{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:TZHZ25HASWZBQA7MVZFTKUEBK6","short_pith_number":"pith:TZHZ25HA","canonical_record":{"source":{"id":"2409.16368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-09-24T18:01:55Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"046ac69f081ee92219d5b0a5527f2b65f9d1164ea3f38058234da1119be1cc4f","abstract_canon_sha256":"76155a0de76be29373b1f999c9248f0fa6f9efdb1728535698a7620a2b865591"},"schema_version":"1.0"},"canonical_sha256":"9e4f9d74e095b21803ecae4b35508157905c52c1ea1c4b2903102b4056538835","source":{"kind":"arxiv","id":"2409.16368","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.16368","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"arxiv_version","alias_value":"2409.16368v1","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.16368","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_12","alias_value":"TZHZ25HASWZB","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_16","alias_value":"TZHZ25HASWZBQA7M","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_8","alias_value":"TZHZ25HA","created_at":"2026-07-05T09:11:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:TZHZ25HASWZBQA7MVZFTKUEBK6","target":"record","payload":{"canonical_record":{"source":{"id":"2409.16368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-09-24T18:01:55Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"046ac69f081ee92219d5b0a5527f2b65f9d1164ea3f38058234da1119be1cc4f","abstract_canon_sha256":"76155a0de76be29373b1f999c9248f0fa6f9efdb1728535698a7620a2b865591"},"schema_version":"1.0"},"canonical_sha256":"9e4f9d74e095b21803ecae4b35508157905c52c1ea1c4b2903102b4056538835","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:11:32.356274Z","signature_b64":"5x13f/cazf0FgZmAPT4jOpSyqXyaCJzBl9W49kQQnc8ZonoTmQAKzI26iveWO+1PqQG5gyFdKFGKJW0PAoD2Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9e4f9d74e095b21803ecae4b35508157905c52c1ea1c4b2903102b4056538835","last_reissued_at":"2026-07-05T09:11:32.355784Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:11:32.355784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.16368","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":"2026-07-05T09:11:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"18WXHB0sNqCZL5T6/PM6jrM1HlN1ibkf/uKX2J4OZTxaJ9uwj54gkz1uaDf2yWXg7imezFqWi4rmOMZlvWRbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:23:02.013693Z"},"content_sha256":"222790b9b4ad861919fde853181aebdd7d60b12a40f0817b86a140c4b3b1fd2f","schema_version":"1.0","event_id":"sha256:222790b9b4ad861919fde853181aebdd7d60b12a40f0817b86a140c4b3b1fd2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:TZHZ25HASWZBQA7MVZFTKUEBK6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The multimode nature of spacetime entanglement in QFT","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"B\\'eatrice Bonga, Bruno de S. L. Torres, Eduardo Mart\\'in-Mart\\'inez, Ivan Agullo, Jos\\'e Polo-G\\'omez, Patricia Ribes-Metidieri, Sergi Nadal-Gisbert, T. Rick Perche","submitted_at":"2024-09-24T18:01:55Z","abstract_excerpt":"We demonstrate the presence of multimode entanglement in the vacuum state of a free, massless scalar quantum field in four-dimensional flat spacetime between two sets of field modes, each contained within a spacetime region that is causally disconnected from the other. This is true despite the fact that entanglement between pairs of individual field modes is sparse and appears only when the two individual modes are carefully selected. Our results reveal that, while entanglement between individual modes is limited, bipartite multimode entanglement in quantum field theory is ubiquitous. We furth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.16368","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/2409.16368/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":"2026-07-05T09:11:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jvOIewL6fUubKxws8aiDBSzlX4trEKdkzhUCdZkm0V7cWGpZ5+s8TDG5zka6dCbkpecpGyY5fNByrKwqHMgrAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T18:23:02.014372Z"},"content_sha256":"0ea3e537594594cce6ba85833e0dd39c852c2b06399ab88810b12ad96fba6bb1","schema_version":"1.0","event_id":"sha256:0ea3e537594594cce6ba85833e0dd39c852c2b06399ab88810b12ad96fba6bb1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/bundle.json","state_url":"https://pith.science/