{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:3BYCJ37GJSMVXUDTQHEWOE2MD3","short_pith_number":"pith:3BYCJ37G","canonical_record":{"source":{"id":"cond-mat/0012001","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-12-01T19:43:44Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"806a46b3c4df58e9ca0a226f1c895a399696c75f43aadc1f5f7358a5ec3d71b3","abstract_canon_sha256":"2fa221ce6ace3d40254b5d2c111744ba5e84b5fb4d3cd348c0d2bba2a4ae7e00"},"schema_version":"1.0"},"canonical_sha256":"d87024efe64c995bd07381c967134c1ec3694a19e546f91f9f7f8eed502221e3","source":{"kind":"arxiv","id":"cond-mat/0012001","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0012001","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0012001v1","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0012001","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_12","alias_value":"3BYCJ37GJSMV","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_16","alias_value":"3BYCJ37GJSMVXUDT","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_8","alias_value":"3BYCJ37G","created_at":"2026-07-04T14:18:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:3BYCJ37GJSMVXUDTQHEWOE2MD3","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0012001","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-12-01T19:43:44Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"806a46b3c4df58e9ca0a226f1c895a399696c75f43aadc1f5f7358a5ec3d71b3","abstract_canon_sha256":"2fa221ce6ace3d40254b5d2c111744ba5e84b5fb4d3cd348c0d2bba2a4ae7e00"},"schema_version":"1.0"},"canonical_sha256":"d87024efe64c995bd07381c967134c1ec3694a19e546f91f9f7f8eed502221e3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:18:12.081390Z","signature_b64":"z54haAl/ftyIjcsJ8o+omIZ28SqlB8fzhJLKvUcEK0aH64CMhID6S4QhUixB4gtwwFZ4vWTfz7cffI+FIcd/Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d87024efe64c995bd07381c967134c1ec3694a19e546f91f9f7f8eed502221e3","last_reissued_at":"2026-07-04T14:18:12.081038Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:18:12.081038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0012001","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":"2026-07-04T14:18:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MjAA95A3+blAXcCcV+zYyfjgjt7IHzDEkTyvkODKfjN/+hs5mxhJaKvblfTrDqkAqy4fVRCgrR5xdLJ0cI9ZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:55:00.276005Z"},"content_sha256":"602a40ea869c217de11a54e5b8964d6885ba07fa9b505692f4c55c7e83d1637e","schema_version":"1.0","event_id":"sha256:602a40ea869c217de11a54e5b8964d6885ba07fa9b505692f4c55c7e83d1637e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:3BYCJ37GJSMVXUDTQHEWOE2MD3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermi surface of Sr2RuO4 from angle resolved photoemission","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"A.Damascelli, C. Kim, D.H. Lu, D.L. Feng, F. Ronning, K.M. Shen, N.P. Armitage, T. Kimura, Y. Maeno (Kyoto University), Y. Tokura (Tokyo University), Z.Q. Mao, Z.-X. Shen (Stanford University)","submitted_at":"2000-12-01T19:43:44Z","abstract_excerpt":"We investigated the low-energy electronic structure of Sr2RuO4 by angle-resolved photoemission spectroscopy (ARPES) focusing, in particular, on the controversial issues of the Fermi surface (FS) topology and of the extended van Hove singularity (evHs). A detailed study of temperature and photon energy dependence demonstrates the surface-state nature of the electronic band responsible for the evHs, and may suggest the presence of ferromagnetic correlations at the surface. In addition, we detected a replica of the primary FS that indicates a (sqrt2 x sqrt2) surface reconstruction, as confirmed b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0012001","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/cond-mat/0012001/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":"2026-07-04T14:18:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"db4lrTGKNfroVBPT027ZVIqaWAlUEZpsONxapgftgZEjHYjQebLhdNSR0bhj80TIzhvKIY5mln3vyVF6XbHQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:55:00.276397Z"},"content_sha256":"25eee07fc4fcab1635b885a11336841f9d87d8b5990b22b1dc191afd5f5b4868","schema_version":"1.0","event_id":"sha256:25eee07fc4fcab1635b885a11336841f9d87d8b5990b22b1dc191afd5f5b4868"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/bundle.json","state_url":"https://pith.science/