{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:E64KGALSXS44JNB4DRVUJ5B5O7","merge_version":"pith-open-graph-merge-v1","event_count":42,"valid_event_count":42,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a8661220597eda9fbac7bf8d27877ffa8d1a7197fe3a6a0b572986a33ee2ece1","cross_cats_sorted":["cond-mat.dis-nn","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2026-05-16T23:55:17Z","title_canon_sha256":"313c4ea909fafd32732106547cd0352657f30ea8b3a654f0ade96f97e56659dc"},"schema_version":"1.0","source":{"id":"2605.17199","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.17199","created_at":"2026-05-20T00:03:44Z"},{"alias_kind":"arxiv_version","alias_value":"2605.17199v1","created_at":"2026-05-20T00:03:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.17199","created_at":"2026-05-20T00:03:44Z"},{"alias_kind":"pith_short_12","alias_value":"E64KGALSXS44","created_at":"2026-05-20T00:03:44Z"},{"alias_kind":"pith_short_16","alias_value":"E64KGALSXS44JNB4","created_at":"2026-05-20T00:03:44Z"},{"alias_kind":"pith_short_8","alias_value":"E64KGALS","created_at":"2026-05-20T00:03:44Z"}],"graph_snapshots":[{"event_id":"sha256:c2d87438ff0c8b2c65b339fcbf58e61ba71261c8337b19b28f7db6f3643a78e2","target":"graph","created_at":"2026-05-20T00:03:44Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-19T22:33:23.734653Z","status":"skipped","version":"1.0.0"},{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-19T22:01:57.946331Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.17199/integrity.json","findings":[],"snapshot_sha256":"04fcd2176b46e040f15fe2acd943b4de9285d387ddb89bae38737aa90a697821","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Memory systems can store vastly different amounts of information despite similar hardware constraints. Here, we show that superior spatial memory emerges from a discrete stiffening of hippocampal population geometry-a transition from disorganized to crystalline collective coding. Comparing food-caching chickadees to non-caching zebra finches, we found that the caching hippocampus maintains a topologically rigid, \"crystalline\" geometry with significantly higher geometric stability (Shesha 0.245 v 0.166) and nearly two-fold greater temporal coherence (Shesha 0.393 v 0.209), while the non-caching","authors_text":"Prashant C. Raju","cross_cats":["cond-mat.dis-nn","physics.bio-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2026-05-16T23:55:17Z","title":"Geometric Phase Transition Enables Extreme Hippocampal Memory Capacity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.17199","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":"sha256:076bf2afa2fe282dce43859cfe3c50b6e39aa39ab68d01f2e18cdd5390872ace","target":"record","created_at":"2026-05-20T00:03:44Z","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":"a8661220597eda9fbac7bf8d27877ffa8d1a7197fe3a6a0b572986a33ee2ece1","cross_cats_sorted":["cond-mat.dis-nn","physics.bio-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2026-05-16T23:55:17Z","title_canon_sha256":"313c4ea909fafd32732106547cd0352657f30ea8b3a654f0ade96f97e56659dc"},"schema_version":"1.0","source":{"id":"2605.17199","kind":"arxiv","version":1}},"canonical_sha256":"27b8a30172bcb9c4b43c1c6b44f43d77ff2bc53d2a6466c756b282d41b6ba126","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"27b8a30172bcb9c4b43c1c6b44f43d77ff2bc53d2a6466c756b282d41b6ba126","first_computed_at":"2026-05-20T00:03:44.717676Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:03:44.717676Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OODb3tJD7jm2AzZr61Ngkxq3tC2IYplsfK9PxlMr1LHoV7zu25OVcXRsqdABDMBP0+ZaL8MWk7Tp5MSyANGhCQ==","signature_status":"signed_v1","signed_at":"2026-05-20T00:03:44.718532Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.17199","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:021ccb08b654f138979fafe3d665b49d3b4251501ca709bdf621091ec340ca3c","sha256:0d4bb2ea2f5dcc267c70002c304d66e5d7d66915bd2b572806edcda3237278a1","sha256:22417bf9a8d34ae494d37f838ee750cd585e9a2c09c4df074a1b10926296dc95","sha256:2a19fa61afe0e5513d28de5f1ea024c4ada0b6daa7972c8dec750d682d5f6187","sha256:301abd9f7c03267bf2c1a92e7d7a4efe46b8357d3393a83d9f6dea9fdc1037fb","sha256:3b5c3c5bc2d98cfd674f53d2389052c964ea7216ec5d7da091015ffad770f767","sha256:3dfbe62107b7345bfd6b23417b901a42ba9f11f0d6cc4dbad3f4d6f9bbd246a5","sha256:410b0af24f00ee6deed8a07109af9d0c2efa0aefe08299c80d62061a9d3ca7dd","sha256:45b432a7eb5b712a1e1f5fe7108aa7c5fd798c05dc93bcb05987ab19ea15c319","sha256:4899f8412439391a83679e4729c4fea6c65321e5da335105b19107651e755129","sha256:495605372d02d7839bc77f3ea748a96d8c940e9aed7c9f5158d6c71dc28afa5f","sha256:56d93078cc7dfd517d96ea12a362892e9e1d842b45a6cb8abf0fb2c40c5d5909","sha256:5ade053d8e23135bbb80c47873de1a174b19dde7e7a13f788d5abe64acfb3eca","sha256:610f6f8b75f0a6e43da6945df5ef46cda9048173e57259318113dc67055494de","sha256:64f6fc0f5cc7e69bd463b439178eb77df88574bf38c9cf451aaf91e4a6f1fef4","sha256:6690452959342a9264e54cb3c5a0562367bfc0f040696add6e23169a395255e1","sha256:77cdce3b667058ddb8c55ece0f69513dea2a1717ac1d896a2996888bbd815cc8","sha256:8f6ce789681c938c8b70c2d24fcb9fd77e8cf870064b0c1371c05aec62bbb6cb","sha256:8ff443da62d37da7e1a8fb3136e262283070b6cb42024adaef73681a9e249015","sha256:937fbf573e41931034f281e5f64028cf625aa8a188be9547a8982c3eefa00ba0","sha256:96d0e3ac06f45a68723b24050fb148551bf110cfec37addbb1260d4b83ef96f0","sha256:a6b113ec539d67609c55102461d06214056e39e807b95e46f9d5fc19b88cae3a","sha256:af42c5abb562cbfa73bce337caf488746e863f9d7993b9bb22c5c2e9bf0d7f10","sha256:b1d596d436905c58ed2003e5976c9342199d478e6b8d87174b3bfdc62678f67c","sha256:bba91eb9cd3a63ec11381070cae97274ac531ba811065f1c16f98d1ea829131f","sha256:bd50227978847dd292e9e038abc295e1807665ba89f994f40054cefba1141076","sha256:c0fcc04fdf5a368a5516371b0d1d4783bda59d5d7d9c9f40797f1a59596ccebc","sha256:c8235336b95693fbd6660af15af56033382d9dad12e30cd4fc8f1c7c44c41f1a","sha256:cce7db517865fe9ec078657d2e1ef6b5af0f253fb43ea4de7b2042229dc4a7b5","sha256:d4f7f41c9360c3db4737bb22fa7336e76301d5ba12aa72ebd2599fb54c422f6c","sha256:d8659a459cca4d26e6ac36b2b3d6f340aa3890a4f3e21307d21c7214ffa43bd5","sha256:e2673d3d39593ff9671242314dc88a1023d4679b0700fcb46b9cd79094831bfa","sha256:e5993b68e47f6a956fde6342257644060b0ca1e9c40a2a19e4dc2730c2b00515","sha256:e5a125866c5ba593f2be35e5f69dd2e0de39340982bb65501a24e43420c1002c","sha256:e9c16c65b90b1f53d2e3dcf867da1261a4e277a15c0153e4570cc9807ce24758","sha256:ec0ba2aa2259b4ab5957283a0975b7d8c8615fbc36972cf34c00e8f7fcbd903b","sha256:f3834f395b3f400078ee19b3eac41e0c2577853047ca8978774a2a77d735c8b7","sha256:f4456d644a2a21e2d98cc591038bb2d7195d6de07cd10c2350d013d537ae2ef1","sha256:f872d7e6223bbf5ea052064b1a90925ae9b748f12d06cba754f0f4bbda9a82f0","sha256:fd706d04ef9f05791c93b06e616ae1d098e25d143b95b53c4bfe87b3670bcb17"]}],"invalid_events":[],"applied_event_ids":["sha256:076bf2afa2fe282dce43859cfe3c50b6e39aa39ab68d01f2e18cdd5390872ace","sha256:c2d87438ff0c8b2c65b339fcbf58e61ba71261c8337b19b28f7db6f3643a78e2"],"state_sha256":"3603351cab97f838bc5bad9bf865c54678f5ad2790f0089f02ea920e4467a9f6"}