{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:LBYFN3EP7BPSR5CO62WFAB6K3Q","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":"67adad85af3dc77607f1b0c17c17d2e4d8d5b9ec8004bcc5b6b486185cc6c5a5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2000-12-20T20:59:22Z","title_canon_sha256":"984649681e6e86f616894c6d48ce2238d240ae18802ab66a1946cd04a59f9a19"},"schema_version":"1.0","source":{"id":"cond-mat/0012392","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0012392","created_at":"2026-07-04T16:19:33Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0012392v1","created_at":"2026-07-04T16:19:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0012392","created_at":"2026-07-04T16:19:33Z"},{"alias_kind":"pith_short_12","alias_value":"LBYFN3EP7BPS","created_at":"2026-07-04T16:19:33Z"},{"alias_kind":"pith_short_16","alias_value":"LBYFN3EP7BPSR5CO","created_at":"2026-07-04T16:19:33Z"},{"alias_kind":"pith_short_8","alias_value":"LBYFN3EP","created_at":"2026-07-04T16:19:33Z"}],"graph_snapshots":[{"event_id":"sha256:446b01eeeb3e9b3146fef4d1a426ce907c59e716d3881f674f9ed9ed13cca569","target":"graph","created_at":"2026-07-04T16:19:33Z","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/0012392/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study a disordered vibrational model system, where the spring constants k are chosen from a distribution P(k) ~ 1/k above a cut-off value k_min > 0. We can motivate this distribution by the presence of free volume in glassy materials. We show that the model system reproduces several important features of the boson peak in real glasses: (i) a low-frequency excess contribution to the Debye density of states, (ii) the hump of the specific heat c_V(T) including the power-law relation between height and position of the hump, and (iii) the transition to localized modes well above the boson peak f","authors_text":"Armin Bunde, Jan W. Kantelhardt, Stefanie Russ","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2000-12-20T20:59:22Z","title":"Excess Modes in the Vibrational Spectrum of Disordered Systems and the Boson Peak"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0012392","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":"sha256:56adcec78e85435406407c95f351f5ced31b1b191a9bc9c7eaa1e51abe6070e5","target":"record","created_at":"2026-07-04T16:19:33Z","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":"67adad85af3dc77607f1b0c17c17d2e4d8d5b9ec8004bcc5b6b486185cc6c5a5","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.dis-nn","submitted_at":"2000-12-20T20:59:22Z","title_canon_sha256":"984649681e6e86f616894c6d48ce2238d240ae18802ab66a1946cd04a59f9a19"},"schema_version":"1.0","source":{"id":"cond-mat/0012392","kind":"arxiv","version":1}},"canonical_sha256":"587056ec8ff85f28f44ef6ac5007cadc0c227bc72d6411329c0f6a6b783fb0a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"587056ec8ff85f28f44ef6ac5007cadc0c227bc72d6411329c0f6a6b783fb0a4","first_computed_at":"2026-07-04T16:19:33.425664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:19:33.425664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5fSANDR4j6vU9O0tai9syT5nZRc02ticeVqYD8RT/uLfmJjmIp4c+N7TQT0ZzrDLRdcNHc9zW4InwvcO7AyvBw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:19:33.426052Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0012392","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56adcec78e85435406407c95f351f5ced31b1b191a9bc9c7eaa1e51abe6070e5","sha256:446b01eeeb3e9b3146fef4d1a426ce907c59e716d3881f674f9ed9ed13cca569"],"state_sha256":"2815e1082092d0e03058c6b8f34b4fd6fc9f44c465b10d64a1e88d6d1657733c"}