{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:SFJPTFOHRJTN5JMMWUSYCLR2PH","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":"8447ebfb8285b7abe7d12f13f88f2ee29415bfa06f31c506d6231e1fbf061f2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-29T20:25:37Z","title_canon_sha256":"ff7024ea87087c5fa0d590520a754d0c3dbf11747ec43536addfcca3454728d9"},"schema_version":"1.0","source":{"id":"1605.09059","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1605.09059","created_at":"2026-05-18T00:44:01Z"},{"alias_kind":"arxiv_version","alias_value":"1605.09059v2","created_at":"2026-05-18T00:44:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1605.09059","created_at":"2026-05-18T00:44:01Z"},{"alias_kind":"pith_short_12","alias_value":"SFJPTFOHRJTN","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"SFJPTFOHRJTN5JMM","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"SFJPTFOH","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:a8d10994a886d415bcd7c56b5c981d76ff6895cd7b1a260ce7f50bfd592d0fba","target":"graph","created_at":"2026-05-18T00:44:01Z","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 the first direct ejecta velocity measurements of Tycho's supernova remnant (SNR). Chandra's high angular resolution images reveal a patchy structure of radial velocities in the ejecta that can be separated into distinct redshifted, blueshifted, and low velocity ejecta clumps or blobs. The typical velocities of the redshifted and blueshifted blobs are <~ 7,800 km/s and <~ 5,000 km/s, respectively. The highest velocity blobs are located near the center, while the low velocity ones appear near the edge as expected for a generally spherical expansion. Systematic uncertainty on the veloc","authors_text":"2, (2) ISAS/JAXA, 3), (3) Rutgers University), John P. Hughes (3) ((1) Tokyo Metropolitan University, Toshiki Sato (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-29T20:25:37Z","title":"Direct Ejecta Velocity Measurements of Tycho's Supernova Remnant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.09059","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":"sha256:8792b724708de2dec95a233fceba2e3db93a84adbb0b64e5b212101b3f8481cc","target":"record","created_at":"2026-05-18T00:44:01Z","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":"8447ebfb8285b7abe7d12f13f88f2ee29415bfa06f31c506d6231e1fbf061f2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-05-29T20:25:37Z","title_canon_sha256":"ff7024ea87087c5fa0d590520a754d0c3dbf11747ec43536addfcca3454728d9"},"schema_version":"1.0","source":{"id":"1605.09059","kind":"arxiv","version":2}},"canonical_sha256":"9152f995c78a66dea58cb525812e3a79de428b4e5c7aa17e69d442430b48652f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9152f995c78a66dea58cb525812e3a79de428b4e5c7aa17e69d442430b48652f","first_computed_at":"2026-05-18T00:44:01.006714Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:01.006714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cVC2tU0K0w6QvzVO8r9sBAP4/gydp4vLsSfE9ECuurX64244pwQpeGXMUfv17LwpxG5bvjpNMRoLzFfTlwMHDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:01.007404Z","signed_message":"canonical_sha256_bytes"},"source_id":"1605.09059","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8792b724708de2dec95a233fceba2e3db93a84adbb0b64e5b212101b3f8481cc","sha256:a8d10994a886d415bcd7c56b5c981d76ff6895cd7b1a260ce7f50bfd592d0fba"],"state_sha256":"203bf21deb0bf046a561e80bacaebf2df360a548d9550f3cd6a69ec3958314ce"}