{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:VWV6JNUKL2IY3WFWEMZX4Y26CT","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":"d7f2ae714bcb64f1bbefc3cd44d0d642e5b08f44876bcbec2d65c170cdb000f6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-08-30T03:15:17Z","title_canon_sha256":"1cf2ad9f75ff2cf3f95c29aa00722390ec8ae8545b5e7dcdd5701ded8e505e15"},"schema_version":"1.0","source":{"id":"2308.15731","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.15731","created_at":"2026-07-05T07:45:48Z"},{"alias_kind":"arxiv_version","alias_value":"2308.15731v1","created_at":"2026-07-05T07:45:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.15731","created_at":"2026-07-05T07:45:48Z"},{"alias_kind":"pith_short_12","alias_value":"VWV6JNUKL2IY","created_at":"2026-07-05T07:45:48Z"},{"alias_kind":"pith_short_16","alias_value":"VWV6JNUKL2IY3WFW","created_at":"2026-07-05T07:45:48Z"},{"alias_kind":"pith_short_8","alias_value":"VWV6JNUK","created_at":"2026-07-05T07:45:48Z"}],"graph_snapshots":[{"event_id":"sha256:10ee3a85f071088a805ea2ce870a84b4e49bf45d13ca791deac6f0007912a72a","target":"graph","created_at":"2026-07-05T07:45:48Z","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/2308.15731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this letter, we propose an improved cosmological model independent method of determining the value of the Hubble constant $H_0$. The method uses unanchored luminosity distances $H_0d_L(z)$ from SN Ia Pantheon data combined with angular diameter distances $d_A(z)$ from a sample of intermediate luminosity radio quasars calibrated as standard rulers. The distance duality relation between $d_L(z)$ and $d_A(z)$, which is robust and independent of any cosmological model, allows to disentangle $H_0$ from such combination. However, the number of redshift matched quasars and SN Ia pairs is small (37","authors_text":"Jieci Wang, Marek Biesiada, Tonghua Liu, Xiyan Yang, Zisheng Zhang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-08-30T03:15:17Z","title":"Measurements of the Hubble constant from combinations of supernovae and radio quasars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.15731","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":"sha256:33b3a5b355501d69df8edbbc5c799c0b2ae966a3cf8ff1ba921286f4e874b71b","target":"record","created_at":"2026-07-05T07:45:48Z","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":"d7f2ae714bcb64f1bbefc3cd44d0d642e5b08f44876bcbec2d65c170cdb000f6","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-08-30T03:15:17Z","title_canon_sha256":"1cf2ad9f75ff2cf3f95c29aa00722390ec8ae8545b5e7dcdd5701ded8e505e15"},"schema_version":"1.0","source":{"id":"2308.15731","kind":"arxiv","version":1}},"canonical_sha256":"adabe4b68a5e918dd8b623337e635e14d6866e5839aa800f56c0f4c3461b59d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"adabe4b68a5e918dd8b623337e635e14d6866e5839aa800f56c0f4c3461b59d4","first_computed_at":"2026-07-05T07:45:48.377299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:45:48.377299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TcErOFobGNeL28gzjFXtzuwPMLSiEkBzBwmsA1e4tMH3Dmz86Gc4QLiJLokCrDPkVAPBSRe6rr999H9aLcDCDw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:45:48.377814Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.15731","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33b3a5b355501d69df8edbbc5c799c0b2ae966a3cf8ff1ba921286f4e874b71b","sha256:10ee3a85f071088a805ea2ce870a84b4e49bf45d13ca791deac6f0007912a72a"],"state_sha256":"3a16893732bba85cc86b996a200f81eee59c24d64a6d873ec54b2553b505f94b"}