{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GJG6DIWMU7P655KOLKXZZH5YQG","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":"f486152014c6ae11fe43b3e46c9751c1059d311db04d772c97a0ee5a4c70b6d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-18T08:31:42Z","title_canon_sha256":"e69cc7db479c0bc82cde2b388b40d30352d34f7a351c6a082960efaa6d3c0e1b"},"schema_version":"1.0","source":{"id":"1708.05534","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.05534","created_at":"2026-05-18T00:28:14Z"},{"alias_kind":"arxiv_version","alias_value":"1708.05534v1","created_at":"2026-05-18T00:28:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.05534","created_at":"2026-05-18T00:28:14Z"},{"alias_kind":"pith_short_12","alias_value":"GJG6DIWMU7P6","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GJG6DIWMU7P655KO","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GJG6DIWM","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:117ccdca3359780e466c973da4ca5f397bc49c6d52833b8f4edc3d1420b43ee0","target":"graph","created_at":"2026-05-18T00:28:14Z","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 spectacular success of type Ia supernovae (SNe Ia) in SN-cosmology is based on the assumption that their photometric and spectroscopic properties are invariant with redshift. However, this fundamental assumption needs to be tested with observations of high-z SNe Ia. To date, the majority of SNe Ia observed at moderate to large redshifts (0.4 < z < 1.0) are faint, and the resultant analyses are based on observations with modest signal-to-noise ratios that impart a degree of ambiguity in their determined properties. In rare cases however, the Universe offers a helping hand: to date a few SNe","authors_text":"Antonio de Ugarte Postigo, Christa Gall, D. A. Kann, Jens Hjorth, Jonatan Selsing, Lise Christensen, Zach Cano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-18T08:31:42Z","title":"A spectroscopic look at the gravitationally lensed type Ia SN 2016geu at z=0.409"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.05534","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:b88717d6624a43467c54356dea07c01bb9af78bd918915475b697828f9004dfd","target":"record","created_at":"2026-05-18T00:28:14Z","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":"f486152014c6ae11fe43b3e46c9751c1059d311db04d772c97a0ee5a4c70b6d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-08-18T08:31:42Z","title_canon_sha256":"e69cc7db479c0bc82cde2b388b40d30352d34f7a351c6a082960efaa6d3c0e1b"},"schema_version":"1.0","source":{"id":"1708.05534","kind":"arxiv","version":1}},"canonical_sha256":"324de1a2cca7dfeef54e5aaf9c9fb881acf9d2c834da06e243c87a6c6615992e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"324de1a2cca7dfeef54e5aaf9c9fb881acf9d2c834da06e243c87a6c6615992e","first_computed_at":"2026-05-18T00:28:14.635981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:14.635981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O6cChhFOcQknnLGgjAxQhdCbKW+R2PdnYeBhNRF774nO8jAGfCrJz7hU+b0y/k/DoRZUIfd4TN5pKFLg2/IlDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:14.636738Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.05534","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b88717d6624a43467c54356dea07c01bb9af78bd918915475b697828f9004dfd","sha256:117ccdca3359780e466c973da4ca5f397bc49c6d52833b8f4edc3d1420b43ee0"],"state_sha256":"c816ba6a989ea2ed5a19ee143fdb47ce5dcb99891d48b4c8e94baeba17c9690a"}