{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IS4DOV2GFOXKVYAD7WAKXDJAZZ","short_pith_number":"pith:IS4DOV2G","canonical_record":{"source":{"id":"1405.1137","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-05-06T03:13:25Z","cross_cats_sorted":[],"title_canon_sha256":"3a5d60d9fbe7742353f66d7c97e3a8b5c3fd79487c1351e3b8f4703cf3b1fd7b","abstract_canon_sha256":"640f7cae811fa0474952bea4a9c98b3ddef424e4968f26ecdf58109f9c974fd5"},"schema_version":"1.0"},"canonical_sha256":"44b83757462baeaae003fd80ab8d20ce681edacc061501d563d0a09e0fc16bc1","source":{"kind":"arxiv","id":"1405.1137","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.1137","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"arxiv_version","alias_value":"1405.1137v2","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.1137","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"pith_short_12","alias_value":"IS4DOV2GFOXK","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IS4DOV2GFOXKVYAD","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IS4DOV2G","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IS4DOV2GFOXKVYAD7WAKXDJAZZ","target":"record","payload":{"canonical_record":{"source":{"id":"1405.1137","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-05-06T03:13:25Z","cross_cats_sorted":[],"title_canon_sha256":"3a5d60d9fbe7742353f66d7c97e3a8b5c3fd79487c1351e3b8f4703cf3b1fd7b","abstract_canon_sha256":"640f7cae811fa0474952bea4a9c98b3ddef424e4968f26ecdf58109f9c974fd5"},"schema_version":"1.0"},"canonical_sha256":"44b83757462baeaae003fd80ab8d20ce681edacc061501d563d0a09e0fc16bc1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:17.484024Z","signature_b64":"qMuCX13SJ5JZixOtENHL0k+GJSqWZmDO8U0flfS5GZFt6Xh3fKyaMSY2PZ8LEzV5i1tITtQOBamx7n1YWxCVAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44b83757462baeaae003fd80ab8d20ce681edacc061501d563d0a09e0fc16bc1","last_reissued_at":"2026-05-18T01:43:17.483396Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:17.483396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1405.1137","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":"2026-05-18T01:43:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3zgIUcnu4bGW5WrITuyXLdzl3blxln3z76s/wi05W0bxxoeM847Z+X+OkoK2EpPsO9cP+kXsfR3hXyiUXRMMCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:19:48.062893Z"},"content_sha256":"7a58fefedfcddcf59759afabc527f681b139bdba31ee46b84dd9325d4dc0e61f","schema_version":"1.0","event_id":"sha256:7a58fefedfcddcf59759afabc527f681b139bdba31ee46b84dd9325d4dc0e61f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IS4DOV2GFOXKVYAD7WAKXDJAZZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Relations of stellar mass between electron temperature-based metallicity of star-forming galaxies in a wide mass range","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Francois Hammer, Gang Zhao, Guiping Ruan, Hector Flores, Li Zhou, WeiBin Shi, Xiaowei Liu, Xu Shao, Yanchun Liang, Yong Zhang","submitted_at":"2014-05-06T03:13:25Z","abstract_excerpt":"We select 947 star-forming galaxies from SDSS-DR7 with\n  [O~{\\sc iii}]$\\lambda$4363 emission lines\n  detected at a signal-to-noise {ratio }larger than 5$\\sigma$.\n  Their electron temperatures and direct oxygen abundances are {then }determined. {W}e\n  compare the results from different methods. $t_2${, the} electron\n  temperature in {the }low ionization region{,} estimated from $t_3${, that} in {the }high ionization region{,} {is} compared {using} three analysis\n  relations between $t_2-t_3${. These} show obvious differences, which\n  result in some different ionic oxygen abundances. The