{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CPSO7CQC6MMVH56G2MXKS5533O","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":"c67f99b60354c5cc160eea63d2702b93113d3095981cb9c707cabe237343d477","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-12-11T18:13:59Z","title_canon_sha256":"956c2749cf0ad1a40320f387d599f7580fe444d12ef02069bdcb73d33c8d9311"},"schema_version":"1.0","source":{"id":"1812.04587","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.04587","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"arxiv_version","alias_value":"1812.04587v3","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.04587","created_at":"2026-05-17T23:52:51Z"},{"alias_kind":"pith_short_12","alias_value":"CPSO7CQC6MMV","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CPSO7CQC6MMVH56G","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CPSO7CQC","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:15e9df908d293cc5e43e0c6fc346702a1d8ead28377ff8a0c69c31de2a7be0f8","target":"graph","created_at":"2026-05-17T23:52:51Z","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 implement a steady, one-dimensional flow model for the X-ray jet of Centaurus A in which entrainment of stellar mass loss is the primary cause of dissipation. Using over 260 ks of new and archival Chandra/ACIS data, we have constrained the temperature, density and pressure distributions of gas in the central regions of the host galaxy of Centaurus A, and so the pressure throughout the length of its jet. The model is constrained by the observed profiles of pressure and jet width, and conserves matter and energy, enabling us to estimate jet velocities, and hence all the other flow properties.","authors_text":"Bradford T. Snios, Christine Jones, David J. Stark, Diana M. Worrall, Eileen T. Meyer, Iain McDonald, Marina Rejkuba, Mark Birkinshaw, Martin J. Hardcastle, Paul E. J. Nulsen, Ralph P. Kraft, Sarka Wykes, Thomas W. Jones, William R. Forman","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-12-11T18:13:59Z","title":"A 1D fluid model of the Centaurus A jet"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.04587","kind":"arxiv","version":3},"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":"sha256:4f3b9b50f99db98fb6ec769939e13d25e5c48c1efc2acdacbf9a4399d6b06859","target":"record","created_at":"2026-05-17T23:52:51Z","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":"c67f99b60354c5cc160eea63d2702b93113d3095981cb9c707cabe237343d477","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-12-11T18:13:59Z","title_canon_sha256":"956c2749cf0ad1a40320f387d599f7580fe444d12ef02069bdcb73d33c8d9311"},"schema_version":"1.0","source":{"id":"1812.04587","kind":"arxiv","version":3}},"canonical_sha256":"13e4ef8a02f31953f7c6d32ea977bbdbbcf336c616bee243348fc24d4ccc0ffe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13e4ef8a02f31953f7c6d32ea977bbdbbcf336c616bee243348fc24d4ccc0ffe","first_computed_at":"2026-05-17T23:52:51.346949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:51.346949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p7rHmtR3ltqgFXTld/Gg3Gs+XLUzyHS1fzyA7DHml8TKstsUDVw43P9vZa97BzgwGjdVwKQoc3udjksno/lGAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:51.347576Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.04587","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f3b9b50f99db98fb6ec769939e13d25e5c48c1efc2acdacbf9a4399d6b06859","sha256:15e9df908d293cc5e43e0c6fc346702a1d8ead28377ff8a0c69c31de2a7be0f8"],"state_sha256":"897b1446e88eb20e1df428c9318e7e2c700bf7267229eda7c7f1e1d9e9b6b7e9"}