{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:4YWPNBEQCKE4PE6NZYRUM5XEKY","short_pith_number":"pith:4YWPNBEQ","canonical_record":{"source":{"id":"1908.02621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-06T10:11:04Z","cross_cats_sorted":[],"title_canon_sha256":"2c293baa1314730f22f006b04cb6a1f3fa0b00751469ba5af8189631b2b80a5c","abstract_canon_sha256":"2b90f414f7e1dbffec073889b1e9e415910dfad4afd72e2189c1dc044a11699a"},"schema_version":"1.0"},"canonical_sha256":"e62cf684901289c793cdce234676e4563561ea8e1085ed281ce05d68a4ae500c","source":{"kind":"arxiv","id":"1908.02621","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02621","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02621v1","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02621","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_12","alias_value":"4YWPNBEQCKE4","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_16","alias_value":"4YWPNBEQCKE4PE6N","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_8","alias_value":"4YWPNBEQ","created_at":"2026-07-04T23:52:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:4YWPNBEQCKE4PE6NZYRUM5XEKY","target":"record","payload":{"canonical_record":{"source":{"id":"1908.02621","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-06T10:11:04Z","cross_cats_sorted":[],"title_canon_sha256":"2c293baa1314730f22f006b04cb6a1f3fa0b00751469ba5af8189631b2b80a5c","abstract_canon_sha256":"2b90f414f7e1dbffec073889b1e9e415910dfad4afd72e2189c1dc044a11699a"},"schema_version":"1.0"},"canonical_sha256":"e62cf684901289c793cdce234676e4563561ea8e1085ed281ce05d68a4ae500c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:10.883387Z","signature_b64":"SUglnJMGwDgpCcsBnGKTV2jFJutmA+QeMLKvH4Ge5de+PSfZzdMsyWDAlmTK9xJSuk6OVpZCcgtLdK0PZYXJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e62cf684901289c793cdce234676e4563561ea8e1085ed281ce05d68a4ae500c","last_reissued_at":"2026-07-04T23:52:10.882933Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:10.882933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.02621","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":"2026-07-04T23:52:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OenNrkX+fROGc+1FVhLGw1OvllchsKCuvrjOF7EtjAnY05BgWOBz2H+yAj8kMGjzKJWcg9UiB0jxv4+AzqmEAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:02:51.424524Z"},"content_sha256":"3aab88dce6d9dfe199743fc8fe84b9a61a80e6dfaeed9ded74628396529c7cf5","schema_version":"1.0","event_id":"sha256:3aab88dce6d9dfe199743fc8fe84b9a61a80e6dfaeed9ded74628396529c7cf5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:4YWPNBEQCKE4PE6NZYRUM5XEKY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Dirac nodal line network in non-symmorphic rutile semimetal RuO$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Aaron Bostwick, Arnaud Magrez, Chris Jozwiak, Domenico Di Sante, Eli Rotenberg, Helmuth Berger, Kevin E. Smith, Philippe Bugnon, Roland J. Koch, Ronny Thomale, Silke Biermann, Simon Moser, Swarup K. Panda, Vedran Jovic","submitted_at":"2019-08-06T10:11:04Z","abstract_excerpt":"We employ angle resolved photoemission spectroscopy (ARPES) to investigate the Fermi surface of RuO$_2$. We find a network of two Dirac nodal lines (DNL) as previously predicted in theory, where the valence- and conduction bands touch along continuous lines in momentum space. In addition, we find evidence for a third DNL close to the Fermi level which appears robust despite the presence of significant spin orbit coupling. We demonstrate that the third DNL gives rise to a topologically trivial flat-band surface state (FBSS) at the (110) surface. This FBSS can be tuned by surface doping and pres"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02621","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.02621/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T23:52:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uKYYnUUT9Nk60mSuXaZYN9m24IHqVa5XQuz7/ECxBxfXhPwkbA/Y41o4zYmDnEabZuqzmYogVGCHG1iruqaiCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T19:02:51.425137Z"},"content_sha256":"b4735ae76e8c3cf0beb08f9009fda505bdaf05cf3170b0bb30f092db28aea9b7","schema_version":"1.0","event_id":"sha256:b4735ae76e8c3cf0beb08f9009fda505bdaf05cf3170b0bb30f092db28aea9b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/bundle.json","state_url":"https://pith.science/