{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:7NF5CHTIWNDHMB4UX4OXTTB7HC","short_pith_number":"pith:7NF5CHTI","schema_version":"1.0","canonical_sha256":"fb4bd11e68b346760794bf1d79cc3f38b9394268ae03754f3fe074d958238bab","source":{"kind":"arxiv","id":"0905.3103","version":2},"attestation_state":"computed","paper":{"title":"Graphene under hydrostatic pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Eugene Gregoryanz, John E. Proctor, Jonathan N. Coleman, Konstantin S. Novoselov, Matthew P. Halsall, Mustafa Lotya","submitted_at":"2009-05-19T13:29:44Z","abstract_excerpt":"In-situ high pressure Raman spectroscopy is used to study monolayer, bilayer and few-layer graphene samples supported on silicon in a diamond anvil cell to 3.5 GPa. The results show that monolayer graphene adheres to the silicon substrate under compressive stress. A clear trend in this behaviour as a function of graphene sample thickness is observed. We also study unsupported graphene samples in a diamond anvil cell to 8 GPa, and show that the properties of graphene under compression are intrinsically similar to graphite. Our results demonstrate the differing effects of uniaxial and biaxial st"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0905.3103","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-05-19T13:29:44Z","cross_cats_sorted":[],"title_canon_sha256":"14fa24c42716bf262d29f7e4e4aa05ea4c90213e6e0eaf5243b5bfc364b588b0","abstract_canon_sha256":"6acf5d1d6a4cd1447a10ce6d4696a55679b1bed10570c212c768029306097d29"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:49:09.395077Z","signature_b64":"rG36HuLcR8xhOCA4vdtdOE5OQGnLSOujrg7MFwV2oYQLEPJK/a/Bf1ybGu1heBN92Gy6VzpJrRma420y9BhgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb4bd11e68b346760794bf1d79cc3f38b9394268ae03754f3fe074d958238bab","last_reissued_at":"2026-07-04T15:49:09.394691Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:49:09.394691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Graphene under hydrostatic pressure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Eugene Gregoryanz, John E. Proctor, Jonathan N. Coleman, Konstantin S. Novoselov, Matthew P. Halsall, Mustafa Lotya","submitted_at":"2009-05-19T13:29:44Z","abstract_excerpt":"In-situ high pressure Raman spectroscopy is used to study monolayer, bilayer and few-layer graphene samples supported on silicon in a diamond anvil cell to 3.5 GPa. The results show that monolayer graphene adheres to the silicon substrate under compressive stress. A clear trend in this behaviour as a function of graphene sample thickness is observed. We also study unsupported graphene samples in a diamond anvil cell to 8 GPa, and show that the properties of graphene under compression are intrinsically similar to graphite. Our results demonstrate the differing effects of uniaxial and biaxial st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0905.3103","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0905.3103/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"0905.3103","created_at":"2026-07-04T15:49:09.394748+00:00"},{"alias_kind":"arxiv_version","alias_value":"0905.3103v2","created_at":"2026-07-04T15:49:09.394748+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0905.3103","created_at":"2026-07-04T15:49:09.394748+00:00"},{"alias_kind":"pith_short_12","alias_value":"7NF5CHTIWNDH","created_at":"2026-07-04T15:49:09.394748+00:00"},{"alias_kind":"pith_short_16","alias_value":"7NF5CHTIWNDHMB4U","created_at":"2026-07-04T15:49:09.394748+00:00"},{"alias_kind":"pith_short_8","alias_value":"7NF5CHTI","created_at":"2026-07-04T15:49:09.394748+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC","json":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC.json","graph_json":"https://pith.science/api/pith-number/7NF5CHTIWNDHMB4UX4OXTTB7HC/graph.json","events_json":"https://pith.science/api/pith-number/7NF5CHTIWNDHMB4UX4OXTTB7HC/events.json","paper":"https://pith.science/paper/7NF5CHTI"},"agent_actions":{"view_html":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC","download_json":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC.json","view_paper":"https://pith.science/paper/7NF5CHTI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0905.3103&json=true","fetch_graph":"https://pith.science/api/pith-number/7NF5CHTIWNDHMB4UX4OXTTB7HC/graph.json","fetch_events":"https://pith.science/api/pith-number/7NF5CHTIWNDHMB4UX4OXTTB7HC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC/action/storage_attestation","attest_author":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC/action/author_attestation","sign_citation":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC/action/citation_signature","submit_replication":"https://pith.science/pith/7NF5CHTIWNDHMB4UX4OXTTB7HC/action/replication_record"}},"created_at":"2026-07-04T15:49:09.394748+00:00","updated_at":"2026-07-04T15:49:09.394748+00:00"}