{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:Q33M6NMUGBX5LE7LCSMS7N3PCR","short_pith_number":"pith:Q33M6NMU","canonical_record":{"source":{"id":"1810.12564","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-30T08:04:39Z","cross_cats_sorted":[],"title_canon_sha256":"21d14fe859ca5721f03be5005e18dd5a87fff7e428909977d0d8ce5b725cffb2","abstract_canon_sha256":"2b5706940f156c3887bbe9070b065b40aa869d89b18f82010eec531f23ce02f5"},"schema_version":"1.0"},"canonical_sha256":"86f6cf3594306fd593eb14992fb76f144af73d4b27afe94e5dfbec944988d9d4","source":{"kind":"arxiv","id":"1810.12564","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12564","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12564v4","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12564","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"pith_short_12","alias_value":"Q33M6NMUGBX5","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q33M6NMUGBX5LE7L","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q33M6NMU","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:Q33M6NMUGBX5LE7LCSMS7N3PCR","target":"record","payload":{"canonical_record":{"source":{"id":"1810.12564","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-30T08:04:39Z","cross_cats_sorted":[],"title_canon_sha256":"21d14fe859ca5721f03be5005e18dd5a87fff7e428909977d0d8ce5b725cffb2","abstract_canon_sha256":"2b5706940f156c3887bbe9070b065b40aa869d89b18f82010eec531f23ce02f5"},"schema_version":"1.0"},"canonical_sha256":"86f6cf3594306fd593eb14992fb76f144af73d4b27afe94e5dfbec944988d9d4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:03.136748Z","signature_b64":"b7ONQw6L+ANj6UXqbkuRvejhU5mrTavB7OEnOAz/qDoUkRaN8Ah+AJpInvdDPjL/iEm5LEjy0ECuMb3k0AhaAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86f6cf3594306fd593eb14992fb76f144af73d4b27afe94e5dfbec944988d9d4","last_reissued_at":"2026-05-17T23:49:03.136294Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:03.136294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.12564","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:49:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OzySSYbvWU7yoiOc03oOkZe+iCxOCdd3HienoRq5drv6+IJtVsXHIUb6786lavxfmuD9LDggcoKWAnLjTUxsAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:17:02.228862Z"},"content_sha256":"ca0833b68b4f529e5dbc270c3d49ca5aad8d03a2b97f2f57617e19ad0a997010","schema_version":"1.0","event_id":"sha256:ca0833b68b4f529e5dbc270c3d49ca5aad8d03a2b97f2f57617e19ad0a997010"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:Q33M6NMUGBX5LE7LCSMS7N3PCR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of Coulomb interaction on the two-dimensional electronic structure of the van der Waals ferromagnet Cr$_2$Ge$_2$Te$_6$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Fujimori, B. Gao, C. Lin, H. Kumigashira, J. Yu, K. Hagiwara, K. Koshiishi, K. Ono, M. Kobayashi, M. Suzuki, Seungjin Kang, S. Nakata, Sungmo Kang, S-W. Cheong, Y. X. Wan","submitted_at":"2018-10-30T08:04:39Z","abstract_excerpt":"In order to investigate the electronic properties of the semiconducting van der Waals ferromagnet Cr$_2$Ge$_2$Te$_6$ (CGT), where ferromagnetic layers are bonded through van der Waals forces, we have performed angle-resolved photoemission spectroscopy (ARPES) measurements and density-functional-theory (DFT+U) calculations. The valence-band maximum at the {\\Gamma} point is located $\\sim$ 0.2 eV below the Fermi level, consistent with the semiconducting property of CGT. Comparison of the experimental density of states with the DFT calculation has suggested that Coulomb interaction between the Cr "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12564","kind":"arxiv","version":4},"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":"2026-05-17T23:49:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t2UhrggHWaqP6s+e0QbDBywBUg6NGDA89eijlcw0dRpsy7u7X+4+oIC5mhWhvfHyJ580jEEvh3ok9Dm4siMuAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:17:02.229208Z"},"content_sha256":"0a2c8907ef688f9e2ff7e598ba6a8bf6cf321f80134217949df5e2f42cad8c41","schema_version":"1.0","event_id":"sha256:0a2c8907ef688f9e2ff7e598ba6a8bf6cf321f80134217949df5e2f42cad8c41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/bundle.json","state_url":"https://pith.science