{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:KOAGIHI3H4AEGLCE3ZA24RKEGE","short_pith_number":"pith:KOAGIHI3","canonical_record":{"source":{"id":"0907.5531","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2009-07-31T13:14:37Z","cross_cats_sorted":[],"title_canon_sha256":"4bf674c85622a5b3aed796c64e2dd1df71e4210323edb7eb5b68389207373177","abstract_canon_sha256":"dcdc04027ba33982736d45d00754e5542daa9ea5831fc5c79979ebb635693849"},"schema_version":"1.0"},"canonical_sha256":"5380641d1b3f00432c44de41ae45443132276002f8c752608cd06b1b4464194b","source":{"kind":"arxiv","id":"0907.5531","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.5531","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"arxiv_version","alias_value":"0907.5531v1","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.5531","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"pith_short_12","alias_value":"KOAGIHI3H4AE","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KOAGIHI3H4AEGLCE","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KOAGIHI3","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:KOAGIHI3H4AEGLCE3ZA24RKEGE","target":"record","payload":{"canonical_record":{"source":{"id":"0907.5531","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2009-07-31T13:14:37Z","cross_cats_sorted":[],"title_canon_sha256":"4bf674c85622a5b3aed796c64e2dd1df71e4210323edb7eb5b68389207373177","abstract_canon_sha256":"dcdc04027ba33982736d45d00754e5542daa9ea5831fc5c79979ebb635693849"},"schema_version":"1.0"},"canonical_sha256":"5380641d1b3f00432c44de41ae45443132276002f8c752608cd06b1b4464194b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:45.714907Z","signature_b64":"Kdm3S+nx1I6unp0vuk4b/P+QJs5/s6/ORSrar0DPsEUcPql7RYiMIQHE1EvXrsG0r+ZO7RXdeLy43OSqXupbBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5380641d1b3f00432c44de41ae45443132276002f8c752608cd06b1b4464194b","last_reissued_at":"2026-05-18T02:12:45.714129Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:45.714129Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0907.5531","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":"2026-05-18T02:12:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"biCICPvyNgo6i/+mUPUiPOiS5+8bzfrsqr9v6FnG7cMkBrcR/P2NrC5i9O+elxAmk7adfMq5XU0V/xPAU3tnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T15:03:12.486929Z"},"content_sha256":"82470c80e1c80d2f095147838d1f681797f5b2debd728f6ae26392348ba5f650","schema_version":"1.0","event_id":"sha256:82470c80e1c80d2f095147838d1f681797f5b2debd728f6ae26392348ba5f650"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:KOAGIHI3H4AEGLCE3ZA24RKEGE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How informative are spatial CA3 representations established by the dentate gyrus?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.NC","authors_text":"Alessandro Treves, Erika Cerasti","submitted_at":"2009-07-31T13:14:37Z","abstract_excerpt":"In the mammalian hippocampus, the dentate gyrus (DG) is characterized by sparse and powerful unidirectional projections to CA3 pyramidal cells, the so-called mossy fibers. Mossy fiber synapses appear to duplicate, in terms of the information they convey, what CA3 cells already receive from entorhinal cortex layer II cells, which project both to the dentate gyrus and to CA3. Computational models of episodic memory have hypothesized that the function of the mossy fibers is to enforce a new, well separated pattern of activity onto CA3 cells, to represent a new memory, prevailing over the interfer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.5531","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":"2026-05-18T02:12:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W9HwR8GL1lH0mNEsut7X+5RZAM+AUf/hWgSe2A3jO6QDAgZkWdxDIH/eBGUAI/72x2dBeYym+vKX0NXtE8dhDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T15:03:12.487276Z"},"content_sha256":"4d424f088e37c6c0284716b1862cb5ac199dc5a0e89337bb062a112da32c7a86","schema_version":"1.0","event_id":"sha256:4d424f088e37c6c0284716b1862cb5ac199dc5a0e89337bb062a112da32c7a86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/bundle.json","state_url":"https://pith.science/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/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":"2026-06-22T15:03:12Z","links":{"resolver":"https://pith.science/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE","bundle":"https://pith.science/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/bundle.json","state":"https://pith.science/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KOAGIHI3H4AEGLCE3ZA24RKEGE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KOAGIHI3H4AEGLCE3ZA24RKEGE","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":"dcdc04027ba33982736d45d00754e5542daa9ea5831fc5c79979ebb635693849","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2009-07-31T13:14:37Z","title_canon_sha256":"4bf674c85622a5b3aed796c64e2dd1df71e4210323edb7eb5b68389207373177"},"schema_version":"1.0","source":{"id":"0907.5531","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0907.5531","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"arxiv_version","alias_value":"0907.5531v1","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.5531","created_at":"2026-05-18T02:12:45Z"},{"alias_kind":"pith_short_12","alias_value":"KOAGIHI3H4AE","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KOAGIHI3H4AEGLCE","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KOAGIHI3","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:4d424f088e37c6c0284716b1862cb5ac199dc5a0e89337bb062a112da32c7a86","target":"graph","created_at":"2026-05-18T02:12:45Z","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":"In the mammalian hippocampus, the dentate gyrus (DG) is characterized by sparse and powerful unidirectional projections to CA3 pyramidal cells, the so-called mossy fibers. Mossy fiber synapses appear to duplicate, in terms of the information they convey, what CA3 cells already receive from entorhinal cortex layer II cells, which project both to the dentate gyrus and to CA3. Computational models of episodic memory have hypothesized that the function of the mossy fibers is to enforce a new, well separated pattern of activity onto CA3 cells, to represent a new memory, prevailing over the interfer","authors_text":"Alessandro Treves, Erika Cerasti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2009-07-31T13:14:37Z","title":"How informative are spatial CA3 representations established by the dentate gyrus?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.5531","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":"sha256:82470c80e1c80d2f095147838d1f681797f5b2debd728f6ae26392348ba5f650","target":"record","created_at":"2026-05-18T02:12:45Z","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":"dcdc04027ba33982736d45d00754e5542daa9ea5831fc5c79979ebb635693849","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2009-07-31T13:14:37Z","title_canon_sha256":"4bf674c85622a5b3aed796c64e2dd1df71e4210323edb7eb5b68389207373177"},"schema_version":"1.0","source":{"id":"0907.5531","kind":"arxiv","version":1}},"canonical_sha256":"5380641d1b3f00432c44de41ae45443132276002f8c752608cd06b1b4464194b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5380641d1b3f00432c44de41ae45443132276002f8c752608cd06b1b4464194b","first_computed_at":"2026-05-18T02:12:45.714129Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:45.714129Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kdm3S+nx1I6unp0vuk4b/P+QJs5/s6/ORSrar0DPsEUcPql7RYiMIQHE1EvXrsG0r+ZO7RXdeLy43OSqXupbBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:45.714907Z","signed_message":"canonical_sha256_bytes"},"source_id":"0907.5531","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82470c80e1c80d2f095147838d1f681797f5b2debd728f6ae26392348ba5f650","sha256:4d424f088e37c6c0284716b1862cb5ac199dc5a0e89337bb062a112da32c7a86"],"state_sha256":"32a763c2b96aa9fd00c5dd8e00af85d84c39ad1e8023f79f4d13f808fe2bdd80"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HbX7niT/gkglkmTxPwCmmds8Fb7386kmWo6lyLchnoTm4M8Z5v1Ud4tF07lYK8a93FlI22vohLeghc1DBmHlCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T15:03:12.489213Z","bundle_sha256":"1e7ded347bcdf19a8cc60487d29abfc757513209fa33ed4ec303d46674296b37"}}