{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:2MZ2FN3C2IUDFWFEQ6OVXIF5ZM","short_pith_number":"pith:2MZ2FN3C","canonical_record":{"source":{"id":"1401.1209","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-06T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"6391fa8244aef672197951290b454d18cf1195b7d9cd7c8096373faca6ef2fcf","abstract_canon_sha256":"d0bece9d94d5060bff7e4be7d33b4921d34e41b21a1f3a89d70fc2a1c393a999"},"schema_version":"1.0"},"canonical_sha256":"d333a2b762d22832d8a4879d5ba0bdcb05948d91347cfb0dff1ef8123a1a0e9c","source":{"kind":"arxiv","id":"1401.1209","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.1209","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"arxiv_version","alias_value":"1401.1209v2","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.1209","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"pith_short_12","alias_value":"2MZ2FN3C2IUD","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2MZ2FN3C2IUDFWFE","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2MZ2FN3C","created_at":"2026-05-18T12:28:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:2MZ2FN3C2IUDFWFEQ6OVXIF5ZM","target":"record","payload":{"canonical_record":{"source":{"id":"1401.1209","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-06T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"6391fa8244aef672197951290b454d18cf1195b7d9cd7c8096373faca6ef2fcf","abstract_canon_sha256":"d0bece9d94d5060bff7e4be7d33b4921d34e41b21a1f3a89d70fc2a1c393a999"},"schema_version":"1.0"},"canonical_sha256":"d333a2b762d22832d8a4879d5ba0bdcb05948d91347cfb0dff1ef8123a1a0e9c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:33.517780Z","signature_b64":"M3D/rn1PwBwO/J05YaKQEGBmOvlChPQYupfG+tqmQo2picwew5B4w02qQ+bwGiD5dkM6Aq0nOpauLA030RUWCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d333a2b762d22832d8a4879d5ba0bdcb05948d91347cfb0dff1ef8123a1a0e9c","last_reissued_at":"2026-05-18T01:45:33.517117Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:33.517117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.1209","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":"2026-05-18T01:45:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ycQPHgocweTdx+rCfWDpae/soUBZBCkRj1Ap+43z9dQCPG8Bb9uwKXZVm3dIj23I0Mnj6JjGS0RKg6GvjebDDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:04:04.194485Z"},"content_sha256":"8447cfe74cb89cedfbbf4d03f961188409fde85ab57f0df9e495fe8e75fee696","schema_version":"1.0","event_id":"sha256:8447cfe74cb89cedfbbf4d03f961188409fde85ab57f0df9e495fe8e75fee696"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:2MZ2FN3C2IUDFWFEQ6OVXIF5ZM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What is the Physical Origin of Strong Lya Emission? I. Demographics of Lya Emitter Structures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Kazuhiro Shimasaku, Kimihiko Nakajima, Masami Ouchi, Masao Mori, Masayuki Umemura, Suraphong Yuma, Takatoshi Shibuya, Takuya Hashimoto","submitted_at":"2014-01-06T21:00:02Z","abstract_excerpt":"We present the results of structure analyses for a large sample of 426 Lya emitters (LAEs) at z~2.2 that are observed with HST/ACS and WFC3-IR by deep extra-galactic legacy surveys. We confirm that the merger fraction and the average ellipticity of LAE's stellar component are 10-30 % and 0.4-0.6, respectively, that are comparable with previous study results. We successfully identify that some LAEs have a spatial offset between Lya and stellar-continuum emission peaks, d_Lya, by ~2.5-4 kpc beyond our statistical errors. To uncover the physical origin of strong Lya emission found in LAEs, we inv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.1209","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":""},"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":"2026-05-18T01:45:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ukw5oCRe4ezlQ8wCN4KzwrLEhhLI7rBoIhVLcrbV7TSPxD2BvGuQGlAmlupWk34Yep1X11Yahpo0Yd7dvJyeBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:04:04.194835Z"},"content_sha256":"4ca8b50bc9fa259485b354da62c412f841dc9369324d79eb477df0ad3ee8d707","schema_version":"1.0","event_id":"sha256:4ca8b50bc9fa259485b354da62c412f841dc9369324d79eb477df0ad3ee8d707"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/bundle.json","state_url":"https://pith.science