{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:UDXQNK2NROKWRQLNPVG77OFXTF","short_pith_number":"pith:UDXQNK2N","canonical_record":{"source":{"id":"1009.0231","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T17:51:18Z","cross_cats_sorted":[],"title_canon_sha256":"6da7adcabcb6c1ab1436160fd678ef06930f6677ecf9913857c1bc4004a216aa","abstract_canon_sha256":"ddb93d125082daaa976919c5e1333fd199215fb34fa0e3144c90a80af7e814e0"},"schema_version":"1.0"},"canonical_sha256":"a0ef06ab4d8b9568c16d7d4dffb8b799628e56a02e246cecbbda678427baff19","source":{"kind":"arxiv","id":"1009.0231","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0231","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0231v1","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0231","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"UDXQNK2NROKW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UDXQNK2NROKWRQLN","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UDXQNK2N","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:UDXQNK2NROKWRQLNPVG77OFXTF","target":"record","payload":{"canonical_record":{"source":{"id":"1009.0231","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T17:51:18Z","cross_cats_sorted":[],"title_canon_sha256":"6da7adcabcb6c1ab1436160fd678ef06930f6677ecf9913857c1bc4004a216aa","abstract_canon_sha256":"ddb93d125082daaa976919c5e1333fd199215fb34fa0e3144c90a80af7e814e0"},"schema_version":"1.0"},"canonical_sha256":"a0ef06ab4d8b9568c16d7d4dffb8b799628e56a02e246cecbbda678427baff19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:35.345322Z","signature_b64":"QJXHnn6MdM2BNUxJPKFiR09st/lSlgWSQeTIRlaM+F61Oy1YgmVw55ShlGaDSi9JXyC3zG9IXSjAeA8KFWgKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a0ef06ab4d8b9568c16d7d4dffb8b799628e56a02e246cecbbda678427baff19","last_reissued_at":"2026-05-18T04:41:35.344888Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:35.344888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.0231","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":"2026-05-18T04:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VVeUmYk/EVoLDLVu647p6mRUDJXyz518SJL2xi3fGIiXf3AucQVLkdiTfd8TSszjUia3QcKzVQOhyq9VV9fsCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:04:52.991931Z"},"content_sha256":"8fc30239a48512a7c3f1dad03fdddb264781c8e074749f5746c0eb68cefc0b29","schema_version":"1.0","event_id":"sha256:8fc30239a48512a7c3f1dad03fdddb264781c8e074749f5746c0eb68cefc0b29"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:UDXQNK2NROKWRQLNPVG77OFXTF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thermal conductance at the graphene-SiO2 interface measured by optical pump-probe spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chun Hung Lui, Kin Fai Mak, Tony F. Heinz","submitted_at":"2010-09-01T17:51:18Z","abstract_excerpt":"We have examined the interfacial thermal conductance {\\sigma}int of single and multi-layer graphene samples prepared on fused SiO2 substrates by mechanical exfoliation of graphite. By using an ultrafast optical pump pulse and monitoring the transient reflectivity on the picosecond time scale, we obtained an average {\\sigma}int of 5,000 W/cm2K for the graphene-SiO2 system. We observed significant variation in {\\sigma}int between individual samples, but found no systematic dependence on the thickness of the graphene layers."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0231","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":"2026-05-18T04:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qmrDShaLLGZsjOwVOxvKJKno/AJokmnaQCxM3xdWdWP83DFMsoFkvz8jPE9vfWn4S73JkM/eLP9RDDO4YtuvDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:04:52.992289Z"},"content_sha256":"4cb1996c3d6b38f2809711d4612830e019547cebd5c819e53478e69e9c97a916","schema_version":"1.0","event_id":"sha256:4cb1996c3d6b38f2809711d4612830e019547cebd5c819e53478e69e9c97a916"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UDXQNK2NROKWRQLNPVG77OFXTF/bundle.json","state_url":"https://pith.science/pith/UDXQNK2NROKWRQLNPVG77OFXTF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UDXQNK2NROKWRQLNPVG77OFXTF/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":"2026-05-19T07:04:52Z","links":{"resolver":"https://pith.science/pith/UDXQNK2NROKWRQLNPVG77OFXTF","bundle":"https://pith.science/pith/UDXQNK2NROKWRQLNPVG77OFXTF/bundle.json","state":"https://pith.science/pith/UDXQNK2NROKWRQLNPVG77OFXTF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UDXQNK2NROKWRQLNPVG77OFXTF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:UDXQNK2NROKWRQLNPVG77OFXTF","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":"ddb93d125082daaa976919c5e1333fd199215fb34fa0e3144c90a80af7e814e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T17:51:18Z","title_canon_sha256":"6da7adcabcb6c1ab1436160fd678ef06930f6677ecf9913857c1bc4004a216aa"},"schema_version":"1.0","source":{"id":"1009.0231","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0231","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0231v1","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0231","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"UDXQNK2NROKW","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UDXQNK2NROKWRQLN","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UDXQNK2N","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:4cb1996c3d6b38f2809711d4612830e019547cebd5c819e53478e69e9c97a916","target":"graph","created_at":"2026-05-18T04:41:35Z","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":"We have examined the interfacial thermal conductance {\\sigma}int of single and multi-layer graphene samples prepared on fused SiO2 substrates by mechanical exfoliation of graphite. By using an ultrafast optical pump pulse and monitoring the transient reflectivity on the picosecond time scale, we obtained an average {\\sigma}int of 5,000 W/cm2K for the graphene-SiO2 system. We observed significant variation in {\\sigma}int between individual samples, but found no systematic dependence on the thickness of the graphene layers.","authors_text":"Chun Hung Lui, Kin Fai Mak, Tony F. Heinz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T17:51:18Z","title":"Thermal conductance at the graphene-SiO2 interface measured by optical pump-probe spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0231","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":"sha256:8fc30239a48512a7c3f1dad03fdddb264781c8e074749f5746c0eb68cefc0b29","target":"record","created_at":"2026-05-18T04:41:35Z","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":"ddb93d125082daaa976919c5e1333fd199215fb34fa0e3144c90a80af7e814e0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T17:51:18Z","title_canon_sha256":"6da7adcabcb6c1ab1436160fd678ef06930f6677ecf9913857c1bc4004a216aa"},"schema_version":"1.0","source":{"id":"1009.0231","kind":"arxiv","version":1}},"canonical_sha256":"a0ef06ab4d8b9568c16d7d4dffb8b799628e56a02e246cecbbda678427baff19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a0ef06ab4d8b9568c16d7d4dffb8b799628e56a02e246cecbbda678427baff19","first_computed_at":"2026-05-18T04:41:35.344888Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:35.344888Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QJXHnn6MdM2BNUxJPKFiR09st/lSlgWSQeTIRlaM+F61Oy1YgmVw55ShlGaDSi9JXyC3zG9IXSjAeA8KFWgKCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:35.345322Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.0231","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8fc30239a48512a7c3f1dad03fdddb264781c8e074749f5746c0eb68cefc0b29","sha256:4cb1996c3d6b38f2809711d4612830e019547cebd5c819e53478e69e9c97a916"],"state_sha256":"8816b18854801590a70f05352985e1c0a9e92816a7526d05dc84c0f28d5c5967"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"goLG6VU0ofOE5I82e1jUAbIzatD3iweM0JeFIhrs8ahljbpdmQ3/oCa3M9SMzki0tlNY6c1wWTm9t2cPxuXPBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T07:04:52.994115Z","bundle_sha256":"8885913ef7e68c2f4d602ed5879e504f685b682e8a6a879073330aa041aca6b9"}}