{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:3OGUKC6ZT5SM6TL3QBQO6JCLAX","short_pith_number":"pith:3OGUKC6Z","canonical_record":{"source":{"id":"2607.03538","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-03T18:00:05Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"979f27f3729e2a83490757e85f2a6b3a219af7a52fc3206d5b0ba9e02c35e482","abstract_canon_sha256":"64a2b972f69c5e4f86cc6aaacf06382bf3141a9bf9b0e62b5188466e5a062ad4"},"schema_version":"1.0"},"canonical_sha256":"db8d450bd99f64cf4d7b8060ef244b05d14178310fc578041e87f723f3d6264c","source":{"kind":"arxiv","id":"2607.03538","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03538","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03538v1","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03538","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_12","alias_value":"3OGUKC6ZT5SM","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_16","alias_value":"3OGUKC6ZT5SM6TL3","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_8","alias_value":"3OGUKC6Z","created_at":"2026-07-07T02:17:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:3OGUKC6ZT5SM6TL3QBQO6JCLAX","target":"record","payload":{"canonical_record":{"source":{"id":"2607.03538","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-03T18:00:05Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"979f27f3729e2a83490757e85f2a6b3a219af7a52fc3206d5b0ba9e02c35e482","abstract_canon_sha256":"64a2b972f69c5e4f86cc6aaacf06382bf3141a9bf9b0e62b5188466e5a062ad4"},"schema_version":"1.0"},"canonical_sha256":"db8d450bd99f64cf4d7b8060ef244b05d14178310fc578041e87f723f3d6264c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-07T02:17:52.464388Z","signature_b64":"9XgiUAaEoBhLSwm10jxUJUU8uCPs5O3zN6H1qttL8ORvvlQVTCH3punN36daFkIV4Q27mOz+40DDR9yrnBAYDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"db8d450bd99f64cf4d7b8060ef244b05d14178310fc578041e87f723f3d6264c","last_reissued_at":"2026-07-07T02:17:52.463692Z","signature_status":"signed_v1","first_computed_at":"2026-07-07T02:17:52.463692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.03538","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":"2026-07-07T02:17:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1kDo2oJZNUzS1lEvObRIodKHEYQVhPLeJ4i08xPMhYgUdX/lDqOaDkWBFrqwjJ533EZnZoSKHxpVpCmZFsTaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:51:02.377913Z"},"content_sha256":"3e287e9d197d72de18fe3dec9b826f9b1037fcd24938935ea0a25ca9eaf13e24","schema_version":"1.0","event_id":"sha256:3e287e9d197d72de18fe3dec9b826f9b1037fcd24938935ea0a25ca9eaf13e24"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:3OGUKC6ZT5SM6TL3QBQO6JCLAX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The arrival position problem in quantum mechanics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Ali Ayatollah Rafsanjani, Will Cavendish","submitted_at":"2026-07-03T18:00:05Z","abstract_excerpt":"The problem of making unambiguous probabilistic predictions about experiments involving waiting \"always on\" detectors remains a challenge for quantum theory. While most research on this problem studies arrival time, i.e., predicting the distribution of when detection events occur, this paper studies the arrival position problem, which is the complementary challenge of predicting the distribution of where detection events occur. Despite the widespread recognition of the arrival time problem, the inability of standard quantum theory to address the arrival position problem remains a pervasive the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03538","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/2607.03538/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":"2026-07-07T02:17:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ME0Ma/SfhJHUjajNPzOK9gDoG2nn5s+fu2lLx5Ola3PVglVJWEG+NEtBsniptqIk30iSjJ9+z/gRmC6L8WIfCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T16:51:02.378442Z"},"content_sha256":"24c0dad4d14d7b771643e251e79d2ceb8b7f4e8fea3b7a14fba05fe9d1931b7b","schema_version":"1.0","event_id":"sha256:24c0dad4d14d7b771643e251e79d2ceb8b7f4e8fea3b7a14fba05fe9d1931b7b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/bundle.json","state_url":"https://pith.science/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