{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:EVTMI26OBBD6KLVNMYMES442NI","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":"ee331a1dc1b6a6ba16352c7dcf6cec53145f648d7899ecbf51ca8ae923f196bc","cross_cats_sorted":["hep-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-07-29T16:26:22Z","title_canon_sha256":"e540a2d3d2f485facad9525449bdc6918a077683b5d5d26ad5419332126df9e3"},"schema_version":"1.0","source":{"id":"1608.00604","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.00604","created_at":"2026-05-18T01:10:11Z"},{"alias_kind":"arxiv_version","alias_value":"1608.00604v1","created_at":"2026-05-18T01:10:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.00604","created_at":"2026-05-18T01:10:11Z"},{"alias_kind":"pith_short_12","alias_value":"EVTMI26OBBD6","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"EVTMI26OBBD6KLVN","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"EVTMI26O","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:9773ce056eb1c705861e181be1fc4c1c7fbe813f043b759d44ad1d7845cc5e9a","target":"graph","created_at":"2026-05-18T01:10:11Z","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 experiment described in this paper is the first study of the response of a static tungsten powder sample to an impinging high energy proton beam pulse. The experiment was carried out at the HiRadMat facility at CERN. Observations include high speed videos of a proton beam induced perturbation of the powder sample as well as data from a laser Doppler vibrometer measuring the oscillations of the powder container. A comparison with a previous analogous experiment which studied a proton beam interaction with mercury is made","authors_text":"A. Fabich, Chris Densham, I. Efthymiopoulos, Joey O' Dell, L. Rivkin, Mike Fitton, N. Charitonidis, Ottone Caretta, Peter Loveridge, Tristan Davenne","cross_cats":["hep-ex","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-07-29T16:26:22Z","title":"Response of a tungsten powder target to an incident high energy proton beam"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.00604","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":"sha256:7fa49105173cbaa2c90d662f2a1505f7af31f0fee0dd04448c5045557288a443","target":"record","created_at":"2026-05-18T01:10:11Z","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":"ee331a1dc1b6a6ba16352c7dcf6cec53145f648d7899ecbf51ca8ae923f196bc","cross_cats_sorted":["hep-ex","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.acc-ph","submitted_at":"2016-07-29T16:26:22Z","title_canon_sha256":"e540a2d3d2f485facad9525449bdc6918a077683b5d5d26ad5419332126df9e3"},"schema_version":"1.0","source":{"id":"1608.00604","kind":"arxiv","version":1}},"canonical_sha256":"2566c46bce0847e52ead661849739a6a0e563e89ebbf24f9027a1662c5143a9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2566c46bce0847e52ead661849739a6a0e563e89ebbf24f9027a1662c5143a9f","first_computed_at":"2026-05-18T01:10:11.399850Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:11.399850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EG5gSVKKqzlsuTZOPk2E+/m8mCF9tGEKw//Zi6T3jCXdZmr2UipihUGSTAyBXUE+sRA1ALDIrTTcesDWxgobCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:11.400412Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.00604","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fa49105173cbaa2c90d662f2a1505f7af31f0fee0dd04448c5045557288a443","sha256:9773ce056eb1c705861e181be1fc4c1c7fbe813f043b759d44ad1d7845cc5e9a"],"state_sha256":"770c56c7b1a1b39bd51640d75f81e6a50023fdc5e15001b08a779d8fb1fa34f1"}