{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2003:VPWMTZU26DNLIPCA5E3NHZA2JB","short_pith_number":"pith:VPWMTZU2","schema_version":"1.0","canonical_sha256":"abecc9e69af0dab43c40e936d3e41a487b236c1a8b2e08006e03ec0bc7042da7","source":{"kind":"arxiv","id":"astro-ph/0309303","version":2},"attestation_state":"computed","paper":{"title":"Direct constraints on the dark matter self-interaction cross-section from the merging galaxy cluster 1E0657-56","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Univ. of Florida, (3) Univ. Bonn, 4), (4) IKI, 5) ((1) CfA, (5) UCSD), A. H. Gonzalez (2), A. Vikhlinin (1, C. Jones (1), D. Clowe (3), L. David (1), M. Markevitch (1), S. Murray (1), W. Forman (1), W. Tucker (1","submitted_at":"2003-09-11T06:19:24Z","abstract_excerpt":"We compare new maps of the hot gas, dark matter, and galaxies for 1E0657-56, a cluster with a rare, high-velocity merger occurring nearly in the plane of the sky. The X-ray observations reveal a bullet-like gas subcluster just exiting the collision site. A prominent bow shock gives an estimate of the subcluster velocity, 4500 km/s, which lies mostly in the plane of the sky. The optical image shows that the gas lags behind the subcluster galaxies. The weak-lensing mass map reveals a dark matter clump lying ahead of the collisional gas bullet, but coincident with the effectively collisionless ga"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/0309303","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-09-11T06:19:24Z","cross_cats_sorted":[],"title_canon_sha256":"020aeceabe7b91efd743001501ee55946e8b33fcb9151eac0800badb08bbe1a7","abstract_canon_sha256":"d77131321060311f5a85cef7bb6cf1389580ea275ef32af9aeb65f81a841cb87"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:51:38.135703Z","signature_b64":"+vUZQTzVyxmGq941M9frtLqygvqK+I7JGfkmEmHPAakWyiVy89Yp+hxIvVW7rJaGMYIppk6jATR510XBwuFDDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abecc9e69af0dab43c40e936d3e41a487b236c1a8b2e08006e03ec0bc7042da7","last_reissued_at":"2026-07-04T16:51:38.135306Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:51:38.135306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Direct constraints on the dark matter self-interaction cross-section from the merging galaxy cluster 1E0657-56","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Univ. of Florida, (3) Univ. Bonn, 4), (4) IKI, 5) ((1) CfA, (5) UCSD), A. H. Gonzalez (2), A. Vikhlinin (1, C. Jones (1), D. Clowe (3), L. David (1), M. Markevitch (1), S. Murray (1), W. Forman (1), W. Tucker (1","submitted_at":"2003-09-11T06:19:24Z","abstract_excerpt":"We compare new maps of the hot gas, dark matter, and galaxies for 1E0657-56, a cluster with a rare, high-velocity merger occurring nearly in the plane of the sky. The X-ray observations reveal a bullet-like gas subcluster just exiting the collision site. A prominent bow shock gives an estimate of the subcluster velocity, 4500 km/s, which lies mostly in the plane of the sky. The optical image shows that the gas lags behind the subcluster galaxies. The weak-lensing mass map reveals a dark matter clump lying ahead of the collisional gas bullet, but coincident with the effectively collisionless ga"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0309303","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0309303/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0309303","created_at":"2026-07-04T16:51:38.135377+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0309303v2","created_at":"2026-07-04T16:51:38.135377+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0309303","created_at":"2026-07-04T16:51:38.135377+00:00"},{"alias_kind":"pith_short_12","alias_value":"VPWMTZU26DNL","created_at":"2026-07-04T16:51:38.135377+00:00"},{"alias_kind":"pith_short_16","alias_value":"VPWMTZU26DNLIPCA","created_at":"2026-07-04T16:51:38.135377+00:00"},{"alias_kind":"pith_short_8","alias_value":"VPWMTZU2","created_at":"2026-07-04T16:51:38.135377+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":8,"internal_anchor_count":7,"sample":[{"citing_arxiv_id":"2607.06774","citing_title":"Natural Phantom Dark Energy from a $\\mathbb{Z}_N$--Axion","ref_index":67,"is_internal_anchor":true},{"citing_arxiv_id":"2606.26736","citing_title":"Coherent collective response in many-qubit systems for dark matter detection","ref_index":4,"is_internal_anchor":true},{"citing_arxiv_id":"2606.05082","citing_title":"First Constraints on the Ellipticities of Self-Interacting Fermionic Dark Matter Admixed Neutron Stars from Continuous Gravitational-Wave Searches","ref_index":73,"is_internal_anchor":true},{"citing_arxiv_id":"2606.28210","citing_title":"SKAO and Gamma-Ray Synergies","ref_index":113,"is_internal_anchor":true},{"citing_arxiv_id":"2606.04827","citing_title":"Steep Redshift Evolution of the Ionizing Escape Fraction at $z = 5$--$12$: Empirical Constraints and Comparison with Simulations","ref_index":19,"is_internal_anchor":true},{"citing_arxiv_id":"1907.04473","citing_title":"CMB-S4 Science Case, Reference Design, and Project Plan","ref_index":201,"is_internal_anchor":true},{"citing_arxiv_id":"2605.15264","citing_title":"Near-IR Weak-lensing (NIRWL) Measurements in the CANDELS Fields. II. Mass Mapping and Overdensity Characterization","ref_index":210,"is_internal_anchor":true},{"citing_arxiv_id":"2604.14481","citing_title":"Entropy considerations in Many-Body Gravity and General Relativity, and the impact on cosmic inflation","ref_index":45,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB","json":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB.json","graph_json":"https://pith.science/api/pith-number/VPWMTZU26DNLIPCA5E3NHZA2JB/graph.json","events_json":"https://pith.science/api/pith-number/VPWMTZU26DNLIPCA5E3NHZA2JB/events.json","paper":"https://pith.science/paper/VPWMTZU2"},"agent_actions":{"view_html":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB","download_json":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB.json","view_paper":"https://pith.science/paper/VPWMTZU2","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0309303&json=true","fetch_graph":"https://pith.science/api/pith-number/VPWMTZU26DNLIPCA5E3NHZA2JB/graph.json","fetch_events":"https://pith.science/api/pith-number/VPWMTZU26DNLIPCA5E3NHZA2JB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB/action/storage_attestation","attest_author":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB/action/author_attestation","sign_citation":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB/action/citation_signature","submit_replication":"https://pith.science/pith/VPWMTZU26DNLIPCA5E3NHZA2JB/action/replication_record"}},"created_at":"2026-07-04T16:51:38.135377+00:00","updated_at":"2026-07-04T16:51:38.135377+00:00"}