{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:DFLHW34JWLYGU7R5CFRBGNWX7O","short_pith_number":"pith:DFLHW34J","canonical_record":{"source":{"id":"2606.19438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-17T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"92ae3bec33503d82fab20992cb9b90296b4b7896ca1d0310e20da70c9f3c3376","abstract_canon_sha256":"b8bb2069355eb8ade9843e2e54e8f90662ca3436baa882e3af9cd57ea909b006"},"schema_version":"1.0"},"canonical_sha256":"19567b6f89b2f06a7e3d11621336d7fb9f8e1b500c15fa625620c797c1744337","source":{"kind":"arxiv","id":"2606.19438","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.19438","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"arxiv_version","alias_value":"2606.19438v1","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19438","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_12","alias_value":"DFLHW34JWLYG","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_16","alias_value":"DFLHW34JWLYGU7R5","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_8","alias_value":"DFLHW34J","created_at":"2026-06-19T16:12:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:DFLHW34JWLYGU7R5CFRBGNWX7O","target":"record","payload":{"canonical_record":{"source":{"id":"2606.19438","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-17T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"92ae3bec33503d82fab20992cb9b90296b4b7896ca1d0310e20da70c9f3c3376","abstract_canon_sha256":"b8bb2069355eb8ade9843e2e54e8f90662ca3436baa882e3af9cd57ea909b006"},"schema_version":"1.0"},"canonical_sha256":"19567b6f89b2f06a7e3d11621336d7fb9f8e1b500c15fa625620c797c1744337","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:12:25.668704Z","signature_b64":"gDZy8kfQRSXb7I71T/JyLf8y9Q3Ips5lui5pdQ4dXDZwLUPYqBYL+jl/pNDGFV12hqBKtQTfv3sOkuvJXC/mCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19567b6f89b2f06a7e3d11621336d7fb9f8e1b500c15fa625620c797c1744337","last_reissued_at":"2026-06-19T16:12:25.668330Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:12:25.668330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.19438","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":"2026-06-19T16:12:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9FMBdEFQQZ+1UKVhLlV+LvLK4+jtgF8qjBZCcO7Rqx0YZTgXrKdSa1HzDabRTACZhgf6ildpn3zPTHAnyvFYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:27:55.727136Z"},"content_sha256":"a4c8ac81a5e1ec8c7c852e66a350a36f1ee9f02ae6bb176c74ac3bb3479ee0ae","schema_version":"1.0","event_id":"sha256:a4c8ac81a5e1ec8c7c852e66a350a36f1ee9f02ae6bb176c74ac3bb3479ee0ae"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:DFLHW34JWLYGU7R5CFRBGNWX7O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Indefinite Quantum Causality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Cyril Branciard, Fabio Costa, Giulia Rubino, Marco T\\'ulio Quintino, \\v{C}aslav Brukner","submitted_at":"2026-06-17T18:00:02Z","abstract_excerpt":"In recent years, operational approaches to quantum foundations have been developed as a means of understanding the core principles and distinctive features of quantum theory. Such approaches typically view physical processes as sequences of operations, with earlier operations serving as causes of later effects. However, a growing literature is emerging on the possibility of relaxing this assumption and allowing for quantum indefiniteness in the causal order. This development stems from a variety of motivations, both fundamental and applied, including exploring the role of causality in quantum "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19438","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/2606.19438/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":"2026-06-19T16:12:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cc5WBcmzG5/eLNKagCGYSkru2nSI33CJY7bdhp5yJv6PptEqMeKYtxdDgorxgr1HKrBoJjve5t5RL8qxc7zqBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:27:55.727526Z"},"content_sha256":"49e3fdacbc5a5e1d11ee11a1e6597448bab028a5d34ff0dca93d51022915e897","schema_version":"1.0","event_id":"sha256:49e3fdacbc5a5e1d11ee11a1e6597448bab028a5d34ff0dca93d51022915e897"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/bundle.json","state_url":"https://