{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6QNSPBIFAGHIG57QP7JAURKZHP","short_pith_number":"pith:6QNSPBIF","canonical_record":{"source":{"id":"1806.02521","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-07T05:53:22Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6d1c506dd45c29ef76f6cecd3bebbfa15411536c88370eb537adc3f438ef229e","abstract_canon_sha256":"c87f1b793c13e1460c3d5132a45563f48ad8ca4812fa5742eaa8fec14dbaa4dc"},"schema_version":"1.0"},"canonical_sha256":"f41b278505018e8377f07fd20a45593bde8b286aa9df042cab15446aaec083f0","source":{"kind":"arxiv","id":"1806.02521","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02521","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02521v1","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02521","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"pith_short_12","alias_value":"6QNSPBIFAGHI","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6QNSPBIFAGHIG57Q","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6QNSPBIF","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6QNSPBIFAGHIG57QP7JAURKZHP","target":"record","payload":{"canonical_record":{"source":{"id":"1806.02521","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-07T05:53:22Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"6d1c506dd45c29ef76f6cecd3bebbfa15411536c88370eb537adc3f438ef229e","abstract_canon_sha256":"c87f1b793c13e1460c3d5132a45563f48ad8ca4812fa5742eaa8fec14dbaa4dc"},"schema_version":"1.0"},"canonical_sha256":"f41b278505018e8377f07fd20a45593bde8b286aa9df042cab15446aaec083f0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:37.772926Z","signature_b64":"j8nCCQfCLS/rx6CI1F4TiOjf6gV9j+yc9KxbiPdgUJ1Ck3Adxeg27rPF5BCyWGLHUZDKohNUX73UrYyHmnXmCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f41b278505018e8377f07fd20a45593bde8b286aa9df042cab15446aaec083f0","last_reissued_at":"2026-05-18T00:12:37.772274Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:37.772274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.02521","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":"2026-05-18T00:12:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JpRI23OXv9qKDfa9dd6Ci8DR4zkozX4j1B2IjHk4u8Y466HHKe8DZ9bRtgx5elZQQM4AfngdVEZQ0mLzXg3dBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:06:50.081699Z"},"content_sha256":"766dc85cdfa836012dbe9b83bbc39a5a9e8adefd9883281d7ec4be4a950f03c4","schema_version":"1.0","event_id":"sha256:766dc85cdfa836012dbe9b83bbc39a5a9e8adefd9883281d7ec4be4a950f03c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6QNSPBIFAGHIG57QP7JAURKZHP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental and Theoretical Electronic Structure and Symmetry Effects in Ultrathin NbSe2 Films","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Cai-Zhi Xu, David Flototto, Guang Bian, Joseph Andrew Hlevyack, Meng-Kai Lin, Peng Chen, Sung-Kwan Mo, Tai-Chang Chiang, Xiaoxiong Wang","submitted_at":"2018-06-07T05:53:22Z","abstract_excerpt":"Layered quasi-two-dimensional transition metal dichalcogenides (TMDCs), which can be readily made in ultrathin films, offer excellent opportunities for studying how dimensionality affects electronic structure and physical properties. Among all TMDCs, NbSe2 is of special interest; bulk NbSe2 hosts a charge-density-wave phase at low temperatures and has the highest known superconducting transition temperature, and these properties can be substantially modified in the ultrathin film limit. Motivated by these effects, we report herein a study of few-layer NbSe2 films, with a well-defined single-do"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02521","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":"2026-05-18T00:12:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IjZy2z5qhGhSY5+uM1xqSf2suxb/LbNBjwfYM/Qk9dcdV8yF1dnvaxCJPJWvByVMJoPmFQPkKgRRsZu/HX8oBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T18:06:50.082338Z"},"content_sha256":"2812e51e03fb2abfe00bb0eb7e28a4fd95ed26657c2f45e53fae2631eb345f14","schema_version":"1.0","event_id":"sha256:2812e51e03fb2abfe00bb0eb7e28a4fd95ed26657c2f45e53fae2631eb345f14"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QNSPBIFAGHIG57QP7JAURKZHP/bundle.json","state_url":"https://pith.science/pith/6QNSPBIFAGHIG