/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":"2026-08-03T16:51:02Z","links":{"resolver":"https://pith.science/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX","bundle":"https://pith.science/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/bundle.json","state":"https://pith.science/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3OGUKC6ZT5SM6TL3QBQO6JCLAX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:3OGUKC6ZT5SM6TL3QBQO6JCLAX","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":"64a2b972f69c5e4f86cc6aaacf06382bf3141a9bf9b0e62b5188466e5a062ad4","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-03T18:00:05Z","title_canon_sha256":"979f27f3729e2a83490757e85f2a6b3a219af7a52fc3206d5b0ba9e02c35e482"},"schema_version":"1.0","source":{"id":"2607.03538","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.03538","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"arxiv_version","alias_value":"2607.03538v1","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.03538","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_12","alias_value":"3OGUKC6ZT5SM","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_16","alias_value":"3OGUKC6ZT5SM6TL3","created_at":"2026-07-07T02:17:52Z"},{"alias_kind":"pith_short_8","alias_value":"3OGUKC6Z","created_at":"2026-07-07T02:17:52Z"}],"graph_snapshots":[{"event_id":"sha256:24c0dad4d14d7b771643e251e79d2ceb8b7f4e8fea3b7a14fba05fe9d1931b7b","target":"graph","created_at":"2026-07-07T02:17:52Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2607.03538/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The problem of making unambiguous probabilistic predictions about experiments involving waiting \"always on\" detectors remains a challenge for quantum theory. While most research on this problem studies arrival time, i.e., predicting the distribution of when detection events occur, this paper studies the arrival position problem, which is the complementary challenge of predicting the distribution of where detection events occur. Despite the widespread recognition of the arrival time problem, the inability of standard quantum theory to address the arrival position problem remains a pervasive the","authors_text":"Ali Ayatollah Rafsanjani, Will Cavendish","cross_cats":["physics.atom-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-03T18:00:05Z","title":"The arrival position problem in quantum mechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.03538","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":"sha256:3e287e9d197d72de18fe3dec9b826f9b1037fcd24938935ea0a25ca9eaf13e24","target":"record","created_at":"2026-07-07T02:17:52Z","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":"64a2b972f69c5e4f86cc6aaacf06382bf3141a9bf9b0e62b5188466e5a062ad4","cross_cats_sorted":["physics.atom-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-03T18:00:05Z","title_canon_sha256":"979f27f3729e2a83490757e85f2a6b3a219af7a52fc3206d5b0ba9e02c35e482"},"schema_version":"1.0","source":{"id":"2607.03538","kind":"arxiv","version":1}},"canonical_sha256":"db8d450bd99f64cf4d7b8060ef244b05d14178310fc578041e87f723f3d6264c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"db8d450bd99f64cf4d7b8060ef244b05d14178310fc578041e87f723f3d6264c","first_computed_at":"2026-07-07T02:17:52.463692Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-07T02:17:52.463692Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9XgiUAaEoBhLSwm10jxUJUU8uCPs5O3zN6H1qttL8ORvvlQVTCH3punN36daFkIV4Q27mOz+40DDR9yrnBAYDw==","signature_status":"signed_v1","signed_at":"2026-07-07T02:17:52.464388Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.03538","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e287e9d197d72de18fe3dec9b826f9b1037fcd24938935ea0a25ca9eaf13e24","sha256:24c0dad4d14d7b771643e251e79d2ceb8b7f4e8fea3b7a14fba05fe9d1931b7b"],"state_sha256":"0f378cfb846524d1209bf3529692ee74a016bcdf33a99f5c62f615811be20d3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c4/YxW8OfqyT6biYCAtaiM09ODUPD8EbaZNSM6y3ykvRWBTomDDx4JSY87M7kNCtYOxZ0OtiTR9pjQEMlKvFCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T16:51:02.383415Z","bundle_sha256":"d3d318c761ae450eb1450d90740566b00bf6ed391b626d7592006c92087bac48"}}