{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:FDYP4XB4X3JQGKS4WNJEUXQM33","short_pith_number":"pith:FDYP4XB4","canonical_record":{"source":{"id":"1009.0243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T18:46:42Z","cross_cats_sorted":[],"title_canon_sha256":"58d606fb9746ea4631d010acd365b3244f29bf25a09612e5b8e30f8240c9d4ae","abstract_canon_sha256":"1c5ea29933e4fdbab363bdf983c2cca1f206ed1162c110876164ee3d6d16dd86"},"schema_version":"1.0"},"canonical_sha256":"28f0fe5c3cbed3032a5cb3524a5e0cdef25be3bb5ca15d77a4978e77b45693c8","source":{"kind":"arxiv","id":"1009.0243","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0243","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0243v1","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0243","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"FDYP4XB4X3JQ","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"FDYP4XB4X3JQGKS4","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"FDYP4XB4","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:FDYP4XB4X3JQGKS4WNJEUXQM33","target":"record","payload":{"canonical_record":{"source":{"id":"1009.0243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T18:46:42Z","cross_cats_sorted":[],"title_canon_sha256":"58d606fb9746ea4631d010acd365b3244f29bf25a09612e5b8e30f8240c9d4ae","abstract_canon_sha256":"1c5ea29933e4fdbab363bdf983c2cca1f206ed1162c110876164ee3d6d16dd86"},"schema_version":"1.0"},"canonical_sha256":"28f0fe5c3cbed3032a5cb3524a5e0cdef25be3bb5ca15d77a4978e77b45693c8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:41:35.331737Z","signature_b64":"oOnbhf2WtdBl1787nntwLVOxYKhFZweY9Aq9G6XEnDgMTzCqe/qXPwC5AdY8qFNAtbGPQbT1pwtfEz+lQTD1CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28f0fe5c3cbed3032a5cb3524a5e0cdef25be3bb5ca15d77a4978e77b45693c8","last_reissued_at":"2026-05-18T04:41:35.331245Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:41:35.331245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.0243","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":"2026-05-18T04:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/pnn98dn5e7FGmHJhzKP4oBbgxC6AHnJVGDTSMaH/kRHnWEsPOf1C3v17NSgqGwnGAvnt7tBM/7NbglF6mlUCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T00:18:07.132711Z"},"content_sha256":"4a43e3111e4ab89c52985448743a84eda01c9860f7f24d70d470124368a08711","schema_version":"1.0","event_id":"sha256:4a43e3111e4ab89c52985448743a84eda01c9860f7f24d70d470124368a08711"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:FDYP4XB4X3JQGKS4WNJEUXQM33","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Semiconducting chains of gold and silver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Frederico Fioravante, R. W. Nunes","submitted_at":"2010-09-01T18:46:42Z","abstract_excerpt":"The authors introduce a geometry for ultrathin Au and Ag wires that ab initio calculations indicate to be more stable than previously considered planar geometries for these systems, by about 0.1 eV per atom. This structure is insulating for both metals and for related Ag_(0.5)-Au_(0.5) alloys, with gaps of 1.3 eV for Au, 0.8 eV for Ag, and varying between 0.1 eV and 1.9 eV for the alloys. The insulating nature of the geometry is not a result of Peierls instabilities, and is analyzed in terms of an interplay between geometric and electronic structure effects."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0243","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":"2026-05-18T04:41:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p5orR8iKQ9B5GpJgYYZfUCeOhq5UEqccgxp34pHS9Ixv4k6sXDtUIUzNJHVaPo5PA2hAVfurgu+YxSTK05zsAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T00:18:07.133414Z"},"content_sha256":"461b399b9c6536b23a45f577d5d42b45be675f72497c6ca5055b6646ba497e95","schema_version":"1.0","event_id":"sha256:461b399b9c6536b23a45f577d5d42b45be675f72497c6ca5055b6646ba497e95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/bundle.json","state_url":"https://pith.science/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/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":"2026-06-08T00:18:07Z","links":{"resolver":"https://pith.science/pith/FDYP4XB4X3JQGKS4WNJEUXQM33","bundle":"https://pith.science/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/bundle.json","state":"https://pith.science/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FDYP4XB4X3JQGKS4WNJEUXQM33/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:FDYP4XB4X3JQGKS4WNJEUXQM33","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":"1c5ea29933e4fdbab363bdf983c2cca1f206ed1162c110876164ee3d6d16dd86","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T18:46:42Z","title_canon_sha256":"58d606fb9746ea4631d010acd365b3244f29bf25a09612e5b8e30f8240c9d4ae"},"schema_version":"1.0","source":{"id":"1009.0243","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.0243","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"arxiv_version","alias_value":"1009.0243v1","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.0243","created_at":"2026-05-18T04:41:35Z"},{"alias_kind":"pith_short_12","alias_value":"FDYP4XB4X3JQ","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"FDYP4XB4X3JQGKS4","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"FDYP4XB4","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:461b399b9c6536b23a45f577d5d42b45be675f72497c6ca5055b6646ba497e95","target":"graph","created_at":"2026-05-18T04:41:35Z","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 authors introduce a geometry for ultrathin Au and Ag wires that ab initio calculations indicate to be more stable than previously considered planar geometries for these systems, by about 0.1 eV per atom. This structure is insulating for both metals and for related Ag_(0.5)-Au_(0.5) alloys, with gaps of 1.3 eV for Au, 0.8 eV for Ag, and varying between 0.1 eV and 1.9 eV for the alloys. The insulating nature of the geometry is not a result of Peierls instabilities, and is analyzed in terms of an interplay between geometric and electronic structure effects.","authors_text":"Frederico Fioravante, R. W. Nunes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T18:46:42Z","title":"Semiconducting chains of gold and silver"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.0243","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":"sha256:4a43e3111e4ab89c52985448743a84eda01c9860f7f24d70d470124368a08711","target":"record","created_at":"2026-05-18T04:41:35Z","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":"1c5ea29933e4fdbab363bdf983c2cca1f206ed1162c110876164ee3d6d16dd86","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-09-01T18:46:42Z","title_canon_sha256":"58d606fb9746ea4631d010acd365b3244f29bf25a09612e5b8e30f8240c9d4ae"},"schema_version":"1.0","source":{"id":"1009.0243","kind":"arxiv","version":1}},"canonical_sha256":"28f0fe5c3cbed3032a5cb3524a5e0cdef25be3bb5ca15d77a4978e77b45693c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28f0fe5c3cbed3032a5cb3524a5e0cdef25be3bb5ca15d77a4978e77b45693c8","first_computed_at":"2026-05-18T04:41:35.331245Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:41:35.331245Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oOnbhf2WtdBl1787nntwLVOxYKhFZweY9Aq9G6XEnDgMTzCqe/qXPwC5AdY8qFNAtbGPQbT1pwtfEz+lQTD1CA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:41:35.331737Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.0243","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4a43e3111e4ab89c52985448743a84eda01c9860f7f24d70d470124368a08711","sha256:461b399b9c6536b23a45f577d5d42b45be675f72497c6ca5055b6646ba497e95"],"state_sha256":"634c33a0450f82ee62007283da5662027e6d779294b79c39fd4863d36df16018"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j9F4ObnvkZQLMc7KUpeZF9o3CBUuaQcMgfVzLCE9NrfMy3XQyigohah452uDdSUTwbbPtiViumQFxGTLp8X7AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T00:18:07.136958Z","bundle_sha256":"6ec9ebe04c8592bfa8966eab4954c68469404e7dbc1debd3b61456a76a28ae64"}}