{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:4OAFASOA6DPOMNB2LNJE7YSJVD","short_pith_number":"pith:4OAFASOA","canonical_record":{"source":{"id":"1403.5812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-03-23T22:46:08Z","cross_cats_sorted":[],"title_canon_sha256":"9927563af5869901ce1172fdf9bc21ffc51ee6810a7da2f3f27983f81357fa32","abstract_canon_sha256":"a91252e6df1bd0d42d18188238c8a923bdafca06baa07f11e2634761b44ab546"},"schema_version":"1.0"},"canonical_sha256":"e3805049c0f0dee6343a5b524fe249a8e25524e2456035c86bc71210c9aa9d19","source":{"kind":"arxiv","id":"1403.5812","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5812","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5812v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5812","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"4OAFASOA6DPO","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4OAFASOA6DPOMNB2","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4OAFASOA","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:4OAFASOA6DPOMNB2LNJE7YSJVD","target":"record","payload":{"canonical_record":{"source":{"id":"1403.5812","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-03-23T22:46:08Z","cross_cats_sorted":[],"title_canon_sha256":"9927563af5869901ce1172fdf9bc21ffc51ee6810a7da2f3f27983f81357fa32","abstract_canon_sha256":"a91252e6df1bd0d42d18188238c8a923bdafca06baa07f11e2634761b44ab546"},"schema_version":"1.0"},"canonical_sha256":"e3805049c0f0dee6343a5b524fe249a8e25524e2456035c86bc71210c9aa9d19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:52.126239Z","signature_b64":"P+1wSYzf8vJsXY9LN9u+sFRwW9SAwZoPERDMfvqUW4SMdEMgx8ioQyD4Yd19Pd7wgXfcsSrUzay3vgaa3fefDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3805049c0f0dee6343a5b524fe249a8e25524e2456035c86bc71210c9aa9d19","last_reissued_at":"2026-05-18T01:43:52.125575Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:52.125575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.5812","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":"2026-05-18T01:43:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XEaieXvQHFoGdJn/lMKCXOhllAR0utzXo+YypqzI16tV1a9nQ16+IP0unkVqx0BgYU2iieOtDVEHhKEoHQOIBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:56:38.723867Z"},"content_sha256":"632c2ca30fd15ec830802e38159b95ad7a06a83b38a16e4253e5e35fc7555caf","schema_version":"1.0","event_id":"sha256:632c2ca30fd15ec830802e38159b95ad7a06a83b38a16e4253e5e35fc7555caf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:4OAFASOA6DPOMNB2LNJE7YSJVD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Comparison of X-ray and Optical Emission in Cassiopeia A","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Daniel J. Patnaude, Robert A. Fesen","submitted_at":"2014-03-23T22:46:08Z","abstract_excerpt":"Broadband optical and narrowband Si XIII X-ray images of the young Galactic supernova remnant Cas A obtained over several decades are used to investigate spatial and temporal correlations on both large and small scales. The data consist of optical and near infrared ground-based and Hubble Space Telescope images taken between 1951 and 2011, and X-ray images from Einstein, ROSAT, and Chandra taken between 1979 and 2013. We find weak spatial correlations between the remnant's emission features on large scales, but several cases of good optical/X-ray correlations on small scales for features which"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5812","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":"2026-05-18T01:43:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"looIcEDxJ8g0WM53gyk6ZvXzlEK+A0dM2O/l2up9p7NFSgyge/Wk/TykjO9HKzendLYILLjsit91wKdC3L8rBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T15:56:38.724278Z"},"content_sha256":"1c078e01a2b207d50dc4a7ab70288c2d89e1dfffe1012715df7fd3087e373a7b","schema_version":"1.0","event_id":"sha256:1c078e01a2b207d50dc4a7ab70288c2d89e1dfffe1012715df7fd3087e373a7b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/bundle.json","state_url":"https://pith.science/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/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":"2026-06-04T15:56:38Z","links":{"resolver":"https://pith.science/pith/4OAFASOA6DPOMNB2LNJE7YSJVD","bundle":"https://pith.science/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/bundle.json","state":"https://pith.science/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4OAFASOA6DPOMNB2LNJE7YSJVD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4OAFASOA6DPOMNB2LNJE7YSJVD","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":"a91252e6df1bd0d42d18188238c8a923bdafca06baa07f11e2634761b44ab546","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-03-23T22:46:08Z","title_canon_sha256":"9927563af5869901ce1172fdf9bc21ffc51ee6810a7da2f3f27983f81357fa32"},"schema_version":"1.0","source":{"id":"1403.5812","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.5812","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"arxiv_version","alias_value":"1403.5812v1","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.5812","created_at":"2026-05-18T01:43:52Z"},{"alias_kind":"pith_short_12","alias_value":"4OAFASOA6DPO","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4OAFASOA6DPOMNB2","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4OAFASOA","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:1c078e01a2b207d50dc4a7ab70288c2d89e1dfffe1012715df7fd3087e373a7b","target":"graph","created_at":"2026-05-18T01:43:52Z","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":"Broadband optical and narrowband Si XIII X-ray images of the young Galactic supernova remnant Cas A obtained over several decades are used to investigate spatial and temporal correlations on both large and small scales. The data consist of optical and near infrared ground-based and Hubble Space Telescope images taken between 1951 and 2011, and X-ray images from Einstein, ROSAT, and Chandra taken between 1979 and 2013. We find weak spatial correlations between the remnant's emission features on large scales, but several cases of good optical/X-ray correlations on small scales for features which","authors_text":"Daniel J. Patnaude, Robert A. Fesen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-03-23T22:46:08Z","title":"A Comparison of X-ray and Optical Emission in Cassiopeia A"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.5812","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":"sha256:632c2ca30fd15ec830802e38159b95ad7a06a83b38a16e4253e5e35fc7555caf","target":"record","created_at":"2026-05-18T01:43:52Z","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":"a91252e6df1bd0d42d18188238c8a923bdafca06baa07f11e2634761b44ab546","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-03-23T22:46:08Z","title_canon_sha256":"9927563af5869901ce1172fdf9bc21ffc51ee6810a7da2f3f27983f81357fa32"},"schema_version":"1.0","source":{"id":"1403.5812","kind":"arxiv","version":1}},"canonical_sha256":"e3805049c0f0dee6343a5b524fe249a8e25524e2456035c86bc71210c9aa9d19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3805049c0f0dee6343a5b524fe249a8e25524e2456035c86bc71210c9aa9d19","first_computed_at":"2026-05-18T01:43:52.125575Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:52.125575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P+1wSYzf8vJsXY9LN9u+sFRwW9SAwZoPERDMfvqUW4SMdEMgx8ioQyD4Yd19Pd7wgXfcsSrUzay3vgaa3fefDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:52.126239Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.5812","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:632c2ca30fd15ec830802e38159b95ad7a06a83b38a16e4253e5e35fc7555caf","sha256:1c078e01a2b207d50dc4a7ab70288c2d89e1dfffe1012715df7fd3087e373a7b"],"state_sha256":"c1ef5362c5feb202b3d435aa806233d80dc35bc908afe6943462be954aaae2fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TobBvFIJar7izoE78Q2R99FXi8T6J11rE7K8XpVcH8LPR1xSacfR1+GVLsrb+SJAsE8uRXMkX4DqD+odeto4AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T15:56:38.726332Z","bundle_sha256":"f1114f68f887ab36a287bff22ea12c2004cec7bbf195fdd5ede303c4dc18770c"}}