{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JELKPAPAGZFM6MBLWAW2JDNQRG","short_pith_number":"pith:JELKPAPA","canonical_record":{"source":{"id":"1709.06368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-19T12:14:34Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"83c7bceea3b21cf687651e11f9bcf3c02f82c389d4fffbc6e54b69c14d09dc81","abstract_canon_sha256":"e863f37d2f3e2409d4b83ea5628743cbb6bb43c11f67a205180583441ed2f7a2"},"schema_version":"1.0"},"canonical_sha256":"4916a781e0364acf302bb02da48db08997cb377bb9d67405896669ab0606f750","source":{"kind":"arxiv","id":"1709.06368","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06368","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06368v1","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06368","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"pith_short_12","alias_value":"JELKPAPAGZFM","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JELKPAPAGZFM6MBL","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JELKPAPA","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JELKPAPAGZFM6MBLWAW2JDNQRG","target":"record","payload":{"canonical_record":{"source":{"id":"1709.06368","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-19T12:14:34Z","cross_cats_sorted":["physics.acc-ph"],"title_canon_sha256":"83c7bceea3b21cf687651e11f9bcf3c02f82c389d4fffbc6e54b69c14d09dc81","abstract_canon_sha256":"e863f37d2f3e2409d4b83ea5628743cbb6bb43c11f67a205180583441ed2f7a2"},"schema_version":"1.0"},"canonical_sha256":"4916a781e0364acf302bb02da48db08997cb377bb9d67405896669ab0606f750","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:34:53.412627Z","signature_b64":"SuaIZR66hgjN/hyGgnySErUr517FksUBNvOk8yUNypgGZj89UhwjrzyKIqy1/3CuhwA/spad3BsWfMp8IUCODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4916a781e0364acf302bb02da48db08997cb377bb9d67405896669ab0606f750","last_reissued_at":"2026-05-18T00:34:53.411926Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:34:53.411926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.06368","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":"2026-05-18T00:34:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2SdYlbuAIuQPQuJLDBpXkDi/AMyyaISyYAITZWWUJM0fDHl/Y8R7F6Vk/KgA0vUhFUQTN5hFLn2Xko8IpiDUAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:23:26.092705Z"},"content_sha256":"a9d375f5bb157d0d9a944eb844e02a6a7bc9e6d266e678b13c413735154f429a","schema_version":"1.0","event_id":"sha256:a9d375f5bb157d0d9a944eb844e02a6a7bc9e6d266e678b13c413735154f429a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JELKPAPAGZFM6MBLWAW2JDNQRG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing laser-driven proton acceleration by using micro-pillar arrays at high drive energy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["physics.acc-ph"],"primary_cat":"physics.plasm-ph","authors_text":"Bj\\\"orn Borm, Dimitri Khaghani, Felix G\\\"artner, Florian Wagner, Laurent Gremillet, Liana Movsesyan, Lo\\\"ic Burr, Maria Eugenia Toimil-Molares, Mathieu Lobet, Olga Rosmej, Paul Neumayer","submitted_at":"2017-09-19T12:14:34Z","abstract_excerpt":"The interaction of micro- and nano-structured target surfaces with high-power laser pulses is being widely investigated for its unprecedented absorption efficiency. We have developed vertically aligned metallic micro-pillar arrays for laser-driven proton acceleration experiments. We demonstrate that such targets help strengthen interaction mechanisms when irradiated with high-energy-class laser pulses of intensities $\\sim$ $10^{17-18}$ W/cm$^2$. In comparison with standard planar targets, we witness strongly enhanced hot-electron production and proton acceleration both in terms of maximum