{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:HQ5FFGSOPQC4CXDWEPGDCK2Z35","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":"087f59baf696ac08c3bb6c067b6fd64d9b9838d1a7b873511073f57b4e28cdb5","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-04T10:12:57Z","title_canon_sha256":"89446f3b7110f52e9c680407e3029a84db7de60359eb456bfa860735140afd2c"},"schema_version":"1.0","source":{"id":"1805.09132","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09132","created_at":"2026-05-18T00:15:08Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09132v1","created_at":"2026-05-18T00:15:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09132","created_at":"2026-05-18T00:15:08Z"},{"alias_kind":"pith_short_12","alias_value":"HQ5FFGSOPQC4","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"HQ5FFGSOPQC4CXDW","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"HQ5FFGSO","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:a956fd19b092427ff33c26863c424ce912a3fe98c354a7a8640eb3b9beea0b06","target":"graph","created_at":"2026-05-18T00:15:08Z","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":"A novel type of a graphene/porphyrin hybrid with a direct covalent linker between graphene and a nickel(II) tetraphenylporphyrin unit has successfully been synthesized by the reductive exfoliation/functionalization of potassium intercalated graphite as starting material. Moreover, we directly compared the reactivity of two structurally different porphyrin derivatives, namely, meso-NiTPP-N2+, with the diazonium group in 4-position of a peripheral phenyl ring and a novel \\b{eta} NiTPP N2+ diazonium cation, where the diazonium group is directly attached to the \\b{eta}-pyrrolic position of the 18 ","authors_text":"Andreas Hirsch, Daniela Dasler, Frank Hauke, Hui-Lei Hou","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-04T10:12:57Z","title":"Reductive Functionalization of Graphenides with Nickel(II) Porphyrin Diazonium Compounds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09132","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":"sha256:3f18360b3b8c84cdf72bbf3b1bdcadff46dcfa56a5949a14c49df41b553970fb","target":"record","created_at":"2026-05-18T00:15:08Z","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":"087f59baf696ac08c3bb6c067b6fd64d9b9838d1a7b873511073f57b4e28cdb5","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-04T10:12:57Z","title_canon_sha256":"89446f3b7110f52e9c680407e3029a84db7de60359eb456bfa860735140afd2c"},"schema_version":"1.0","source":{"id":"1805.09132","kind":"arxiv","version":1}},"canonical_sha256":"3c3a529a4e7c05c15c7623cc312b59df7858888489cd02eda56c5a57ff23e45f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c3a529a4e7c05c15c7623cc312b59df7858888489cd02eda56c5a57ff23e45f","first_computed_at":"2026-05-18T00:15:08.474485Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:15:08.474485Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eATkyfvmk+0DIlKHMUKMNm6rosrtOQ2ncsHqcxMww4pJFo30SU/RXkewuBNeHYeCqtaox/3PU6ENMjDKjYjQAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:15:08.474947Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09132","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3f18360b3b8c84cdf72bbf3b1bdcadff46dcfa56a5949a14c49df41b553970fb","sha256:a956fd19b092427ff33c26863c424ce912a3fe98c354a7a8640eb3b9beea0b06"],"state_sha256":"72823d28b6cdb7b2926d7850d128235c3c0dd718eae012b6768a1b5b86f8c5d8"}