{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:P2OZKVPXEF5WEJEAOLVWF7ORJF","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":"d26e0750ab08dffc55a363889840dc86d4b0bd3a4cb2f702cf4aede8e1b3811f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-17T18:00:05Z","title_canon_sha256":"707a452c4c9ab2a8f4144dc6d5fb3e59a34b6088ebdc47ca483c617740d01c31"},"schema_version":"1.0","source":{"id":"1810.07703","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.07703","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"arxiv_version","alias_value":"1810.07703v2","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.07703","created_at":"2026-05-17T23:42:58Z"},{"alias_kind":"pith_short_12","alias_value":"P2OZKVPXEF5W","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"P2OZKVPXEF5WEJEA","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"P2OZKVPX","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:840eff69c92ee8f9328a8635e047b49382cd3513a1634a52de6d96dc554b5198","target":"graph","created_at":"2026-05-17T23:42:58Z","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 present a machine-learning approach for estimating galaxy cluster masses from Chandra mock images. We utilize a Convolutional Neural Network (CNN), a deep machine learning tool commonly used in image recognition tasks. The CNN is trained and tested on our sample of 7,896 Chandra X-ray mock observations, which are based on 329 massive clusters from the IllustrisTNG simulation. Our CNN learns from a low resolution spatial distribution of photon counts and does not use spectral information. Despite our simplifying assumption to neglect spectral information, the resulting mass values estimated ","authors_text":"A. Pillepich, A. Vikhlinin, D. Eisenstein, D. Nagai, D. Nelson, F. Marinacci, J. ZuHone, L. Hernquist, M. Ntampaka, M. Vogelsberger, P. Torrey, R. Pakmor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-17T18:00:05Z","title":"A Deep Learning Approach to Galaxy Cluster X-ray Masses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.07703","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":"sha256:5cfdb0da42cc4b02765b6836510f1a14159580307f292e951b6c6ffccc0d0bce","target":"record","created_at":"2026-05-17T23:42:58Z","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":"d26e0750ab08dffc55a363889840dc86d4b0bd3a4cb2f702cf4aede8e1b3811f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-10-17T18:00:05Z","title_canon_sha256":"707a452c4c9ab2a8f4144dc6d5fb3e59a34b6088ebdc47ca483c617740d01c31"},"schema_version":"1.0","source":{"id":"1810.07703","kind":"arxiv","version":2}},"canonical_sha256":"7e9d9555f7217b62248072eb62fdd1495b3572a2391d0ff14b790e03fc2de667","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e9d9555f7217b62248072eb62fdd1495b3572a2391d0ff14b790e03fc2de667","first_computed_at":"2026-05-17T23:42:58.726445Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:58.726445Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q8yLXY+ReUtBsbCqx0n3910meqvpuVQVp3nvwO0bHUgLEvSWbPinl6syTjJHnjL1HdfAVu2hlH2xKXQ71B8fAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:58.727127Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.07703","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5cfdb0da42cc4b02765b6836510f1a14159580307f292e951b6c6ffccc0d0bce","sha256:840eff69c92ee8f9328a8635e047b49382cd3513a1634a52de6d96dc554b5198"],"state_sha256":"006233b60ff64f38062cc9a4085f8235f24dbd07b46f7e92751d8c5b4f9e5fab"}