/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/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":"2026-05-20T11:17:02Z","links":{"resolver":"https://pith.science/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR","bundle":"https://pith.science/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/bundle.json","state":"https://pith.science/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q33M6NMUGBX5LE7LCSMS7N3PCR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Q33M6NMUGBX5LE7LCSMS7N3PCR","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":"2b5706940f156c3887bbe9070b065b40aa869d89b18f82010eec531f23ce02f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-30T08:04:39Z","title_canon_sha256":"21d14fe859ca5721f03be5005e18dd5a87fff7e428909977d0d8ce5b725cffb2"},"schema_version":"1.0","source":{"id":"1810.12564","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12564","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12564v4","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12564","created_at":"2026-05-17T23:49:03Z"},{"alias_kind":"pith_short_12","alias_value":"Q33M6NMUGBX5","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q33M6NMUGBX5LE7L","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q33M6NMU","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:0a2c8907ef688f9e2ff7e598ba6a8bf6cf321f80134217949df5e2f42cad8c41","target":"graph","created_at":"2026-05-17T23:49:03Z","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":"In order to investigate the electronic properties of the semiconducting van der Waals ferromagnet Cr$_2$Ge$_2$Te$_6$ (CGT), where ferromagnetic layers are bonded through van der Waals forces, we have performed angle-resolved photoemission spectroscopy (ARPES) measurements and density-functional-theory (DFT+U) calculations. The valence-band maximum at the {\\Gamma} point is located $\\sim$ 0.2 eV below the Fermi level, consistent with the semiconducting property of CGT. Comparison of the experimental density of states with the DFT calculation has suggested that Coulomb interaction between the Cr ","authors_text":"A. Fujimori, B. Gao, C. Lin, H. Kumigashira, J. Yu, K. Hagiwara, K. Koshiishi, K. Ono, M. Kobayashi, M. Suzuki, Seungjin Kang, S. Nakata, Sungmo Kang, S-W. Cheong, Y. X. Wan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-30T08:04:39Z","title":"Effect of Coulomb interaction on the two-dimensional electronic structure of the van der Waals ferromagnet Cr$_2$Ge$_2$Te$_6$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12564","kind":"arxiv","version":4},"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:ca0833b68b4f529e5dbc270c3d49ca5aad8d03a2b97f2f57617e19ad0a997010","target":"record","created_at":"2026-05-17T23:49:03Z","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":"2b5706940f156c3887bbe9070b065b40aa869d89b18f82010eec531f23ce02f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-10-30T08:04:39Z","title_canon_sha256":"21d14fe859ca5721f03be5005e18dd5a87fff7e428909977d0d8ce5b725cffb2"},"schema_version":"1.0","source":{"id":"1810.12564","kind":"arxiv","version":4}},"canonical_sha256":"86f6cf3594306fd593eb14992fb76f144af73d4b27afe94e5dfbec944988d9d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86f6cf3594306fd593eb14992fb76f144af73d4b27afe94e5dfbec944988d9d4","first_computed_at":"2026-05-17T23:49:03.136294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:03.136294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"b7ONQw6L+ANj6UXqbkuRvejhU5mrTavB7OEnOAz/qDoUkRaN8Ah+AJpInvdDPjL/iEm5LEjy0ECuMb3k0AhaAA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:03.136748Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.12564","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca0833b68b4f529e5dbc270c3d49ca5aad8d03a2b97f2f57617e19ad0a997010","sha256:0a2c8907ef688f9e2ff7e598ba6a8bf6cf321f80134217949df5e2f42cad8c41"],"state_sha256":"36cd2a2362f311045b345de56a5d6f9387ca4508fb88cae74a4b492dcb93747b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ScPaDX+J4P13E5SlOxm8g3N2CFpG7fT0QRDkfl0hlmRDpNHCg+rA+U47WUCOYiPMMKGtDXhsbp1aaO0dc2ztAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T11:17:02.231266Z","bundle_sha256":"d5ee7d4a31c884e090b37bd4cb5b67508bac8e11d7af32b44180c3365e9d2d42"}}