{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:AIV3N6U6HFZMYBMGOYIINPXNQD","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":"a6f6628aba1f21b634798b304798146abbf74bf5f46dc61fde89f1cb1cd27c46","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-09-02T10:21:44Z","title_canon_sha256":"5a038c8d4f08b33d0ecabe0638f419f8014263359788995f053db0c97298e4a1"},"schema_version":"1.0","source":{"id":"2509.02169","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2509.02169","created_at":"2026-07-05T12:03:33Z"},{"alias_kind":"arxiv_version","alias_value":"2509.02169v1","created_at":"2026-07-05T12:03:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2509.02169","created_at":"2026-07-05T12:03:33Z"},{"alias_kind":"pith_short_12","alias_value":"AIV3N6U6HFZM","created_at":"2026-07-05T12:03:33Z"},{"alias_kind":"pith_short_16","alias_value":"AIV3N6U6HFZMYBMG","created_at":"2026-07-05T12:03:33Z"},{"alias_kind":"pith_short_8","alias_value":"AIV3N6U6","created_at":"2026-07-05T12:03:33Z"}],"graph_snapshots":[{"event_id":"sha256:60524654bae318f036c39cb4207ac12a8b2ce4ede6de17917b0dc7c30921d741","target":"graph","created_at":"2026-07-05T12:03:33Z","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/2509.02169/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We conducted long-term monitoring of the doubly imaged gravitationally lensed quasar SDSS J1001+5027 consisting of spectro-photometric observations separated by $\\sim$120 days (time delay between both quasar images), as well as test and auxiliary data. This monitoring approach allowed us to reliably find a strong microlensing-induced chromatic variation of the quasar continuum in the period 2022$-$2025. The ongoing microlensing event has caused the delay-corrected spectral flux ratio in 2025 to have a dramatic changing look, opening the door to very promising observations of the system in the ","authors_text":"Luis J. Goicoechea, Vyacheslav N. Shalyapin","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-09-02T10:21:44Z","title":"SDSS J1001+5027: Strong microlensing-induced chromatic variation caught in the act"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.02169","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:de8db4e4a7094f9c88891217708e62c1c9d4a6bea0341254dde09bcce026f7ce","target":"record","created_at":"2026-07-05T12:03:33Z","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":"a6f6628aba1f21b634798b304798146abbf74bf5f46dc61fde89f1cb1cd27c46","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-09-02T10:21:44Z","title_canon_sha256":"5a038c8d4f08b33d0ecabe0638f419f8014263359788995f053db0c97298e4a1"},"schema_version":"1.0","source":{"id":"2509.02169","kind":"arxiv","version":1}},"canonical_sha256":"022bb6fa9e3972cc0586761086beed80e4f34924c98060adf1636faba0967caa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"022bb6fa9e3972cc0586761086beed80e4f34924c98060adf1636faba0967caa","first_computed_at":"2026-07-05T12:03:33.308360Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T12:03:33.308360Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bXaywgJeQvXHC10y97GMYP8Bqe1AQ93LvNVhIZ8/t9vTAKhL/FILZWu5vSe+RqR8EZ4IsApStbpvpy0qiaMKAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T12:03:33.308838Z","signed_message":"canonical_sha256_bytes"},"source_id":"2509.02169","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de8db4e4a7094f9c88891217708e62c1c9d4a6bea0341254dde09bcce026f7ce","sha256:60524654bae318f036c39cb4207ac12a8b2ce4ede6de17917b0dc7c30921d741"],"state_sha256":"5c08b87b86f9f816b1bf24ce5b62a6a3b347c2ef9d396fa075e493c48b84cba3"}