pith.science/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/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":"2026-06-28T23:27:55Z","links":{"resolver":"https://pith.science/pith/DFLHW34JWLYGU7R5CFRBGNWX7O","bundle":"https://pith.science/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/bundle.json","state":"https://pith.science/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DFLHW34JWLYGU7R5CFRBGNWX7O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:DFLHW34JWLYGU7R5CFRBGNWX7O","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":"b8bb2069355eb8ade9843e2e54e8f90662ca3436baa882e3af9cd57ea909b006","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-17T18:00:02Z","title_canon_sha256":"92ae3bec33503d82fab20992cb9b90296b4b7896ca1d0310e20da70c9f3c3376"},"schema_version":"1.0","source":{"id":"2606.19438","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.19438","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"arxiv_version","alias_value":"2606.19438v1","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19438","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_12","alias_value":"DFLHW34JWLYG","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_16","alias_value":"DFLHW34JWLYGU7R5","created_at":"2026-06-19T16:12:25Z"},{"alias_kind":"pith_short_8","alias_value":"DFLHW34J","created_at":"2026-06-19T16:12:25Z"}],"graph_snapshots":[{"event_id":"sha256:49e3fdacbc5a5e1d11ee11a1e6597448bab028a5d34ff0dca93d51022915e897","target":"graph","created_at":"2026-06-19T16:12:25Z","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/2606.19438/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In recent years, operational approaches to quantum foundations have been developed as a means of understanding the core principles and distinctive features of quantum theory. Such approaches typically view physical processes as sequences of operations, with earlier operations serving as causes of later effects. However, a growing literature is emerging on the possibility of relaxing this assumption and allowing for quantum indefiniteness in the causal order. This development stems from a variety of motivations, both fundamental and applied, including exploring the role of causality in quantum ","authors_text":"Cyril Branciard, Fabio Costa, Giulia Rubino, Marco T\\'ulio Quintino, \\v{C}aslav Brukner","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-17T18:00:02Z","title":"Indefinite Quantum Causality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19438","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:a4c8ac81a5e1ec8c7c852e66a350a36f1ee9f02ae6bb176c74ac3bb3479ee0ae","target":"record","created_at":"2026-06-19T16:12:25Z","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":"b8bb2069355eb8ade9843e2e54e8f90662ca3436baa882e3af9cd57ea909b006","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-06-17T18:00:02Z","title_canon_sha256":"92ae3bec33503d82fab20992cb9b90296b4b7896ca1d0310e20da70c9f3c3376"},"schema_version":"1.0","source":{"id":"2606.19438","kind":"arxiv","version":1}},"canonical_sha256":"19567b6f89b2f06a7e3d11621336d7fb9f8e1b500c15fa625620c797c1744337","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19567b6f89b2f06a7e3d11621336d7fb9f8e1b500c15fa625620c797c1744337","first_computed_at":"2026-06-19T16:12:25.668330Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:12:25.668330Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gDZy8kfQRSXb7I71T/JyLf8y9Q3Ips5lui5pdQ4dXDZwLUPYqBYL+jl/pNDGFV12hqBKtQTfv3sOkuvJXC/mCA==","signature_status":"signed_v1","signed_at":"2026-06-19T16:12:25.668704Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.19438","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a4c8ac81a5e1ec8c7c852e66a350a36f1ee9f02ae6bb176c74ac3bb3479ee0ae","sha256:49e3fdacbc5a5e1d11ee11a1e6597448bab028a5d34ff0dca93d51022915e897"],"state_sha256":"6b29a2f1747a3817a32de5dbd3633ead078bf7bbb7753105c7007b0d30299d39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sRMwYNT54JOV59pH8yitH0iS0aleWLyUJGSGHKuGv0ItfA23BdqmTkFcU00W36ZkDHcNvJOOtwa+1mgI4HKAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T23:27:55.729511Z","bundle_sha256":"5bec327166e198352e312cb152daa61de3512b85444081d1f653c20d21193917"}}