{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:62CN7BBCWJDGGK2CNQI6N2I6UC","short_pith_number":"pith:62CN7BBC","canonical_record":{"source":{"id":"1411.7548","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-27T11:09:03Z","cross_cats_sorted":[],"title_canon_sha256":"71dc9c22c3075b7403d4afb28c7c67e34688079edaabb804fa0153e9a6bfda69","abstract_canon_sha256":"115adaf722e3df958c4216356d3aea8e505081d5f1166ca0d869773be50f16ae"},"schema_version":"1.0"},"canonical_sha256":"f684df8422b246632b426c11e6e91ea095d0529340498532b7e3a72c7f92df26","source":{"kind":"arxiv","id":"1411.7548","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7548","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7548v2","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7548","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"62CN7BBCWJDG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"62CN7BBCWJDGGK2C","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"62CN7BBC","created_at":"2026-05-18T12:28:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:62CN7BBCWJDGGK2CNQI6N2I6UC","target":"record","payload":{"canonical_record":{"source":{"id":"1411.7548","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-27T11:09:03Z","cross_cats_sorted":[],"title_canon_sha256":"71dc9c22c3075b7403d4afb28c7c67e34688079edaabb804fa0153e9a6bfda69","abstract_canon_sha256":"115adaf722e3df958c4216356d3aea8e505081d5f1166ca0d869773be50f16ae"},"schema_version":"1.0"},"canonical_sha256":"f684df8422b246632b426c11e6e91ea095d0529340498532b7e3a72c7f92df26","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:25.386416Z","signature_b64":"XYq3uGQ/oid0EYPAW/8CkCgHytUj/SaWt7e9xe1SLETfz2wCX5mA8BWCyozahSKvZD22P80gPwzO3Z0t9CQPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f684df8422b246632b426c11e6e91ea095d0529340498532b7e3a72c7f92df26","last_reissued_at":"2026-05-18T01:41:25.385672Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:25.385672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.7548","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":"2026-05-18T01:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WsbpOSdPe1yu1Dnp5mAwUMoOuE0AreixE3N/JJlm/9g3WaMqLH7MrA+FQ9lxFHBH2yyCCtwlENL6g3nZHGcaCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:24:46.471536Z"},"content_sha256":"6702a6dbfc3c8a428b8d74ff4d92168d17b4f778c27bb3f639464c3ad021c290","schema_version":"1.0","event_id":"sha256:6702a6dbfc3c8a428b8d74ff4d92168d17b4f778c27bb3f639464c3ad021c290"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:62CN7BBCWJDGGK2CNQI6N2I6UC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Fields and Galactic Star Formation Rates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Jonathan C. Tan, Sam A. E. G. Falle, Sven Van Loo","submitted_at":"2014-11-27T11:09:03Z","abstract_excerpt":"The regulation of galactic-scale star formation rates (SFRs) is a basic problem for theories of galaxy formation and evolution: which processes are responsible for making observed star formation rates so inefficient compared to maximal rates of gas content divided by dynamical timescale? Here we study the effect of magnetic fields of different strengths on the evolution of giant molecular clouds (GMCs) within a kiloparsec patch of a disk galaxy and resolving scales down to $\\simeq0.5\\:{\\rm{pc}}$. Including an empirically motivated prescription for star formation from dense gas ($n_{\\rm{H}}>10^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7548","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":"2026-05-18T01:41:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zQKKY/DLJa/vtRbX9Ti3D1Yxr/dvSXagTLDjGtsrtLSFM4/ALNPPIiZqcWELGl0ZQj+/rkWQ+pm/Rc6fUSmSAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T08:24:46.472174Z"},"content_sha256":"aeb62bb70a5331b354f10e145fd9e2a678850fcd49977204942ad51be8b070c5","schema_version":"1.0","event_id":"sha256:aeb62bb70a5331b354f10e145fd9e2a678850fcd49977204942ad51be8b070c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/bundle.json","state_url":"https://pith.science/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