{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2022:6L2IF73U6TCONMP75HCUSY7IMO","short_pith_number":"pith:6L2IF73U","schema_version":"1.0","canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","source":{"kind":"arxiv","id":"2203.11245","version":4},"attestation_state":"computed","paper":{"title":"Embedding cyclic information-theoretic structures in acyclic spacetimes: no-go results for indefinite causality","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Renato Renner, V. Vilasini","submitted_at":"2022-03-21T18:12:44Z","abstract_excerpt":"The notions of causality adopted within the quantum information and spacetime physics communities are distinct. Although both notions play a role in physical experiments, their general interplay is little understood in theory. We develop a theoretical framework that connects the two causality notions, while also clearly distinguishing them. The framework describes a composition of quantum operations through feedback loops, and the embedding of the resulting, possibly cyclic information-theoretic structure in an acyclic spacetime structure. Relativistic causality (which forbids superluminal com"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2203.11245","kind":"arxiv","version":4},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-21T18:12:44Z","cross_cats_sorted":[],"title_canon_sha256":"72c60eff7da1a72f1ca6aa6374b8a600bd99ca3b3e2d4b3955c1b81a6f9bfa0a","abstract_canon_sha256":"b142aee30807c3afbf72d962d032eebff2801f5d0fb0c32dcb8143eec1be7dff"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:16:42.992420Z","signature_b64":"7LX2D4JH90FSMzmdJmmQf+abKRUARZ95BOKGRHFiUBGxXglS7rTAi5L8VW8FwGOTNl+1NKAz5lSaVomAsi4TAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","last_reissued_at":"2026-07-05T09:16:42.991947Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:16:42.991947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Embedding cyclic information-theoretic structures in acyclic spacetimes: no-go results for indefinite causality","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Renato Renner, V. Vilasini","submitted_at":"2022-03-21T18:12:44Z","abstract_excerpt":"The notions of causality adopted within the quantum information and spacetime physics communities are distinct. Although both notions play a role in physical experiments, their general interplay is little understood in theory. We develop a theoretical framework that connects the two causality notions, while also clearly distinguishing them. The framework describes a composition of quantum operations through feedback loops, and the embedding of the resulting, possibly cyclic information-theoretic structure in an acyclic spacetime structure. Relativistic causality (which forbids superluminal com"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11245","kind":"arxiv","version":4},"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/2203.11245/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2203.11245","created_at":"2026-07-05T09:16:42.991996+00:00"},{"alias_kind":"arxiv_version","alias_value":"2203.11245v4","created_at":"2026-07-05T09:16:42.991996+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11245","created_at":"2026-07-05T09:16:42.991996+00:00"},{"alias_kind":"pith_short_12","alias_value":"6L2IF73U6TCO","created_at":"2026-07-05T09:16:42.991996+00:00"},{"alias_kind":"pith_short_16","alias_value":"6L2IF73U6TCONMP7","created_at":"2026-07-05T09:16:42.991996+00:00"},{"alias_kind":"pith_short_8","alias_value":"6L2IF73U","created_at":"2026-07-05T09:16:42.991996+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.20476","citing_title":"Impossibility of superluminal signalling rules out causal loops in conical spacetimes","ref_index":31,"is_internal_anchor":false},{"citing_arxiv_id":"2207.09180","citing_title":"Polycategorical Constructions for Unitary Supermaps of Arbitrary Dimension","ref_index":56,"is_internal_anchor":false},{"citing_arxiv_id":"2403.00916","citing_title":"Characterizing Signalling: Connections between Causal Inference and Space-time Geometry","ref_index":12,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO","json":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO.json","graph_json":"https://pith.science/api/pith-number/6L2IF73U6TCONMP75HCUSY7IMO/graph.json","events_json":"https://pith.science/api/pith-number/6L2IF73U6TCONMP75HCUSY7IMO/events.json","paper":"https://pith.science/paper/6L2IF73U"},"agent_actions":{"view_html":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO","download_json":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO.json","view_paper":"https://pith.science/paper/6L2IF73U","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2203.11245&json=true","fetch_graph":"https://pith.science/api/pith-number/6L2IF73U6TCONMP75HCUSY7IMO/graph.json","fetch_events":"https://pith.science/api/pith-number/6L2IF73U6TCONMP75HCUSY7IMO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/action/storage_attestation","attest_author":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/action/author_attestation","sign_citation":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/action/citation_signature","submit_replication":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/action/replication_record"}},"created_at":"2026-07-05T09:16:42.991996+00:00","updated_at":"2026-07-05T09:16:42.991996+00:00"}