{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3KWAATLDYUFIXROLALQVCVNSHG","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":"d8a6eb04ef9d10071dadf3704b0fe2a026e1ba09d543a3f9f3edde4ec3591e62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-09T15:35:56Z","title_canon_sha256":"b7ff75e3d09daa6d358a0e68afab58bf83cfad319e89826688f59b1c2ef84808"},"schema_version":"1.0","source":{"id":"2104.04436","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.04436","created_at":"2026-07-05T03:28:14Z"},{"alias_kind":"arxiv_version","alias_value":"2104.04436v1","created_at":"2026-07-05T03:28:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.04436","created_at":"2026-07-05T03:28:14Z"},{"alias_kind":"pith_short_12","alias_value":"3KWAATLDYUFI","created_at":"2026-07-05T03:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"3KWAATLDYUFIXROL","created_at":"2026-07-05T03:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"3KWAATLD","created_at":"2026-07-05T03:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:9928efe522154605914561503f6287cc503a2259ce18062472fc5d6a793304a8","target":"graph","created_at":"2026-07-05T03:28:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.04436/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The $\\gamma$-ray emission properties of CTD 135, a typical compact symmetric object (CSO), are investigated with $\\sim$11-year Fermi/LAT observations. We show that it has bright and significantly variable GeV emission, with the $\\gamma$-ray luminosity of $L_{\\gamma}\\sim10^{47}$ erg s$^{-1}$ and a variation index of TS$_{\\rm var}=1002$. A quasi-periodic oscillation (QPO) with a periodicity of $\\sim$460 days is detected in the global 95\\% false-alarm level. These $\\gamma$-ray emission features are similar to that of blazars. Its broadband spectral energy distribution (SED) can be attributed to t","authors_text":"En-Wei Liang (GXU), Hai-Ming Zhang (NJU), Jin Zhang (BIT), Ting-Feng Yi (YNNU), Xing Yang (GXU), Ying-Ying Gan (GXU), Yun-Feng Liang (GXU)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-09T15:35:56Z","title":"Highly Variable $\\gamma$-Ray Emission of CTD 135 and Implications for its Compact Symmetric Structure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.04436","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:e6c8bf18182068eb783d196a8be1e9db89058cebc739f727b731f79e7d960934","target":"record","created_at":"2026-07-05T03:28:14Z","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":"d8a6eb04ef9d10071dadf3704b0fe2a026e1ba09d543a3f9f3edde4ec3591e62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-04-09T15:35:56Z","title_canon_sha256":"b7ff75e3d09daa6d358a0e68afab58bf83cfad319e89826688f59b1c2ef84808"},"schema_version":"1.0","source":{"id":"2104.04436","kind":"arxiv","version":1}},"canonical_sha256":"daac004d63c50a8bc5cb02e15155b23993bbfa5a8e5274b06b686a5912ce298d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daac004d63c50a8bc5cb02e15155b23993bbfa5a8e5274b06b686a5912ce298d","first_computed_at":"2026-07-05T03:28:14.876920Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:28:14.876920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/w0h7bb1QuyOhEkwyahyAKKI/6JIVBiTDdPAkMSdxeqbZ91XjFo2oCGSPLIYsqTqp4RDoURzi4h0YH7trEEBCA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:28:14.877390Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.04436","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6c8bf18182068eb783d196a8be1e9db89058cebc739f727b731f79e7d960934","sha256:9928efe522154605914561503f6287cc503a2259ce18062472fc5d6a793304a8"],"state_sha256":"331ad1f38792229c95457bf8e35e3b766292eaba1ec0dc2ab7a28527405d3065"}