{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:EJJKAUZTXP5IDNCG6C4NED4Q5Q","short_pith_number":"pith:EJJKAUZT","canonical_record":{"source":{"id":"0811.0531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-11-04T14:51:58Z","cross_cats_sorted":[],"title_canon_sha256":"ca0e07f606a50aa7658167be830ecad3acb37a4ad3a3abce86dc2d4195dd1799","abstract_canon_sha256":"f6c0f65c5ba170c04b2758170b02d7c3e914fab4484910deb7a9d34d73d6dc2b"},"schema_version":"1.0"},"canonical_sha256":"2252a05333bbfa81b446f0b8d20f90ec33d4b73a56f53a793a263fa87d23582f","source":{"kind":"arxiv","id":"0811.0531","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.0531","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"0811.0531v2","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.0531","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"EJJKAUZTXP5I","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"EJJKAUZTXP5IDNCG","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"EJJKAUZT","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:EJJKAUZTXP5IDNCG6C4NED4Q5Q","target":"record","payload":{"canonical_record":{"source":{"id":"0811.0531","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-11-04T14:51:58Z","cross_cats_sorted":[],"title_canon_sha256":"ca0e07f606a50aa7658167be830ecad3acb37a4ad3a3abce86dc2d4195dd1799","abstract_canon_sha256":"f6c0f65c5ba170c04b2758170b02d7c3e914fab4484910deb7a9d34d73d6dc2b"},"schema_version":"1.0"},"canonical_sha256":"2252a05333bbfa81b446f0b8d20f90ec33d4b73a56f53a793a263fa87d23582f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:52.432893Z","signature_b64":"AXb11xmF57NrOsCLtvVEtzG9gqq9xE+tL+ae0xMeMsDs6DzQi96w0R+gBXFuFaqwFC2XgpD4bwyt0v/OU3FtCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2252a05333bbfa81b446f0b8d20f90ec33d4b73a56f53a793a263fa87d23582f","last_reissued_at":"2026-05-18T02:37:52.432306Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:52.432306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0811.0531","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":"2026-05-18T02:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xDzEUdEgeT8toMYy/8v5TxHB9/Z4Bcq+TZT60ak9GyaHV3kUH0VR+ksKnqny7LXHwdNLP38xO49OcfCxx7UcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:43:14.725501Z"},"content_sha256":"be41e2966b12282792255df1a3ca77d09ead07542795faa8cae31e3b19cbbd4f","schema_version":"1.0","event_id":"sha256:be41e2966b12282792255df1a3ca77d09ead07542795faa8cae31e3b19cbbd4f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:EJJKAUZTXP5IDNCG6C4NED4Q5Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Hilbert Space Representation of Generalized Observables and Measurement Processes in the ESR Model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Claudio Garola, Sandro Sozzo","submitted_at":"2008-11-04T14:51:58Z","abstract_excerpt":"The extended semantic realism (ESR) model recently worked out by one of the authors embodies the mathematical formalism of standard (Hilbert space) quantum mechanics in a noncontextual framework, reinterpreting quantum probabilities as conditional instead of absolute. We provide here a Hilbert space representation of the generalized observables introduced by the ESR model that satisfy a simple physical condition, propose a generalization of the projection postulate, and suggest a possible mathematical description of the measurement process in terms of evolution of the compound system made up o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.0531","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":""},"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":"2026-05-18T02:37:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CnnCiAdO7cGHy83cjSoQL/7lk8+7YDQu+qJ61DzC7V7+mNHCjIkkgDsGXM+RYWHmDLF7cPy2fJJgN1l56MD3CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T06:43:14.725857Z"},"content_sha256":"5b3d949125ee09e9aed8c2b05c87d5be3327360c8868f5caf6332c00b2ca2663","schema_version":"1.0","event_id":"sha256:5b3d949125ee09e9aed8c2b05c87d5be3327360c8868f5caf6332c00b2ca2663"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/bundle.json","state_url":"https://pith.science/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/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":"2026-06-01T06:43:14Z","links":{"resolver":"https://pith.science/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q","bundle":"https://pith.science/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/bundle.json","state":"https://pith.science/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EJJKAUZTXP5IDNCG6C4NED4Q5Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:EJJKAUZTXP5IDNCG6C4NED4Q5Q","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":"f6c0f65c5ba170c04b2758170b02d7c3e914fab4484910deb7a9d34d73d6dc2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-11-04T14:51:58Z","title_canon_sha256":"ca0e07f606a50aa7658167be830ecad3acb37a4ad3a3abce86dc2d4195dd1799"},"schema_version":"1.0","source":{"id":"0811.0531","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.0531","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"arxiv_version","alias_value":"0811.0531v2","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.0531","created_at":"2026-05-18T02:37:52Z"},{"alias_kind":"pith_short_12","alias_value":"EJJKAUZTXP5I","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"EJJKAUZTXP5IDNCG","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"EJJKAUZT","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:5b3d949125ee09e9aed8c2b05c87d5be3327360c8868f5caf6332c00b2ca2663","target":"graph","created_at":"2026-05-18T02:37:52Z","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":"The extended semantic realism (ESR) model recently worked out by one of the authors embodies the mathematical formalism of standard (Hilbert space) quantum mechanics in a noncontextual framework, reinterpreting quantum probabilities as conditional instead of absolute. We provide here a Hilbert space representation of the generalized observables introduced by the ESR model that satisfy a simple physical condition, propose a generalization of the projection postulate, and suggest a possible mathematical description of the measurement process in terms of evolution of the compound system made up o","authors_text":"Claudio Garola, Sandro Sozzo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-11-04T14:51:58Z","title":"A Hilbert Space Representation of Generalized Observables and Measurement Processes in the ESR Model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.0531","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:be41e2966b12282792255df1a3ca77d09ead07542795faa8cae31e3b19cbbd4f","target":"record","created_at":"2026-05-18T02:37:52Z","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":"f6c0f65c5ba170c04b2758170b02d7c3e914fab4484910deb7a9d34d73d6dc2b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2008-11-04T14:51:58Z","title_canon_sha256":"ca0e07f606a50aa7658167be830ecad3acb37a4ad3a3abce86dc2d4195dd1799"},"schema_version":"1.0","source":{"id":"0811.0531","kind":"arxiv","version":2}},"canonical_sha256":"2252a05333bbfa81b446f0b8d20f90ec33d4b73a56f53a793a263fa87d23582f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2252a05333bbfa81b446f0b8d20f90ec33d4b73a56f53a793a263fa87d23582f","first_computed_at":"2026-05-18T02:37:52.432306Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:52.432306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AXb11xmF57NrOsCLtvVEtzG9gqq9xE+tL+ae0xMeMsDs6DzQi96w0R+gBXFuFaqwFC2XgpD4bwyt0v/OU3FtCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:52.432893Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.0531","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be41e2966b12282792255df1a3ca77d09ead07542795faa8cae31e3b19cbbd4f","sha256:5b3d949125ee09e9aed8c2b05c87d5be3327360c8868f5caf6332c00b2ca2663"],"state_sha256":"91b53ef86cc2faa4047a43d40a770b3ae7192ac2e2af678f73507d4567d8f955"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jJvWiDgxb87Jya3oI07MihURupkOnnTchDmAyasv1FnZou+yh8BZ/FUGRk0COnqN9tPwAYQUUWoj/gxqB43ZAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T06:43:14.728000Z","bundle_sha256":"5fd1b3aa80d12e1e7a9209761d1ff495b520f8977dcd2692f81f458470a94320"}}