{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:LDJEPSECND23U3GQF4BVH7CB5J","short_pith_number":"pith:LDJEPSEC","canonical_record":{"source":{"id":"1809.02134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-06T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"e6ad5758533bda88128b0717cb36552bbc184a1a41d9b70bb6f267c951e3faaf","abstract_canon_sha256":"09e5662067851c0bc4a6da11218c16c2efe78bb8d917bab76f748ead28128ed5"},"schema_version":"1.0"},"canonical_sha256":"58d247c88268f5ba6cd02f0353fc41ea573dd7dc1d9038a32803b007c39a7dd6","source":{"kind":"arxiv","id":"1809.02134","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02134","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02134v1","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02134","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"pith_short_12","alias_value":"LDJEPSECND23","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LDJEPSECND23U3GQ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LDJEPSEC","created_at":"2026-05-18T12:32:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:LDJEPSECND23U3GQF4BVH7CB5J","target":"record","payload":{"canonical_record":{"source":{"id":"1809.02134","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-06T18:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"e6ad5758533bda88128b0717cb36552bbc184a1a41d9b70bb6f267c951e3faaf","abstract_canon_sha256":"09e5662067851c0bc4a6da11218c16c2efe78bb8d917bab76f748ead28128ed5"},"schema_version":"1.0"},"canonical_sha256":"58d247c88268f5ba6cd02f0353fc41ea573dd7dc1d9038a32803b007c39a7dd6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:45.302794Z","signature_b64":"p8CkRNwElm6+OsEVxZB94gznnsYMg2IVN2V9s0wL3sDXoIXSxOU1RXJt6BzHSb4612b3CCRhOcefD6U82J0sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"58d247c88268f5ba6cd02f0353fc41ea573dd7dc1d9038a32803b007c39a7dd6","last_reissued_at":"2026-05-18T00:03:45.302308Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:45.302308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.02134","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":"2026-05-18T00:03:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hkSdWR4F4aX6chn+Q65RSAPSdweZx1gbaJwUBhL/3wgR9Fui4kJeMZtkXpuX6Mr0z8yyS5PjCQU6kURfxBNeCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:12:48.416914Z"},"content_sha256":"14ad6a745d35e1e316d8ccdde96d6fd89ad2b014034aa02656aefa55500c7aa3","schema_version":"1.0","event_id":"sha256:14ad6a745d35e1e316d8ccdde96d6fd89ad2b014034aa02656aefa55500c7aa3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:LDJEPSECND23U3GQF4BVH7CB5J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Recent Growth History of the Fornax Cluster Derived from Simultaneous Sloshing and Gas Stripping: Simulating the Infall of NGC 1404","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alex Sheardown, Christine Jones, Elke Roediger, Eugene Churazov, John A. ZuHone, Paul E. J. Nulsen, Ralph P. Kraft, Thomas Fish, William R. Forman, Yuanyuan Su","submitted_at":"2018-09-06T18:00:00Z","abstract_excerpt":"We derive the recent growth history of the Fornax Cluster, in particular the recent infall of the giant elliptical galaxy NGC 1404. We show, using a simple cluster minor merger simulation tailored to Fornax and NGC 1404, that a second or more likely third encounter between the two reproduces all main merger features observed in both objects; we firmly exclude a first infall scenario. Our simulations reveal a consistent picture: NGC 1404 passed by NGC 1399 about 1.1 - 1.3 Gyrs ago from the NE to the SW and is now almost at the point of its next encounter from the S. This scenario explains the s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02134","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":"2026-05-18T00:03:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y9FcRN/NAKi6C/ZHu4l3zDRvVPfVhlvfd4XIlDqAlVN+il6TZB+Egp75tXZc1NCMP0X1h0z+qXhi7pA42UfeBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:12:48.417308Z"},"content_sha256":"0cc3b9f663f84d051230eb74ff3e48cd5ac63cd85efe270707939e619d66e825","schema_version":"1.0","event_id":"sha256:0cc3b9f663f84d051230eb74ff3e48cd5ac63cd85efe270707939e619d66e825"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LDJEPSECND23U3GQF4BVH7CB5J/bundle.json","state_url":"https://pith.science/pith/