{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:V2AH7RSMVPBRCPBJRVFOPRA4TE","short_pith_number":"pith:V2AH7RSM","canonical_record":{"source":{"id":"1809.06058","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-09-17T07:50:12Z","cross_cats_sorted":[],"title_canon_sha256":"596c28400b1bfef093e4904b279e2a4f30e36f0bf6182036ab184322763bb802","abstract_canon_sha256":"adef874d0f2e10cc2b873ba0a498077e115a47efb19f8f398017e255d2bc86e1"},"schema_version":"1.0"},"canonical_sha256":"ae807fc64cabc3113c298d4ae7c41c99393b6a40b1ff3f776134b872b37b1357","source":{"kind":"arxiv","id":"1809.06058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.06058","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"arxiv_version","alias_value":"1809.06058v1","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.06058","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"pith_short_12","alias_value":"V2AH7RSMVPBR","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"V2AH7RSMVPBRCPBJ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"V2AH7RSM","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:V2AH7RSMVPBRCPBJRVFOPRA4TE","target":"record","payload":{"canonical_record":{"source":{"id":"1809.06058","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-09-17T07:50:12Z","cross_cats_sorted":[],"title_canon_sha256":"596c28400b1bfef093e4904b279e2a4f30e36f0bf6182036ab184322763bb802","abstract_canon_sha256":"adef874d0f2e10cc2b873ba0a498077e115a47efb19f8f398017e255d2bc86e1"},"schema_version":"1.0"},"canonical_sha256":"ae807fc64cabc3113c298d4ae7c41c99393b6a40b1ff3f776134b872b37b1357","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:06.800306Z","signature_b64":"l/51TZujU1SWeUST3F6bx0p3S5yj8Z5MOiVe9TltAhMdC35NXGYGTmHqhmruI+/qsvw/QigPyePlXiZvB4tGCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae807fc64cabc3113c298d4ae7c41c99393b6a40b1ff3f776134b872b37b1357","last_reissued_at":"2026-05-18T00:01:06.799636Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:06.799636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.06058","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:01:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SAcxGpiFWzhH8QdAR4Gt/0obSdCNoLW79zWoA5zHVVvGhfe++2aAZmb54U7F3zGEnF/esrVxySi4+9vHvt9sCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:22:12.348262Z"},"content_sha256":"0fbc5e4fca00c710296409a32f0f7aefcbf22942f4745a7a8a627fe4b9e9b0f6","schema_version":"1.0","event_id":"sha256:0fbc5e4fca00c710296409a32f0f7aefcbf22942f4745a7a8a627fe4b9e9b0f6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:V2AH7RSMVPBRCPBJRVFOPRA4TE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling Strategies for the Covalent Functionalization of 2D Phosphorene","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Andrea Ienco, Carlo Mealli, Gabriele Manca, Maurizio Peruzzini","submitted_at":"2018-09-17T07:50:12Z","abstract_excerpt":"The paper is an excursus on potential acid-base adducts formed by an unsaturated main group or transition metal species and P atoms of phosphorene (P n ), which derives from the black phosphorus exfoliation. Various possibilities of attaining a realistic covalent functionalization of the 2D material have been examined via DFT solid state calculations. The distribution of neighbor P atoms at one side of the sheet and the reciprocal directionalities of their lone pairs must be clearly understood to foreshadow the best possible acceptor reactants. Amongst the latter, the main group BH3 or I2 spec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.06058","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:01:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nAW2FNm68vTPsQSyZueIg3mLNmFfYmw26ekX3KDGcmYkFAOGcNNUPBzNgZE1k71wdtcTyr+9yH6/tX+W3OlgBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:22:12.349010Z"},"content_sha256":"30f5f4aae8fcc972f676f570fe66bde2ec8c24ebccb9e22df8456dab01a74ff4","schema_version":"1.0","event_id":"sha256:30f5f4aae8fcc972f676f570fe66bde2ec8c24ebccb9e22df8456dab01a74ff4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/bundle.json","state_url":"https://pith.science/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-10T06:22:12Z","links":{"resolver":"https://pith.science/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE","bundle":"https://pith.science/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/bundle.json","state":"https://pith.science/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2AH7RSMVPBRCPBJRVFOPRA4TE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:V2AH7RSMVPBRCPBJRVFOPRA4TE","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":"adef874d0f2e10cc2b873ba0a498077e115a47efb19f8f398017e255d2bc86e1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-09-17T07:50:12Z","title_canon_sha256":"596c28400b1bfef093e4904b279e2a4f30e36f0bf6182036ab184322763bb802"},"schema_version":"1.0","source":{"id":"1809.06058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.06058","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"arxiv_version","alias_value":"1809.06058v1","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.06058","created_at":"2026-05-18T00:01:06Z"},{"alias_kind":"pith_short_12","alias_value":"V2AH7RSMVPBR","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"V2AH7RSMVPBRCPBJ","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"V2AH7RSM","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:30f5f4aae8fcc972f676f570fe66bde2ec8c24ebccb9e22df8456dab01a74ff4","target":"graph","created_at":"2026-05-18T00:01:06Z","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":"The paper is an excursus on potential acid-base adducts formed by an unsaturated main group or transition metal species and P atoms of phosphorene (P n ), which derives from the black phosphorus exfoliation. Various possibilities of attaining a realistic covalent functionalization of the 2D material have been examined via DFT solid state calculations. The distribution of neighbor P atoms at one side of the sheet and the reciprocal directionalities of their lone pairs must be clearly understood to foreshadow the best possible acceptor reactants. Amongst the latter, the main group BH3 or I2 spec","authors_text":"Andrea Ienco, Carlo Mealli, Gabriele Manca, Maurizio Peruzzini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-09-17T07:50:12Z","title":"Modelling Strategies for the Covalent Functionalization of 2D Phosphorene"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.06058","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":"sha256:0fbc5e4fca00c710296409a32f0f7aefcbf22942f4745a7a8a627fe4b9e9b0f6","target":"record","created_at":"2026-05-18T00:01:06Z","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":"adef874d0f2e10cc2b873ba0a498077e115a47efb19f8f398017e255d2bc86e1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-09-17T07:50:12Z","title_canon_sha256":"596c28400b1bfef093e4904b279e2a4f30e36f0bf6182036ab184322763bb802"},"schema_version":"1.0","source":{"id":"1809.06058","kind":"arxiv","version":1}},"canonical_sha256":"ae807fc64cabc3113c298d4ae7c41c99393b6a40b1ff3f776134b872b37b1357","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae807fc64cabc3113c298d4ae7c41c99393b6a40b1ff3f776134b872b37b1357","first_computed_at":"2026-05-18T00:01:06.799636Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:06.799636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l/51TZujU1SWeUST3F6bx0p3S5yj8Z5MOiVe9TltAhMdC35NXGYGTmHqhmruI+/qsvw/QigPyePlXiZvB4tGCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:06.800306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.06058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0fbc5e4fca00c710296409a32f0f7aefcbf22942f4745a7a8a627fe4b9e9b0f6","sha256:30f5f4aae8fcc972f676f570fe66bde2ec8c24ebccb9e22df8456dab01a74ff4"],"state_sha256":"b401f5aa80822f2dedd3a99e3f748c3b78c5c1fba92a353678b0d6f4fefa5508"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F93cGU1wa4N2aVvOLq/9vY4/1vix2EY2DbycEtX0IlUmLxGVJ4sw5o+/yZYUUEqRC+8/AJLM8P2YfFbEnQlWCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T06:22:12.353592Z","bundle_sha256":"fe354ab9d3779ddae14b9c210450b50be5f3a236a500739554c29c05f26cc31e"}}