{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7U6EWED4FCPOCIKHWDQ2JZ7MG3","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":"9002aef0f6875dd54f5c55dab627b1677916f15671e8aa9789c86950bf07b7e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-03-16T14:02:17Z","title_canon_sha256":"51a2bbbe677f76658a369d4581b4b529e936e4d7974a7191f3a84f064c528878"},"schema_version":"1.0","source":{"id":"1203.3708","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.3708","created_at":"2026-05-18T01:58:06Z"},{"alias_kind":"arxiv_version","alias_value":"1203.3708v1","created_at":"2026-05-18T01:58:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.3708","created_at":"2026-05-18T01:58:06Z"},{"alias_kind":"pith_short_12","alias_value":"7U6EWED4FCPO","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7U6EWED4FCPOCIKH","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7U6EWED4","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:28de29931ada0e88086f0328f06eafcbaaedb7c7c043bf710e07d20b8272cfe0","target":"graph","created_at":"2026-05-18T01:58:06Z","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":"RX J0720.4-3125 is the most peculiar object among a group of seven isolated X-ray pulsars (the so-called \"Magnificent Seven\"), since it shows long-term variations of its spectral and temporal properties on time scales of years. This behaviour was explained by different authors either by free precession (with a seven or fourteen years period) or possibly a glitch that occurred around $\\mathrm{MJD=52866\\pm73 days}$. \n\nWe analysed our most recent XMM-Newton and Chandra observations in order to further monitor the behaviour of this neutron star. With the new data sets, the timing behaviour of RX J","authors_text":"Cor P. de Vries, Frank Haberl, Jacco Vink, Mariano M\\'endez, Markus M. Hohle, Roberto Turolla, Silvia Zane","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-03-16T14:02:17Z","title":"The continued spectral and temporal evolution of RX J0720.4-3125"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.3708","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":"sha256:3ea5024476a08979555c1a39dba646e26893aa62d6b0dcb09da958e33038def8","target":"record","created_at":"2026-05-18T01:58:06Z","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":"9002aef0f6875dd54f5c55dab627b1677916f15671e8aa9789c86950bf07b7e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2012-03-16T14:02:17Z","title_canon_sha256":"51a2bbbe677f76658a369d4581b4b529e936e4d7974a7191f3a84f064c528878"},"schema_version":"1.0","source":{"id":"1203.3708","kind":"arxiv","version":1}},"canonical_sha256":"fd3c4b107c289ee12147b0e1a4e7ec36c178d0dde4aaa780283d419617139a96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd3c4b107c289ee12147b0e1a4e7ec36c178d0dde4aaa780283d419617139a96","first_computed_at":"2026-05-18T01:58:06.652463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:06.652463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bYaLdh89bBHZ7A677V8FiYslU8yoD7xRKo0ypxisMF60y0ZuUB5vQ+XhDivXrRU1EXo2GexR6E735l3raBPqBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:06.652858Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.3708","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ea5024476a08979555c1a39dba646e26893aa62d6b0dcb09da958e33038def8","sha256:28de29931ada0e88086f0328f06eafcbaaedb7c7c043bf710e07d20b8272cfe0"],"state_sha256":"fa2c1aa3df869164592884a71d48f514d197a811e97d06b46ec2d69947373aaa"}