{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:KZKBU3RGYGOZFSGAULY7YGN4YZ","short_pith_number":"pith:KZKBU3RG","canonical_record":{"source":{"id":"1510.06345","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-21T17:33:08Z","cross_cats_sorted":[],"title_canon_sha256":"eb67f72e2139e8083e1b2dfee944821f2f53212344cab9cc437b95d064cbad12","abstract_canon_sha256":"39136b96ccfdfa602315bb51f8bd8875ce50aec38ecd5656f9000c074aae9fcb"},"schema_version":"1.0"},"canonical_sha256":"56541a6e26c19d92c8c0a2f1fc19bcc6626f3567c046b459539da887aa1214d1","source":{"kind":"arxiv","id":"1510.06345","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06345","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06345v2","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06345","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"pith_short_12","alias_value":"KZKBU3RGYGOZ","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZKBU3RGYGOZFSGA","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZKBU3RG","created_at":"2026-05-18T12:29:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:KZKBU3RGYGOZFSGAULY7YGN4YZ","target":"record","payload":{"canonical_record":{"source":{"id":"1510.06345","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-21T17:33:08Z","cross_cats_sorted":[],"title_canon_sha256":"eb67f72e2139e8083e1b2dfee944821f2f53212344cab9cc437b95d064cbad12","abstract_canon_sha256":"39136b96ccfdfa602315bb51f8bd8875ce50aec38ecd5656f9000c074aae9fcb"},"schema_version":"1.0"},"canonical_sha256":"56541a6e26c19d92c8c0a2f1fc19bcc6626f3567c046b459539da887aa1214d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:38.171931Z","signature_b64":"07/TF8yGwWkk4ToIVWSlHWhKpn/UNiGEkm4C0kdzj1xuSwvCzJcYTRBeabTKfkVmfUIYAq4orgh/M9mmexiyBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56541a6e26c19d92c8c0a2f1fc19bcc6626f3567c046b459539da887aa1214d1","last_reissued_at":"2026-05-18T00:57:38.171471Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:38.171471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.06345","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":"2026-05-18T00:57:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HZOWBLtbdq0uRI83bfFveKfvmvSx4qCRWS1uFbEw0YhOwcXYQUO6ODekZCmr7V09jfZYTXqlWxdPaus/4oU8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:11:23.430670Z"},"content_sha256":"8d520aa9437a7d89d38bcb30167657c84521a06bf415ee21cf9e787d0cc82ad6","schema_version":"1.0","event_id":"sha256:8d520aa9437a7d89d38bcb30167657c84521a06bf415ee21cf9e787d0cc82ad6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:KZKBU3RGYGOZFSGAULY7YGN4YZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Indefinite causal structures for continuous-variable systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Esteban Castro-Ruiz, Flaminia Giacomini, \\v{C}aslav Brukner","submitted_at":"2015-10-21T17:33:08Z","abstract_excerpt":"In all our well-established theories, it is assumed that events are embedded in a global causal structure such that, for every pair of events, the causal order between them is always fixed. However, the possible interplay between quantum mechanics and general relativity may require a revision of this paradigm. The process matrix framework keeps the validity of quantum physics locally but does not assume the existence of a global causal order. It allows to describe causal structures corresponding to a quantum superposition of 'A is before B' and 'B is before A'. So far, the framework has been d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06345","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":"2026-05-18T00:57:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"17bgIz0SEO+l2rbFUjqjZ0v6ODxoQN78W63FUHHjYBjlbo0yqF0mHgu2e+QIrJsGoZGUw92/ArU3JGTqUka1AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:11:23.431346Z"},"content_sha256":"43f9af4a4ac3e76976e3ee71d6ecd58dd91be3b175210de0828d24a0b640ffe4","schema_version":"1.0","event_id":"sha256:43f9af4a4ac3e76976e3ee71d6ecd58dd91be3b175210de0828d24a0b640ffe4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/bundle.json","state_url":"https://pith.science/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/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":"2026-05-25T20:11:23Z","links":{"resolver":"https://pith.science/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ","bundle":"https://pith.science/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/bundle.json","state":"https://pith.science/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZKBU3RGYGOZFSGAULY7YGN4YZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:KZKBU3RGYGOZFSGAULY7YGN4YZ","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":"39136b96ccfdfa602315bb51f8bd8875ce50aec38ecd5656f9000c074aae9fcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-21T17:33:08Z","title_canon_sha256":"eb67f72e2139e8083e1b2dfee944821f2f53212344cab9cc437b95d064cbad12"},"schema_version":"1.0","source":{"id":"1510.06345","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.06345","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"arxiv_version","alias_value":"1510.06345v2","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.06345","created_at":"2026-05-18T00:57:38Z"},{"alias_kind":"pith_short_12","alias_value":"KZKBU3RGYGOZ","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"KZKBU3RGYGOZFSGA","created_at":"2026-05-18T12:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"KZKBU3RG","created_at":"2026-05-18T12:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:43f9af4a4ac3e76976e3ee71d6ecd58dd91be3b175210de0828d24a0b640ffe4","target":"graph","created_at":"2026-05-18T00:57:38Z","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":"In all our well-established theories, it is assumed that events are embedded in a global causal structure such that, for every pair of events, the causal order between them is always fixed. However, the possible interplay between quantum mechanics and general relativity may require a revision of this paradigm. The process matrix framework keeps the validity of quantum physics locally but does not assume the existence of a global causal order. It allows to describe causal structures corresponding to a quantum superposition of 'A is before B' and 'B is before A'. So far, the framework has been d","authors_text":"Esteban Castro-Ruiz, Flaminia Giacomini, \\v{C}aslav Brukner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-21T17:33:08Z","title":"Indefinite causal structures for continuous-variable systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.06345","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":"sha256:8d520aa9437a7d89d38bcb30167657c84521a06bf415ee21cf9e787d0cc82ad6","target":"record","created_at":"2026-05-18T00:57:38Z","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":"39136b96ccfdfa602315bb51f8bd8875ce50aec38ecd5656f9000c074aae9fcb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-21T17:33:08Z","title_canon_sha256":"eb67f72e2139e8083e1b2dfee944821f2f53212344cab9cc437b95d064cbad12"},"schema_version":"1.0","source":{"id":"1510.06345","kind":"arxiv","version":2}},"canonical_sha256":"56541a6e26c19d92c8c0a2f1fc19bcc6626f3567c046b459539da887aa1214d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56541a6e26c19d92c8c0a2f1fc19bcc6626f3567c046b459539da887aa1214d1","first_computed_at":"2026-05-18T00:57:38.171471Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:38.171471Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"07/TF8yGwWkk4ToIVWSlHWhKpn/UNiGEkm4C0kdzj1xuSwvCzJcYTRBeabTKfkVmfUIYAq4orgh/M9mmexiyBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:38.171931Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.06345","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d520aa9437a7d89d38bcb30167657c84521a06bf415ee21cf9e787d0cc82ad6","sha256:43f9af4a4ac3e76976e3ee71d6ecd58dd91be3b175210de0828d24a0b640ffe4"],"state_sha256":"95223c697dceb876d141a72656c2e0384dc141187fcc30017da0d3c42a85e1e8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z0XepcoWXV7pEpEEKXyZiwDUav4pfnNI0F/tv6a2Y5iedCdwBtIolOMH600FrXiO9QnxqF8VSovjM6zc8qhhAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:11:23.435243Z","bundle_sha256":"7c8944c33ec7fe318175da4725117035edbea41a67dc764e73e77354dfb20239"}}