{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:2ZY7Y7GHXXYMXKXJLJWTJNWF53","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":"3d92724794f2dfa950e1f185f7588b7f53af3e5a15570cc6ad4bff8928baeb24","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2025-05-31T04:48:53Z","title_canon_sha256":"ab558fb656a8e315e4bd1308caee8c15782083323efeed5f39f6baefae7f1690"},"schema_version":"1.0","source":{"id":"2506.06332","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.06332","created_at":"2026-07-05T11:17:48Z"},{"alias_kind":"arxiv_version","alias_value":"2506.06332v1","created_at":"2026-07-05T11:17:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.06332","created_at":"2026-07-05T11:17:48Z"},{"alias_kind":"pith_short_12","alias_value":"2ZY7Y7GHXXYM","created_at":"2026-07-05T11:17:48Z"},{"alias_kind":"pith_short_16","alias_value":"2ZY7Y7GHXXYMXKXJ","created_at":"2026-07-05T11:17:48Z"},{"alias_kind":"pith_short_8","alias_value":"2ZY7Y7GH","created_at":"2026-07-05T11:17:48Z"}],"graph_snapshots":[{"event_id":"sha256:52b8d76de7dfe1a1d0624fb266c40c76fea528abb5430db40e3be59192a3cde5","target":"graph","created_at":"2026-07-05T11:17:48Z","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/2506.06332/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Predictive coding networks (PCNs) constitute a biologically inspired framework for understanding hierarchical computation in the brain, and offer an alternative to traditional feedforward neural networks in ML. This note serves as a quick, onboarding introduction to PCNs for machine learning practitioners. We cover the foundational network architecture, inference and learning update rules, and algorithmic implementation. A concrete image-classification task (CIFAR-10) is provided as a benchmark-smashing application, together with an accompanying Python notebook containing the PyTorch implement","authors_text":"Mikko Stenlund","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2025-05-31T04:48:53Z","title":"Introduction to Predictive Coding Networks for Machine Learning"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.06332","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":"sha256:475903c3c2d8c619ac9fb49721b5e52f39abf31db9b812c65fbb020ffec21709","target":"record","created_at":"2026-07-05T11:17:48Z","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":"3d92724794f2dfa950e1f185f7588b7f53af3e5a15570cc6ad4bff8928baeb24","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NE","submitted_at":"2025-05-31T04:48:53Z","title_canon_sha256":"ab558fb656a8e315e4bd1308caee8c15782083323efeed5f39f6baefae7f1690"},"schema_version":"1.0","source":{"id":"2506.06332","kind":"arxiv","version":1}},"canonical_sha256":"d671fc7cc7bdf0cbaae95a6d34b6c5eed252a54519275b4134c89968b57d340a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d671fc7cc7bdf0cbaae95a6d34b6c5eed252a54519275b4134c89968b57d340a","first_computed_at":"2026-07-05T11:17:48.218071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:48.218071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E+kH0uGwBVV/PDaoOaerZgiidGQShgfqDN/C6mcdKeuN10TV4TXV856Zh2urJEtzf7cnpp6yde0TCOmtaBq8Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:48.218543Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.06332","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:475903c3c2d8c619ac9fb49721b5e52f39abf31db9b812c65fbb020ffec21709","sha256:52b8d76de7dfe1a1d0624fb266c40c76fea528abb5430db40e3be59192a3cde5"],"state_sha256":"aa448835a098cbc8c7d3afc02732ecbf3231689d75af050278bd33cfdf552f47"}