{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FMT54ZZDG2RSYLQQPYZTNMSWLZ","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":"b8d4712ae9c4154965626dbc31188221eb7bd1ccf482d3128e4f02ac630d42b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-02T09:18:57Z","title_canon_sha256":"eaae6a3aba31a598a9312389005b92e3ecc3a195df1757742468a81ba2504ddc"},"schema_version":"1.0","source":{"id":"1905.00632","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.00632","created_at":"2026-05-17T23:47:11Z"},{"alias_kind":"arxiv_version","alias_value":"1905.00632v1","created_at":"2026-05-17T23:47:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.00632","created_at":"2026-05-17T23:47:11Z"},{"alias_kind":"pith_short_12","alias_value":"FMT54ZZDG2RS","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FMT54ZZDG2RSYLQQ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FMT54ZZD","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:4e06edcf499f9e1952d359c6ddd9571cf513cb3753786c97708e995013519b5d","target":"graph","created_at":"2026-05-17T23:47:11Z","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 results of a 7-12 GHz phased-array study of the Galactic center magnetar J1745-2900 with the Karl G. Jansky Very Large Array (VLA). Using data from two 6.5 hour observations from September 2014, we find that the average profile is comprised of several distinct components at these epochs and is stable over $\\sim$day timescales and $\\sim$GHz frequencies. Comparison with additional phased VLA data at 8.7 GHz shows significant profile changes on longer timescales. The average profile at 7-12 GHz is dominated by the jitter of relatively narrow pulses. The pulses in each of the four m","authors_text":"A. T. Deller, B. J. Butler, G. C. Bower, J. M. Cordes, P. Demorest, R. S. Wharton, S. Chatterjee, S. M. Ransom, T. J. W. Lazio","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-02T09:18:57Z","title":"VLA Observations of Single Pulses from the Galactic Center Magnetar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.00632","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":"sha256:5c38ae7ebb763c5a9169944c704985550a9c47d754fd7a4afeb8e8a913788ebf","target":"record","created_at":"2026-05-17T23:47:11Z","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":"b8d4712ae9c4154965626dbc31188221eb7bd1ccf482d3128e4f02ac630d42b5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-05-02T09:18:57Z","title_canon_sha256":"eaae6a3aba31a598a9312389005b92e3ecc3a195df1757742468a81ba2504ddc"},"schema_version":"1.0","source":{"id":"1905.00632","kind":"arxiv","version":1}},"canonical_sha256":"2b27de672336a32c2e107e3336b2565e79168f8a765c6e367759365475a6a62c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b27de672336a32c2e107e3336b2565e79168f8a765c6e367759365475a6a62c","first_computed_at":"2026-05-17T23:47:11.385370Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:11.385370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PiFyqqNXPbeki4lUh+ujPAtVBt9Okfk9N/Zzi4drjSLH29FTJzl7Tor62IV3WPhh6bNmJAtHsgepynmwLdsnAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:11.385764Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.00632","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c38ae7ebb763c5a9169944c704985550a9c47d754fd7a4afeb8e8a913788ebf","sha256:4e06edcf499f9e1952d359c6ddd9571cf513cb3753786c97708e995013519b5d"],"state_sha256":"93eaa20e84880494f687fdd4d738766554cc0f98687705bd7cee09696030a357"}