{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3XGXLWN7M6NICPCJSSCDY5GAKJ","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":"790c23438b23f33a73b70cec4d28156d713512c0ad3ef08e81afc5753e4f8c26","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-26T18:00:01Z","title_canon_sha256":"0e1e4dce93e50304dc2d43eace566e9957ea899d73aeeabcbd657fb9d858b51e"},"schema_version":"1.0","source":{"id":"1704.08255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08255","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08255v1","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08255","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"3XGXLWN7M6NI","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3XGXLWN7M6NICPCJ","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3XGXLWN7","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:5749e7b7cf3a2d335811fb573d3e6ddb3e3568f9b631320899d8812c1b90094e","target":"graph","created_at":"2026-05-18T00:43:25Z","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":"The nature of ultraluminous X-ray sources (ULXs) -- off-nuclear extra-galactic sources with luminosity, assumed isotropic, $\\gtrsim 10^{39}$ erg s$^{-1}$ -- is still debated. One possibility is that ULXs are stellar black holes accreting beyond the Eddington limit. This view has been recently reinforced by the discovery of ultrafast outflows at $\\sim 0.1$-$0.2c$ in the high resolution spectra of a handful of ULXs, as predicted by models of supercritical accretion discs. Under the assumption that ULXs are powered by super-Eddington accretion onto black holes, we use the properties of the observ","authors_text":"2), (2) Kavli Institute for Cosmology, Andrew C. Fabian (1) ((1) Institute of Astronomy, Ciro Pinto (1), Davide Fiacconi (1, Dominic J. Walton (1), University of Cambridge, University of Cambridge)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-26T18:00:01Z","title":"Constraining the mass of accreting black holes in ultraluminous X-ray sources with ultrafast outflows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08255","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:d62c1c32e7c12b0d5304597c847d060c7be741be85b2a52577f2f93dc5cdd2c3","target":"record","created_at":"2026-05-18T00:43:25Z","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":"790c23438b23f33a73b70cec4d28156d713512c0ad3ef08e81afc5753e4f8c26","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-04-26T18:00:01Z","title_canon_sha256":"0e1e4dce93e50304dc2d43eace566e9957ea899d73aeeabcbd657fb9d858b51e"},"schema_version":"1.0","source":{"id":"1704.08255","kind":"arxiv","version":1}},"canonical_sha256":"ddcd75d9bf679a813c4994843c74c0526c04d1c4498a84fe76db4d325dde134e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ddcd75d9bf679a813c4994843c74c0526c04d1c4498a84fe76db4d325dde134e","first_computed_at":"2026-05-18T00:43:25.365343Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:25.365343Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u7nv6hHz/+YJFLzlHGbWEwNaPUs72C4gC5UuFyKJ+n2oj+jK5kiIq8SkI43Gx5KP0FAtGtMR636wx+6fID1tDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:25.365983Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.08255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d62c1c32e7c12b0d5304597c847d060c7be741be85b2a52577f2f93dc5cdd2c3","sha256:5749e7b7cf3a2d335811fb573d3e6ddb3e3568f9b631320899d8812c1b90094e"],"state_sha256":"16f32b4ec3b1b0a8a51eb218553411db1e42f8d50e8b4d9782a7a22ccceefec7"}