{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:Q3AWHEAHDNPD7CSMHMFNWQDMKB","short_pith_number":"pith:Q3AWHEAH","canonical_record":{"source":{"id":"2401.03867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-01-08T12:57:22Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"bd325c3af9d2f931531af16e35a0a1dd5cb90ad7b38b7b1488b0054c32c3fcbd","abstract_canon_sha256":"16cf6387c085acb4b44f05239c0996cb1e8ebafbbdb1da6b4f71c7088adbed69"},"schema_version":"1.0"},"canonical_sha256":"86c16390071b5e3f8a4c3b0adb406c5042c5e8689923cc00579c2aaef69c172b","source":{"kind":"arxiv","id":"2401.03867","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.03867","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"arxiv_version","alias_value":"2401.03867v2","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.03867","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_12","alias_value":"Q3AWHEAHDNPD","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q3AWHEAHDNPD7CSM","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q3AWHEAH","created_at":"2026-07-05T08:56:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:Q3AWHEAHDNPD7CSMHMFNWQDMKB","target":"record","payload":{"canonical_record":{"source":{"id":"2401.03867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-01-08T12:57:22Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"bd325c3af9d2f931531af16e35a0a1dd5cb90ad7b38b7b1488b0054c32c3fcbd","abstract_canon_sha256":"16cf6387c085acb4b44f05239c0996cb1e8ebafbbdb1da6b4f71c7088adbed69"},"schema_version":"1.0"},"canonical_sha256":"86c16390071b5e3f8a4c3b0adb406c5042c5e8689923cc00579c2aaef69c172b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:56:46.024105Z","signature_b64":"SYyebHz1kvO1PK1H1puBWdtTMIUW5afaiaOB7BpL7OoU+kEfOemwtDLi4pO5OY1IrziBeSz8pfC3mz271ZagBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"86c16390071b5e3f8a4c3b0adb406c5042c5e8689923cc00579c2aaef69c172b","last_reissued_at":"2026-07-05T08:56:46.023637Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:56:46.023637Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.03867","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":"2026-07-05T08:56:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cgurEAU7c4wA4vmXHVYtymmijgD+gjnjludIslLCBzKV8Cl21Dy2/TO7+dMqFP6tWosFQ+xEznUhNTbo2KR7CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:41:03.476648Z"},"content_sha256":"0e41a4ce37fa8594c4d207b00d0188d811b107e264ac8da0500977219fcbaa59","schema_version":"1.0","event_id":"sha256:0e41a4ce37fa8594c4d207b00d0188d811b107e264ac8da0500977219fcbaa59"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:Q3AWHEAHDNPD7CSMHMFNWQDMKB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantumness of gravitational field: A perspective on monogamy relation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"quant-ph","authors_text":"Akira Matsumura, Kazuhiro Yamamoto, Yuuki Sugiyama","submitted_at":"2024-01-08T12:57:22Z","abstract_excerpt":"Understanding the phenomenon of quantum superposition of gravitational fields induced by massive quantum particles is an important starting point for quantum gravity. The purpose of this study is to deepen our understanding of the phenomenon of quantum superposition of gravitational fields. To this end, we consider a trade-off relation of entanglement (monogamy relation) in a tripartite system consisting of two massive particles and a gravitational field that may be entangled with each other. Consequently, if two particles cannot exchange information mutually, they are in a separable state, an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.03867","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2401.03867/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":"2026-07-05T08:56:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"azYw6hom6/rtUyzKugRAeE7A3nvugLrfx06aRLcKauClexbpAZN9OyRSassThjCd0mmwe+GIMZ5k5Y06Ea/wDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T16:41:03.477160Z"},"content_sha256":"ad5a6d90cac4024c89cb3ff90f1fbfa8cc18dcfc7e6108e6a16c14c0630f5fd4","schema_version":"1.0","event_id":"sha256:ad5a6d90cac4024c89cb3ff90f1fbfa8cc18dcfc7e6108e6a16c14c0630f5fd4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/bundle.json","state_url":"https