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/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":"2026-08-10T18:23:02Z","links":{"resolver":"https://pith.science/pith/TZHZ25HASWZBQA7MVZFTKUEBK6","bundle":"https://pith.science/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/bundle.json","state":"https://pith.science/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TZHZ25HASWZBQA7MVZFTKUEBK6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:TZHZ25HASWZBQA7MVZFTKUEBK6","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":"76155a0de76be29373b1f999c9248f0fa6f9efdb1728535698a7620a2b865591","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-09-24T18:01:55Z","title_canon_sha256":"046ac69f081ee92219d5b0a5527f2b65f9d1164ea3f38058234da1119be1cc4f"},"schema_version":"1.0","source":{"id":"2409.16368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.16368","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"arxiv_version","alias_value":"2409.16368v1","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.16368","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_12","alias_value":"TZHZ25HASWZB","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_16","alias_value":"TZHZ25HASWZBQA7M","created_at":"2026-07-05T09:11:32Z"},{"alias_kind":"pith_short_8","alias_value":"TZHZ25HA","created_at":"2026-07-05T09:11:32Z"}],"graph_snapshots":[{"event_id":"sha256:0ea3e537594594cce6ba85833e0dd39c852c2b06399ab88810b12ad96fba6bb1","target":"graph","created_at":"2026-07-05T09:11:32Z","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/2409.16368/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We demonstrate the presence of multimode entanglement in the vacuum state of a free, massless scalar quantum field in four-dimensional flat spacetime between two sets of field modes, each contained within a spacetime region that is causally disconnected from the other. This is true despite the fact that entanglement between pairs of individual field modes is sparse and appears only when the two individual modes are carefully selected. Our results reveal that, while entanglement between individual modes is limited, bipartite multimode entanglement in quantum field theory is ubiquitous. We furth","authors_text":"B\\'eatrice Bonga, Bruno de S. L. Torres, Eduardo Mart\\'in-Mart\\'inez, Ivan Agullo, Jos\\'e Polo-G\\'omez, Patricia Ribes-Metidieri, Sergi Nadal-Gisbert, T. Rick Perche","cross_cats":["gr-qc"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-09-24T18:01:55Z","title":"The multimode nature of spacetime entanglement in QFT"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.16368","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":"sha256:222790b9b4ad861919fde853181aebdd7d60b12a40f0817b86a140c4b3b1fd2f","target":"record","created_at":"2026-07-05T09:11:32Z","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":"76155a0de76be29373b1f999c9248f0fa6f9efdb1728535698a7620a2b865591","cross_cats_sorted":["gr-qc"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2024-09-24T18:01:55Z","title_canon_sha256":"046ac69f081ee92219d5b0a5527f2b65f9d1164ea3f38058234da1119be1cc4f"},"schema_version":"1.0","source":{"id":"2409.16368","kind":"arxiv","version":1}},"canonical_sha256":"9e4f9d74e095b21803ecae4b35508157905c52c1ea1c4b2903102b4056538835","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9e4f9d74e095b21803ecae4b35508157905c52c1ea1c4b2903102b4056538835","first_computed_at":"2026-07-05T09:11:32.355784Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:11:32.355784Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5x13f/cazf0FgZmAPT4jOpSyqXyaCJzBl9W49kQQnc8ZonoTmQAKzI26iveWO+1PqQG5gyFdKFGKJW0PAoD2Aw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:11:32.356274Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.16368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:222790b9b4ad861919fde853181aebdd7d60b12a40f0817b86a140c4b3b1fd2f","sha256:0ea3e537594594cce6ba85833e0dd39c852c2b06399ab88810b12ad96fba6bb1"],"state_sha256":"6ad9e700803bb1aac11fd6dd63e96bdd3bc08d2c08971a26281567d5048ad6ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bu9NOmOj+wlLp5z9jjXoWvGAUfpooWpyfUzLGKR75BER17UP78piGePT40bw6rDIjcaCzFYQ6xLhSQ+0tnS9Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T18:23:02.019953Z","bundle_sha256":"60ec979f5d6980035cf97e47a863c7b3c2997c8dfd33666e07b9e9a643865c29"}}