{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:WJBD2BJMQ2UH5S3YHIO2NYEWI7","short_pith_number":"pith:WJBD2BJM","schema_version":"1.0","canonical_sha256":"b2423d052c86a87ecb783a1da6e09647c55713befcc2268aeb87b2505df9acfa","source":{"kind":"arxiv","id":"1101.3648","version":1},"attestation_state":"computed","paper":{"title":"Constraints on the density dependence of the symmetry energy from heavy ion collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"D. Coupland, F. Famiano, F. Lu, J. Winkelbauer, M.B. Tsang, M.Kilburn, M. Youngs, P. Danielewicz, R. Hodges, W.G. Lynch, Yingxun Zhang, Z. Chajecki","submitted_at":"2011-01-19T09:20:43Z","abstract_excerpt":"Constraints on the Equation of State for symmetric matter (equal neutron and proton numbers) have been extracted from energetic collisions of heavy ions over a range of energies. Collisions of neutron-deficient and neutron-rich heavy ions now provide initial constraints on the EoS of neutron-rich matter at sub-saturation densities from isospin diffusions and neutron proton ratios. This article reviews the experimental constraints on the density dependence of Symmetry Energy at sub-saturation density."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1101.3648","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-01-19T09:20:43Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"9a68013fcddf4efd1ed2dfb4153375eb07b62c33e4202de27d05b53a2d0a8e19","abstract_canon_sha256":"63d0677cadfde886861a69fd441be5f65f7224848888e1368dcf093b5b3d1b6a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:51.432111Z","signature_b64":"SwJvEIY+EvauL6GEH6Sb6nIM3isnDxkMMH+SOyW1/y2rEkqhlG+NYAq3/YA4MYBHnCwSAscNAYrHjnReoWLZCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2423d052c86a87ecb783a1da6e09647c55713befcc2268aeb87b2505df9acfa","last_reissued_at":"2026-05-18T02:22:51.431624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:51.431624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraints on the density dependence of the symmetry energy from heavy ion collisions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"D. Coupland, F. Famiano, F. Lu, J. Winkelbauer, M.B. Tsang, M.Kilburn, M. Youngs, P. Danielewicz, R. Hodges, W.G. Lynch, Yingxun Zhang, Z. Chajecki","submitted_at":"2011-01-19T09:20:43Z","abstract_excerpt":"Constraints on the Equation of State for symmetric matter (equal neutron and proton numbers) have been extracted from energetic collisions of heavy ions over a range of energies. Collisions of neutron-deficient and neutron-rich heavy ions now provide initial constraints on the EoS of neutron-rich matter at sub-saturation densities from isospin diffusions and neutron proton ratios. This article reviews the experimental constraints on the density dependence of Symmetry Energy at sub-saturation density."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.3648","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1101.3648","created_at":"2026-05-18T02:22:51.431704+00:00"},{"alias_kind":"arxiv_version","alias_value":"1101.3648v1","created_at":"2026-05-18T02:22:51.431704+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1101.3648","created_at":"2026-05-18T02:22:51.431704+00:00"},{"alias_kind":"pith_short_12","alias_value":"WJBD2BJMQ2UH","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"WJBD2BJMQ2UH5S3Y","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"WJBD2BJM","created_at":"2026-05-18T12:26:44.992195+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7","json":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7.json","graph_json":"https://pith.science/api/pith-number/WJBD2BJMQ2UH5S3YHIO2NYEWI7/graph.json","events_json":"https://pith.science/api/pith-number/WJBD2BJMQ2UH5S3YHIO2NYEWI7/events.json","paper":"https://pith.science/paper/WJBD2BJM"},"agent_actions":{"view_html":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7","download_json":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7.json","view_paper":"https://pith.science/paper/WJBD2BJM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1101.3648&json=true","fetch_graph":"https://pith.science/api/pith-number/WJBD2BJMQ2UH5S3YHIO2NYEWI7/graph.json","fetch_events":"https://pith.science/api/pith-number/WJBD2BJMQ2UH5S3YHIO2NYEWI7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7/action/storage_attestation","attest_author":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7/action/author_attestation","sign_citation":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7/action/citation_signature","submit_replication":"https://pith.science/pith/WJBD2BJMQ2UH5S3YHIO2NYEWI7/action/replication_record"}},"created_at":"2026-05-18T02:22:51.431704+00:00","updated_at":"2026-05-18T02:22:51.431704+00:00"}