57QP7JAURKZHP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QNSPBIFAGHIG57QP7JAURKZHP/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":"2026-05-30T18:06:50Z","links":{"resolver":"https://pith.science/pith/6QNSPBIFAGHIG57QP7JAURKZHP","bundle":"https://pith.science/pith/6QNSPBIFAGHIG57QP7JAURKZHP/bundle.json","state":"https://pith.science/pith/6QNSPBIFAGHIG57QP7JAURKZHP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QNSPBIFAGHIG57QP7JAURKZHP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6QNSPBIFAGHIG57QP7JAURKZHP","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":"c87f1b793c13e1460c3d5132a45563f48ad8ca4812fa5742eaa8fec14dbaa4dc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-07T05:53:22Z","title_canon_sha256":"6d1c506dd45c29ef76f6cecd3bebbfa15411536c88370eb537adc3f438ef229e"},"schema_version":"1.0","source":{"id":"1806.02521","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.02521","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"arxiv_version","alias_value":"1806.02521v1","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.02521","created_at":"2026-05-18T00:12:37Z"},{"alias_kind":"pith_short_12","alias_value":"6QNSPBIFAGHI","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"6QNSPBIFAGHIG57Q","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"6QNSPBIF","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:2812e51e03fb2abfe00bb0eb7e28a4fd95ed26657c2f45e53fae2631eb345f14","target":"graph","created_at":"2026-05-18T00:12:37Z","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":"Layered quasi-two-dimensional transition metal dichalcogenides (TMDCs), which can be readily made in ultrathin films, offer excellent opportunities for studying how dimensionality affects electronic structure and physical properties. Among all TMDCs, NbSe2 is of special interest; bulk NbSe2 hosts a charge-density-wave phase at low temperatures and has the highest known superconducting transition temperature, and these properties can be substantially modified in the ultrathin film limit. Motivated by these effects, we report herein a study of few-layer NbSe2 films, with a well-defined single-do","authors_text":"Cai-Zhi Xu, David Flototto, Guang Bian, Joseph Andrew Hlevyack, Meng-Kai Lin, Peng Chen, Sung-Kwan Mo, Tai-Chang Chiang, Xiaoxiong Wang","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-07T05:53:22Z","title":"Experimental and Theoretical Electronic Structure and Symmetry Effects in Ultrathin NbSe2 Films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.02521","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":"sha256:766dc85cdfa836012dbe9b83bbc39a5a9e8adefd9883281d7ec4be4a950f03c4","target":"record","created_at":"2026-05-18T00:12:37Z","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":"c87f1b793c13e1460c3d5132a45563f48ad8ca4812fa5742eaa8fec14dbaa4dc","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-06-07T05:53:22Z","title_canon_sha256":"6d1c506dd45c29ef76f6cecd3bebbfa15411536c88370eb537adc3f438ef229e"},"schema_version":"1.0","source":{"id":"1806.02521","kind":"arxiv","version":1}},"canonical_sha256":"f41b278505018e8377f07fd20a45593bde8b286aa9df042cab15446aaec083f0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f41b278505018e8377f07fd20a45593bde8b286aa9df042cab15446aaec083f0","first_computed_at":"2026-05-18T00:12:37.772274Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:37.772274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j8nCCQfCLS/rx6CI1F4TiOjf6gV9j+yc9KxbiPdgUJ1Ck3Adxeg27rPF5BCyWGLHUZDKohNUX73UrYyHmnXmCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:37.772926Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.02521","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:766dc85cdfa836012dbe9b83bbc39a5a9e8adefd9883281d7ec4be4a950f03c4","sha256:2812e51e03fb2abfe00bb0eb7e28a4fd95ed26657c2f45e53fae2631eb345f14"],"state_sha256":"e70041a65018fcb3be5eca27daa2b3d2cb0a96b969876f095c15fd61919e0520"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f5Lmu6gQvL2Ke7nsMB0tyNRTwGizM/2o/sXHgT620fqR2s5cZpmt5yzoqUqeR1jaSp0CHN0BhSWQw7dZiSDhAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T18:06:50.085230Z","bundle_sha256":"92a4f46e9d3a71556192092591e18b6ca6ac22d51112f46970d302fc6382f5e4"}}