{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7XR5YH2PSD6RVHIJNXVMUDW3YU","short_pith_number":"pith:7XR5YH2P","canonical_record":{"source":{"id":"1204.5036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-23T11:54:02Z","cross_cats_sorted":[],"title_canon_sha256":"6c18b9c561a2f1f8beeda8aba1ab0e22a6d1e0c631dddf2fc3e887e322226fdd","abstract_canon_sha256":"9883913421c1321084a207e033aaa643d81e4c934c2782b5d46d10dd398f843c"},"schema_version":"1.0"},"canonical_sha256":"fde3dc1f4f90fd1a9d096deaca0edbc530a3f7d8a31c16669289bdd3ac5024ed","source":{"kind":"arxiv","id":"1204.5036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5036","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5036v1","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5036","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"7XR5YH2PSD6R","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XR5YH2PSD6RVHIJ","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XR5YH2P","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7XR5YH2PSD6RVHIJNXVMUDW3YU","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-23T11:54:02Z","cross_cats_sorted":[],"title_canon_sha256":"6c18b9c561a2f1f8beeda8aba1ab0e22a6d1e0c631dddf2fc3e887e322226fdd","abstract_canon_sha256":"9883913421c1321084a207e033aaa643d81e4c934c2782b5d46d10dd398f843c"},"schema_version":"1.0"},"canonical_sha256":"fde3dc1f4f90fd1a9d096deaca0edbc530a3f7d8a31c16669289bdd3ac5024ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:56:52.711701Z","signature_b64":"TmcY939n1DoGEbv7k6f0DQXYc27OuevCoAWUf6lHlfAsw4m8sTDBwJIbTzgYTpk3uWFI6QMow9LdbMv0Q3ATCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fde3dc1f4f90fd1a9d096deaca0edbc530a3f7d8a31c16669289bdd3ac5024ed","last_reissued_at":"2026-05-18T00:56:52.710887Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:56:52.710887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5036","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":"2026-05-18T00:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I4mSiEEfXwJbbSAMwv82W13/HL+XoW7bGKZ5cCER4tYR7M6iJUrv5A/KQ5kXgOYoFUSCvSviCcl92bnW8WOFAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T02:39:51.311467Z"},"content_sha256":"55f8de489da61648486e039b44a4d92818249ee2a17bc3cb17dc1d32246ec235","schema_version":"1.0","event_id":"sha256:55f8de489da61648486e039b44a4d92818249ee2a17bc3cb17dc1d32246ec235"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7XR5YH2PSD6RVHIJNXVMUDW3YU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Negative Differential Conductance in Nano-junctions: A Current Constrained Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Anna Painelli, Prakash Parida, Swapan K. Pati","submitted_at":"2012-04-23T11:54:02Z","abstract_excerpt":"A current constrained approach is proposed to calculate negative differential conductance in molecular nano-junctions. A four-site junction is considered where a steady-state current is forced by inserting only the two central sites within the circuit. The two lateral sites (representing e.g. dangling molecular groups) do not actively participate in transport, but exchange electrons with the two main sites. These auxiliary sites allow for a variable number of electrons within the junction, while, as required by the current constrained approach, the total number of electrons in the system is ke"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5036","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":"2026-05-18T00:56:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jHbFKtgILw2ZPBZyz22FWSewQHWCPd0NgiCU8WJFfMoxu0jle5vV/u75xk68inxaTQs4E+AnABqxLloXFCWBCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T02:39:51.311951Z"},"content_sha256":"f2f5357dd086fe24874588e2016d755e28a4afe7400f62d10abb8635f5935fc0","schema_version":"1.0","event_id":"sha256:f2f5357dd086fe24874588e2016d755e28a4afe7400f62d10abb8635f5935fc0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/bundle.json","state_url":"https://pith.science/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/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":"2026-06-26T02:39:51Z","links":{"resolver":"https://pith.science/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU","bundle":"https://pith.science/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/bundle.json","state":"https://pith.science/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7XR5YH2PSD6RVHIJNXVMUDW3YU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7XR5YH2PSD6RVHIJNXVMUDW3YU","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":"9883913421c1321084a207e033aaa643d81e4c934c2782b5d46d10dd398f843c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-23T11:54:02Z","title_canon_sha256":"6c18b9c561a2f1f8beeda8aba1ab0e22a6d1e0c631dddf2fc3e887e322226fdd"},"schema_version":"1.0","source":{"id":"1204.5036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5036","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5036v1","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5036","created_at":"2026-05-18T00:56:52Z"},{"alias_kind":"pith_short_12","alias_value":"7XR5YH2PSD6R","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XR5YH2PSD6RVHIJ","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XR5YH2P","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:f2f5357dd086fe24874588e2016d755e28a4afe7400f62d10abb8635f5935fc0","target":"graph","created_at":"2026-05-18T00:56:52Z","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 current constrained approach is proposed to calculate negative differential conductance in molecular nano-junctions. A four-site junction is considered where a steady-state current is forced by inserting only the two central sites within the circuit. The two lateral sites (representing e.g. dangling molecular groups) do not actively participate in transport, but exchange electrons with the two main sites. These auxiliary sites allow for a variable number of electrons within the junction, while, as required by the current constrained approach, the total number of electrons in the system is ke","authors_text":"Anna Painelli, Prakash Parida, Swapan K. Pati","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-23T11:54:02Z","title":"Negative Differential Conductance in Nano-junctions: A Current Constrained Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5036","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":"sha256:55f8de489da61648486e039b44a4d92818249ee2a17bc3cb17dc1d32246ec235","target":"record","created_at":"2026-05-18T00:56:52Z","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":"9883913421c1321084a207e033aaa643d81e4c934c2782b5d46d10dd398f843c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2012-04-23T11:54:02Z","title_canon_sha256":"6c18b9c561a2f1f8beeda8aba1ab0e22a6d1e0c631dddf2fc3e887e322226fdd"},"schema_version":"1.0","source":{"id":"1204.5036","kind":"arxiv","version":1}},"canonical_sha256":"fde3dc1f4f90fd1a9d096deaca0edbc530a3f7d8a31c16669289bdd3ac5024ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fde3dc1f4f90fd1a9d096deaca0edbc530a3f7d8a31c16669289bdd3ac5024ed","first_computed_at":"2026-05-18T00:56:52.710887Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:52.710887Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TmcY939n1DoGEbv7k6f0DQXYc27OuevCoAWUf6lHlfAsw4m8sTDBwJIbTzgYTpk3uWFI6QMow9LdbMv0Q3ATCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:52.711701Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55f8de489da61648486e039b44a4d92818249ee2a17bc3cb17dc1d32246ec235","sha256:f2f5357dd086fe24874588e2016d755e28a4afe7400f62d10abb8635f5935fc0"],"state_sha256":"19ecca1c551927efbe87e879e9d67450a9eba94977f9e2581e15b7b14132587e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2q9qCJOA3pvfuN+iKvw0c+1J2uFBxVSKurrpIRlJ0AI+p6KK3dhPluLEubAyv0cgNpiFhQhdJFbzsPrKbQCCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T02:39:51.315021Z","bundle_sha256":"d3f3d307552cd2eb47b5740ee800fd729fded0e18a9e2b01698d549b4215f7c1"}}