{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DZ2DJJWPRLERIO6HXCML5QLZFS","short_pith_number":"pith:DZ2DJJWP","canonical_record":{"source":{"id":"1704.08510","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-04-27T11:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"e67c9ca203ae57b6d92f699e2b36bd6347c08416e9a0cc2c5961c1aa48ede5de","abstract_canon_sha256":"00e0e575d947eb9687fed91d3b8b521614db85e684a924c02ab9ebb52856f5bd"},"schema_version":"1.0"},"canonical_sha256":"1e7434a6cf8ac9143bc7b898bec1792c91de603bff9030d68f6b201be67aae5e","source":{"kind":"arxiv","id":"1704.08510","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08510","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08510v1","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08510","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"pith_short_12","alias_value":"DZ2DJJWPRLER","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DZ2DJJWPRLERIO6H","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DZ2DJJWP","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DZ2DJJWPRLERIO6HXCML5QLZFS","target":"record","payload":{"canonical_record":{"source":{"id":"1704.08510","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-04-27T11:23:02Z","cross_cats_sorted":[],"title_canon_sha256":"e67c9ca203ae57b6d92f699e2b36bd6347c08416e9a0cc2c5961c1aa48ede5de","abstract_canon_sha256":"00e0e575d947eb9687fed91d3b8b521614db85e684a924c02ab9ebb52856f5bd"},"schema_version":"1.0"},"canonical_sha256":"1e7434a6cf8ac9143bc7b898bec1792c91de603bff9030d68f6b201be67aae5e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:52.237460Z","signature_b64":"mVFvwB27WGd/PR7Wg6MJeC7DyeGklW+kiZjjMdeyz7bvadN0NQr4VzNvbgQ3RxU81mvy55hHbvOB2zXb5sZ2CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e7434a6cf8ac9143bc7b898bec1792c91de603bff9030d68f6b201be67aae5e","last_reissued_at":"2026-05-18T00:42:52.236743Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:52.236743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.08510","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":"2026-05-18T00:42:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nekxqe+bC2mPbSGx2w92+DtmZo3qxFKhbFlRMhuKrnrFQcMaFQHocYULfylp72Xhhfh2RzZJwgos2sIMRbquCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:15:44.603971Z"},"content_sha256":"49d14edad56dd8f5852c9c8913dcece732f5287dfb3a07382d4fd16ed4e86d91","schema_version":"1.0","event_id":"sha256:49d14edad56dd8f5852c9c8913dcece732f5287dfb3a07382d4fd16ed4e86d91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DZ2DJJWPRLERIO6HXCML5QLZFS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Lee-Yang--inspired functional with a density--dependent neutron-neutron scattering length","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"C.J. Yang, D. Lacroix, M. Grasso","submitted_at":"2017-04-27T11:23:02Z","abstract_excerpt":"Inspired by the low--density Lee-Yang expansion for the energy of a dilute Fermi gas of density $\\rho$ and momentum $k_F$, we introduce here a Skyrme--type functional that contains only $s$-wave terms and provides, at the mean--field level, (i) a satisfactory equation of state for neutron matter from extremely low densities up to densities close to the equilibrium point, and (ii) a good--quality equation of state for symmetric matter at density scales around the saturation point. This is achieved by using a density--dependent neutron-neutron scattering length $a(\\rho$) which satisfies the low-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08510","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":"2026-05-18T00:42:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v4jpUwECUAxE9G14KI4IghkBsQQMy6Wiqy3VI8QmR1BNfbLDZThpYrkMHyZchCKZnQEJYhO5oHavkzAt/jwMCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:15:44.604696Z"},"content_sha256":"b50d072e998ac4fe60cd97cd33585978ac1b2f899d1a4b78840f0a5ff3d83ac2","schema_version":"1.0","event_id":"sha256:b50d072e998ac4fe60cd97cd33585978ac1b2f899d1a4b78840f0a5ff3d83ac2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/bundle.json","state_url":"https://pith.science