{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:7O3Q2LGPPCJHLZ4GKT4PI2D4TK","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":"cc74ae4c3e54a472dc330b86c1ee0f6453fe88f8ad40af9b2950c699f672981b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-06T11:11:41Z","title_canon_sha256":"898827aa1c46e1bbbe97ec69c439772ed94b5aee65fafabcb5c02304c31de5ab"},"schema_version":"1.0","source":{"id":"1306.1374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.1374","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"arxiv_version","alias_value":"1306.1374v1","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.1374","created_at":"2026-05-18T01:49:32Z"},{"alias_kind":"pith_short_12","alias_value":"7O3Q2LGPPCJH","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_16","alias_value":"7O3Q2LGPPCJHLZ4G","created_at":"2026-05-18T12:27:36Z"},{"alias_kind":"pith_short_8","alias_value":"7O3Q2LGP","created_at":"2026-05-18T12:27:36Z"}],"graph_snapshots":[{"event_id":"sha256:1e0776e9fc6796410f01036226ac10eb66458f577b6f95cc00d672d5d0936c1d","target":"graph","created_at":"2026-05-18T01:49:32Z","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 have further followed the evolution of the orbital and physical properties of G2, the object currently falling toward the massive black hole in the Galactic Center on a near-radial orbit. New, very sensitive data were taken in April 2013 with NACO and SINFONI at the ESO VLT . The 'head' of G2 continues to be stretched ever further along the orbit in position-velocity space. A fraction of its emission appears to be already emerging on the blue-shifted side of the orbit, past pericenter approach. Ionized gas in the head is now stretched over more than 15,000 Schwarzschild radii RS around the ","authors_text":"Alessandro Ballone, Andreas Burkert, Frank Eisenhauer, Marc Schartmann, Oliver Pfuhl, Reinhard Genzel, Stefan Gillessen, Thomas Ott, Tobias K Fritz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-06T11:11:41Z","title":"Pericenter passage of the gas cloud G2 in the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.1374","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":"sha256:7e5469ea266dba56bc58ab5094d728587aa32ebe193fd0ccf9750fe3b75c52a2","target":"record","created_at":"2026-05-18T01:49:32Z","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":"cc74ae4c3e54a472dc330b86c1ee0f6453fe88f8ad40af9b2950c699f672981b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-06-06T11:11:41Z","title_canon_sha256":"898827aa1c46e1bbbe97ec69c439772ed94b5aee65fafabcb5c02304c31de5ab"},"schema_version":"1.0","source":{"id":"1306.1374","kind":"arxiv","version":1}},"canonical_sha256":"fbb70d2ccf789275e78654f8f4687c9aa135d9bbab38863b110a2bdc81dcf06b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fbb70d2ccf789275e78654f8f4687c9aa135d9bbab38863b110a2bdc81dcf06b","first_computed_at":"2026-05-18T01:49:32.056580Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:32.056580Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rkukXZ6w0mMMgEBRO8tyYdmpZHcwuGzai4SnAsdO06CxfVE0OC8mjAxNc0OurYLvuexK6V6m+V9trc3uQ9c5Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:32.057064Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.1374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7e5469ea266dba56bc58ab5094d728587aa32ebe193fd0ccf9750fe3b75c52a2","sha256:1e0776e9fc6796410f01036226ac10eb66458f577b6f95cc00d672d5d0936c1d"],"state_sha256":"2e470cc062064f0287a6617ded500729c636feead2683a48ad4d7ca1bd215338"}