{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CH36Q7B4WEN7DXU37KJAQYILFK","short_pith_number":"pith:CH36Q7B4","canonical_record":{"source":{"id":"1709.05148","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-09-15T10:53:59Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"78f7f076368254de20511e2d63cf3187ad2060bab5c66bd8a2e598a967e5a929","abstract_canon_sha256":"ae3a6d4195265a718f2b147c39eb8e6f14a995e09af3217098453151cc43772f"},"schema_version":"1.0"},"canonical_sha256":"11f7e87c3cb11bf1de9bfa9208610b2aaeb6018625f2ae1d2ef62d17acbc5e53","source":{"kind":"arxiv","id":"1709.05148","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.05148","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"arxiv_version","alias_value":"1709.05148v1","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.05148","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"pith_short_12","alias_value":"CH36Q7B4WEN7","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CH36Q7B4WEN7DXU3","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CH36Q7B4","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CH36Q7B4WEN7DXU37KJAQYILFK","target":"record","payload":{"canonical_record":{"source":{"id":"1709.05148","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-09-15T10:53:59Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"78f7f076368254de20511e2d63cf3187ad2060bab5c66bd8a2e598a967e5a929","abstract_canon_sha256":"ae3a6d4195265a718f2b147c39eb8e6f14a995e09af3217098453151cc43772f"},"schema_version":"1.0"},"canonical_sha256":"11f7e87c3cb11bf1de9bfa9208610b2aaeb6018625f2ae1d2ef62d17acbc5e53","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:35:06.555056Z","signature_b64":"SE74FKXhJ1j3NuaiSwJk1IhcZI+vdrp6MZnBkE5lepNMnFwwfGo/YO8cWieCbJS6LD3fNJYuEvUx64iG0RkIAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"11f7e87c3cb11bf1de9bfa9208610b2aaeb6018625f2ae1d2ef62d17acbc5e53","last_reissued_at":"2026-05-18T00:35:06.554422Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:35:06.554422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.05148","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":"2026-05-18T00:35:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5XmUKOm8aG7JfLBZ23p0GLsh/Tft3pGfXn3SkpZMW532gd4QM8HUtF1RtraarfmiEay3B5y2nqRm99JeFuFQCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:16:31.348853Z"},"content_sha256":"127d2d7d7d7828b7b2d0265a162f109a0c348520e4e1296901c463bc4bff5e39","schema_version":"1.0","event_id":"sha256:127d2d7d7d7828b7b2d0265a162f109a0c348520e4e1296901c463bc4bff5e39"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CH36Q7B4WEN7DXU37KJAQYILFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal properties of graphene from path-integral simulations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Carlos P. Herrero, Rafael Ramirez","submitted_at":"2017-09-15T10:53:59Z","abstract_excerpt":"Thermal properties of graphene monolayers are studied by path-integral molecular dynamics (PIMD) simulations, which take into account the quantization of vibrational modes in the crystalline membrane, and allow one to consider anharmonic effects in these properties. This system was studied at temperatures in the range from 12 to 2000~K and zero external stress, by describing the interatomic interactions through the LCBOPII effective potential. We analyze the internal energy and specific heat and compare the results derived from the simulations with those yielded by a harmonic approximation for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.05148","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":"2026-05-18T00:35:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3o4fpS1RwdSVHtXG1Lv64OChERYsvRQwinYl+wyUx6/3KSPqS2qxsRc2icI8gbMt4Bqxdo3CCh8ygPbDOb99Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T01:16:31.349205Z"},"content_sha256":"90d29669cf9350017acd1bc5c991a62ac49fc8c213d59cb9efb522cf02c6e659","schema_version":"1.0","event_id":"sha256:90d29669cf9350017acd1bc5c991a62ac49fc8c213d59cb9efb522cf02c6e659"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CH36Q7B4WEN7DXU37KJAQYILFK/bundle.json","state_url":"https://pith.science/pith/CH36Q7B4WEN7DXU37KJAQYILFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CH36Q7B4WEN7DXU37KJAQYILFK/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":"2026-05-28T01:16:31Z","links":{"resolver":"https://pith.science/pith/CH36Q7B4WEN7DXU37KJAQYILFK","bundle":"https://pith.science/pith/CH36Q7B4WEN7DXU37KJAQYILFK/bundle.json","state":"https://pith.science/pith/CH36Q7B4WEN7DXU37KJAQYILFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CH36Q7B4WEN7DXU37KJAQYILFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CH36Q7B4WEN7DXU37KJAQYILFK","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":"ae3a6d4195265a718f2b147c39eb8e6f14a995e09af3217098453151cc43772f","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-09-15T10:53:59Z","title_canon_sha256":"78f7f076368254de20511e2d63cf3187ad2060bab5c66bd8a2e598a967e5a929"},"schema_version":"1.0","source":{"id":"1709.05148","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.05148","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"arxiv_version","alias_value":"1709.05148v1","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.05148","created_at":"2026-05-18T00:35:06Z"},{"alias_kind":"pith_short_12","alias_value":"CH36Q7B4WEN7","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CH36Q7B4WEN7DXU3","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CH36Q7B4","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:90d29669cf9350017acd1bc5c991a62ac49fc8c213d59cb9efb522cf02c6e659","target":"graph","created_at":"2026-05-18T00:35:06Z","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":"Thermal properties of graphene monolayers are studied by path-integral molecular dynamics (PIMD) simulations, which take into account the quantization of vibrational modes in the crystalline membrane, and allow one to consider anharmonic effects in these properties. This system was studied at temperatures in the range from 12 to 2000~K and zero external stress, by describing the interatomic interactions through the LCBOPII effective potential. We analyze the internal energy and specific heat and compare the results derived from the simulations with those yielded by a harmonic approximation for","authors_text":"Carlos P. Herrero, Rafael Ramirez","cross_cats":["physics.chem-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-09-15T10:53:59Z","title":"Thermal properties of graphene from path-integral simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.05148","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":"sha256:127d2d7d7d7828b7b2d0265a162f109a0c348520e4e1296901c463bc4bff5e39","target":"record","created_at":"2026-05-18T00:35:06Z","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":"ae3a6d4195265a718f2b147c39eb8e6f14a995e09af3217098453151cc43772f","cross_cats_sorted":["physics.chem-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-09-15T10:53:59Z","title_canon_sha256":"78f7f076368254de20511e2d63cf3187ad2060bab5c66bd8a2e598a967e5a929"},"schema_version":"1.0","source":{"id":"1709.05148","kind":"arxiv","version":1}},"canonical_sha256":"11f7e87c3cb11bf1de9bfa9208610b2aaeb6018625f2ae1d2ef62d17acbc5e53","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"11f7e87c3cb11bf1de9bfa9208610b2aaeb6018625f2ae1d2ef62d17acbc5e53","first_computed_at":"2026-05-18T00:35:06.554422Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:35:06.554422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SE74FKXhJ1j3NuaiSwJk1IhcZI+vdrp6MZnBkE5lepNMnFwwfGo/YO8cWieCbJS6LD3fNJYuEvUx64iG0RkIAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:35:06.555056Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.05148","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:127d2d7d7d7828b7b2d0265a162f109a0c348520e4e1296901c463bc4bff5e39","sha256:90d29669cf9350017acd1bc5c991a62ac49fc8c213d59cb9efb522cf02c6e659"],"state_sha256":"1d6f8791699230b81d6dd992e5bc61dc685ef51ad97c2c177422a574a31858f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l/Gvez2KMSTL5t6C+aVCFdx/wDKZPLGB85acmgW6RHaBjsXfCR4kDhKi17Kipe/ht+yzXJDp0Xcz/RDLcta3Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T01:16:31.351253Z","bundle_sha256":"39f5197fb78aa84f775f299df2e392c7b635ef8def5488a850bab6f07d9bbd7a"}}