{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:5IPRQ3BQXTBUYOQF2UD77PVJUF","short_pith_number":"pith:5IPRQ3BQ","canonical_record":{"source":{"id":"2203.09529","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2022-03-17T18:00:02Z","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"title_canon_sha256":"5c4c2466f34655b04b2b5093b410241b2a01fb96953516f372a49b7aaa56f140","abstract_canon_sha256":"d06c4f732d90365b8b29c0fa9f9bbd010ba7080f633d3e8bf35b0a6c17ec15cb"},"schema_version":"1.0"},"canonical_sha256":"ea1f186c30bcc34c3a05d507ffbea9a151e22925488d45e7860ab8f10b082430","source":{"kind":"arxiv","id":"2203.09529","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.09529","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"arxiv_version","alias_value":"2203.09529v2","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.09529","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_12","alias_value":"5IPRQ3BQXTBU","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_16","alias_value":"5IPRQ3BQXTBUYOQF","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_8","alias_value":"5IPRQ3BQ","created_at":"2026-07-05T06:03:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:5IPRQ3BQXTBUYOQF2UD77PVJUF","target":"record","payload":{"canonical_record":{"source":{"id":"2203.09529","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2022-03-17T18:00:02Z","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"title_canon_sha256":"5c4c2466f34655b04b2b5093b410241b2a01fb96953516f372a49b7aaa56f140","abstract_canon_sha256":"d06c4f732d90365b8b29c0fa9f9bbd010ba7080f633d3e8bf35b0a6c17ec15cb"},"schema_version":"1.0"},"canonical_sha256":"ea1f186c30bcc34c3a05d507ffbea9a151e22925488d45e7860ab8f10b082430","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:03:53.440880Z","signature_b64":"u/03XwNyTHWwqCbH2coU+Iey4BAnV1OJy4AKfUN+rj+cVMbfaFuuHRRDm6azrnRNadJ8NmvxEkGiPJ6E75AcDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea1f186c30bcc34c3a05d507ffbea9a151e22925488d45e7860ab8f10b082430","last_reissued_at":"2026-07-05T06:03:53.440472Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:03:53.440472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.09529","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":"2026-07-05T06:03:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l10zoqkvVPa8zn7/8A2h55A4w9oOP9RQ1qplUlvb/NIoM5K1ptc6j0aewtoz9TnSjDIVSdSqq7Wc1MRAMaXDDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T13:01:02.948106Z"},"content_sha256":"e24e3e14511230e687c2110fb432ba62716489729bde14e0c07bda2cd9dadc13","schema_version":"1.0","event_id":"sha256:e24e3e14511230e687c2110fb432ba62716489729bde14e0c07bda2cd9dadc13"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:5IPRQ3BQXTBUYOQF2UD77PVJUF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Asymptotic measurement schemes for every observable of a quantum field theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th","math.MP"],"primary_cat":"math-ph","authors_text":"Christopher J. Fewster, Ian Jubb, Maximilian H. Ruep","submitted_at":"2022-03-17T18:00:02Z","abstract_excerpt":"In quantum measurement theory, a measurement scheme describes how an observable of a given system can be measured indirectly using a probe. The measurement scheme involves the specification of a probe theory, an initial probe state, a probe observable and a coupling between the system and the probe, so that a measurement of the probe observable after the coupling has ceased reproduces (in expectation) the result of measuring the system observable in the system state. Recent work has shown how local and causal measurement schemes may be described in the context of model-independent quantum fiel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.09529","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2203.09529/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":"2026-07-05T06:03:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kXyk3I7P1hGS050Z6jjWO2aY3Leek0PlR7x2XZV/xtyHosbXx3LEN/O6fu0ZhunjaUNOFLvhxGlkNegwZDTyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T13:01:02.948414Z"},"content_sha256":"f009236446bc612a249413916d35af55620c91b9a8b898f2f62d9a36755cc1cf","schema_version":"1.0","event_id":"sha256:f009236446bc612a249413916d35af55620c91b9a8b898f2f62d9a36755cc1cf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/bundle.json","state_url":