW","target":"record","payload":{"canonical_record":{"source":{"id":"2508.19545","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T03:38:59Z","cross_cats_sorted":[],"title_canon_sha256":"452e7778d80e6714702ba8a85a3341b9ce77ec3232371e352b3af1c5dcf75704","abstract_canon_sha256":"498d642b18171aec58750927452c4ed5171d22a199f20036f5cb51abea6de391"},"schema_version":"1.0"},"canonical_sha256":"b9e00605a4f8a8f62a7947ac2ffb074db46479231754909c73c6eafc4db85fe9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T12:00:13.694237Z","signature_b64":"zJxkVRM5/MoCLbKB6F52Zf0wpqDF/5VmP5TNmIyMyJWf5fslR18p7in6IZMmXAllcO5UI+hTjjgvii6yjqUvBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9e00605a4f8a8f62a7947ac2ffb074db46479231754909c73c6eafc4db85fe9","last_reissued_at":"2026-07-05T12:00:13.693739Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T12:00:13.693739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.19545","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":"2026-07-05T12:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JiPXV4tpJfur5OxRdYeYWG80p1Ku0EmO+WnYDCsL9c1Y1nBoMu2/IxIzrYcI5S9W8j9sFGmH8LYv+B6vMBv/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:46:45.894500Z"},"content_sha256":"035d55b0c8507a0843e864d3323915d03898a2b63453f7d3555bd8c0ee158aee","schema_version":"1.0","event_id":"sha256:035d55b0c8507a0843e864d3323915d03898a2b63453f7d3555bd8c0ee158aee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:XHQAMBNE7CUPMKTZI6WC76YHJW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Decoding the Single-peaked HI Spectra of Low Redshift Post-starburst Galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Dong Yang, Jing Wang, Qifeng Huang, Sara L. Ellison, Xuchen Lin, Zezhong Liang","submitted_at":"2025-08-27T03:38:59Z","abstract_excerpt":"Recent observations with the Five-hundred-meter Aperture Spherical Telescope (FAST) have revealed abundant reservoirs of neutral hydrogen (HI) in low redshift post-starburst galaxies (PSBs), raising the question of why star formation ceases rapidly in these systems. In this study, we present a detailed analysis of the shape of the integrated HI spectra of 67 PSBs. We find that PSBs exhibit significantly higher HI spectral concentration values ($K$) compared to a matched sample from xGASS, and are more comparable to those of starburst galaxies. By extending our analysis to spatially resolved HI"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.19545","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/2508.19545/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":"2026-07-05T12:00:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e6kscBu6XrzNlsdhBOocVuVIm/df2ipWyPngx0y28/ORvfqqQn+DylDolVeArnFCDvvrcE+UxMtuG7gbWzE9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T13:46:45.894873Z"},"content_sha256":"8358ce70e66feabc1b736c1365a91aebc36a1c4dce35502e16e8910099cad564","schema_version":"1.0","event_id":"sha256:8358ce70e66feabc1b736c1365a91aebc36a1c4dce35502e16e8910099cad564"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/bundle.json","state_url":"https://pith.science/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/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":"2026-07-06T13:46:45Z","links":{"resolver":"https://pith.science/pith/XHQAMBNE7CUPMKTZI6WC76YHJW","bundle":"https://pith.science/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/bundle.json","state":"https://pith.science/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XHQAMBNE7CUPMKTZI6WC76YHJW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:XHQAMBNE7CUPMKTZI6WC76YHJW","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":"498d642b18171aec58750927452c4ed5171d22a199f20036f5cb51abea6de391","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T03:38:59Z","title_canon_sha256":"452e7778d80e6714702ba8a85a3341b9ce77ec3232371e352b3af1c5dcf75704"},"schema_version":"1.0","source":{"id":"2508.19545","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.19545","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"arxiv_version","alias_value":"2508.19545v1","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.19545","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_12","alias_value":"XHQAMBNE7CUP","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_16","alias_value":"XHQAMBNE7CUPMKTZ","created_at":"2026-07-05T12:00:13Z"},{"alias_kind":"pith_short_8","alias_value":"XHQAMBNE","created_at":"2026-07-05T12:00:13Z"}],"graph_snapshots":[{"event_id":"sha256:8358ce70e66feabc1b736c1365a91aebc36a1c4dce35502e16e8910099cad564","target":"graph","created_at":"2026-07-05T12:00:13Z","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/2508.19545/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent observations with the Five-hundred-meter Aperture Spherical Telescope (FAST) have revealed abundant reservoirs of neutral hydrogen (HI) in low redshift post-starburst galaxies (PSBs), raising the question of why star formation ceases rapidly in these systems. In this study, we present a detailed analysis of the shape of the integrated HI spectra of 67 PSBs. We find that PSBs exhibit significantly higher HI spectral concentration values ($K$) compared to a matched sample from xGASS, and are more comparable to those of starburst galaxies. By extending our analysis to spatially resolved HI","authors_text":"Dong Yang, Jing Wang, Qifeng Huang, Sara L. Ellison, Xuchen Lin, Zezhong Liang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T03:38:59Z","title":"Decoding the Single-peaked HI Spectra of Low Redshift Post-starburst Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.19545","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":"sha256:035d55b0c8507a0843e864d3323915d03898a2b63453f7d3555bd8c0ee158aee","target":"record","created_at":"2026-07-05T12:00:13Z","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":"498d642b18171aec58750927452c4ed5171d22a199f20036f5cb51abea6de391","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-27T03:38:59Z","title_canon_sha256":"452e7778d80e6714702ba8a85a3341b9ce77ec3232371e352b3af1c5dcf75704"},"schema_version":"1.0","source":{"id":"2508.19545","kind":"arxiv","version":1}},"canonical_sha256":"b9e00605a4f8a8f62a7947ac2ffb074db46479231754909c73c6eafc4db85fe9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9e00605a4f8a8f62a7947ac2ffb074db46479231754909c73c6eafc4db85fe9","first_computed_at":"2026-07-05T12:00:13.693739Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:00:13.693739Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zJxkVRM5/MoCLbKB6F52Zf0wpqDF/5VmP5TNmIyMyJWf5fslR18p7in6IZMmXAllcO5UI+hTjjgvii6yjqUvBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:00:13.694237Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.19545","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:035d55b0c8507a0843e864d3323915d03898a2b63453f7d3555bd8c0ee158aee","sha256:8358ce70e66feabc1b736c1365a91aebc36a1c4dce35502e16e8910099cad564"],"state_sha256":"18d5da16ba979230907310a66d71f4fbed279dab61774bfb44a1543501eea623"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hMYMaEZyMr3myBHq0prB2GFgB5Af+y1yB7pn7NBPywnirRuZs47vyasWwnNN6qW8A3AeaQnChJpeVreB64f4BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T13:46:45.896880Z","bundle_sha256":"7efcf04522b14d710886d97cc3fb0c5dc776f630eb39b4e7c6afabb7da54518c"}}