{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SSAR4RL4OM4T2N6XISMEDTDJJ2","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":"ee247d43f2488900380c2b2cf6f50a368f0a9f0d2304e29f8c68865ef610af50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-25T12:59:25Z","title_canon_sha256":"8df09ed38bee0d9fff14ac66b1f1776a65b6a40b4bc916195bccd4490f763622"},"schema_version":"1.0","source":{"id":"1801.08389","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08389","created_at":"2026-05-18T00:25:06Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08389v1","created_at":"2026-05-18T00:25:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08389","created_at":"2026-05-18T00:25:06Z"},{"alias_kind":"pith_short_12","alias_value":"SSAR4RL4OM4T","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SSAR4RL4OM4T2N6X","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SSAR4RL4","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:b10829ec8d6ad9e15c82f1865cdd5b762a4b63f594786259e398f2c2cf8b4040","target":"graph","created_at":"2026-05-18T00:25:06Z","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":"Due to its unique physical and chemical properties, graphene is being considered as a promising material for energy conversion and storage applications. Introduction of functional groups and dopants on/in graphene is a useful strategy for tuning its properties. In order to fully exploit its potential, atomic-level understanding of its interaction with species of importance for such applications is required. We present a DFT study of the interaction of sodium atoms with epoxy-graphene and analyze how this interaction is affected upon doping with boron and nitrogen. We demonstrate how the dopant","authors_text":"Ana S. Dobrota, B\\\"orje Johansson, Igor A. Pa\\v{s}ti, Natalia V. Skorodumova, Nata\\v{s}a P. Dikli\\'c, Slavko V. Mentus","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-25T12:59:25Z","title":"Sodium storage via single epoxy group on graphene - The role of surface doping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08389","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:bea6a6ecef7224536d9246917cb8b3857eb11994a61e7ab7725f9bd9ce0b6ec0","target":"record","created_at":"2026-05-18T00:25:06Z","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":"ee247d43f2488900380c2b2cf6f50a368f0a9f0d2304e29f8c68865ef610af50","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-25T12:59:25Z","title_canon_sha256":"8df09ed38bee0d9fff14ac66b1f1776a65b6a40b4bc916195bccd4490f763622"},"schema_version":"1.0","source":{"id":"1801.08389","kind":"arxiv","version":1}},"canonical_sha256":"94811e457c73393d37d7449841cc694ebe5aab13b5058d0c7ac33ab9e33a352a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94811e457c73393d37d7449841cc694ebe5aab13b5058d0c7ac33ab9e33a352a","first_computed_at":"2026-05-18T00:25:06.429458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:06.429458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"J3ZtkF9v3A/+E5oM2jrN93LAoXukVLiAe6mgNh61ljMsYbovht3KsBDrlev2uWepZR+wQDmWNx5GwRGDbbhtBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:06.429973Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.08389","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bea6a6ecef7224536d9246917cb8b3857eb11994a61e7ab7725f9bd9ce0b6ec0","sha256:b10829ec8d6ad9e15c82f1865cdd5b762a4b63f594786259e398f2c2cf8b4040"],"state_sha256":"2b9c5effcd302e81298008e32d990348de0fa9858fda297c9d4cf1f896467de8"}