{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:H25YMWDQXLN7Y2LP7XWSRKN2KD","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":"3549692055bb13dc25dd47b33b0f334adcc6a6f8cfbfcb25d6e16079f33e0ada","cross_cats_sorted":["astro-ph.EP","cond-mat.dis-nn","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-01-28T04:51:15Z","title_canon_sha256":"310e3947ba2253b961a1ac917c606c835b50d2a05c6ad396e824cbeede0b4987"},"schema_version":"1.0","source":{"id":"1702.06066","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.06066","created_at":"2026-05-18T00:50:24Z"},{"alias_kind":"arxiv_version","alias_value":"1702.06066v1","created_at":"2026-05-18T00:50:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.06066","created_at":"2026-05-18T00:50:24Z"},{"alias_kind":"pith_short_12","alias_value":"H25YMWDQXLN7","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"H25YMWDQXLN7Y2LP","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"H25YMWDQ","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:67f2eff3cc6aeb0362bfbcd9d53165919a5b5dbd4f6cacdbded9392bb8dbd5a4","target":"graph","created_at":"2026-05-18T00:50:24Z","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 report the observation of pulsed electron-nuclear double resonance (ENDOR) spectrum caused by interactions of the nitrogen nuclei 14N with the unpaired electron of the paramagnetic vanadyl complexes VO2+ of vanadyl porphyrins in natural crude oil. We provide detailed experimental and theoretical characterization of the nitrogen hyperfine and quadrupole tensors.","authors_text":"A.A. Rodionov, A.V. Galukhin, G.V Mamin, I.N. Gracheva, M.R. Gafurov, S.B. Orlinskii, T.B. Biktagirov","cross_cats":["astro-ph.EP","cond-mat.dis-nn","cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-01-28T04:51:15Z","title":"ENDOR study of nitrogen hyperfine and quadrupole tensors in vanadyl porphyrins of heavy crude oil"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.06066","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":"sha256:90223b8029f21df425284ace468574cf07b67cf81fbbf055b56581945f87eacb","target":"record","created_at":"2026-05-18T00:50:24Z","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":"3549692055bb13dc25dd47b33b0f334adcc6a6f8cfbfcb25d6e16079f33e0ada","cross_cats_sorted":["astro-ph.EP","cond-mat.dis-nn","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2017-01-28T04:51:15Z","title_canon_sha256":"310e3947ba2253b961a1ac917c606c835b50d2a05c6ad396e824cbeede0b4987"},"schema_version":"1.0","source":{"id":"1702.06066","kind":"arxiv","version":1}},"canonical_sha256":"3ebb865870badbfc696ffded28a9ba50e493e31f9a6f5191595ad066ce66489b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ebb865870badbfc696ffded28a9ba50e493e31f9a6f5191595ad066ce66489b","first_computed_at":"2026-05-18T00:50:24.436433Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:24.436433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R+5dZsCzNRPtSPXAud4SlehRJrEc+B+KZwuvioGuSV3cmFl8Y0Op2aVXxPYkg/LXTNQ7tkMQ36FRh0EYGfQFCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:24.437107Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.06066","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90223b8029f21df425284ace468574cf07b67cf81fbbf055b56581945f87eacb","sha256:67f2eff3cc6aeb0362bfbcd9d53165919a5b5dbd4f6cacdbded9392bb8dbd5a4"],"state_sha256":"4e1480f3228bffa57a4e0754f6a0d03a5d3ff9b7d896a6da4e7ba80ad0ade4f3"}