{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:YCYJJBDVOKZHRVU7K5BQ24XKNJ","short_pith_number":"pith:YCYJJBDV","canonical_record":{"source":{"id":"2606.03671","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-02T13:55:33Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"702c4dfa7806ef7ebf911959110049c366abb86adf5a314f55bcdf40be2afac8","abstract_canon_sha256":"9e066e6259103473315d8d3eb6c7d09d0f113c0fcf6011f3b14d27ff43ae52e2"},"schema_version":"1.0"},"canonical_sha256":"c0b094847572b278d69f57430d72ea6a556c382a39e3029b104ec85532ad4dc4","source":{"kind":"arxiv","id":"2606.03671","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03671","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03671v1","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03671","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_12","alias_value":"YCYJJBDVOKZH","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_16","alias_value":"YCYJJBDVOKZHRVU7","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_8","alias_value":"YCYJJBDV","created_at":"2026-06-03T01:06:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:YCYJJBDVOKZHRVU7K5BQ24XKNJ","target":"record","payload":{"canonical_record":{"source":{"id":"2606.03671","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-02T13:55:33Z","cross_cats_sorted":["hep-th","quant-ph"],"title_canon_sha256":"702c4dfa7806ef7ebf911959110049c366abb86adf5a314f55bcdf40be2afac8","abstract_canon_sha256":"9e066e6259103473315d8d3eb6c7d09d0f113c0fcf6011f3b14d27ff43ae52e2"},"schema_version":"1.0"},"canonical_sha256":"c0b094847572b278d69f57430d72ea6a556c382a39e3029b104ec85532ad4dc4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T01:06:04.099189Z","signature_b64":"+zvEnoXytbHeJ3zJnUEkR91bvqPkjpyAEeHaF9cBLAbab3gt5J30EcE/xyISdv92wFXo/n1JFg7WiGBY6SFhDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0b094847572b278d69f57430d72ea6a556c382a39e3029b104ec85532ad4dc4","last_reissued_at":"2026-06-03T01:06:04.098786Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T01:06:04.098786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.03671","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":"2026-06-03T01:06:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xmh/nWbFDlmLOwwJsy+/e0ix2vUN9q9xOk96HQXuayZMOgRzN4Ax3ErBDBlRGuuZfWJfuQxgAM2wk3zy+UL+Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T11:43:21.506153Z"},"content_sha256":"6af9ec85147b31323ba41dfad644d934392439d5d02d47feb7db1cf46bf33553","schema_version":"1.0","event_id":"sha256:6af9ec85147b31323ba41dfad644d934392439d5d02d47feb7db1cf46bf33553"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:YCYJJBDVOKZHRVU7K5BQ24XKNJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum Matter Makes Lightcones Quantum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th","quant-ph"],"primary_cat":"gr-qc","authors_text":"Misao Sasaki, Tomohiro Fujita","submitted_at":"2026-06-02T13:55:33Z","abstract_excerpt":"In gravitational physics, matter does not merely move within spacetime; it also determines the light cones that define causal relations. What happens when the matter that determines these light cones is itself in a quantum state? We address this question in a controlled low-energy setting: a massless scalar field propagating in the spacetime with the Newtonian gravitational potential sourced by a non-relativistic quantum particle. We show that the light cones are affected by an operator-valued Shapiro delay, with the three consequences: (i) causal-boundary shifts are promoted to noncommuting o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03671","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/2606.03671/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":"2026-06-03T01:06:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VYkkMY6FKEoWcGv4BOGJNvcZhwUKi/JaRE/b6skHYmimv5Od8Sqc8X31bQwxrVSO43mMMikrn2kgegyDxbNgCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T11:43:21.506542Z"},"content_sha256":"327a43f8ca921e813640693c605303d80998bacc9d2e696d28cdbd8e94eb8f8c","schema_version":"1.0","event_id":"sha256:327a43f8ca921e813640693c605303d80998bacc9d2e696d28cdbd8e94eb8f8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/bundle.json","state_url":"https