/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/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":"2026-05-31T04:15:44Z","links":{"resolver":"https://pith.science/pith/DZ2DJJWPRLERIO6HXCML5QLZFS","bundle":"https://pith.science/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/bundle.json","state":"https://pith.science/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DZ2DJJWPRLERIO6HXCML5QLZFS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DZ2DJJWPRLERIO6HXCML5QLZFS","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":"00e0e575d947eb9687fed91d3b8b521614db85e684a924c02ab9ebb52856f5bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-04-27T11:23:02Z","title_canon_sha256":"e67c9ca203ae57b6d92f699e2b36bd6347c08416e9a0cc2c5961c1aa48ede5de"},"schema_version":"1.0","source":{"id":"1704.08510","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.08510","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"arxiv_version","alias_value":"1704.08510v1","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.08510","created_at":"2026-05-18T00:42:52Z"},{"alias_kind":"pith_short_12","alias_value":"DZ2DJJWPRLER","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DZ2DJJWPRLERIO6H","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DZ2DJJWP","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:b50d072e998ac4fe60cd97cd33585978ac1b2f899d1a4b78840f0a5ff3d83ac2","target":"graph","created_at":"2026-05-18T00:42:52Z","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":"Inspired by the low--density Lee-Yang expansion for the energy of a dilute Fermi gas of density $\\rho$ and momentum $k_F$, we introduce here a Skyrme--type functional that contains only $s$-wave terms and provides, at the mean--field level, (i) a satisfactory equation of state for neutron matter from extremely low densities up to densities close to the equilibrium point, and (ii) a good--quality equation of state for symmetric matter at density scales around the saturation point. This is achieved by using a density--dependent neutron-neutron scattering length $a(\\rho$) which satisfies the low-","authors_text":"C.J. Yang, D. Lacroix, M. Grasso","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-04-27T11:23:02Z","title":"A Lee-Yang--inspired functional with a density--dependent neutron-neutron scattering length"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.08510","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":"sha256:49d14edad56dd8f5852c9c8913dcece732f5287dfb3a07382d4fd16ed4e86d91","target":"record","created_at":"2026-05-18T00:42:52Z","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":"00e0e575d947eb9687fed91d3b8b521614db85e684a924c02ab9ebb52856f5bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2017-04-27T11:23:02Z","title_canon_sha256":"e67c9ca203ae57b6d92f699e2b36bd6347c08416e9a0cc2c5961c1aa48ede5de"},"schema_version":"1.0","source":{"id":"1704.08510","kind":"arxiv","version":1}},"canonical_sha256":"1e7434a6cf8ac9143bc7b898bec1792c91de603bff9030d68f6b201be67aae5e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e7434a6cf8ac9143bc7b898bec1792c91de603bff9030d68f6b201be67aae5e","first_computed_at":"2026-05-18T00:42:52.236743Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:52.236743Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mVFvwB27WGd/PR7Wg6MJeC7DyeGklW+kiZjjMdeyz7bvadN0NQr4VzNvbgQ3RxU81mvy55hHbvOB2zXb5sZ2CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:52.237460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.08510","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49d14edad56dd8f5852c9c8913dcece732f5287dfb3a07382d4fd16ed4e86d91","sha256:b50d072e998ac4fe60cd97cd33585978ac1b2f899d1a4b78840f0a5ff3d83ac2"],"state_sha256":"2fd31e8133fecf0a88602056aadade0cbc4e5bd70675dd1a2cc432ae947786cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4DDd0wTi6qK50VpCQ272cC99XZ4OtIrg1DLebuKJ6F4kz+QYYfK9tWYOoB1J/tq0BAOGNQdnLlRhDYu9DMo1Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:15:44.607982Z","bundle_sha256":"92a0f5f423924b5ba1721ad6b1d13d32903f0db7b622c6a6caad9a1a6d8fdedc"}}