{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","short_pith_number":"pith:ROKGMIR6","canonical_record":{"source":{"id":"2607.16027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-17T14:59:33Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"190e285a7591d284bcd484b70355b3fb402cdfb01e976c4c499c64fa90daf883","abstract_canon_sha256":"25ceef46a228a251723681bd6c7540c9cbfc9894b72879c05540a86660d794e1"},"schema_version":"1.0"},"canonical_sha256":"8b9466223eb2bf229397b15e36107b902d103bc75669aa5cbd277744efdaa6d5","source":{"kind":"arxiv","id":"2607.16027","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.16027","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"2607.16027v1","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.16027","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"ROKGMIR6WK7S","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_16","alias_value":"ROKGMIR6WK7SFE4X","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_8","alias_value":"ROKGMIR6","created_at":"2026-07-20T02:19:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","target":"record","payload":{"canonical_record":{"source":{"id":"2607.16027","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-17T14:59:33Z","cross_cats_sorted":["cs.NE"],"title_canon_sha256":"190e285a7591d284bcd484b70355b3fb402cdfb01e976c4c499c64fa90daf883","abstract_canon_sha256":"25ceef46a228a251723681bd6c7540c9cbfc9894b72879c05540a86660d794e1"},"schema_version":"1.0"},"canonical_sha256":"8b9466223eb2bf229397b15e36107b902d103bc75669aa5cbd277744efdaa6d5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-20T02:19:27.153488Z","signature_b64":"cxDsOakZxtjXKOXn4WZzK/9wRy2zR2ooW2dNAUhVuDRJQuZrOYMUBhufA+baUuHGgsZH/lz247hVKWzta4LsDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b9466223eb2bf229397b15e36107b902d103bc75669aa5cbd277744efdaa6d5","last_reissued_at":"2026-07-20T02:19:27.152481Z","signature_status":"signed_v1","first_computed_at":"2026-07-20T02:19:27.152481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.16027","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":"2026-07-20T02:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lrnv3Q6BWZe3JiuGI62FkdzdDWPI/P4y3audr1kLGc8+BjJG7d66wzgINx9KqMEWPCnHWvvGyEre4/eGF1YVDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:00.137233Z"},"content_sha256":"630da43384596507c684d80abbb23695b02f3f23e696e7e05a0946f79f8d058b","schema_version":"1.0","event_id":"sha256:630da43384596507c684d80abbb23695b02f3f23e696e7e05a0946f79f8d058b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constrained Hebbian Learning Supports Efficient Representational Allocation under Structural Constraints","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.NE"],"primary_cat":"cs.LG","authors_text":"Andreas Knoblauch, Florian R\\\"ohrbein, Patrick Inoue","submitted_at":"2026-07-17T14:59:33Z","abstract_excerpt":"Introduction: Biological systems face anatomical and metabolic constraints, including costly synaptic maintenance and limited connectivity. These constraints favor neural codes that compress behaviorally relevant information into low-redundancy patterns. We test whether an excitatory competitive Hebbian rule can support synaptic resource allocation under such constraints and whether the resulting representations occupy a more favorable cost-performance regime than reference learning rules.\n  Methods: Representational cost is quantified using mutual-information-based measures derived from the V"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.16027","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.16027/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-20T02:19:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fb0rsx6SiCfJwQHf4bbGL67zwsgg2SMj6n/uGsBs0lkmWbacOuPztIi3+zLHcipqugHdM8wVL9iGynKmlcUqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:00.138123Z"},"content_sha256":"9d21625cf183b33683de6f47dae32ea53a0a6e1520215eb0c1796e7095ba099f","schema_version":"1.0","event_id":"sha256:9d21625cf183b33683de6f47dae32ea53a0a6e1520215eb0c1796e7095ba099f"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","target":"integrity","payload":{"note":"DOI is split by whitespace or line breaks in the printed bibliography. Reconstructed DOI 10.1016/B978-0-12-803784-3.00017-2 resolves to 'Impact of Structural Plasticity on Memory Formation and