{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:HM4L2TDHC7VXADHQTIUU3X3LH3","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":"bc180ff948b3a2a9f2a924fb7de0aabeed8ab80bd9a01a24c3e5685b053feb23","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-09-24T19:49:25Z","title_canon_sha256":"c9e7a89afab5e85985a682d9b403261b0fd963a68af1b2c8068f219ee998aaf7"},"schema_version":"1.0","source":{"id":"1209.5380","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.5380","created_at":"2026-05-18T03:44:58Z"},{"alias_kind":"arxiv_version","alias_value":"1209.5380v1","created_at":"2026-05-18T03:44:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5380","created_at":"2026-05-18T03:44:58Z"},{"alias_kind":"pith_short_12","alias_value":"HM4L2TDHC7VX","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"HM4L2TDHC7VXADHQ","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"HM4L2TDH","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:97d04f18d91edb29d230ae0b266218653f4a511bc384e77f6fed091cff4620ee","target":"graph","created_at":"2026-05-18T03:44:58Z","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"},"paper":{"abstract_excerpt":"Experimental measurements of beam halo diffusion dynamics with collimator scans are reviewed. The concept of halo control with a hollow electron beam collimator, its demonstration at the Tevatron, and its possible applications at the LHC are discussed.","authors_text":"A. Didenko, A. Rossi, A. Valishev, B. Salvachua Ferrando, D. Shatilov, D. Still, G. Annala, G. Saewert, G. Stancari, G. Valentino, I. A. Morozov, L. G. Vorobiev, R. Bruce, R. W. Assmann, S. Redaelli, T. R. Johnson, V. Previtali, V. Shiltsev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-09-24T19:49:25Z","title":"Beam halo dynamics and control with hollow electron beams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5380","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":"sha256:993a29b715a1608699e9e744c2ae2fd1197a022728af4713127404a980134b6e","target":"record","created_at":"2026-05-18T03:44:58Z","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":"bc180ff948b3a2a9f2a924fb7de0aabeed8ab80bd9a01a24c3e5685b053feb23","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2012-09-24T19:49:25Z","title_canon_sha256":"c9e7a89afab5e85985a682d9b403261b0fd963a68af1b2c8068f219ee998aaf7"},"schema_version":"1.0","source":{"id":"1209.5380","kind":"arxiv","version":1}},"canonical_sha256":"3b38bd4c6717eb700cf09a294ddf6b3eebd6431c31c92c56ae553f37fab79198","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b38bd4c6717eb700cf09a294ddf6b3eebd6431c31c92c56ae553f37fab79198","first_computed_at":"2026-05-18T03:44:58.276063Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:44:58.276063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kJ4x5js3Evkza/PiX2u2vFCDVT1jNwGepM347Lf8YWwXwLNnY0w3l1wWvs9hBc+sC6K/JdZLmJGl6i2aOXxWDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:44:58.276608Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.5380","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:993a29b715a1608699e9e744c2ae2fd1197a022728af4713127404a980134b6e","sha256:97d04f18d91edb29d230ae0b266218653f4a511bc384e77f6fed091cff4620ee"],"state_sha256":"471f320aede856b6e8726af603ff5fb4186c77d262e752637e95280dc5c88d72"}