://pith.science/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/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":"2026-08-12T16:41:03Z","links":{"resolver":"https://pith.science/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB","bundle":"https://pith.science/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/bundle.json","state":"https://pith.science/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q3AWHEAHDNPD7CSMHMFNWQDMKB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:Q3AWHEAHDNPD7CSMHMFNWQDMKB","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":"16cf6387c085acb4b44f05239c0996cb1e8ebafbbdb1da6b4f71c7088adbed69","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-01-08T12:57:22Z","title_canon_sha256":"bd325c3af9d2f931531af16e35a0a1dd5cb90ad7b38b7b1488b0054c32c3fcbd"},"schema_version":"1.0","source":{"id":"2401.03867","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.03867","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"arxiv_version","alias_value":"2401.03867v2","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.03867","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_12","alias_value":"Q3AWHEAHDNPD","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q3AWHEAHDNPD7CSM","created_at":"2026-07-05T08:56:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q3AWHEAH","created_at":"2026-07-05T08:56:46Z"}],"graph_snapshots":[{"event_id":"sha256:ad5a6d90cac4024c89cb3ff90f1fbfa8cc18dcfc7e6108e6a16c14c0630f5fd4","target":"graph","created_at":"2026-07-05T08:56:46Z","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/2401.03867/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding the phenomenon of quantum superposition of gravitational fields induced by massive quantum particles is an important starting point for quantum gravity. The purpose of this study is to deepen our understanding of the phenomenon of quantum superposition of gravitational fields. To this end, we consider a trade-off relation of entanglement (monogamy relation) in a tripartite system consisting of two massive particles and a gravitational field that may be entangled with each other. Consequently, if two particles cannot exchange information mutually, they are in a separable state, an","authors_text":"Akira Matsumura, Kazuhiro Yamamoto, Yuuki Sugiyama","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-01-08T12:57:22Z","title":"Quantumness of gravitational field: A perspective on monogamy relation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.03867","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":"sha256:0e41a4ce37fa8594c4d207b00d0188d811b107e264ac8da0500977219fcbaa59","target":"record","created_at":"2026-07-05T08:56:46Z","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":"16cf6387c085acb4b44f05239c0996cb1e8ebafbbdb1da6b4f71c7088adbed69","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-01-08T12:57:22Z","title_canon_sha256":"bd325c3af9d2f931531af16e35a0a1dd5cb90ad7b38b7b1488b0054c32c3fcbd"},"schema_version":"1.0","source":{"id":"2401.03867","kind":"arxiv","version":2}},"canonical_sha256":"86c16390071b5e3f8a4c3b0adb406c5042c5e8689923cc00579c2aaef69c172b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"86c16390071b5e3f8a4c3b0adb406c5042c5e8689923cc00579c2aaef69c172b","first_computed_at":"2026-07-05T08:56:46.023637Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:56:46.023637Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SYyebHz1kvO1PK1H1puBWdtTMIUW5afaiaOB7BpL7OoU+kEfOemwtDLi4pO5OY1IrziBeSz8pfC3mz271ZagBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:56:46.024105Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.03867","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0e41a4ce37fa8594c4d207b00d0188d811b107e264ac8da0500977219fcbaa59","sha256:ad5a6d90cac4024c89cb3ff90f1fbfa8cc18dcfc7e6108e6a16c14c0630f5fd4"],"state_sha256":"9f1cdadd5a297a5bc9cec3b62816d622c998e339d83fbd1cd1242965cc6f13e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v6NskxSEpU0zvp7IvnTEuiZ9B4IVeXNf7jdSp4Z/8tkChnTztKuQPwfUvU37KUsfLBrt3uR/uOI89s/mC+ygDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T16:41:03.481373Z","bundle_sha256":"a3562b3a24faafe45742668fff256a6858162893b532141e7de48370d0f29f7c"}}