Decline'. A reader following the printed text alone cannot reach it.","snippet":"A. Knoblauch, “Impact of Structural Plasticity on Memory Formation and Decline,” inRewiring the Brain: A Computational Approach to Structural Plasticity in the Adult Brain, A. van Ooyen and M. Butz, Eds. Elsevier/Academic Press, 2017, pp. 3","arxiv_id":"2607.16027","detector":"doi_compliance","evidence":{"ref_index":17,"verdict_class":"incontrovertible","resolved_title":"Impact of Structural Plasticity on Memory Formation and Decline","printed_excerpt":"10.1016/b978-","reconstructed_doi":"10.1016/B978-0-12-803784-3.00017-2"},"severity":"advisory","ref_index":17,"audited_at":"2026-08-01T21:48:54.064188Z","event_type":"pith.integrity.v1","detected_doi":"10.1016/B978-0-12-803784-3.00017-2","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"c10b4db0e1da8fb6bde9cdebfb04d8190fc29e9080cf46c5ccff7516689a102a","paper_version":1,"verdict_class":"incontrovertible","resolved_title":"Impact of Structural Plasticity on Memory Formation and Decline","detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":16711,"payload_sha256":"70c352a4aada501bf358bf94951d15a8f76c0c885afec850d7315f1193d8821a","signature_b64":"21u5dWT4LWqk35RcZ50tEL1cRHTr/BouRUQ8iyX56syy/9Je6MGA48oRu57NtapdKGRTuCUeCiHTDD7BkpnWCA==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-01T21:53:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XwOAdd1gt1krM2DcWu1lSSJtzQ++PygZOBZabnHM7G9wQdJVnYjmGdRRD9fTRvJ/V0t00Jh5XdvOlwIHJJu4CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:00.142653Z"},"content_sha256":"2e2cd10f0248257710dd26a1180a0b72309d9ac832517b4658f8d0f69c1163de","schema_version":"1.0","event_id":"sha256:2e2cd10f0248257710dd26a1180a0b72309d9ac832517b4658f8d0f69c1163de"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","target":"integrity","payload":{"note":"Identifier '10.1016/s0042-6989(00)00263-2' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.","snippet":"W. S. Geisler, J. S. Perry, B. J. Super, and D. P. Gallogly, “Edge Co-Occurrence in Natural Images Predicts Contour Group- ing Performance,”Vis. Res., vol. 41, no. 6, pp. 711–724, 2001, doi: 10.1016/S0042-6989(00)00263-2. 34","arxiv_id":"2607.16027","detector":"doi_compliance","evidence":{"doi":"10.1016/s0042-6989(00)00263-2","arxiv_id":null,"ref_index":8,"raw_excerpt":"W. S. Geisler, J. S. Perry, B. J. Super, and D. P. Gallogly, “Edge Co-Occurrence in Natural Images Predicts Contour Group- ing Performance,”Vis. Res., vol. 41, no. 6, pp. 711–724, 2001, doi: 10.1016/S0042-6989(00)00263-2. 34","parse_status":"well_formed","verdict_class":"cross_source","checked_sources":["crossref_by_doi","openalex_by_doi","doi_org_head"],"resolution_status":"hard_miss"},"severity":"critical","ref_index":8,"audited_at":"2026-08-01T21:48:54.064188Z","event_type":"pith.integrity.v1","detected_doi":"10.1016/s0042-6989(00)00263-2","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"unresolvable_identifier","evidence_hash":"f9bf433876ee5e8a0c5040909b6d7b5599355c01bc9819965eaa27ec20b2060d","paper_version":1,"verdict_class":"cross_source","resolved_title":null,"detector_version":"1.1.0","detected_arxiv_id":null,"integrity_event_id":16710,"payload_sha256":"6025cbfb85f5614fe332ae925624938982d3a6de34b3abfc8996f3e89623bbf0","signature_b64":"e/Q3TS9dnpNoHNMb/GsTMbnWyQwbjwALA0uigUo1F5+Okqot1jDDwT1GtticcjU8gTjzVd5+VNyfciMCSfSIBw==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-08-01T21:53:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F4M1zXKiJKUWR9OElNBTOQOwAGepYi3MlmVAzmZdV+ygVV6W28msw8gUKPQvHPkFFktRB5OCrqqP5XU2iyw/DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T23:04:00.143387Z"},"content_sha256":"6aa3d986105736792d3804527737a89900be014c55cd75e386c26506926ef544","schema_version":"1.0","event_id":"sha256:6aa3d986105736792d3804527737a89900be014c55cd75e386c26506926ef544"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/bundle.json","state_url":"https://pith.science/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/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":"2026-08-04T23:04:00Z","links":{"resolver":"https://pith.science/pith/ROKGMIR6WK7SFE4XWFPDMED3SA","bundle":"https://pith.science/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/bundle.json","state":"https://pith.science/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ROKGMIR6WK7SFE4XWFPDMED3