{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DH6SLZDQYJ5Z4KJ7FXFVQXEC7K","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":"684a746c8bf1209ec20ebb9e3af92bc97f036a59036faf4537e9ef53df230842","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-20T21:47:40Z","title_canon_sha256":"e5798532d696e9ebd78ee829c258168c6ab628bc68f2c536e3a31215fb6b717d"},"schema_version":"1.0","source":{"id":"1005.3847","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1005.3847","created_at":"2026-05-18T02:07:15Z"},{"alias_kind":"arxiv_version","alias_value":"1005.3847v2","created_at":"2026-05-18T02:07:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3847","created_at":"2026-05-18T02:07:15Z"},{"alias_kind":"pith_short_12","alias_value":"DH6SLZDQYJ5Z","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DH6SLZDQYJ5Z4KJ7","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DH6SLZDQ","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:30e6498b7ee94a1addcd8f199cf5f71d37848ade018768bae2885e22dc01a3ae","target":"graph","created_at":"2026-05-18T02:07:15Z","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 Bullet Cluster is a massive galaxy cluster at z=0.297 undergoing a major supersonic (Mach 3) merger event. Using Spitzer 24um images, IRAC data, optical imaging, and optical spectroscopy, we present the global star formation rate (SFR) of this unique cluster. Using a 90% spectroscopically complete sample of 37 non-AGN MIPS confirmed cluster members out to R<1.7 Mpc, and the Rieke et al. (2009) relation to convert from 24um flux to SFR, we calculate an integrated obscured SFR of 267 Msolar/yr and a specific star formation rate of 28 Msolar/yr per 10^14 Msolar. The cluster mass normalized in","authors_text":"Anthony H. Gonzalez, Dennis Zaritsky, Douglas Clowe, Maxim Markevitch, Sun Mi Chung","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-20T21:47:40Z","title":"Star Formation in the Bullet Cluster I: The Infrared Luminosity Function and Star Formation Rate"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3847","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":"sha256:92e4da910250d5dccd53f8e2bfb60c8f18ba6867f31e3bf834ab61050f1640fb","target":"record","created_at":"2026-05-18T02:07:15Z","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":"684a746c8bf1209ec20ebb9e3af92bc97f036a59036faf4537e9ef53df230842","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-05-20T21:47:40Z","title_canon_sha256":"e5798532d696e9ebd78ee829c258168c6ab628bc68f2c536e3a31215fb6b717d"},"schema_version":"1.0","source":{"id":"1005.3847","kind":"arxiv","version":2}},"canonical_sha256":"19fd25e470c27b9e293f2dcb585c82fa98e5f4edb7341ec3fb5a9e045dc6e95a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19fd25e470c27b9e293f2dcb585c82fa98e5f4edb7341ec3fb5a9e045dc6e95a","first_computed_at":"2026-05-18T02:07:15.997795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:07:15.997795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jKFHheB96mjm0u8J+W7WCRGlCteRoupMTcTryWJkTAM29iw54hCG2HBQKwtpt8t50uEpHypHYhGvriZyP5wmBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:07:15.998416Z","signed_message":"canonical_sha256_bytes"},"source_id":"1005.3847","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:92e4da910250d5dccd53f8e2bfb60c8f18ba6867f31e3bf834ab61050f1640fb","sha256:30e6498b7ee94a1addcd8f199cf5f71d37848ade018768bae2885e22dc01a3ae"],"state_sha256":"06d3034d381f8bc9e362ea1a4c41dce9412fd41b1e607b971613c59bbd88d687"}