://pith.science/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/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":"2026-06-29T11:43:21Z","links":{"resolver":"https://pith.science/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ","bundle":"https://pith.science/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/bundle.json","state":"https://pith.science/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YCYJJBDVOKZHRVU7K5BQ24XKNJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YCYJJBDVOKZHRVU7K5BQ24XKNJ","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":"9e066e6259103473315d8d3eb6c7d09d0f113c0fcf6011f3b14d27ff43ae52e2","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-02T13:55:33Z","title_canon_sha256":"702c4dfa7806ef7ebf911959110049c366abb86adf5a314f55bcdf40be2afac8"},"schema_version":"1.0","source":{"id":"2606.03671","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03671","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03671v1","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03671","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_12","alias_value":"YCYJJBDVOKZH","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_16","alias_value":"YCYJJBDVOKZHRVU7","created_at":"2026-06-03T01:06:04Z"},{"alias_kind":"pith_short_8","alias_value":"YCYJJBDV","created_at":"2026-06-03T01:06:04Z"}],"graph_snapshots":[{"event_id":"sha256:327a43f8ca921e813640693c605303d80998bacc9d2e696d28cdbd8e94eb8f8c","target":"graph","created_at":"2026-06-03T01:06:04Z","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/2606.03671/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In gravitational physics, matter does not merely move within spacetime; it also determines the light cones that define causal relations. What happens when the matter that determines these light cones is itself in a quantum state? We address this question in a controlled low-energy setting: a massless scalar field propagating in the spacetime with the Newtonian gravitational potential sourced by a non-relativistic quantum particle. We show that the light cones are affected by an operator-valued Shapiro delay, with the three consequences: (i) causal-boundary shifts are promoted to noncommuting o","authors_text":"Misao Sasaki, Tomohiro Fujita","cross_cats":["hep-th","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-02T13:55:33Z","title":"Quantum Matter Makes Lightcones Quantum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03671","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":"sha256:6af9ec85147b31323ba41dfad644d934392439d5d02d47feb7db1cf46bf33553","target":"record","created_at":"2026-06-03T01:06:04Z","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":"9e066e6259103473315d8d3eb6c7d09d0f113c0fcf6011f3b14d27ff43ae52e2","cross_cats_sorted":["hep-th","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-06-02T13:55:33Z","title_canon_sha256":"702c4dfa7806ef7ebf911959110049c366abb86adf5a314f55bcdf40be2afac8"},"schema_version":"1.0","source":{"id":"2606.03671","kind":"arxiv","version":1}},"canonical_sha256":"c0b094847572b278d69f57430d72ea6a556c382a39e3029b104ec85532ad4dc4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0b094847572b278d69f57430d72ea6a556c382a39e3029b104ec85532ad4dc4","first_computed_at":"2026-06-03T01:06:04.098786Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T01:06:04.098786Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+zvEnoXytbHeJ3zJnUEkR91bvqPkjpyAEeHaF9cBLAbab3gt5J30EcE/xyISdv92wFXo/n1JFg7WiGBY6SFhDQ==","signature_status":"signed_v1","signed_at":"2026-06-03T01:06:04.099189Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.03671","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6af9ec85147b31323ba41dfad644d934392439d5d02d47feb7db1cf46bf33553","sha256:327a43f8ca921e813640693c605303d80998bacc9d2e696d28cdbd8e94eb8f8c"],"state_sha256":"20906bac748a26ef004ef413bd448ae24de6d8a4b0616e7e0dc622560738bf71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d8Xp/HteMEgxGCylnusO21tOk6OlKfKMYtPxGzfp5AhL+ZkW9Vlzi3faLKo2H5sZDkG0zWwB5J6e91O876lxBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T11:43:21.508473Z","bundle_sha256":"d4720c9578ec24e98e7e8e9f024d65ac1654cad142dcbe7e129bcbc341bfd3bb"}}