SA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:ROKGMIR6WK7SFE4XWFPDMED3SA","merge_version":"pith-open-graph-merge-v1","event_count":4,"valid_event_count":4,"invalid_event_count":0,"equivocation_count":1,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"25ceef46a228a251723681bd6c7540c9cbfc9894b72879c05540a86660d794e1","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-17T14:59:33Z","title_canon_sha256":"190e285a7591d284bcd484b70355b3fb402cdfb01e976c4c499c64fa90daf883"},"schema_version":"1.0","source":{"id":"2607.16027","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.16027","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"arxiv_version","alias_value":"2607.16027v1","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.16027","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_12","alias_value":"ROKGMIR6WK7S","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_16","alias_value":"ROKGMIR6WK7SFE4X","created_at":"2026-07-20T02:19:27Z"},{"alias_kind":"pith_short_8","alias_value":"ROKGMIR6","created_at":"2026-07-20T02:19:27Z"}],"graph_snapshots":[{"event_id":"sha256:9d21625cf183b33683de6f47dae32ea53a0a6e1520215eb0c1796e7095ba099f","target":"graph","created_at":"2026-07-20T02:19:27Z","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":[],"endpoint":"/pith/2607.16027/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Introduction: Biological systems face anatomical and metabolic constraints, including costly synaptic maintenance and limited connectivity. These constraints favor neural codes that compress behaviorally relevant information into low-redundancy patterns. We test whether an excitatory competitive Hebbian rule can support synaptic resource allocation under such constraints and whether the resulting representations occupy a more favorable cost-performance regime than reference learning rules.\n  Methods: Representational cost is quantified using mutual-information-based measures derived from the V","authors_text":"Andreas Knoblauch, Florian R\\\"ohrbein, Patrick Inoue","cross_cats":["cs.NE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-17T14:59:33Z","title":"Constrained Hebbian Learning Supports Efficient Representational Allocation under Structural Constraints"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.16027","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":"sha256:630da43384596507c684d80abbb23695b02f3f23e696e7e05a0946f79f8d058b","target":"record","created_at":"2026-07-20T02:19:27Z","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":"25ceef46a228a251723681bd6c7540c9cbfc9894b72879c05540a86660d794e1","cross_cats_sorted":["cs.NE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-07-17T14:59:33Z","title_canon_sha256":"190e285a7591d284bcd484b70355b3fb402cdfb01e976c4c499c64fa90daf883"},"schema_version":"1.0","source":{"id":"2607.16027","kind":"arxiv","version":1}},"canonical_sha256":"8b9466223eb2bf229397b15e36107b902d103bc75669aa5cbd277744efdaa6d5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b9466223eb2bf229397b15e36107b902d103bc75669aa5cbd277744efdaa6d5","first_computed_at":"2026-07-20T02:19:27.152481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-20T02:19:27.152481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cxDsOakZxtjXKOXn4WZzK/9wRy2zR2ooW2dNAUhVuDRJQuZrOYMUBhufA+baUuHGgsZH/lz247hVKWzta4LsDA==","signature_status":"signed_v1","signed_at":"2026-07-20T02:19:27.153488Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.16027","source_kind":"arxiv","source_version":1}}},"equivocations":[{"signer_id":"pith.science","event_type":"integrity_finding","target":"integrity","event_ids":["sha256:2e2cd10f0248257710dd26a1180a0b72309d9ac832517b4658f8d0f69c1163de","sha256:6aa3d986105736792d3804527737a89900be014c55cd75e386c26506926ef544"]}],"invalid_events":[],"applied_event_ids":["sha256:630da43384596507c684d80abbb23695b02f3f23e696e7e05a0946f79f8d058b","sha256:9d21625cf183b33683de6f47dae32ea53a0a6e1520215eb0c1796e7095ba099f"],"state_sha256":"a753454949171a86daf907cbdd16e9b3e96c2179cf32a9964e21fdedd4fcedc9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T/nz+iKPdBTNUMQLx7AOdbneGUw8rJkt7sVU6prcRdK+QwJJuSp2e3CRtGiZYM9alUlgeDO/iDfQt6S5VL4aBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T23:04:00.147978Z","bundle_sha256":"ca29006a7905a4dea8427526071b71b7ca4a0ac64dc4705fb04864f1faecb221"}}