{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:FCCXDB7PXK4CVOMYEI7XWLFOJR","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":"16897bbe51c26818f6b5182fee92fe149372720cb3051d6f45d32d84ab92f792","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-24T19:38:24Z","title_canon_sha256":"170c77187bf1b62424bce64d2434af256c25f4320228c2bb605e5a0d4e1945dc"},"schema_version":"1.0","source":{"id":"2108.10929","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.10929","created_at":"2026-07-05T03:57:11Z"},{"alias_kind":"arxiv_version","alias_value":"2108.10929v2","created_at":"2026-07-05T03:57:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.10929","created_at":"2026-07-05T03:57:11Z"},{"alias_kind":"pith_short_12","alias_value":"FCCXDB7PXK4C","created_at":"2026-07-05T03:57:11Z"},{"alias_kind":"pith_short_16","alias_value":"FCCXDB7PXK4CVOMY","created_at":"2026-07-05T03:57:11Z"},{"alias_kind":"pith_short_8","alias_value":"FCCXDB7P","created_at":"2026-07-05T03:57:11Z"}],"graph_snapshots":[{"event_id":"sha256:c9b0cc7ddeecf25dc677ba8432b548b00d0109794cc5119fb1f287ec49910afd","target":"graph","created_at":"2026-07-05T03:57:11Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2108.10929/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study the jet in the hard state of the accreting black-hole binary MAXI J1820+070. From the available radio-to-optical spectral and variability data, we put strong constraints on the jet parameters. We find while it is not possible to uniquely determine the jet Lorentz factor from the spectral and variability properties alone, we can estimate the jet opening angle ($\\approx 1.5\\pm1^\\circ$), the distance at which the jet starts emitting synchrotron radiation ($\\sim 3 \\times10^{10}$cm), and the magnetic field strength there ($\\sim$10$^4$G), with relatively low uncertainty, as they depend weak","authors_text":"Alexandra J. Tetarenko, Andrzej A. Zdziarski, Marek Sikora","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-24T19:38:24Z","title":"Jet Parameters in the Black-Hole X-Ray Binary MAXI J1820+070"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.10929","kind":"arxiv","version":2},"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:bc824a85780d1787bf5598127124d58b601477e862f1d6d148fc58e40837bbc4","target":"record","created_at":"2026-07-05T03:57:11Z","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":"16897bbe51c26818f6b5182fee92fe149372720cb3051d6f45d32d84ab92f792","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-08-24T19:38:24Z","title_canon_sha256":"170c77187bf1b62424bce64d2434af256c25f4320228c2bb605e5a0d4e1945dc"},"schema_version":"1.0","source":{"id":"2108.10929","kind":"arxiv","version":2}},"canonical_sha256":"28857187efbab82ab998223f7b2cae4c43bba7a19b9cfd05c2903bb61167f678","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28857187efbab82ab998223f7b2cae4c43bba7a19b9cfd05c2903bb61167f678","first_computed_at":"2026-07-05T03:57:11.159021Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:57:11.159021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PoGXHBpGHHc5Y8GFRSagBlrG3Ypem1flMayDNVg9xNnb+Tm950k/j1WiMt1sW0bA9xk30wbso35Dtrwm8Q7lDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:57:11.159489Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.10929","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc824a85780d1787bf5598127124d58b601477e862f1d6d148fc58e40837bbc4","sha256:c9b0cc7ddeecf25dc677ba8432b548b00d0109794cc5119fb1f287ec49910afd"],"state_sha256":"c177ab505151605dd283c7e46a4c766fc37fcfc5cb165eb40b5174eae3795869"}