{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:DOAU223X5TGGKT7442GPATBDES","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":"0281f5690cee10bcdab1464447b768d634efa31255009a0749fae2ae08c47279","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-06-13T19:02:34Z","title_canon_sha256":"2e018bd1d03626853f38a6e9c3936c5e403e8f12fd10a7c22aed80417e9896db"},"schema_version":"1.0","source":{"id":"astro-ph/9706135","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9706135","created_at":"2026-05-18T01:40:17Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9706135v1","created_at":"2026-05-18T01:40:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9706135","created_at":"2026-05-18T01:40:17Z"},{"alias_kind":"pith_short_12","alias_value":"DOAU223X5TGG","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"DOAU223X5TGGKT74","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"DOAU223X","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:8d7ec4b61cf31f082540e57f649e39bbfc4d4c1f3d49351c81b9ea4e4d7b5411","target":"graph","created_at":"2026-05-18T01:40:17Z","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 data from different epochs in 1978, 1987-1991 and 1996 from the black-hole candidate 4U1630-47. For the first time we present almost complete coverage of the outbursts which started in 1987, 1988 and 1996. We find that the outburst behaviour of 4U1630-47 is more complex than previously realized. The source shows outbursts with durations on the order of ~100-200 days and sometimes intervals of long-term X-ray activity.\n  The relatively short outbursts which occurred in 1987 and 1996 exhibited different colour behaviour: the outburst in 1987 showed softening of the X-ray spectrum, whe","authors_text":"A.N. Parmar, E. Kuulkers, L.R. Cominsky, R.K. Sood, S. Kitamoto","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1997-06-13T19:02:34Z","title":"Complex outburst behaviour from the black-hole candidate 4U 1630-47"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9706135","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":"sha256:4349fb5d86bc11082ed9d24b0227adf4082c3f9f0ec48cb5636ad0bb4b8c2928","target":"record","created_at":"2026-05-18T01:40:17Z","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":"0281f5690cee10bcdab1464447b768d634efa31255009a0749fae2ae08c47279","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1997-06-13T19:02:34Z","title_canon_sha256":"2e018bd1d03626853f38a6e9c3936c5e403e8f12fd10a7c22aed80417e9896db"},"schema_version":"1.0","source":{"id":"astro-ph/9706135","kind":"arxiv","version":1}},"canonical_sha256":"1b814d6b77eccc654ffce68cf04c23248aee4e38140f920d0997394b2cbbb968","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b814d6b77eccc654ffce68cf04c23248aee4e38140f920d0997394b2cbbb968","first_computed_at":"2026-05-18T01:40:17.325137Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:17.325137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"q+p7m6SBWjmru4uiMWpkQz6qrQtK8OuP0Ig06xYRTXAQQHkiys8mP6cAq+r+EkRBe4esi8gn3BsqqpBXlMikDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:17.326033Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9706135","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4349fb5d86bc11082ed9d24b0227adf4082c3f9f0ec48cb5636ad0bb4b8c2928","sha256:8d7ec4b61cf31f082540e57f649e39bbfc4d4c1f3d49351c81b9ea4e4d7b5411"],"state_sha256":"ed95121254f2dce0f1e4edb8a590409c9f7cf67254b389b6537db6737dd9deb5"}