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/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":"2026-08-19T19:02:51Z","links":{"resolver":"https://pith.science/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY","bundle":"https://pith.science/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/bundle.json","state":"https://pith.science/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4YWPNBEQCKE4PE6NZYRUM5XEKY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:4YWPNBEQCKE4PE6NZYRUM5XEKY","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":"2b90f414f7e1dbffec073889b1e9e415910dfad4afd72e2189c1dc044a11699a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-06T10:11:04Z","title_canon_sha256":"2c293baa1314730f22f006b04cb6a1f3fa0b00751469ba5af8189631b2b80a5c"},"schema_version":"1.0","source":{"id":"1908.02621","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.02621","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"arxiv_version","alias_value":"1908.02621v1","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.02621","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_12","alias_value":"4YWPNBEQCKE4","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_16","alias_value":"4YWPNBEQCKE4PE6N","created_at":"2026-07-04T23:52:10Z"},{"alias_kind":"pith_short_8","alias_value":"4YWPNBEQ","created_at":"2026-07-04T23:52:10Z"}],"graph_snapshots":[{"event_id":"sha256:b4735ae76e8c3cf0beb08f9009fda505bdaf05cf3170b0bb30f092db28aea9b7","target":"graph","created_at":"2026-07-04T23:52:10Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.02621/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We employ angle resolved photoemission spectroscopy (ARPES) to investigate the Fermi surface of RuO$_2$. We find a network of two Dirac nodal lines (DNL) as previously predicted in theory, where the valence- and conduction bands touch along continuous lines in momentum space. In addition, we find evidence for a third DNL close to the Fermi level which appears robust despite the presence of significant spin orbit coupling. We demonstrate that the third DNL gives rise to a topologically trivial flat-band surface state (FBSS) at the (110) surface. This FBSS can be tuned by surface doping and pres","authors_text":"Aaron Bostwick, Arnaud Magrez, Chris Jozwiak, Domenico Di Sante, Eli Rotenberg, Helmuth Berger, Kevin E. Smith, Philippe Bugnon, Roland J. Koch, Ronny Thomale, Silke Biermann, Simon Moser, Swarup K. Panda, Vedran Jovic","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-06T10:11:04Z","title":"The Dirac nodal line network in non-symmorphic rutile semimetal RuO$_2$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.02621","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":"sha256:3aab88dce6d9dfe199743fc8fe84b9a61a80e6dfaeed9ded74628396529c7cf5","target":"record","created_at":"2026-07-04T23:52:10Z","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":"2b90f414f7e1dbffec073889b1e9e415910dfad4afd72e2189c1dc044a11699a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-06T10:11:04Z","title_canon_sha256":"2c293baa1314730f22f006b04cb6a1f3fa0b00751469ba5af8189631b2b80a5c"},"schema_version":"1.0","source":{"id":"1908.02621","kind":"arxiv","version":1}},"canonical_sha256":"e62cf684901289c793cdce234676e4563561ea8e1085ed281ce05d68a4ae500c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e62cf684901289c793cdce234676e4563561ea8e1085ed281ce05d68a4ae500c","first_computed_at":"2026-07-04T23:52:10.882933Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:10.882933Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SUglnJMGwDgpCcsBnGKTV2jFJutmA+QeMLKvH4Ge5de+PSfZzdMsyWDAlmTK9xJSuk6OVpZCcgtLdK0PZYXJCQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:10.883387Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.02621","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3aab88dce6d9dfe199743fc8fe84b9a61a80e6dfaeed9ded74628396529c7cf5","sha256:b4735ae76e8c3cf0beb08f9009fda505bdaf05cf3170b0bb30f092db28aea9b7"],"state_sha256":"06fc06bdb0cfc133a6cab395087b8082f960c097ed86165383fc597b9549732f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oXS/xtJNcM154llFJRfBjHR7NUULkt+LcoqMNPnR+XZGOvPDY5Tp4GDaYcbS0kCFQFcMecUl0iCQZXYNFe6EBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T19:02:51.431508Z","bundle_sha256":"18d43c017860548315bb9ba6f1524de53b58a730713203c45208ff61cef18653"}}