{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:BTJO4QGGLCRWBLGEFJAZZ4LHUA","short_pith_number":"pith:BTJO4QGG","canonical_record":{"source":{"id":"1301.6181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-25T21:42:49Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"7397c60492c3a160f0faa77785b98f92f4d0a00a98180907eb4ba3de6a768750","abstract_canon_sha256":"60725063b3d529ec29738a31807141f03bcec258ede153d97b3d364a495b0649"},"schema_version":"1.0"},"canonical_sha256":"0cd2ee40c658a360acc42a419cf167a03dd809974554e1223022e50d24d6fa1f","source":{"kind":"arxiv","id":"1301.6181","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6181","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6181v1","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6181","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"pith_short_12","alias_value":"BTJO4QGGLCRW","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BTJO4QGGLCRWBLGE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BTJO4QGG","created_at":"2026-05-18T12:27:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:BTJO4QGGLCRWBLGEFJAZZ4LHUA","target":"record","payload":{"canonical_record":{"source":{"id":"1301.6181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-25T21:42:49Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"7397c60492c3a160f0faa77785b98f92f4d0a00a98180907eb4ba3de6a768750","abstract_canon_sha256":"60725063b3d529ec29738a31807141f03bcec258ede153d97b3d364a495b0649"},"schema_version":"1.0"},"canonical_sha256":"0cd2ee40c658a360acc42a419cf167a03dd809974554e1223022e50d24d6fa1f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:35:24.832117Z","signature_b64":"FyKfu6q77cVVd/7OxGD8eiRxk5fSjBurhJ/YEgQTBxM0stZWEfLJR1bMTU8Y3xkJfvpvTI6/cnQ7C3qR77rTBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0cd2ee40c658a360acc42a419cf167a03dd809974554e1223022e50d24d6fa1f","last_reissued_at":"2026-05-18T03:35:24.831254Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:35:24.831254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.6181","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":"2026-05-18T03:35:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cidCzaG6aICBga5ShxO6rHsVvXqKP0ZLDyHZUBj5K5d0RMuMtFbKRRx5Fzz/hgGebGkpcTfeyN2e0FGLOL9mAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:33:10.163479Z"},"content_sha256":"8ae7653d90735e47e9be19060dde37d9080a33a76a0d6b803c7e9f1098646941","schema_version":"1.0","event_id":"sha256:8ae7653d90735e47e9be19060dde37d9080a33a76a0d6b803c7e9f1098646941"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:BTJO4QGGLCRWBLGEFJAZZ4LHUA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal properties of graphene: Fundamentals and applications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Ajit K. Roy, Eric Pop, Vikas Varshney","submitted_at":"2013-01-25T21:42:49Z","abstract_excerpt":"Graphene is a two-dimensional (2D) material with over 100-fold anisotropy of heat flow between the in-plane and out-of-plane directions. High in-plane thermal conductivity is due to covalent sp2 bonding between carbon atoms, whereas out-of-plane heat flow is limited by weak van der Waals coupling. Herein, we review the thermal properties of graphene, including its specific heat and thermal conductivity (from diffusive to ballistic limits) and the influence of substrates, defects, and other atomic modifications. We also highlight practical applications in which the thermal properties of graphen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6181","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":"2026-05-18T03:35:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jb+WFjF4mgCFyvsMNNjvMy+tUL6o0klYzwJu4nc079IzbXDy1muW+JHXEH9m44LtsV2jyOyBYbEJSI7HgwFvBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T23:33:10.164053Z"},"content_sha256":"f3fea675e6f5a638b1a920583a7eb338983efd5886973cc95fbcad43666f9ac5","schema_version":"1.0","event_id":"sha256:f3fea675e6f5a638b1a920583a7eb338983efd5886973cc95fbcad43666f9ac5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/bundle.json","state_url":"https://pith.science/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/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":"2026-06-07T23:33:10Z","links":{"resolver":"https://pith.science/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA","bundle":"https://pith.science/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/bundle.json","state":"https://pith.science/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BTJO4QGGLCRWBLGEFJAZZ4LHUA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:BTJO4QGGLCRWBLGEFJAZZ4LHUA","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":"60725063b3d529ec29738a31807141f03bcec258ede153d97b3d364a495b0649","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-25T21:42:49Z","title_canon_sha256":"7397c60492c3a160f0faa77785b98f92f4d0a00a98180907eb4ba3de6a768750"},"schema_version":"1.0","source":{"id":"1301.6181","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6181","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6181v1","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6181","created_at":"2026-05-18T03:35:24Z"},{"alias_kind":"pith_short_12","alias_value":"BTJO4QGGLCRW","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_16","alias_value":"BTJO4QGGLCRWBLGE","created_at":"2026-05-18T12:27:40Z"},{"alias_kind":"pith_short_8","alias_value":"BTJO4QGG","created_at":"2026-05-18T12:27:40Z"}],"graph_snapshots":[{"event_id":"sha256:f3fea675e6f5a638b1a920583a7eb338983efd5886973cc95fbcad43666f9ac5","target":"graph","created_at":"2026-05-18T03:35:24Z","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":"Graphene is a two-dimensional (2D) material with over 100-fold anisotropy of heat flow between the in-plane and out-of-plane directions. High in-plane thermal conductivity is due to covalent sp2 bonding between carbon atoms, whereas out-of-plane heat flow is limited by weak van der Waals coupling. Herein, we review the thermal properties of graphene, including its specific heat and thermal conductivity (from diffusive to ballistic limits) and the influence of substrates, defects, and other atomic modifications. We also highlight practical applications in which the thermal properties of graphen","authors_text":"Ajit K. Roy, Eric Pop, Vikas Varshney","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-25T21:42:49Z","title":"Thermal properties of graphene: Fundamentals and applications"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6181","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":"sha256:8ae7653d90735e47e9be19060dde37d9080a33a76a0d6b803c7e9f1098646941","target":"record","created_at":"2026-05-18T03:35:24Z","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":"60725063b3d529ec29738a31807141f03bcec258ede153d97b3d364a495b0649","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-01-25T21:42:49Z","title_canon_sha256":"7397c60492c3a160f0faa77785b98f92f4d0a00a98180907eb4ba3de6a768750"},"schema_version":"1.0","source":{"id":"1301.6181","kind":"arxiv","version":1}},"canonical_sha256":"0cd2ee40c658a360acc42a419cf167a03dd809974554e1223022e50d24d6fa1f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0cd2ee40c658a360acc42a419cf167a03dd809974554e1223022e50d24d6fa1f","first_computed_at":"2026-05-18T03:35:24.831254Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:24.831254Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FyKfu6q77cVVd/7OxGD8eiRxk5fSjBurhJ/YEgQTBxM0stZWEfLJR1bMTU8Y3xkJfvpvTI6/cnQ7C3qR77rTBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:24.832117Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6181","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ae7653d90735e47e9be19060dde37d9080a33a76a0d6b803c7e9f1098646941","sha256:f3fea675e6f5a638b1a920583a7eb338983efd5886973cc95fbcad43666f9ac5"],"state_sha256":"24c9cefe6ab662f2336a94deec8e36c79fee1672fe085ea6a7ff9c23200a7fd1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4JVx0nmdGfwcHntbzoo/zW/47J7ngfldxVShdYwFt/LkefuaBMFEwTQSffCgciQF+HVvftP7K9LZhafQdxcMCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T23:33:10.167243Z","bundle_sha256":"a21daa15d772bdf65f316d4bb5e9e4f6a6b433958d20e86e764e614b69ff9eca"}}