/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/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":"2026-06-03T22:04:04Z","links":{"resolver":"https://pith.science/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM","bundle":"https://pith.science/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/bundle.json","state":"https://pith.science/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2MZ2FN3C2IUDFWFEQ6OVXIF5ZM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:2MZ2FN3C2IUDFWFEQ6OVXIF5ZM","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":"d0bece9d94d5060bff7e4be7d33b4921d34e41b21a1f3a89d70fc2a1c393a999","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-06T21:00:02Z","title_canon_sha256":"6391fa8244aef672197951290b454d18cf1195b7d9cd7c8096373faca6ef2fcf"},"schema_version":"1.0","source":{"id":"1401.1209","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.1209","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"arxiv_version","alias_value":"1401.1209v2","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.1209","created_at":"2026-05-18T01:45:33Z"},{"alias_kind":"pith_short_12","alias_value":"2MZ2FN3C2IUD","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_16","alias_value":"2MZ2FN3C2IUDFWFE","created_at":"2026-05-18T12:28:11Z"},{"alias_kind":"pith_short_8","alias_value":"2MZ2FN3C","created_at":"2026-05-18T12:28:11Z"}],"graph_snapshots":[{"event_id":"sha256:4ca8b50bc9fa259485b354da62c412f841dc9369324d79eb477df0ad3ee8d707","target":"graph","created_at":"2026-05-18T01:45:33Z","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"},"paper":{"abstract_excerpt":"We present the results of structure analyses for a large sample of 426 Lya emitters (LAEs) at z~2.2 that are observed with HST/ACS and WFC3-IR by deep extra-galactic legacy surveys. We confirm that the merger fraction and the average ellipticity of LAE's stellar component are 10-30 % and 0.4-0.6, respectively, that are comparable with previous study results. We successfully identify that some LAEs have a spatial offset between Lya and stellar-continuum emission peaks, d_Lya, by ~2.5-4 kpc beyond our statistical errors. To uncover the physical origin of strong Lya emission found in LAEs, we inv","authors_text":"Kazuhiro Shimasaku, Kimihiko Nakajima, Masami Ouchi, Masao Mori, Masayuki Umemura, Suraphong Yuma, Takatoshi Shibuya, Takuya Hashimoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-06T21:00:02Z","title":"What is the Physical Origin of Strong Lya Emission? I. Demographics of Lya Emitter Structures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.1209","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":"sha256:8447cfe74cb89cedfbbf4d03f961188409fde85ab57f0df9e495fe8e75fee696","target":"record","created_at":"2026-05-18T01:45:33Z","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":"d0bece9d94d5060bff7e4be7d33b4921d34e41b21a1f3a89d70fc2a1c393a999","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-06T21:00:02Z","title_canon_sha256":"6391fa8244aef672197951290b454d18cf1195b7d9cd7c8096373faca6ef2fcf"},"schema_version":"1.0","source":{"id":"1401.1209","kind":"arxiv","version":2}},"canonical_sha256":"d333a2b762d22832d8a4879d5ba0bdcb05948d91347cfb0dff1ef8123a1a0e9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d333a2b762d22832d8a4879d5ba0bdcb05948d91347cfb0dff1ef8123a1a0e9c","first_computed_at":"2026-05-18T01:45:33.517117Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:33.517117Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M3D/rn1PwBwO/J05YaKQEGBmOvlChPQYupfG+tqmQo2picwew5B4w02qQ+bwGiD5dkM6Aq0nOpauLA030RUWCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:33.517780Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.1209","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8447cfe74cb89cedfbbf4d03f961188409fde85ab57f0df9e495fe8e75fee696","sha256:4ca8b50bc9fa259485b354da62c412f841dc9369324d79eb477df0ad3ee8d707"],"state_sha256":"708bf9412ca21a6169de3e1d1f487c610c67805b05a1abcadf978b98e5cf7b32"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JwzjJloVuzoXA+b0tXntNGCYK3tQVda4h9U2qrqKB5WCy/6MPvO+QlOsAsHu0omXP8T2vQk5xr45uVWGpK+JBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:04:04.196751Z","bundle_sha256":"71dea814ca4ceb19e5bdb30ff42afd022961495419b2cacf258b03ed733ddc11"}}