{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:QVATXCX5PY77SGVWRAPAMT7LAU","short_pith_number":"pith:QVATXCX5","canonical_record":{"source":{"id":"0910.1332","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2009-10-07T18:21:56Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"40fd1adc84a424dc1f4ee5c284e98169072b9c7299732dff467b331cd39b83d6","abstract_canon_sha256":"8ccedf0f05b67bef78d5745393126ce6aadbed119b2b5d7739b5d237b3a77133"},"schema_version":"1.0"},"canonical_sha256":"85413b8afd7e3ff91ab6881e064feb0523f2d666fdc26b8f13bf7cee7e1ca71e","source":{"kind":"arxiv","id":"0910.1332","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1332","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1332v1","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1332","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_12","alias_value":"QVATXCX5PY77","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_16","alias_value":"QVATXCX5PY77SGVW","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_8","alias_value":"QVATXCX5","created_at":"2026-07-04T15:53:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:QVATXCX5PY77SGVWRAPAMT7LAU","target":"record","payload":{"canonical_record":{"source":{"id":"0910.1332","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2009-10-07T18:21:56Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"40fd1adc84a424dc1f4ee5c284e98169072b9c7299732dff467b331cd39b83d6","abstract_canon_sha256":"8ccedf0f05b67bef78d5745393126ce6aadbed119b2b5d7739b5d237b3a77133"},"schema_version":"1.0"},"canonical_sha256":"85413b8afd7e3ff91ab6881e064feb0523f2d666fdc26b8f13bf7cee7e1ca71e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:53:58.129232Z","signature_b64":"8jUzo5aI9bnuuqY/Q7K9cPSe3IxgE0jVzHxdfJo2Gm6DkMHnydXSvOA97aCHUJt+3kdjIgg+uLAZij0QrL6tAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85413b8afd7e3ff91ab6881e064feb0523f2d666fdc26b8f13bf7cee7e1ca71e","last_reissued_at":"2026-07-04T15:53:58.128876Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:53:58.128876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.1332","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":"2026-07-04T15:53:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m8lOMErSSfmXM9xOnxDEOR/RzwBrg3Us7zELLLtnKExTtWLfXu7xE6Pg5Tpu2v+mwLEGlULUwtc/De4ssj/aAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:26:26.031515Z"},"content_sha256":"efe0760dcb767ccb9406d35d9c4b637e4612cc44b0db0b771a1283e87531b04f","schema_version":"1.0","event_id":"sha256:efe0760dcb767ccb9406d35d9c4b637e4612cc44b0db0b771a1283e87531b04f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:QVATXCX5PY77SGVWRAPAMT7LAU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MICE Particle Identification Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.ins-det","authors_text":"D. A. Sanders","submitted_at":"2009-10-07T18:21:56Z","abstract_excerpt":"The international Muon Ionization Cooling Experiment (MICE) is being built, at the Rutherford Appleton Laboratory (RAL), to demonstrate the feasibility of ionization cooling of muon beams. This is one of the major technological steps needed in the development of a muon collider and a neutrino factory based on muon decays in a storage ring. MICE will use particle detectors to measure the cooling effect with high precision, achieving a precision on the measurement of emittance of 0.1% or better. The particle i.d. detectors and trackers must work in harsh environmental conditions due to high magn"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1332","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/0910.1332/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":"2026-07-04T15:53:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yKI66XeBQG+EMzQksk6P8u4gAiC4TBcEKjdvbNVI4cZ7/eLIfkZEwjhlOH7PqPJGETR7hLekj0gGT4o2FgKzCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:26:26.031881Z"},"content_sha256":"aa1b7485949b1c26f73799cc85d8b090ef0d2b9772304d75cc0f85acc588de86","schema_version":"1.0","event_id":"sha256:aa1b7485949b1c26f73799cc85d8b090ef0d2b9772304d75cc0f85acc588de86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QVATXCX5PY77SGVWRAPAMT7LAU/bundle.json","state_url":"https://pith.science/pith/QVATXCX5PY77SGVWRAPAMT7LAU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QVATXCX5PY77SGVWRAPAMT7LAU/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":"2026-07-07T15:26:26Z","links":{"resolver":"https://pith.science/pith/QVATXCX5PY77SGVWRAPAMT7LAU","bundle":"https://pith.science/pith/QVATXCX5PY77SGVWRAPAMT7LAU/bundle.json","state":"https://pith.science/pith/QVATXCX5PY77SGVWRAPAMT7LAU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QVATXCX5PY77SGVWRAPAMT7LAU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:QVATXCX5PY77SGVWRAPAMT7LAU","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":"8ccedf0f05b67bef78d5745393126ce6aadbed119b2b5d7739b5d237b3a77133","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2009-10-07T18:21:56Z","title_canon_sha256":"40fd1adc84a424dc1f4ee5c284e98169072b9c7299732dff467b331cd39b83d6"},"schema_version":"1.0","source":{"id":"0910.1332","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.1332","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"arxiv_version","alias_value":"0910.1332v1","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.1332","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_12","alias_value":"QVATXCX5PY77","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_16","alias_value":"QVATXCX5PY77SGVW","created_at":"2026-07-04T15:53:58Z"},{"alias_kind":"pith_short_8","alias_value":"QVATXCX5","created_at":"2026-07-04T15:53:58Z"}],"graph_snapshots":[{"event_id":"sha256:aa1b7485949b1c26f73799cc85d8b090ef0d2b9772304d75cc0f85acc588de86","target":"graph","created_at":"2026-07-04T15:53:58Z","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/0910.1332/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The international Muon Ionization Cooling Experiment (MICE) is being built, at the Rutherford Appleton Laboratory (RAL), to demonstrate the feasibility of ionization cooling of muon beams. This is one of the major technological steps needed in the development of a muon collider and a neutrino factory based on muon decays in a storage ring. MICE will use particle detectors to measure the cooling effect with high precision, achieving a precision on the measurement of emittance of 0.1% or better. The particle i.d. detectors and trackers must work in harsh environmental conditions due to high magn","authors_text":"D. A. Sanders","cross_cats":["physics.acc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2009-10-07T18:21:56Z","title":"MICE Particle Identification Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.1332","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:efe0760dcb767ccb9406d35d9c4b637e4612cc44b0db0b771a1283e87531b04f","target":"record","created_at":"2026-07-04T15:53:58Z","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":"8ccedf0f05b67bef78d5745393126ce6aadbed119b2b5d7739b5d237b3a77133","cross_cats_sorted":["physics.acc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2009-10-07T18:21:56Z","title_canon_sha256":"40fd1adc84a424dc1f4ee5c284e98169072b9c7299732dff467b331cd39b83d6"},"schema_version":"1.0","source":{"id":"0910.1332","kind":"arxiv","version":1}},"canonical_sha256":"85413b8afd7e3ff91ab6881e064feb0523f2d666fdc26b8f13bf7cee7e1ca71e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85413b8afd7e3ff91ab6881e064feb0523f2d666fdc26b8f13bf7cee7e1ca71e","first_computed_at":"2026-07-04T15:53:58.128876Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:53:58.128876Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8jUzo5aI9bnuuqY/Q7K9cPSe3IxgE0jVzHxdfJo2Gm6DkMHnydXSvOA97aCHUJt+3kdjIgg+uLAZij0QrL6tAw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:53:58.129232Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.1332","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:efe0760dcb767ccb9406d35d9c4b637e4612cc44b0db0b771a1283e87531b04f","sha256:aa1b7485949b1c26f73799cc85d8b090ef0d2b9772304d75cc0f85acc588de86"],"state_sha256":"8a0ba896379d62c8a9d7cc420b0523490c0f2c3cc5fd25488c1ca38c73c93467"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3HtXBz8W9X0gX4jXP7G0PXf8iQEq9JC0zp6O0q/qGe2Op4N2nhy1f0y15u8XkMTH6Ra2bCbPoMv2lwIiKCwBDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:26:26.033993Z","bundle_sha256":"87399381e21a980bec2e4c7e04079fee084196ad9df764e3da8d09d43b9545ac"}}