{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XUCU3YX42KWSYR6POY2MXIXAPR","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":"3b7e784bccc8dfc82193bf4f01c159d1ed0423fe40285cca27776db82ca9b662","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-11T11:33:30Z","title_canon_sha256":"f045846dbaf8a7669b0d90251bdea8e9570e6b397e4f07381e34d79af423933f"},"schema_version":"1.0","source":{"id":"1505.02572","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.02572","created_at":"2026-05-18T00:56:26Z"},{"alias_kind":"arxiv_version","alias_value":"1505.02572v2","created_at":"2026-05-18T00:56:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.02572","created_at":"2026-05-18T00:56:26Z"},{"alias_kind":"pith_short_12","alias_value":"XUCU3YX42KWS","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XUCU3YX42KWSYR6P","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XUCU3YX4","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:1750c49f4bb470cde27b683342aadfa2d9bf42051d1ed317d54ef9a824f8de4c","target":"graph","created_at":"2026-05-18T00:56:26Z","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":"The problem of determining a metal's Fermi surface from measurements of projections of the electron or electron/positron momentum densities, such as obtained by Compton Scattering or Angular Correlation of Positron Annihilation Radiation, respectively, is considered in a Bayesian formulation. A consistent approach is presented and its advantages compared to previous practice is discussed. A validation of the proposed method on simulated data shows its systematic accuracy to be very satisfactory and its statistical precision on modest experimental data to be surprisingly good.","authors_text":"Hubert Ceeh, Josef-Andreas Weber, Michael Leitner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-11T11:33:30Z","title":"Fermi surface determination from momentum density projections"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.02572","kind":"arxiv","version":2},"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":"sha256:9f4b599300cc32954181ca7aa9acaf0c7a105dd4bbbeef64f24cdfbd3f4ef3bc","target":"record","created_at":"2026-05-18T00:56:26Z","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":"3b7e784bccc8dfc82193bf4f01c159d1ed0423fe40285cca27776db82ca9b662","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-11T11:33:30Z","title_canon_sha256":"f045846dbaf8a7669b0d90251bdea8e9570e6b397e4f07381e34d79af423933f"},"schema_version":"1.0","source":{"id":"1505.02572","kind":"arxiv","version":2}},"canonical_sha256":"bd054de2fcd2ad2c47cf7634cba2e07c6cc3617dbaf6a3c87d74e2edec8818cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bd054de2fcd2ad2c47cf7634cba2e07c6cc3617dbaf6a3c87d74e2edec8818cb","first_computed_at":"2026-05-18T00:56:26.109193Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:26.109193Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9EatXbfGjftmcRl2qjthy8Sb3VEgSPAiu7FUh4+9bKXsYix3rnDNslYiGCVJX1U2iYpEKbXbBqybXLSh5E4QAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:26.109786Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.02572","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f4b599300cc32954181ca7aa9acaf0c7a105dd4bbbeef64f24cdfbd3f4ef3bc","sha256:1750c49f4bb470cde27b683342aadfa2d9bf42051d1ed317d54ef9a824f8de4c"],"state_sha256":"457eba35442f01315e8fe84a0d3ad450476f831c2375565b13b0b9bbe53dd05b"}