{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:WEQFJ5ZHLK6YSPNI6SRUDWVEMM","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":"a2cb0cd8b7443bb1b4cb1a9e3e37eaae96a934658a4c50f2af0cfbb01a0f30f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2016-02-19T19:05:29Z","title_canon_sha256":"d9bf7b3f1998738015427414e697641bf03a66c93620345d3ffc3677390d7702"},"schema_version":"1.0","source":{"id":"1602.06254","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.06254","created_at":"2026-05-18T01:20:18Z"},{"alias_kind":"arxiv_version","alias_value":"1602.06254v1","created_at":"2026-05-18T01:20:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.06254","created_at":"2026-05-18T01:20:18Z"},{"alias_kind":"pith_short_12","alias_value":"WEQFJ5ZHLK6Y","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"WEQFJ5ZHLK6YSPNI","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"WEQFJ5ZH","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:98eba4944f469dddc48276e91dca7d73617ecc7fd06d8ba6bba5f7a43b08d947","target":"graph","created_at":"2026-05-18T01:20:18Z","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":"The paper presents a metaphysical characterization of spatiotemporal backgrounds from a realist perspective. The conceptual analysis is based on a heuristic sketch that encompasses the common formal traits of the major spacetime theories, such as Newtonian mechanics and general relativity. It is shown how this framework can be interpreted in a fully realist fashion, and what is the role of background structures in such a picture. In the end it is argued that, although backgrounds are a source of metaphysical discomfort, still they make a spacetime theory easy to interpret. It is also suggested","authors_text":"Antonio Vassallo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2016-02-19T19:05:29Z","title":"A Metaphysical Reflection on the Notion of Background in Modern Spacetime Physics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.06254","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":"sha256:60093aaeadad32b335e7cfa464e5ce8af675993d6816a1b54ad91faebe168e79","target":"record","created_at":"2026-05-18T01:20:18Z","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":"a2cb0cd8b7443bb1b4cb1a9e3e37eaae96a934658a4c50f2af0cfbb01a0f30f0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.hist-ph","submitted_at":"2016-02-19T19:05:29Z","title_canon_sha256":"d9bf7b3f1998738015427414e697641bf03a66c93620345d3ffc3677390d7702"},"schema_version":"1.0","source":{"id":"1602.06254","kind":"arxiv","version":1}},"canonical_sha256":"b12054f7275abd893da8f4a341daa463397def513d1f10750122d13b85e2ac93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b12054f7275abd893da8f4a341daa463397def513d1f10750122d13b85e2ac93","first_computed_at":"2026-05-18T01:20:18.282683Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:18.282683Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k68ihMVksKl/rKU7CUy0rCjLvROuSKxmEbaX11ZzXoHbbTurTlSMSm759DEAtflc+wH8/3n6rqTu0PjilzN7CA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:18.283217Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.06254","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60093aaeadad32b335e7cfa464e5ce8af675993d6816a1b54ad91faebe168e79","sha256:98eba4944f469dddc48276e91dca7d73617ecc7fd06d8ba6bba5f7a43b08d947"],"state_sha256":"1a405ac32c993fe494cfbefe71a69235e7b8288771a38273d1c9f17a03230bf7"}