{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VSQ4XYYRGLCNFZRX2HGV6U722L","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":"b355a8ea41476c83246053c1f84674d451d10a71382516892ecbc5be696d1538","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-11T10:32:05Z","title_canon_sha256":"1fc56c386862feecc0e5d523c26688a4b7d199a745de99785f525f8af6ea7eda"},"schema_version":"1.0","source":{"id":"1704.03229","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.03229","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1704.03229v1","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.03229","created_at":"2026-05-18T00:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"VSQ4XYYRGLCN","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VSQ4XYYRGLCNFZRX","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VSQ4XYYR","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:090502cbb7e93e6baddbe9d050c2f3dcb2f33e1b2d3229319e3596468f2efdff","target":"graph","created_at":"2026-05-18T00:43:25Z","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 studied the pc-scale core shift effect using radio light curves for three blazars, S5 0716+714, 3C 279 and BL Lacertae, which were monitored at five frequencies ($\\nu$) between 4.8 GHz and 36.8 GHz using the University of Michigan Radio Astronomical Observatory (UMRAO), the Crimean Astrophysical Observatory (CrAO), and Metsahovi Radio Observatory for over 40 years. Flares were Gaussian fitted to derive time delays between observed frequencies for each flare ($\\Delta t$), peak amplitude ($A$), and their half width. Using $A \\propto \\nu^{\\alpha}$ we infer $\\alpha$ in the range $-$16.67 to 2.4","authors_text":"A. Agarwal, A. E. Volvach, A. Lahteenmaki, Alok C. Gupta, A. Mangalam, H. D. Aller, L. N. Volvach, M. F. Aller, M. F. Gu, M. Tornikoski, P. Mohan","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-11T10:32:05Z","title":"Core shift effect in blazars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.03229","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:ee89d1b5fd95fb3c9993a2f1fbe88fd49a5f109a75f0185135a8652f0de2dc67","target":"record","created_at":"2026-05-18T00:43:25Z","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":"b355a8ea41476c83246053c1f84674d451d10a71382516892ecbc5be696d1538","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-11T10:32:05Z","title_canon_sha256":"1fc56c386862feecc0e5d523c26688a4b7d199a745de99785f525f8af6ea7eda"},"schema_version":"1.0","source":{"id":"1704.03229","kind":"arxiv","version":1}},"canonical_sha256":"aca1cbe31132c4d2e637d1cd5f53fad2c31bb77bb6ae739cb543ade4b9572088","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aca1cbe31132c4d2e637d1cd5f53fad2c31bb77bb6ae739cb543ade4b9572088","first_computed_at":"2026-05-18T00:43:25.690239Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:25.690239Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u4DjN1kloESgKzELUWSOgsTvYDUWe5NtEZ8Pq/Rv9UcwfaZ4B3y4maecRh820QigGHt55CB7W3ecTgSsjhfCCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:25.690803Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.03229","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee89d1b5fd95fb3c9993a2f1fbe88fd49a5f109a75f0185135a8652f0de2dc67","sha256:090502cbb7e93e6baddbe9d050c2f3dcb2f33e1b2d3229319e3596468f2efdff"],"state_sha256":"a8456680418e8f2c3cc293ab57d6f8b35ebceeec9bf3492a8989c18045582a79"}