{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:QWOAFPSHAPFNKEDHV3D37SCIOZ","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":"73c970358045118b8b760f2f5d8d337aff46f1085c1d497d7ede6f18dc275188","cross_cats_sorted":["cond-mat.mtrl-sci","physics.atm-clus"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-04-25T13:10:22Z","title_canon_sha256":"0c8ffc9284ef16f7fae30464814e8450cdbd099be5f50f30057a69d6af2f1d80"},"schema_version":"1.0","source":{"id":"1904.11317","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.11317","created_at":"2026-05-17T23:47:45Z"},{"alias_kind":"arxiv_version","alias_value":"1904.11317v1","created_at":"2026-05-17T23:47:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.11317","created_at":"2026-05-17T23:47:45Z"},{"alias_kind":"pith_short_12","alias_value":"QWOAFPSHAPFN","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QWOAFPSHAPFNKEDH","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QWOAFPSH","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:aab17b7cf647e719088765d22973cd6b34e1b15a95943031094711fa5bbcd484","target":"graph","created_at":"2026-05-17T23:47:45Z","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 mass spectra of gas-phase clusters in cluster beams have a rich structure where the relative heights of the peaks compared to peaks corresponding to clusters of neighbor sizes reveal the stability of the clusters as a function of the size $N$. In an analysis of the published mass spectrum of carbon clusters cations $C_N^{+}$ with $N\\leq$16 we have employed the most common descriptor of cluster stability, which is based on comparing the total energy of the cluster of size $N$ with the averaged energies of clusters with sizes $N$+1 and $N$-1. Those energies have been obtained from density fu","authors_text":"Jose I. Martinez, Julio A. Alonso","cross_cats":["cond-mat.mtrl-sci","physics.atm-clus"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-04-25T13:10:22Z","title":"An Improved Descriptor of Cluster Stability. Application to Small Carbon Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.11317","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:e66cdc5f2db395e793c98eb3edc86653faa152edbe7c635ae1422d4c480eb891","target":"record","created_at":"2026-05-17T23:47:45Z","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":"73c970358045118b8b760f2f5d8d337aff46f1085c1d497d7ede6f18dc275188","cross_cats_sorted":["cond-mat.mtrl-sci","physics.atm-clus"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2019-04-25T13:10:22Z","title_canon_sha256":"0c8ffc9284ef16f7fae30464814e8450cdbd099be5f50f30057a69d6af2f1d80"},"schema_version":"1.0","source":{"id":"1904.11317","kind":"arxiv","version":1}},"canonical_sha256":"859c02be4703cad51067aec7bfc848767f569be4d0d5ba078c6d2c16d257d185","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"859c02be4703cad51067aec7bfc848767f569be4d0d5ba078c6d2c16d257d185","first_computed_at":"2026-05-17T23:47:45.216396Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:47:45.216396Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pvggNTzjI4yO/h2LZ2ynXMSbQDGQHvkRFOETYeJoU8V6rOKeJTZ7SN8P28VbUQvKMucVyxUIctDYF3l9mdTCAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:47:45.216838Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.11317","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e66cdc5f2db395e793c98eb3edc86653faa152edbe7c635ae1422d4c480eb891","sha256:aab17b7cf647e719088765d22973cd6b34e1b15a95943031094711fa5bbcd484"],"state_sha256":"ec20e2dbabf075585794e0917a454d725b206971809398ad690ce6502650b10e"}