"https://pith.science/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/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":"2026-07-31T13:01:02Z","links":{"resolver":"https://pith.science/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF","bundle":"https://pith.science/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/bundle.json","state":"https://pith.science/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5IPRQ3BQXTBUYOQF2UD77PVJUF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:5IPRQ3BQXTBUYOQF2UD77PVJUF","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":"d06c4f732d90365b8b29c0fa9f9bbd010ba7080f633d3e8bf35b0a6c17ec15cb","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2022-03-17T18:00:02Z","title_canon_sha256":"5c4c2466f34655b04b2b5093b410241b2a01fb96953516f372a49b7aaa56f140"},"schema_version":"1.0","source":{"id":"2203.09529","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.09529","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"arxiv_version","alias_value":"2203.09529v2","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.09529","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_12","alias_value":"5IPRQ3BQXTBU","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_16","alias_value":"5IPRQ3BQXTBUYOQF","created_at":"2026-07-05T06:03:53Z"},{"alias_kind":"pith_short_8","alias_value":"5IPRQ3BQ","created_at":"2026-07-05T06:03:53Z"}],"graph_snapshots":[{"event_id":"sha256:f009236446bc612a249413916d35af55620c91b9a8b898f2f62d9a36755cc1cf","target":"graph","created_at":"2026-07-05T06:03:53Z","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/2203.09529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In quantum measurement theory, a measurement scheme describes how an observable of a given system can be measured indirectly using a probe. The measurement scheme involves the specification of a probe theory, an initial probe state, a probe observable and a coupling between the system and the probe, so that a measurement of the probe observable after the coupling has ceased reproduces (in expectation) the result of measuring the system observable in the system state. Recent work has shown how local and causal measurement schemes may be described in the context of model-independent quantum fiel","authors_text":"Christopher J. Fewster, Ian Jubb, Maximilian H. Ruep","cross_cats":["gr-qc","hep-th","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2022-03-17T18:00:02Z","title":"Asymptotic measurement schemes for every observable of a quantum field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.09529","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:e24e3e14511230e687c2110fb432ba62716489729bde14e0c07bda2cd9dadc13","target":"record","created_at":"2026-07-05T06:03:53Z","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":"d06c4f732d90365b8b29c0fa9f9bbd010ba7080f633d3e8bf35b0a6c17ec15cb","cross_cats_sorted":["gr-qc","hep-th","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math-ph","submitted_at":"2022-03-17T18:00:02Z","title_canon_sha256":"5c4c2466f34655b04b2b5093b410241b2a01fb96953516f372a49b7aaa56f140"},"schema_version":"1.0","source":{"id":"2203.09529","kind":"arxiv","version":2}},"canonical_sha256":"ea1f186c30bcc34c3a05d507ffbea9a151e22925488d45e7860ab8f10b082430","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea1f186c30bcc34c3a05d507ffbea9a151e22925488d45e7860ab8f10b082430","first_computed_at":"2026-07-05T06:03:53.440472Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:03:53.440472Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u/03XwNyTHWwqCbH2coU+Iey4BAnV1OJy4AKfUN+rj+cVMbfaFuuHRRDm6azrnRNadJ8NmvxEkGiPJ6E75AcDA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:03:53.440880Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.09529","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e24e3e14511230e687c2110fb432ba62716489729bde14e0c07bda2cd9dadc13","sha256:f009236446bc612a249413916d35af55620c91b9a8b898f2f62d9a36755cc1cf"],"state_sha256":"fc8d506732ddadb61e45f61db81820d94449c1d359980abeb4eb4d153a11d898"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KvJ3fKv0MC2XPpLbaHUcQ/+6XLqmrNMdZo4XKTfAsMzWs1v6EXwCKXQ53N1xLZLIeL+cPYs+0zsng7a8bc2dDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T13:01:02.951079Z","bundle_sha256":"850a6e4a270b4e5f99b3036b15ac5f21f1d29df9efad324d133167f9d5dfc456"}}