{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:CUPO6NMEZFZO2XJBNKFPMF2WRK","short_pith_number":"pith:CUPO6NME","canonical_record":{"source":{"id":"1604.07221","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-25T12:05:45Z","cross_cats_sorted":[],"title_canon_sha256":"2be5d8ee258ec58b9d21bcadb9f9e4ccd67459ca6a4622d798e7c2b1eeafa6c3","abstract_canon_sha256":"19566e51921f21726fef5cb32aef2d468aab18b0a3c6dbd59e0d76495f241526"},"schema_version":"1.0"},"canonical_sha256":"151eef3584c972ed5d216a8af617568aac206c857f043201eb78391f233e79d1","source":{"kind":"arxiv","id":"1604.07221","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07221","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07221v1","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07221","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"pith_short_12","alias_value":"CUPO6NMEZFZO","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CUPO6NMEZFZO2XJB","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CUPO6NME","created_at":"2026-05-18T12:30:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:CUPO6NMEZFZO2XJBNKFPMF2WRK","target":"record","payload":{"canonical_record":{"source":{"id":"1604.07221","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-25T12:05:45Z","cross_cats_sorted":[],"title_canon_sha256":"2be5d8ee258ec58b9d21bcadb9f9e4ccd67459ca6a4622d798e7c2b1eeafa6c3","abstract_canon_sha256":"19566e51921f21726fef5cb32aef2d468aab18b0a3c6dbd59e0d76495f241526"},"schema_version":"1.0"},"canonical_sha256":"151eef3584c972ed5d216a8af617568aac206c857f043201eb78391f233e79d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:13:47.598382Z","signature_b64":"zUTocHRzgfsIrQ3qta/eal7Uc2d5crBhO6d16LvThLQ3sj8qGKRUzi9GmXsiH6Yvf+M1Y+wTvfk9wDkJVWljCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"151eef3584c972ed5d216a8af617568aac206c857f043201eb78391f233e79d1","last_reissued_at":"2026-05-18T01:13:47.597683Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:13:47.597683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1604.07221","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":"2026-05-18T01:13:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d92Qqvh2WIMlqYh0DQhARbv4mN5S07hFlWI+u3oY4F1p2U6rQxKprzzP9wvxc7C3mY/IxqO0Z9uwWvQMVnv8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:25:28.810069Z"},"content_sha256":"bc65c82f98323c805ce13493523f0da2e36c2088b34a69734346faad0da05db3","schema_version":"1.0","event_id":"sha256:bc65c82f98323c805ce13493523f0da2e36c2088b34a69734346faad0da05db3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:CUPO6NMEZFZO2XJBNKFPMF2WRK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterising uniform star formation efficiencies with marginally-stable galactic disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"D.A. Thilker, G.R. Meurer, M.A. Zwaan, O. Ivy Wong, T.M. Heckman, Z. Zheng","submitted_at":"2016-04-25T12:05:45Z","abstract_excerpt":"We examine the HI-based star formation efficiency (SFE_HI), the ratio of star formation rate to the atomic Hydrogen (HI) mass, in the context of a constant stability star-forming disk model. Our observations of HI-selected galaxies show SFE to be fairly constant (log SFE_HI = -9.65 yr-1 with a dispersion of 0.3 dex) across ~5 orders of magnitude in stellar masses. We present a model to account for this result, whose main principle is that the gas within galaxies forms a uniform stability disk and that stars form within the molecular gas in this disk. We test two versions of the model differing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07221","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":""},"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":"2026-05-18T01:13:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JIKfPGw97S690lIrTWruIX4Kc49bdfss7FG6P8WroMV3/3qYl+2o7DYygNe/yFynDrAMkRSqj8Ilj9krWxxaDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:25:28.810558Z"},"content_sha256":"e0d91c023f313228712867b287c428dc7bef703ea7b233a9cb50741d71a19a45","schema_version":"1.0","event_id":"sha256:e0d91c023f313228712867b287c428dc7bef703ea7b233a9cb50741d71a19a45"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/bundle.json","