{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:T7EFXZ7FHHHSUXRZXPI3E2HWJM","short_pith_number":"pith:T7EFXZ7F","canonical_record":{"source":{"id":"1808.07376","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-08-22T14:15:47Z","cross_cats_sorted":[],"title_canon_sha256":"371e99e71eef16592da63b79ccb9747fe4927398bad20c097d0941cbe9f44b28","abstract_canon_sha256":"d824e9a11b7f86247e4c273cbbec38fc00b49e412b6b04d3ef6501314a40aabc"},"schema_version":"1.0"},"canonical_sha256":"9fc85be7e539cf2a5e39bbd1b268f64b31e9d557ff06752956bc7fbdf940cd3f","source":{"kind":"arxiv","id":"1808.07376","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07376","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07376v3","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07376","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"pith_short_12","alias_value":"T7EFXZ7FHHHS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T7EFXZ7FHHHSUXRZ","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T7EFXZ7F","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:T7EFXZ7FHHHSUXRZXPI3E2HWJM","target":"record","payload":{"canonical_record":{"source":{"id":"1808.07376","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-08-22T14:15:47Z","cross_cats_sorted":[],"title_canon_sha256":"371e99e71eef16592da63b79ccb9747fe4927398bad20c097d0941cbe9f44b28","abstract_canon_sha256":"d824e9a11b7f86247e4c273cbbec38fc00b49e412b6b04d3ef6501314a40aabc"},"schema_version":"1.0"},"canonical_sha256":"9fc85be7e539cf2a5e39bbd1b268f64b31e9d557ff06752956bc7fbdf940cd3f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:13.020990Z","signature_b64":"8Ren907QYSJP8c7RGQPPED41tdxBGVdK4T2rhLrE+X0SDn2RUiN/o/TFFNKh+X4HtlhHQ3Iu+H2Fg9Wna6yyDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fc85be7e539cf2a5e39bbd1b268f64b31e9d557ff06752956bc7fbdf940cd3f","last_reissued_at":"2026-05-17T23:41:13.020475Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:13.020475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.07376","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:41:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSXkinih3J2lgZwPjZL+EJg/gt066mpSxS5LpkCBO2veTvvI28bHaHkYdX2L8TNOjzbxGF272KQQ49CJ6n5sDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:21:39.550129Z"},"content_sha256":"dcc8fe4b6df56107ea2562410fca028e6cf73d46a98ad150d33e38ed913fb79f","schema_version":"1.0","event_id":"sha256:dcc8fe4b6df56107ea2562410fca028e6cf73d46a98ad150d33e38ed913fb79f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:T7EFXZ7FHHHSUXRZXPI3E2HWJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"No-free-information principle in general probabilistic theories","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Leevi Lepp\\\"aj\\\"arvi, Martin Pl\\'avala, Teiko Heinosaari","submitted_at":"2018-08-22T14:15:47Z","abstract_excerpt":"In quantum theory, the no-information-without-disturbance and no-free-information theorems express that those observables that do not disturb the measurement of another observable and those that can be measured jointly with any other observable must be trivial, i.e., coin tossing observables. We show that in the framework of general probabilistic theories these statements do not hold in general and continue to completely specify these two classes of observables. In this way, we obtain characterizations of the probabilistic theories where these statements hold. As a particular class of state sp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07376","kind":"arxiv","version":3},"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":"2026-05-17T23:41:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LP19YKOaRuR954/3p9VYZ8zUohjSVZqwAX0S8xN9e0rmwoMJmpQA2D7TIZo0pY8mVFmVlS6bHNx3xNxxS5rMDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:21:39.550816Z"},"content_sha256":"64c693c6ce36fb5ac17c393a56d143298e36d07e402b58c8db80278902bee57c","schema_version":"1.0","event_id":"sha256:64c693c6ce36fb5ac17c393a56d143298e36d07e402b58c8db80278902bee57c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/bundle.json","state_url":"https://pith.science/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/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":"2026-05-25T12:21:39Z","links":{"resolver":"https://pith.science/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM","bundle":"https://pith.science/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/bundle.json","state":"https://pith.science/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T7EFXZ7FHHHSUXRZXPI3E2HWJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:T7EFXZ7FHHHSUXRZXPI3E2HWJM","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":"d824e9a11b7f86247e4c273cbbec38fc00b49e412b6b04d3ef6501314a40aabc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-08-22T14:15:47Z","title_canon_sha256":"371e99e71eef16592da63b79ccb9747fe4927398bad20c097d0941cbe9f44b28"},"schema_version":"1.0","source":{"id":"1808.07376","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.07376","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"arxiv_version","alias_value":"1808.07376v3","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.07376","created_at":"2026-05-17T23:41:13Z"},{"alias_kind":"pith_short_12","alias_value":"T7EFXZ7FHHHS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T7EFXZ7FHHHSUXRZ","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T7EFXZ7F","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:64c693c6ce36fb5ac17c393a56d143298e36d07e402b58c8db80278902bee57c","target":"graph","created_at":"2026-05-17T23:41:13Z","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 quantum theory, the no-information-without-disturbance and no-free-information theorems express that those observables that do not disturb the measurement of another observable and those that can be measured jointly with any other observable must be trivial, i.e., coin tossing observables. We show that in the framework of general probabilistic theories these statements do not hold in general and continue to completely specify these two classes of observables. In this way, we obtain characterizations of the probabilistic theories where these statements hold. As a particular class of state sp","authors_text":"Leevi Lepp\\\"aj\\\"arvi, Martin Pl\\'avala, Teiko Heinosaari","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-08-22T14:15:47Z","title":"No-free-information principle in general probabilistic theories"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.07376","kind":"arxiv","version":3},"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:dcc8fe4b6df56107ea2562410fca028e6cf73d46a98ad150d33e38ed913fb79f","target":"record","created_at":"2026-05-17T23:41:13Z","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":"d824e9a11b7f86247e4c273cbbec38fc00b49e412b6b04d3ef6501314a40aabc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2018-08-22T14:15:47Z","title_canon_sha256":"371e99e71eef16592da63b79ccb9747fe4927398bad20c097d0941cbe9f44b28"},"schema_version":"1.0","source":{"id":"1808.07376","kind":"arxiv","version":3}},"canonical_sha256":"9fc85be7e539cf2a5e39bbd1b268f64b31e9d557ff06752956bc7fbdf940cd3f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fc85be7e539cf2a5e39bbd1b268f64b31e9d557ff06752956bc7fbdf940cd3f","first_computed_at":"2026-05-17T23:41:13.020475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:13.020475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Ren907QYSJP8c7RGQPPED41tdxBGVdK4T2rhLrE+X0SDn2RUiN/o/TFFNKh+X4HtlhHQ3Iu+H2Fg9Wna6yyDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:13.020990Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.07376","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcc8fe4b6df56107ea2562410fca028e6cf73d46a98ad150d33e38ed913fb79f","sha256:64c693c6ce36fb5ac17c393a56d143298e36d07e402b58c8db80278902bee57c"],"state_sha256":"a4185751d2002d486879b5836f905c3c8d7e2dc6ffeed41e1ddd835576640024"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SdqjIT1e59izm+fcIj6tupGiTGrd5rCNxwFC9Lzgn/7MDKeDoFJjegAkzaeOcFqtpS0Jdzbk6bR6w2cYtS3GCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:21:39.554687Z","bundle_sha256":"61b9ba2716f730b6d857cff16f0d60b2f432df48831850b3191ee284b6ab21d2"}}