{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:DZZO3J5LJK5T2T3KNQODYUITUV","short_pith_number":"pith:DZZO3J5L","canonical_record":{"source":{"id":"1412.2264","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-06T19:10:56Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"ac80d89972fcbca07fcc56f1b390ab8537b75624c61bf7d8d6f1ca6f657d1a71","abstract_canon_sha256":"0effad33e77d2e4e65c4e1e342493c4242a81f804f8ead732ebca073a918038c"},"schema_version":"1.0"},"canonical_sha256":"1e72eda7ab4abb3d4f6a6c1c3c5113a56b597359a5815a19583e6c0d270bb47e","source":{"kind":"arxiv","id":"1412.2264","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.2264","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"1412.2264v3","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.2264","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"DZZO3J5LJK5T","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DZZO3J5LJK5T2T3K","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DZZO3J5L","created_at":"2026-05-18T12:28:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:DZZO3J5LJK5T2T3KNQODYUITUV","target":"record","payload":{"canonical_record":{"source":{"id":"1412.2264","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-06T19:10:56Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"ac80d89972fcbca07fcc56f1b390ab8537b75624c61bf7d8d6f1ca6f657d1a71","abstract_canon_sha256":"0effad33e77d2e4e65c4e1e342493c4242a81f804f8ead732ebca073a918038c"},"schema_version":"1.0"},"canonical_sha256":"1e72eda7ab4abb3d4f6a6c1c3c5113a56b597359a5815a19583e6c0d270bb47e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:18.371968Z","signature_b64":"xgMt2z2KBrQTUcwsea9SGb+tGsQj0h8MHb5dezlWGxLfCUqFR32BSeb6pe6splPL3/ctvQ3Xb2Yr4nXALwOjBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e72eda7ab4abb3d4f6a6c1c3c5113a56b597359a5815a19583e6c0d270bb47e","last_reissued_at":"2026-05-18T02:25:18.371624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:18.371624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1412.2264","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":"2026-05-18T02:25:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oL9AdQjw+D7l+jvt/NEZhNrSzC1rwxgYLUhR1N/cRuHqedRa8tqwDUjHlXkWBGuJRwV1HwmY6h3/W4EWdf3aDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:45:55.835034Z"},"content_sha256":"2e0e9661032d7f7baf8b286d4a1c5b7c420dd4a8fae68492e8515ef0bf608f37","schema_version":"1.0","event_id":"sha256:2e0e9661032d7f7baf8b286d4a1c5b7c420dd4a8fae68492e8515ef0bf608f37"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:DZZO3J5LJK5T2T3KNQODYUITUV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamical Pion Collapse and the Coherence of Conventional Neutrino Beams","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"B.J.P. Jones","submitted_at":"2014-12-06T19:10:56Z","abstract_excerpt":"In this paper we consider the coherence properties of neutrinos produced by the decays of pions in conventional neutrino beams. Using a multi-particle density matrix formalism we derive the oscillation probability for neutrinos emitted by a decaying pion in an arbitrary quantum state. Then, using methods from decoherence theory we calculate the pion state which evolves through interaction with decay-pipe gases in a typical accelerator neutrino experiment. These two ingredients are used to obtain the distance scales for neutrino beam coherence loss. We find that for the known neutrino mass spli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.2264","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":"2026-05-18T02:25:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2pqOGeSz+a3xm6qy3xsMRyA9wapoMtr8oV2h9umhGVaMlBt5ovhOY4XmR47HoLVRQZbfPfmiMk3dyAE1O1cyAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:45:55.835424Z"},"content_sha256":"224b2ff69d4150013260cf30e857b3151e13b4677ee4336dce9d07aa9a4744d7","schema_version":"1.0","event_id":"sha256:224b2ff69d4150013260cf30e857b3151e13b4677ee4336dce9d07aa9a4744d7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DZZO3J5LJK5T2T3KNQODYUITUV/bundle.json","state_url":"https://pith.science/pith/