ener"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06368","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":""},"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":"2026-05-18T00:34:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Arg3VqSvMEPA6sZZ3rEhq3+oJS15aN0bGZT+75cCw1pJ0DTsRniawDbTUSXAcroaKSTsia0+MDiaRpMmeYcfBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T21:23:26.093053Z"},"content_sha256":"3872805a6845a89f904098ebdd8310e6e1a0a7e024fa8309e5bc4c8f35a299b0","schema_version":"1.0","event_id":"sha256:3872805a6845a89f904098ebdd8310e6e1a0a7e024fa8309e5bc4c8f35a299b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/bundle.json","state_url":"https://pith.science/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/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":"2026-05-31T21:23:26Z","links":{"resolver":"https://pith.science/pith/JELKPAPAGZFM6MBLWAW2JDNQRG","bundle":"https://pith.science/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/bundle.json","state":"https://pith.science/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JELKPAPAGZFM6MBLWAW2JDNQRG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JELKPAPAGZFM6MBLWAW2JDNQRG","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":"e863f37d2f3e2409d4b83ea5628743cbb6bb43c11f67a205180583441ed2f7a2","cross_cats_sorted":["physics.acc-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-19T12:14:34Z","title_canon_sha256":"83c7bceea3b21cf687651e11f9bcf3c02f82c389d4fffbc6e54b69c14d09dc81"},"schema_version":"1.0","source":{"id":"1709.06368","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06368","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06368v1","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06368","created_at":"2026-05-18T00:34:53Z"},{"alias_kind":"pith_short_12","alias_value":"JELKPAPAGZFM","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JELKPAPAGZFM6MBL","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JELKPAPA","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:3872805a6845a89f904098ebdd8310e6e1a0a7e024fa8309e5bc4c8f35a299b0","target":"graph","created_at":"2026-05-18T00:34:53Z","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 interaction of micro- and nano-structured target surfaces with high-power laser pulses is being widely investigated for its unprecedented absorption efficiency. We have developed vertically aligned metallic micro-pillar arrays for laser-driven proton acceleration experiments. We demonstrate that such targets help strengthen interaction mechanisms when irradiated with high-energy-class laser pulses of intensities $\\sim$ $10^{17-18}$ W/cm$^2$. In comparison with standard planar targets, we witness strongly enhanced hot-electron production and proton acceleration both in terms of maximum ener","authors_text":"Bj\\\"orn Borm, Dimitri Khaghani, Felix G\\\"artner, Florian Wagner, Laurent Gremillet, Liana Movsesyan, Lo\\\"ic Burr, Maria Eugenia Toimil-Molares, Mathieu Lobet, Olga Rosmej, Paul Neumayer","cross_cats":["physics.acc-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-19T12:14:34Z","title":"Enhancing laser-driven proton acceleration by using micro-pillar arrays at high drive energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06368","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:a9d375f5bb157d0d9a944eb844e02a6a7bc9e6d266e678b13c413735154f429a","target":"record","created_at":"2026-05-18T00:34:53Z","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":"e863f37d2f3e2409d4b83ea5628743cbb6bb43c11f67a205180583441ed2f7a2","cross_cats_sorted":["physics.acc-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-19T12:14:34Z","title_canon_sha256":"83c7bceea3b21cf687651e11f9bcf3c02f82c389d4fffbc6e54b69c14d09dc81"},"schema_version":"1.0","source":{"id":"1709.06368","kind":"arxiv","version":1}},"canonical_sha256":"4916a781e0364acf302bb02da48db08997cb377bb9d67405896669ab0606f750","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4916a781e0364acf302bb02da48db08997cb377bb9d67405896669ab0606f750","first_computed_at":"2026-05-18T00:34:53.411926Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:53.411926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SuaIZR66hgjN/hyGgnySErUr517FksUBNvOk8yUNypgGZj89UhwjrzyKIqy1/3CuhwA/spad3BsWfMp8IUCODQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:53.412627Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.06368","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9d375f5bb157d0d9a944eb844e02a6a7bc9e6d266e678b13c413735154f429a","sha256:3872805a6845a89f904098ebdd8310e6e1a0a7e024fa8309e5bc4c8f35a299b0"],"state_sha256":"70dab36fe385fe2b0a73acef36418e1c8a172ae9504423509c3abbd50d0c1a27"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UvKiU2l5y4L5dJeAYZBwln7e0d5TyQ8TThMwZr4zTAOlmVhrO0wXSDXXoC3CD6yYl31eoHPNQehRAjsAXLn9Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T21:23:26.094921Z","bundle_sha256":"3ba2934b3692c2c2f55e41058695d9afefe13d8472258a0911c59fff1b646412"}}