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/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":"2026-07-05T11:55:00Z","links":{"resolver":"https://pith.science/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3","bundle":"https://pith.science/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/bundle.json","state":"https://pith.science/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3BYCJ37GJSMVXUDTQHEWOE2MD3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:3BYCJ37GJSMVXUDTQHEWOE2MD3","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":"2fa221ce6ace3d40254b5d2c111744ba5e84b5fb4d3cd348c0d2bba2a4ae7e00","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-12-01T19:43:44Z","title_canon_sha256":"806a46b3c4df58e9ca0a226f1c895a399696c75f43aadc1f5f7358a5ec3d71b3"},"schema_version":"1.0","source":{"id":"cond-mat/0012001","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0012001","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0012001v1","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0012001","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_12","alias_value":"3BYCJ37GJSMV","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_16","alias_value":"3BYCJ37GJSMVXUDT","created_at":"2026-07-04T14:18:12Z"},{"alias_kind":"pith_short_8","alias_value":"3BYCJ37G","created_at":"2026-07-04T14:18:12Z"}],"graph_snapshots":[{"event_id":"sha256:25eee07fc4fcab1635b885a11336841f9d87d8b5990b22b1dc191afd5f5b4868","target":"graph","created_at":"2026-07-04T14:18:12Z","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/cond-mat/0012001/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigated the low-energy electronic structure of Sr2RuO4 by angle-resolved photoemission spectroscopy (ARPES) focusing, in particular, on the controversial issues of the Fermi surface (FS) topology and of the extended van Hove singularity (evHs). A detailed study of temperature and photon energy dependence demonstrates the surface-state nature of the electronic band responsible for the evHs, and may suggest the presence of ferromagnetic correlations at the surface. In addition, we detected a replica of the primary FS that indicates a (sqrt2 x sqrt2) surface reconstruction, as confirmed b","authors_text":"A.Damascelli, C. Kim, D.H. Lu, D.L. Feng, F. Ronning, K.M. Shen, N.P. Armitage, T. Kimura, Y. Maeno (Kyoto University), Y. Tokura (Tokyo University), Z.Q. Mao, Z.-X. Shen (Stanford University)","cross_cats":["cond-mat.supr-con"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-12-01T19:43:44Z","title":"Fermi surface of Sr2RuO4 from angle resolved photoemission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0012001","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":"sha256:602a40ea869c217de11a54e5b8964d6885ba07fa9b505692f4c55c7e83d1637e","target":"record","created_at":"2026-07-04T14:18:12Z","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":"2fa221ce6ace3d40254b5d2c111744ba5e84b5fb4d3cd348c0d2bba2a4ae7e00","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2000-12-01T19:43:44Z","title_canon_sha256":"806a46b3c4df58e9ca0a226f1c895a399696c75f43aadc1f5f7358a5ec3d71b3"},"schema_version":"1.0","source":{"id":"cond-mat/0012001","kind":"arxiv","version":1}},"canonical_sha256":"d87024efe64c995bd07381c967134c1ec3694a19e546f91f9f7f8eed502221e3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d87024efe64c995bd07381c967134c1ec3694a19e546f91f9f7f8eed502221e3","first_computed_at":"2026-07-04T14:18:12.081038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:18:12.081038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z54haAl/ftyIjcsJ8o+omIZ28SqlB8fzhJLKvUcEK0aH64CMhID6S4QhUixB4gtwwFZ4vWTfz7cffI+FIcd/Dg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:18:12.081390Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0012001","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:602a40ea869c217de11a54e5b8964d6885ba07fa9b505692f4c55c7e83d1637e","sha256:25eee07fc4fcab1635b885a11336841f9d87d8b5990b22b1dc191afd5f5b4868"],"state_sha256":"136d535da93fff9f07e96b573e2ced2bfc13928207918ec0d6121bc31399d029"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mlr0pF3yXe3ZWXEj5y9bbFrCw1WLvoDCFIJQn9rI0pamzsYnsqylNz5H3nN+a0jaYTLL6X8UiRIUULRNlqATBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T11:55:00.278436Z","bundle_sha256":"fd574fe881bdfe0dc2f009854fec1e74cbf0f952172c8690fd5d1ac7d9c69103"}}