{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MAYQZV44FCLSPPY2W4QMMA2GNE","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":"e4aa888f45144acb2c91027b93ffc2e4ce32237c8024320fcec8fc5329a499dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-14T21:00:09Z","title_canon_sha256":"17447185b04f92be767b31f32a1734e003498b44fd3da51e249ffbb5d07cea7e"},"schema_version":"1.0","source":{"id":"1612.04830","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04830","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04830v1","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04830","created_at":"2026-05-18T00:51:41Z"},{"alias_kind":"pith_short_12","alias_value":"MAYQZV44FCLS","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"MAYQZV44FCLSPPY2","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"MAYQZV44","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:31125aa639c4ac4291c0e5dea0d5d4e372a1fbd072ec3f577ed85e844cccb477","target":"graph","created_at":"2026-05-18T00:51:41Z","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":"We present a radio-quiet quasar at z=0.237 discovered \"turning on\" by the intermediate Palomar Transient Factory (iPTF). The transient, iPTF 16bco, was detected by iPTF in the nucleus of a galaxy with an archival SDSS spectrum with weak narrow-line emission characteristic of a low-ionization emission line region (LINER). Our follow-up spectra show the dramatic appearance of broad Balmer lines and a power-law continuum characteristic of a luminous (L_bol~10^45 erg/s) type 1 quasar 12 years later. Our photometric monitoring with PTF from 2009-2012, and serendipitous X-ray observations from the X","authors_text":"A.K.H. Kong, C.C. Ngeow, C. Fremling, J.D. Neill, K. Mooley, Lin Yan, N. Blagorodnova, P.C. Yu, P.E. Nugent, P. Wozniak, S.B. Cenko, S. Gezari, S.R. Kulkarni, T. Hung, T.M. Cantwell, Y. Cao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-14T21:00:09Z","title":"iPTF Discovery of the Rapid \"Turn On\" of a Luminous Quasar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04830","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:fca231709ecc3dc75fcbe429d3ee5396d8e34cad0390003188b09641a58d815a","target":"record","created_at":"2026-05-18T00:51:41Z","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":"e4aa888f45144acb2c91027b93ffc2e4ce32237c8024320fcec8fc5329a499dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-12-14T21:00:09Z","title_canon_sha256":"17447185b04f92be767b31f32a1734e003498b44fd3da51e249ffbb5d07cea7e"},"schema_version":"1.0","source":{"id":"1612.04830","kind":"arxiv","version":1}},"canonical_sha256":"60310cd79c289727bf1ab720c603466927b14953dbef5a5c1af9d35db3362885","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"60310cd79c289727bf1ab720c603466927b14953dbef5a5c1af9d35db3362885","first_computed_at":"2026-05-18T00:51:41.460525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:41.460525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GDeZsd8ZCEDvptTGvnA7dkkAUOpExERN83Ufh5SPwax4xgrpGLDZJ0P4W2GSlhCviNGK3OlAfimYrlBlRxOPDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:41.460948Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.04830","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fca231709ecc3dc75fcbe429d3ee5396d8e34cad0390003188b09641a58d815a","sha256:31125aa639c4ac4291c0e5dea0d5d4e372a1fbd072ec3f577ed85e844cccb477"],"state_sha256":"84edab302cb82026607366081a3e8173296e69197f5dcf487cea41152939e3f6"}