LDJEPSECND23U3GQF4BVH7CB5J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LDJEPSECND23U3GQF4BVH7CB5J/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":"2026-05-25T16:12:48Z","links":{"resolver":"https://pith.science/pith/LDJEPSECND23U3GQF4BVH7CB5J","bundle":"https://pith.science/pith/LDJEPSECND23U3GQF4BVH7CB5J/bundle.json","state":"https://pith.science/pith/LDJEPSECND23U3GQF4BVH7CB5J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LDJEPSECND23U3GQF4BVH7CB5J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:LDJEPSECND23U3GQF4BVH7CB5J","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":"09e5662067851c0bc4a6da11218c16c2efe78bb8d917bab76f748ead28128ed5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-06T18:00:00Z","title_canon_sha256":"e6ad5758533bda88128b0717cb36552bbc184a1a41d9b70bb6f267c951e3faaf"},"schema_version":"1.0","source":{"id":"1809.02134","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.02134","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"arxiv_version","alias_value":"1809.02134v1","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02134","created_at":"2026-05-18T00:03:45Z"},{"alias_kind":"pith_short_12","alias_value":"LDJEPSECND23","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"LDJEPSECND23U3GQ","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"LDJEPSEC","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:0cc3b9f663f84d051230eb74ff3e48cd5ac63cd85efe270707939e619d66e825","target":"graph","created_at":"2026-05-18T00:03:45Z","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 derive the recent growth history of the Fornax Cluster, in particular the recent infall of the giant elliptical galaxy NGC 1404. We show, using a simple cluster minor merger simulation tailored to Fornax and NGC 1404, that a second or more likely third encounter between the two reproduces all main merger features observed in both objects; we firmly exclude a first infall scenario. Our simulations reveal a consistent picture: NGC 1404 passed by NGC 1399 about 1.1 - 1.3 Gyrs ago from the NE to the SW and is now almost at the point of its next encounter from the S. This scenario explains the s","authors_text":"Alex Sheardown, Christine Jones, Elke Roediger, Eugene Churazov, John A. ZuHone, Paul E. J. Nulsen, Ralph P. Kraft, Thomas Fish, William R. Forman, Yuanyuan Su","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-06T18:00:00Z","title":"The Recent Growth History of the Fornax Cluster Derived from Simultaneous Sloshing and Gas Stripping: Simulating the Infall of NGC 1404"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02134","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":"sha256:14ad6a745d35e1e316d8ccdde96d6fd89ad2b014034aa02656aefa55500c7aa3","target":"record","created_at":"2026-05-18T00:03:45Z","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":"09e5662067851c0bc4a6da11218c16c2efe78bb8d917bab76f748ead28128ed5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-09-06T18:00:00Z","title_canon_sha256":"e6ad5758533bda88128b0717cb36552bbc184a1a41d9b70bb6f267c951e3faaf"},"schema_version":"1.0","source":{"id":"1809.02134","kind":"arxiv","version":1}},"canonical_sha256":"58d247c88268f5ba6cd02f0353fc41ea573dd7dc1d9038a32803b007c39a7dd6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"58d247c88268f5ba6cd02f0353fc41ea573dd7dc1d9038a32803b007c39a7dd6","first_computed_at":"2026-05-18T00:03:45.302308Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:45.302308Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p8CkRNwElm6+OsEVxZB94gznnsYMg2IVN2V9s0wL3sDXoIXSxOU1RXJt6BzHSb4612b3CCRhOcefD6U82J0sCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:45.302794Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.02134","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14ad6a745d35e1e316d8ccdde96d6fd89ad2b014034aa02656aefa55500c7aa3","sha256:0cc3b9f663f84d051230eb74ff3e48cd5ac63cd85efe270707939e619d66e825"],"state_sha256":"1349037ca8ec04e28f80f176cb9eaf302b6e758542ca7f7c497722d05949ffed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9GiTGUMklyu151EHA81BnV1LolE4TDe9AhukqZeQpppZOBCWTh2UdYPE86CYt84v9ir/JIMO6JEjFJYVjtR3Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:12:48.419795Z","bundle_sha256":"8b00e33efccd83291270d237c3f4e4109259ba3dad98ef3ffbe88280a2391198"}}