results"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1137","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":"2026-05-18T01:43:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lx0i5MVp79DIA/WOFg/uJqvxHuR3ZB9cEFRsc2gepoiWp+j2eD67ko55QXpBg6YYi/QIkWNMYrdCXYw1dAhlBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T13:19:48.063520Z"},"content_sha256":"12ff83058e4d0f28616e80812e73bfd6b5d2f6a29c2d88d42f3054c252c9831d","schema_version":"1.0","event_id":"sha256:12ff83058e4d0f28616e80812e73bfd6b5d2f6a29c2d88d42f3054c252c9831d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/bundle.json","state_url":"https://pith.science/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/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":"2026-05-30T13:19:48Z","links":{"resolver":"https://pith.science/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ","bundle":"https://pith.science/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/bundle.json","state":"https://pith.science/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IS4DOV2GFOXKVYAD7WAKXDJAZZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IS4DOV2GFOXKVYAD7WAKXDJAZZ","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":"640f7cae811fa0474952bea4a9c98b3ddef424e4968f26ecdf58109f9c974fd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-05-06T03:13:25Z","title_canon_sha256":"3a5d60d9fbe7742353f66d7c97e3a8b5c3fd79487c1351e3b8f4703cf3b1fd7b"},"schema_version":"1.0","source":{"id":"1405.1137","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.1137","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"arxiv_version","alias_value":"1405.1137v2","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.1137","created_at":"2026-05-18T01:43:17Z"},{"alias_kind":"pith_short_12","alias_value":"IS4DOV2GFOXK","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IS4DOV2GFOXKVYAD","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IS4DOV2G","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:12ff83058e4d0f28616e80812e73bfd6b5d2f6a29c2d88d42f3054c252c9831d","target":"graph","created_at":"2026-05-18T01:43:17Z","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 select 947 star-forming galaxies from SDSS-DR7 with\n  [O~{\\sc iii}]$\\lambda$4363 emission lines\n  detected at a signal-to-noise {ratio }larger than 5$\\sigma$.\n  Their electron temperatures and direct oxygen abundances are {then }determined. {W}e\n  compare the results from different methods. $t_2${, the} electron\n  temperature in {the }low ionization region{,} estimated from $t_3${, that} in {the }high ionization region{,} {is} compared {using} three analysis\n  relations between $t_2-t_3${. These} show obvious differences, which\n  result in some different ionic oxygen abundances. The results","authors_text":"Francois Hammer, Gang Zhao, Guiping Ruan, Hector Flores, Li Zhou, WeiBin Shi, Xiaowei Liu, Xu Shao, Yanchun Liang, Yong Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-05-06T03:13:25Z","title":"Relations of stellar mass between electron temperature-based metallicity of star-forming galaxies in a wide mass range"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1137","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":"sha256:7a58fefedfcddcf59759afabc527f681b139bdba31ee46b84dd9325d4dc0e61f","target":"record","created_at":"2026-05-18T01:43:17Z","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":"640f7cae811fa0474952bea4a9c98b3ddef424e4968f26ecdf58109f9c974fd5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-05-06T03:13:25Z","title_canon_sha256":"3a5d60d9fbe7742353f66d7c97e3a8b5c3fd79487c1351e3b8f4703cf3b1fd7b"},"schema_version":"1.0","source":{"id":"1405.1137","kind":"arxiv","version":2}},"canonical_sha256":"44b83757462baeaae003fd80ab8d20ce681edacc061501d563d0a09e0fc16bc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44b83757462baeaae003fd80ab8d20ce681edacc061501d563d0a09e0fc16bc1","first_computed_at":"2026-05-18T01:43:17.483396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:17.483396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qMuCX13SJ5JZixOtENHL0k+GJSqWZmDO8U0flfS5GZFt6Xh3fKyaMSY2PZ8LEzV5i1tITtQOBamx7n1YWxCVAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:17.484024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.1137","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7a58fefedfcddcf59759afabc527f681b139bdba31ee46b84dd9325d4dc0e61f","sha256:12ff83058e4d0f28616e80812e73bfd6b5d2f6a29c2d88d42f3054c252c9831d"],"state_sha256":"7c7ce1f1ed62f015d292a49592ab849b55a705b04bd729bd47eebe0f98c924e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X0M6q/pd0SKWym58AvZ015Q+5EvIY6A7oZTNqxPEasFCoO6YELICzjK/gpj3D/nkbsLRIz0dEKaLIe9ls2W+Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T13:19:48.066675Z","bundle_sha256":"7d241dc43c25ada33cb5eb6f105eea7ae40dac8004be2f8e61d36d9668e3f90f"}}