{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:EFEFE2X5TKINE7IT2TGHB6LG25","short_pith_number":"pith:EFEFE2X5","canonical_record":{"source":{"id":"1402.1087","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-05T16:55:58Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d1bda3edfd36413740d885c3dca80bc8893df22d2a1eddab369bc26685df9438","abstract_canon_sha256":"4d4bf42b29bc5492efc15ca87b5dca56695d69b47c50a251bb4c4de312053030"},"schema_version":"1.0"},"canonical_sha256":"2148526afd9a90d27d13d4cc70f966d76402c1d5ef2b745916984e8e2682e63a","source":{"kind":"arxiv","id":"1402.1087","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1087","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1087v2","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1087","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"pith_short_12","alias_value":"EFEFE2X5TKIN","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"EFEFE2X5TKINE7IT","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"EFEFE2X5","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:EFEFE2X5TKINE7IT2TGHB6LG25","target":"record","payload":{"canonical_record":{"source":{"id":"1402.1087","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-05T16:55:58Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"d1bda3edfd36413740d885c3dca80bc8893df22d2a1eddab369bc26685df9438","abstract_canon_sha256":"4d4bf42b29bc5492efc15ca87b5dca56695d69b47c50a251bb4c4de312053030"},"schema_version":"1.0"},"canonical_sha256":"2148526afd9a90d27d13d4cc70f966d76402c1d5ef2b745916984e8e2682e63a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:30.796795Z","signature_b64":"KF+eE8qHepdKA6L29KFUdGeZtXeNlxTdlBh72RQhW4W58FTGWEayYWQK/wylQMr9jdM2r9lhdmIMFYqczlNgBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2148526afd9a90d27d13d4cc70f966d76402c1d5ef2b745916984e8e2682e63a","last_reissued_at":"2026-05-18T01:24:30.795995Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:30.795995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1402.1087","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:24:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DJLqT7dTzDuC5Bbum8wLv8fT2Ub4Lp6eqU64ww5mUOtHCnPmXMQMFwa52poRK57R8gQmwqpi10uLMe7hrkjmDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:46:20.669170Z"},"content_sha256":"9e713f5640d04776d0fe22cf64bbb56099fd33e5809092f89883597f453fc1ac","schema_version":"1.0","event_id":"sha256:9e713f5640d04776d0fe22cf64bbb56099fd33e5809092f89883597f453fc1ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:EFEFE2X5TKINE7IT2TGHB6LG25","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The quantum vacuum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"G. S. Paraoanu","submitted_at":"2014-02-05T16:55:58Z","abstract_excerpt":"The vacuum is the lowest energy state of a field in a certain region of space. This definition implies that no particles can be present in the vacuum state. In classical physics, the only features of vacuum are those of its geometry. For example, in the general theory of relativity the geometry is a dynamical structure that guides the motion of matter, and, in turn, it is bent and curved by the presence of matter. Other than this, the classical vacuum is a structure void of any physical properties, since classically properties are strictly associated with physical objects such as particles and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1087","kind":"arxiv","version":2},"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":"2026-05-18T01:24:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7+wJI6360CFdVVshIhZIbm7AbcHesOsU7HbUl611PB/V5mccfsFRiLmaKfz17ObDd0+KsxjKCCkKv1i1MpPXDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:46:20.669857Z"},"content_sha256":"7780b2b01bafa1dcc44ba152d6fccf15f0916081ec497751a768b4c6ef95ba70","schema_version":"1.0","event_id":"sha256:7780b2b01bafa1dcc44ba152d6fccf15f0916081ec497751a768b4c6ef95ba70"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EFEFE2X5TKINE7IT2TGHB6LG25/bundle.json","state_url":"https://pith.science/pith/EFEFE2X5TKINE7IT2TGHB6LG25/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EFEFE2X5TKINE7IT2TGHB6LG25/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":"2026-05-25T09:46:20Z","links":{"resolver":"https://pith.science/pith/EFEFE2X5TKINE7IT2TGHB6LG25","bundle":"https://pith.science/pith/EFEFE2X5TKINE7IT2TGHB6LG25/bundle.json","state":"https://pith.science/pith/EFEFE2X5TKINE7IT2TGHB6LG25/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EFEFE2X5TKINE7IT2TGHB6LG25/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:EFEFE2X5TKINE7IT2TGHB6LG25","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":"4d4bf42b29bc5492efc15ca87b5dca56695d69b47c50a251bb4c4de312053030","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-05T16:55:58Z","title_canon_sha256":"d1bda3edfd36413740d885c3dca80bc8893df22d2a1eddab369bc26685df9438"},"schema_version":"1.0","source":{"id":"1402.1087","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1087","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1087v2","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1087","created_at":"2026-05-18T01:24:30Z"},{"alias_kind":"pith_short_12","alias_value":"EFEFE2X5TKIN","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"EFEFE2X5TKINE7IT","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"EFEFE2X5","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:7780b2b01bafa1dcc44ba152d6fccf15f0916081ec497751a768b4c6ef95ba70","target":"graph","created_at":"2026-05-18T01:24:30Z","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 vacuum is the lowest energy state of a field in a certain region of space. This definition implies that no particles can be present in the vacuum state. In classical physics, the only features of vacuum are those of its geometry. For example, in the general theory of relativity the geometry is a dynamical structure that guides the motion of matter, and, in turn, it is bent and curved by the presence of matter. Other than this, the classical vacuum is a structure void of any physical properties, since classically properties are strictly associated with physical objects such as particles and","authors_text":"G. S. Paraoanu","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-05T16:55:58Z","title":"The quantum vacuum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1087","kind":"arxiv","version":2},"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":"sha256:9e713f5640d04776d0fe22cf64bbb56099fd33e5809092f89883597f453fc1ac","target":"record","created_at":"2026-05-18T01:24:30Z","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":"4d4bf42b29bc5492efc15ca87b5dca56695d69b47c50a251bb4c4de312053030","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-02-05T16:55:58Z","title_canon_sha256":"d1bda3edfd36413740d885c3dca80bc8893df22d2a1eddab369bc26685df9438"},"schema_version":"1.0","source":{"id":"1402.1087","kind":"arxiv","version":2}},"canonical_sha256":"2148526afd9a90d27d13d4cc70f966d76402c1d5ef2b745916984e8e2682e63a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2148526afd9a90d27d13d4cc70f966d76402c1d5ef2b745916984e8e2682e63a","first_computed_at":"2026-05-18T01:24:30.795995Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:30.795995Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KF+eE8qHepdKA6L29KFUdGeZtXeNlxTdlBh72RQhW4W58FTGWEayYWQK/wylQMr9jdM2r9lhdmIMFYqczlNgBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:30.796795Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.1087","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e713f5640d04776d0fe22cf64bbb56099fd33e5809092f89883597f453fc1ac","sha256:7780b2b01bafa1dcc44ba152d6fccf15f0916081ec497751a768b4c6ef95ba70"],"state_sha256":"d0e2dff8fa2ea57f9f57fe1fe05d3fa8d5fabaff323005095796d1ce8f6a88d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y8aIUqGAM67OJL8ZQVWPe+SxqMXUM71UlfPSHKCe2EwXwTbtpqKcc682Y3klfxaebKvMtHBFPNuhQ9PHPKfrCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T09:46:20.673110Z","bundle_sha256":"86b8ef56c63829008dffeabdec85d855aa945e37d11da809e70418ea7b9a77d2"}}