{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PRPFGMQEUJBWRFKL67CSKWJA42","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":"5681801d55e63556b5a6e1502611e838d7689c5389e592ae26994c6752edb913","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-05-26T19:25:15Z","title_canon_sha256":"00a9b4b38bb8b95a1f19bd938efb9f82a695f59f9714b8c3c07b7ec59d9febfa"},"schema_version":"1.0","source":{"id":"1505.07084","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07084","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07084v3","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07084","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"pith_short_12","alias_value":"PRPFGMQEUJBW","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PRPFGMQEUJBWRFKL","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PRPFGMQE","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:866b954464c9606a629d0890a31bc7514bfeeec774d3405b238c56e5a54f0009","target":"graph","created_at":"2026-05-18T01:22:08Z","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":"I review some recent work on applications of category theory to questions concerning theoretical structure and theoretical equivalence of classical field theories, including Newtonian gravitation, general relativity, and Yang-Mills theories.","authors_text":"James Owen Weatherall","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-05-26T19:25:15Z","title":"Categories and the Foundations of Classical Field Theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07084","kind":"arxiv","version":3},"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":"sha256:035d102954f671dcf13a9f682cedcfd85128870916a8bacd7df8fcb79cb1d03e","target":"record","created_at":"2026-05-18T01:22:08Z","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":"5681801d55e63556b5a6e1502611e838d7689c5389e592ae26994c6752edb913","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2015-05-26T19:25:15Z","title_canon_sha256":"00a9b4b38bb8b95a1f19bd938efb9f82a695f59f9714b8c3c07b7ec59d9febfa"},"schema_version":"1.0","source":{"id":"1505.07084","kind":"arxiv","version":3}},"canonical_sha256":"7c5e533204a24368954bf7c5255920e6bf33fab3b0931d76f031642ea7154729","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c5e533204a24368954bf7c5255920e6bf33fab3b0931d76f031642ea7154729","first_computed_at":"2026-05-18T01:22:08.001687Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:08.001687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dHRAfJAOA2zmEmOcBlZzLcDimSlmkBhUVf69ud3/Hix8FZtG/sO/9dNjwHt4spyGcjzICewdU6FIYK0XN/k4AA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:08.002306Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07084","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:035d102954f671dcf13a9f682cedcfd85128870916a8bacd7df8fcb79cb1d03e","sha256:866b954464c9606a629d0890a31bc7514bfeeec774d3405b238c56e5a54f0009"],"state_sha256":"e0f2f8005c4222a51f79c0344e843b51fe8918974961215a508cbbdaf93a117c"}