DZZO3J5LJK5T2T3KNQODYUITUV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DZZO3J5LJK5T2T3KNQODYUITUV/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":"2026-06-03T20:45:55Z","links":{"resolver":"https://pith.science/pith/DZZO3J5LJK5T2T3KNQODYUITUV","bundle":"https://pith.science/pith/DZZO3J5LJK5T2T3KNQODYUITUV/bundle.json","state":"https://pith.science/pith/DZZO3J5LJK5T2T3KNQODYUITUV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DZZO3J5LJK5T2T3KNQODYUITUV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:DZZO3J5LJK5T2T3KNQODYUITUV","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":"0effad33e77d2e4e65c4e1e342493c4242a81f804f8ead732ebca073a918038c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-06T19:10:56Z","title_canon_sha256":"ac80d89972fcbca07fcc56f1b390ab8537b75624c61bf7d8d6f1ca6f657d1a71"},"schema_version":"1.0","source":{"id":"1412.2264","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.2264","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"arxiv_version","alias_value":"1412.2264v3","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.2264","created_at":"2026-05-18T02:25:18Z"},{"alias_kind":"pith_short_12","alias_value":"DZZO3J5LJK5T","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"DZZO3J5LJK5T2T3K","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"DZZO3J5L","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:224b2ff69d4150013260cf30e857b3151e13b4677ee4336dce9d07aa9a4744d7","target":"graph","created_at":"2026-05-18T02:25:18Z","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 this paper we consider the coherence properties of neutrinos produced by the decays of pions in conventional neutrino beams. Using a multi-particle density matrix formalism we derive the oscillation probability for neutrinos emitted by a decaying pion in an arbitrary quantum state. Then, using methods from decoherence theory we calculate the pion state which evolves through interaction with decay-pipe gases in a typical accelerator neutrino experiment. These two ingredients are used to obtain the distance scales for neutrino beam coherence loss. We find that for the known neutrino mass spli","authors_text":"B.J.P. Jones","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-06T19:10:56Z","title":"Dynamical Pion Collapse and the Coherence of Conventional Neutrino Beams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.2264","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":"sha256:2e0e9661032d7f7baf8b286d4a1c5b7c420dd4a8fae68492e8515ef0bf608f37","target":"record","created_at":"2026-05-18T02:25:18Z","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":"0effad33e77d2e4e65c4e1e342493c4242a81f804f8ead732ebca073a918038c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-12-06T19:10:56Z","title_canon_sha256":"ac80d89972fcbca07fcc56f1b390ab8537b75624c61bf7d8d6f1ca6f657d1a71"},"schema_version":"1.0","source":{"id":"1412.2264","kind":"arxiv","version":3}},"canonical_sha256":"1e72eda7ab4abb3d4f6a6c1c3c5113a56b597359a5815a19583e6c0d270bb47e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e72eda7ab4abb3d4f6a6c1c3c5113a56b597359a5815a19583e6c0d270bb47e","first_computed_at":"2026-05-18T02:25:18.371624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:18.371624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xgMt2z2KBrQTUcwsea9SGb+tGsQj0h8MHb5dezlWGxLfCUqFR32BSeb6pe6splPL3/ctvQ3Xb2Yr4nXALwOjBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:18.371968Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.2264","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2e0e9661032d7f7baf8b286d4a1c5b7c420dd4a8fae68492e8515ef0bf608f37","sha256:224b2ff69d4150013260cf30e857b3151e13b4677ee4336dce9d07aa9a4744d7"],"state_sha256":"346bcbdfc2d319da53edc1dde08c17545d779516fd30aabe1c55150f1655401e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P6iMQAXm/KB+ff4LDClHmWRdtVm1rXoNl1GiL5zj4nEagzNcDNV+PvCv3YWJ/lvdDguUkAFloXWQHfaUKZyrBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T20:45:55.837811Z","bundle_sha256":"a79b226d77015345ec55d1f790258f865ab45bb35bd4276e03f03b6514800c8b"}}