{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WWF5KOO5LO64WLSO3BKKTJUKXL","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":"c5d6ead717527dfd39cd290244b44149f3bef39c51d6f88eb0514a0da6cf67ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-06-08T09:43:07Z","title_canon_sha256":"169fa1ea2eca3c2613f4b518fe688f5b9117749a3212ee887349f28724fe1b2a"},"schema_version":"1.0","source":{"id":"1506.02419","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.02419","created_at":"2026-05-18T01:22:21Z"},{"alias_kind":"arxiv_version","alias_value":"1506.02419v2","created_at":"2026-05-18T01:22:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.02419","created_at":"2026-05-18T01:22:21Z"},{"alias_kind":"pith_short_12","alias_value":"WWF5KOO5LO64","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WWF5KOO5LO64WLSO","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WWF5KOO5","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:c76b43340c7bb45976b312c3287d8c9a70567d8e0e0fd9b74111b3132bd04491","target":"graph","created_at":"2026-05-18T01:22:21Z","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 effective-surface approximation is extended taking into account derivatives of the symmetry-energy density per particle with respect to the mean particle density. The isoscalar and isovector particle densities in this extended effective-surface approximation are derived. The improved expressions of the surface symmetry energy, in particular, its surface tension coefficients in the sharp-edged proton-neutron asymmetric nuclei take into account important gradient terms of the energy density functional. For most Skyrme forces the surface symmetry-energy constants and the corresponding neutron","authors_text":"A.G. Magner, J.P. Blocki, P. Ring","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-06-08T09:43:07Z","title":"Slope-dependent nuclear-symmetry energy within the effective surface approximation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.02419","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:dd5f1ae9c9cb505169c0594e9d96f706897c09c341664fcd14af3980fc60bd67","target":"record","created_at":"2026-05-18T01:22:21Z","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":"c5d6ead717527dfd39cd290244b44149f3bef39c51d6f88eb0514a0da6cf67ec","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-06-08T09:43:07Z","title_canon_sha256":"169fa1ea2eca3c2613f4b518fe688f5b9117749a3212ee887349f28724fe1b2a"},"schema_version":"1.0","source":{"id":"1506.02419","kind":"arxiv","version":2}},"canonical_sha256":"b58bd539dd5bbdcb2e4ed854a9a68abae64b334248cb373436b80ffb52e9d82c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b58bd539dd5bbdcb2e4ed854a9a68abae64b334248cb373436b80ffb52e9d82c","first_computed_at":"2026-05-18T01:22:21.024329Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:21.024329Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uX2JpvOw8KxK/eXsg1j1Y4hGmdxy3NeXKFJkkhA8i5rdA0g1NGF76t9veNoXQEynBBqCupwrWq0msd9jq2XODg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:21.025120Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.02419","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd5f1ae9c9cb505169c0594e9d96f706897c09c341664fcd14af3980fc60bd67","sha256:c76b43340c7bb45976b312c3287d8c9a70567d8e0e0fd9b74111b3132bd04491"],"state_sha256":"f15aaae1d5a0e26042c72956ac65a47cf53858da621b789fb7c6cdb922e3d5c4"}