{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:N4WX3WZALMHLTWDFSLXRY67B6K","short_pith_number":"pith:N4WX3WZA","canonical_record":{"source":{"id":"2303.12467","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-22T11:27:34Z","cross_cats_sorted":[],"title_canon_sha256":"287667def63a99f5c7b7dc1c0168ae59241271b2282689e918f8f2d97086c42d","abstract_canon_sha256":"8f08475d265d9afa9298431d6f3919d47ed198cea624b3d68944ac1f6460acb6"},"schema_version":"1.0"},"canonical_sha256":"6f2d7ddb205b0eb9d86592ef1c7be1f2bac5aae1148f4abc460f59e06a3fb6b7","source":{"kind":"arxiv","id":"2303.12467","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.12467","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"arxiv_version","alias_value":"2303.12467v2","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.12467","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_12","alias_value":"N4WX3WZALMHL","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_16","alias_value":"N4WX3WZALMHLTWDF","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_8","alias_value":"N4WX3WZA","created_at":"2026-07-05T07:37:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:N4WX3WZALMHLTWDFSLXRY67B6K","target":"record","payload":{"canonical_record":{"source":{"id":"2303.12467","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-22T11:27:34Z","cross_cats_sorted":[],"title_canon_sha256":"287667def63a99f5c7b7dc1c0168ae59241271b2282689e918f8f2d97086c42d","abstract_canon_sha256":"8f08475d265d9afa9298431d6f3919d47ed198cea624b3d68944ac1f6460acb6"},"schema_version":"1.0"},"canonical_sha256":"6f2d7ddb205b0eb9d86592ef1c7be1f2bac5aae1148f4abc460f59e06a3fb6b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:37:48.943595Z","signature_b64":"d1LwWR2IV4itBlJobSM5u+jIrR/DpWT8JUBTzVsHFwyuL8lcqFyCLwL6xvyzTq84Eo9kLHHdgRcPhUdJ0dmNCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f2d7ddb205b0eb9d86592ef1c7be1f2bac5aae1148f4abc460f59e06a3fb6b7","last_reissued_at":"2026-07-05T07:37:48.943058Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:37:48.943058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2303.12467","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":"2026-07-05T07:37:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LsipR0GxX8z+nobHKd0SB2lVJk7OrGeDQ4QrNnF+RcuKJf1tonVHmnMylkr6BQJUu2506cD6NBLxtPH5cTL1Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:20:01.644071Z"},"content_sha256":"c42637fef28bef21218aae6255cd5c4446ad2cdb763965d0f54b46b0a82e9169","schema_version":"1.0","event_id":"sha256:c42637fef28bef21218aae6255cd5c4446ad2cdb763965d0f54b46b0a82e9169"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:N4WX3WZALMHLTWDFSLXRY67B6K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely-Metal Poor Galaxies","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Akihiro Suzuki, Akinori Matsumoto, Akio K. Inoue, Chien-Hsiu Lee, Eric Emsellem, Gen Chiaki, Hajime Fukushima, Haruka Kusakabe, Hidenobu Yajima, Hiroya Umeda, Ji Hoon Kim, John H. Wise, Kai Murai, Keita Fukushima, Ken Mawatari, Kentaro Motohara, Kentaro Nagamine, Kimihiko Nakajima, Kiyoto Yabe, Kohei Hayashi, Kuria Watanabe, Masahiro Kawasaki, Masami Ouchi, Masato Onodera, Masayuki Umemura, Michael Rauch, Michael V. Maseda, Moka Nishigaki, Nicolas F. Bouch\\'e, Rin Sasaki, Seiji Fujimoto, Shinobu Ozaki, Shohei Aoyama, Shuhei Koyama, Shun Hatano, Takashi Hattori, Takashi J. Moriya, Takashi Kojima, Takatoshi Shibuya, Tohru Nagao, Tomoki Saito, Tsutomu T. Takeuchi, Tsuyoshi Ishigaki, Yechi Zhang, Yi Xu, Yoshiaki Ono, Yuichi Harikane, Yuki Isobe, Yuma Sugahara, Yusei Koyama, Yutaka Hirai, Yutaka Komiyama","submitted_at":"2023-03-22T11:27:34Z","abstract_excerpt":"We present demography of the dynamics and gas-mass fraction of 33 extremely metal-poor galaxies (EMPGs) with metallicities of $0.015-0.195~Z_\\odot$ and low stellar masses of $10^4-10^8~M_\\odot$ in the local universe. We conduct deep optical integral-field spectroscopy (IFS) for the low-mass EMPGs with the medium high resolution ($R=7500$) grism of the 8m-Subaru FOCAS IFU instrument by the EMPRESS 3D survey, and investigate H$\\alpha$ emission of the EMPGs. Exploiting the resolution high enough for the low-mass galaxies, we derive gas dynamics with the H$\\alpha$ lines by the fitting of 3-dimensi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.12467","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/2303.12467/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":"2026-07-05T07:37:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/d/R+Rz1MltVI6aGzAo5gmNg8+sUo+IRnmMD5RJ7iyJxog/M+nQTRWL0XSihNFQsj9sf4JGr1ec/Py93x7jAAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T23:20:01.644648Z"},"content_sha256":"c0a5e01d8a5c2f9e4bd19065d45e76569083d5c1bcf6a86d587ade4007f7b0d8","schema_version":"1.0","event_id":"sha256:c0a5e01d8a5c2f9e4bd19065d45e76569083d5c1bcf6a86d587ade4007f7b0d8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N4WX3WZALMHLTWDFSLXRY67B6K/bundle.json","state_url":"https://pith.science/pith/N4WX3WZALMHLTWDFSLXRY67B6K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N4WX3WZALMHLTWDFSLXRY67B6K/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":"2026-08-10T23:20:01Z","links":{"resolver":"https://pith.science/pith/N4WX3WZALMHLTWDFSLXRY67B6K","bundle":"https://pith.science/pith/N4WX3WZALMHLTWDFSLXRY67B6K/bundle.json","state":"https://pith.science/pith/N4WX3WZALMHLTWDFSLXRY67B6K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N4WX3WZALMHLTWDFSLXRY67B6K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:N4WX3WZALMHLTWDFSLXRY67B6K","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":"8f08475d265d9afa9298431d6f3919d47ed198cea624b3d68944ac1f6460acb6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-22T11:27:34Z","title_canon_sha256":"287667def63a99f5c7b7dc1c0168ae59241271b2282689e918f8f2d97086c42d"},"schema_version":"1.0","source":{"id":"2303.12467","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2303.12467","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"arxiv_version","alias_value":"2303.12467v2","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2303.12467","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_12","alias_value":"N4WX3WZALMHL","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_16","alias_value":"N4WX3WZALMHLTWDF","created_at":"2026-07-05T07:37:48Z"},{"alias_kind":"pith_short_8","alias_value":"N4WX3WZA","created_at":"2026-07-05T07:37:48Z"}],"graph_snapshots":[{"event_id":"sha256:c0a5e01d8a5c2f9e4bd19065d45e76569083d5c1bcf6a86d587ade4007f7b0d8","target":"graph","created_at":"2026-07-05T07:37:48Z","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/2303.12467/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present demography of the dynamics and gas-mass fraction of 33 extremely metal-poor galaxies (EMPGs) with metallicities of $0.015-0.195~Z_\\odot$ and low stellar masses of $10^4-10^8~M_\\odot$ in the local universe. We conduct deep optical integral-field spectroscopy (IFS) for the low-mass EMPGs with the medium high resolution ($R=7500$) grism of the 8m-Subaru FOCAS IFU instrument by the EMPRESS 3D survey, and investigate H$\\alpha$ emission of the EMPGs. Exploiting the resolution high enough for the low-mass galaxies, we derive gas dynamics with the H$\\alpha$ lines by the fitting of 3-dimensi","authors_text":"Akihiro Suzuki, Akinori Matsumoto, Akio K. Inoue, Chien-Hsiu Lee, Eric Emsellem, Gen Chiaki, Hajime Fukushima, Haruka Kusakabe, Hidenobu Yajima, Hiroya Umeda, Ji Hoon Kim, John H. Wise, Kai Murai, Keita Fukushima, Ken Mawatari, Kentaro Motohara, Kentaro Nagamine, Kimihiko Nakajima, Kiyoto Yabe, Kohei Hayashi, Kuria Watanabe, Masahiro Kawasaki, Masami Ouchi, Masato Onodera, Masayuki Umemura, Michael Rauch, Michael V. Maseda, Moka Nishigaki, Nicolas F. Bouch\\'e, Rin Sasaki, Seiji Fujimoto, Shinobu Ozaki, Shohei Aoyama, Shuhei Koyama, Shun Hatano, Takashi Hattori, Takashi J. Moriya, Takashi Kojima, Takatoshi Shibuya, Tohru Nagao, Tomoki Saito, Tsutomu T. Takeuchi, Tsuyoshi Ishigaki, Yechi Zhang, Yi Xu, Yoshiaki Ono, Yuichi Harikane, Yuki Isobe, Yuma Sugahara, Yusei Koyama, Yutaka Hirai, Yutaka Komiyama","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-22T11:27:34Z","title":"EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely-Metal Poor Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2303.12467","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:c42637fef28bef21218aae6255cd5c4446ad2cdb763965d0f54b46b0a82e9169","target":"record","created_at":"2026-07-05T07:37:48Z","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":"8f08475d265d9afa9298431d6f3919d47ed198cea624b3d68944ac1f6460acb6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2023-03-22T11:27:34Z","title_canon_sha256":"287667def63a99f5c7b7dc1c0168ae59241271b2282689e918f8f2d97086c42d"},"schema_version":"1.0","source":{"id":"2303.12467","kind":"arxiv","version":2}},"canonical_sha256":"6f2d7ddb205b0eb9d86592ef1c7be1f2bac5aae1148f4abc460f59e06a3fb6b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f2d7ddb205b0eb9d86592ef1c7be1f2bac5aae1148f4abc460f59e06a3fb6b7","first_computed_at":"2026-07-05T07:37:48.943058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:37:48.943058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d1LwWR2IV4itBlJobSM5u+jIrR/DpWT8JUBTzVsHFwyuL8lcqFyCLwL6xvyzTq84Eo9kLHHdgRcPhUdJ0dmNCA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:37:48.943595Z","signed_message":"canonical_sha256_bytes"},"source_id":"2303.12467","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c42637fef28bef21218aae6255cd5c4446ad2cdb763965d0f54b46b0a82e9169","sha256:c0a5e01d8a5c2f9e4bd19065d45e76569083d5c1bcf6a86d587ade4007f7b0d8"],"state_sha256":"2a6f11715c8ea45ebb3a7a856c1bf5928f5782d80385ce56dbfd42bef080fbea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Oa54EzSzWu0DfQknRjRKyD3HsQqnuF4ZaEXZ6XL4fHkIZL1nmYF8lH6ffR+piEb7sWBWdLRaySrPF4GHsESDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T23:20:01.650737Z","bundle_sha256":"2e464f4260782ae4178f85b4a6b8252ff5a5b8dfe8e11547dc41ec3d54becd40"}}