/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":"2026-05-31T08:24:46Z","links":{"resolver":"https://pith.science/pith/62CN7BBCWJDGGK2CNQI6N2I6UC","bundle":"https://pith.science/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/bundle.json","state":"https://pith.science/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/62CN7BBCWJDGGK2CNQI6N2I6UC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:62CN7BBCWJDGGK2CNQI6N2I6UC","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":"115adaf722e3df958c4216356d3aea8e505081d5f1166ca0d869773be50f16ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-27T11:09:03Z","title_canon_sha256":"71dc9c22c3075b7403d4afb28c7c67e34688079edaabb804fa0153e9a6bfda69"},"schema_version":"1.0","source":{"id":"1411.7548","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.7548","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"arxiv_version","alias_value":"1411.7548v2","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.7548","created_at":"2026-05-18T01:41:25Z"},{"alias_kind":"pith_short_12","alias_value":"62CN7BBCWJDG","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_16","alias_value":"62CN7BBCWJDGGK2C","created_at":"2026-05-18T12:28:16Z"},{"alias_kind":"pith_short_8","alias_value":"62CN7BBC","created_at":"2026-05-18T12:28:16Z"}],"graph_snapshots":[{"event_id":"sha256:aeb62bb70a5331b354f10e145fd9e2a678850fcd49977204942ad51be8b070c5","target":"graph","created_at":"2026-05-18T01:41:25Z","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":"The regulation of galactic-scale star formation rates (SFRs) is a basic problem for theories of galaxy formation and evolution: which processes are responsible for making observed star formation rates so inefficient compared to maximal rates of gas content divided by dynamical timescale? Here we study the effect of magnetic fields of different strengths on the evolution of giant molecular clouds (GMCs) within a kiloparsec patch of a disk galaxy and resolving scales down to $\\simeq0.5\\:{\\rm{pc}}$. Including an empirically motivated prescription for star formation from dense gas ($n_{\\rm{H}}>10^","authors_text":"Jonathan C. Tan, Sam A. E. G. Falle, Sven Van Loo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-27T11:09:03Z","title":"Magnetic Fields and Galactic Star Formation Rates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.7548","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":"sha256:6702a6dbfc3c8a428b8d74ff4d92168d17b4f778c27bb3f639464c3ad021c290","target":"record","created_at":"2026-05-18T01:41:25Z","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":"115adaf722e3df958c4216356d3aea8e505081d5f1166ca0d869773be50f16ae","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-11-27T11:09:03Z","title_canon_sha256":"71dc9c22c3075b7403d4afb28c7c67e34688079edaabb804fa0153e9a6bfda69"},"schema_version":"1.0","source":{"id":"1411.7548","kind":"arxiv","version":2}},"canonical_sha256":"f684df8422b246632b426c11e6e91ea095d0529340498532b7e3a72c7f92df26","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f684df8422b246632b426c11e6e91ea095d0529340498532b7e3a72c7f92df26","first_computed_at":"2026-05-18T01:41:25.385672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:25.385672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XYq3uGQ/oid0EYPAW/8CkCgHytUj/SaWt7e9xe1SLETfz2wCX5mA8BWCyozahSKvZD22P80gPwzO3Z0t9CQPDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:25.386416Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.7548","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6702a6dbfc3c8a428b8d74ff4d92168d17b4f778c27bb3f639464c3ad021c290","sha256:aeb62bb70a5331b354f10e145fd9e2a678850fcd49977204942ad51be8b070c5"],"state_sha256":"cdfd1307b131ec259058afe209ac615cf842f5fb09bc5111b19d7da217b3d7f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MAao/Er3qlaVL+Yg3rgLPtsWtw/WeuJfIYhJMjNC2jY6/GzthrxCFWYbpK8ZOtEQ5P2lRUFyn/A3ki4IOxhmDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T08:24:46.474808Z","bundle_sha256":"874527e17dab0407411390b96395d83c3ae113a1e4a543799516ed56a2c38e63"}}