{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NXQWJVIH7GAFT2U42AHVPN3525","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":"bda1559cc5b161fce8f068af21ac2ea48731c5669d98fed41fbce26e4d93e3ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2015-09-05T08:31:44Z","title_canon_sha256":"b736ce883beb978b5f5ea07bec2a35eebbdcec0b626c1e27e2908d1d431f709a"},"schema_version":"1.0","source":{"id":"1509.01677","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.01677","created_at":"2026-05-18T01:33:50Z"},{"alias_kind":"arxiv_version","alias_value":"1509.01677v1","created_at":"2026-05-18T01:33:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.01677","created_at":"2026-05-18T01:33:50Z"},{"alias_kind":"pith_short_12","alias_value":"NXQWJVIH7GAF","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"NXQWJVIH7GAFT2U4","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"NXQWJVIH","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:e20f46dfa3186d3ed4c41beb89518f103898f49b24aaf97acc9237233374c744","target":"graph","created_at":"2026-05-18T01:33:50Z","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":"It is widely accepted that the hippocampal place cells' spiking activity produces a cognitive map of space. However, many details of this representation's physiological mechanism remain unknown. For example, it is believed that the place cells exhibiting frequent coactivity form functionally interconnected groups---place cell assemblies---that drive readout neurons in the downstream networks. However, the sheer number of coactive combinations is extremely large, which implies that only a small fraction of them actually gives rise to cell assemblies. The physiological processes responsible for ","authors_text":"A. Babichev, D. Ji, F. Memoli, Y. Dabaghian","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2015-09-05T08:31:44Z","title":"Combinatorics of Place Cell Coactivity and Hippocampal Maps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.01677","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:fc44bf85504e0862e8583994a28f80332925a42a70a80c44754ea9547a2400aa","target":"record","created_at":"2026-05-18T01:33:50Z","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":"bda1559cc5b161fce8f068af21ac2ea48731c5669d98fed41fbce26e4d93e3ce","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2015-09-05T08:31:44Z","title_canon_sha256":"b736ce883beb978b5f5ea07bec2a35eebbdcec0b626c1e27e2908d1d431f709a"},"schema_version":"1.0","source":{"id":"1509.01677","kind":"arxiv","version":1}},"canonical_sha256":"6de164d507f98059ea9cd00f57b77dd75c827c21c65c04f2aab8b4ad95625884","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6de164d507f98059ea9cd00f57b77dd75c827c21c65c04f2aab8b4ad95625884","first_computed_at":"2026-05-18T01:33:50.858156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:50.858156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WHvuZ0M0EF19RShmD8vnnVhi9+rMiavYZR5zEwjBc5JO5QpkDyrFLYkaH6hxa2gdVt10zDvKapJzRwjFyatqCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:50.858605Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.01677","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc44bf85504e0862e8583994a28f80332925a42a70a80c44754ea9547a2400aa","sha256:e20f46dfa3186d3ed4c41beb89518f103898f49b24aaf97acc9237233374c744"],"state_sha256":"f5045692ebf301e046ba4ee9a99ab1f3e6d19b9f40e727f0fcd5964447abb492"}