state_url":"https://pith.science/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/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":"2026-05-25T06:25:28Z","links":{"resolver":"https://pith.science/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK","bundle":"https://pith.science/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/bundle.json","state":"https://pith.science/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CUPO6NMEZFZO2XJBNKFPMF2WRK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:CUPO6NMEZFZO2XJBNKFPMF2WRK","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":"19566e51921f21726fef5cb32aef2d468aab18b0a3c6dbd59e0d76495f241526","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-25T12:05:45Z","title_canon_sha256":"2be5d8ee258ec58b9d21bcadb9f9e4ccd67459ca6a4622d798e7c2b1eeafa6c3"},"schema_version":"1.0","source":{"id":"1604.07221","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.07221","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"arxiv_version","alias_value":"1604.07221v1","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.07221","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"pith_short_12","alias_value":"CUPO6NMEZFZO","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"CUPO6NMEZFZO2XJB","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"CUPO6NME","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:e0d91c023f313228712867b287c428dc7bef703ea7b233a9cb50741d71a19a45","target":"graph","created_at":"2026-05-18T01:13:47Z","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 examine the HI-based star formation efficiency (SFE_HI), the ratio of star formation rate to the atomic Hydrogen (HI) mass, in the context of a constant stability star-forming disk model. Our observations of HI-selected galaxies show SFE to be fairly constant (log SFE_HI = -9.65 yr-1 with a dispersion of 0.3 dex) across ~5 orders of magnitude in stellar masses. We present a model to account for this result, whose main principle is that the gas within galaxies forms a uniform stability disk and that stars form within the molecular gas in this disk. We test two versions of the model differing","authors_text":"D.A. Thilker, G.R. Meurer, M.A. Zwaan, O. Ivy Wong, T.M. Heckman, Z. Zheng","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-25T12:05:45Z","title":"Characterising uniform star formation efficiencies with marginally-stable galactic disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.07221","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:bc65c82f98323c805ce13493523f0da2e36c2088b34a69734346faad0da05db3","target":"record","created_at":"2026-05-18T01:13:47Z","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":"19566e51921f21726fef5cb32aef2d468aab18b0a3c6dbd59e0d76495f241526","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-04-25T12:05:45Z","title_canon_sha256":"2be5d8ee258ec58b9d21bcadb9f9e4ccd67459ca6a4622d798e7c2b1eeafa6c3"},"schema_version":"1.0","source":{"id":"1604.07221","kind":"arxiv","version":1}},"canonical_sha256":"151eef3584c972ed5d216a8af617568aac206c857f043201eb78391f233e79d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"151eef3584c972ed5d216a8af617568aac206c857f043201eb78391f233e79d1","first_computed_at":"2026-05-18T01:13:47.597683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:13:47.597683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zUTocHRzgfsIrQ3qta/eal7Uc2d5crBhO6d16LvThLQ3sj8qGKRUzi9GmXsiH6Yvf+M1Y+wTvfk9wDkJVWljCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:13:47.598382Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.07221","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc65c82f98323c805ce13493523f0da2e36c2088b34a69734346faad0da05db3","sha256:e0d91c023f313228712867b287c428dc7bef703ea7b233a9cb50741d71a19a45"],"state_sha256":"84ad5243c5abfa28f709aea69ac8262a7cda3e051e1aeba6e3d7f1d79c191ecd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OrRJpp97lTaE6+FOs5rIY/HmPo5gmXNj+rDzxrTAnj5UU8BS0yHMLkOY9EZCPeeq6n8Ds13DLclKt6Msbc5IBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T06:25:28.813877Z","bundle_sha256":"efcd29ae3e73ba8f24a8cb23a973873397a5b75dbfd27868f13c2566bad3321b"}}