{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:6L2IF73U6TCONMP75HCUSY7IMO","short_pith_number":"pith:6L2IF73U","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"},"canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","source":{"kind":"arxiv","id":"2203.11245","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11245","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11245v4","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11245","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_12","alias_value":"6L2IF73U6TCO","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_16","alias_value":"6L2IF73U6TCONMP7","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_8","alias_value":"6L2IF73U","created_at":"2026-07-05T09:16:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:6L2IF73U6TCONMP75HCUSY7IMO","target":"record","payload":{"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"},"canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","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"},"source_kind":"arxiv","source_id":"2203.11245","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:16:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YkPbSAfY4coBiuyMRRvecCor0Sh5ZJQ6KX1zWq40a9EuRGQ3MM4aKkw1wp7WfR21OWcAmZ8on3hy98LTOUmLBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:13:09.347778Z"},"content_sha256":"eaea73914534a8294d776fd33cedc229e00a5d50fd916c86d24d5258582f3359","schema_version":"1.0","event_id":"sha256:eaea73914534a8294d776fd33cedc229e00a5d50fd916c86d24d5258582f3359"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:6L2IF73U6TCONMP75HCUSY7IMO","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:16:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3416YpmHyI5Ahk61AQLg48KpBKSWP5DM3BwrON3S0erfEXBrWugfNDXWvnBk1MoSEYzcmv4QTxaVQur8uhtfDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T03:13:09.348695Z"},"content_sha256":"968fdece10a0f3581216ed08f5b489ffe29fd4f394260a195cf144b247e8dbf2","schema_version":"1.0","event_id":"sha256:968fdece10a0f3581216ed08f5b489ffe29fd4f394260a195cf144b247e8dbf2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/bundle.json","state_url":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6L2IF73U6TCONMP75HCUSY7IMO/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":"2026-08-04T03:13:09Z","links":{"resolver":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO","bundle":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/bundle.json","state":"https://pith.science/pith/6L2IF73U6TCONMP75HCUSY7IMO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6L2IF73U6TCONMP75HCUSY7IMO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:6L2IF73U6TCONMP75HCUSY7IMO","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":"b142aee30807c3afbf72d962d032eebff2801f5d0fb0c32dcb8143eec1be7dff","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-21T18:12:44Z","title_canon_sha256":"72c60eff7da1a72f1ca6aa6374b8a600bd99ca3b3e2d4b3955c1b81a6f9bfa0a"},"schema_version":"1.0","source":{"id":"2203.11245","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11245","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11245v4","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11245","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_12","alias_value":"6L2IF73U6TCO","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_16","alias_value":"6L2IF73U6TCONMP7","created_at":"2026-07-05T09:16:42Z"},{"alias_kind":"pith_short_8","alias_value":"6L2IF73U","created_at":"2026-07-05T09:16:42Z"}],"graph_snapshots":[{"event_id":"sha256:968fdece10a0f3581216ed08f5b489ffe29fd4f394260a195cf144b247e8dbf2","target":"graph","created_at":"2026-07-05T09:16:42Z","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/2203.11245/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"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","authors_text":"Renato Renner, V. Vilasini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-21T18:12:44Z","title":"Embedding cyclic information-theoretic structures in acyclic spacetimes: no-go results for indefinite causality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11245","kind":"arxiv","version":4},"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:eaea73914534a8294d776fd33cedc229e00a5d50fd916c86d24d5258582f3359","target":"record","created_at":"2026-07-05T09:16:42Z","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":"b142aee30807c3afbf72d962d032eebff2801f5d0fb0c32dcb8143eec1be7dff","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2022-03-21T18:12:44Z","title_canon_sha256":"72c60eff7da1a72f1ca6aa6374b8a600bd99ca3b3e2d4b3955c1b81a6f9bfa0a"},"schema_version":"1.0","source":{"id":"2203.11245","kind":"arxiv","version":4}},"canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2f482ff74f4c4e6b1ffe9c54963e86383d5f384698ad3bc0847140d379fd8f4","first_computed_at":"2026-07-05T09:16:42.991947Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:16:42.991947Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7LX2D4JH90FSMzmdJmmQf+abKRUARZ95BOKGRHFiUBGxXglS7rTAi5L8VW8FwGOTNl+1NKAz5lSaVomAsi4TAg==","signature_status":"signed_v1","signed_at":"2026-07-05T09:16:42.992420Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.11245","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eaea73914534a8294d776fd33cedc229e00a5d50fd916c86d24d5258582f3359","sha256:968fdece10a0f3581216ed08f5b489ffe29fd4f394260a195cf144b247e8dbf2"],"state_sha256":"21026b798a3a9b12dbe7b6f4f505fba5edeffcd3a36a3b2d51051b3b1e1d1aad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B5tMTuJ0Ss9YucLrI/BhmK2bmjoiUrpRew41i+/Kt8vTTqkeqbZ6zq0qgiT8+62PFOO+0MDwirC2dtuxKTS3Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T03:13:09.408199Z","bundle_sha256":"9c4f73d98eb5499e343e3a60d3cdf84307e7241515f36af51cada653f5997723"}}