{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:WTO4TCUCPMBDVP42ANM4P5PVDR","short_pith_number":"pith:WTO4TCUC","canonical_record":{"source":{"id":"1404.3039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2014-04-11T08:59:43Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"0f0c041b923d8ce5ad814c848308d21723bbf320677af072db4304c9ee5714cf","abstract_canon_sha256":"2318679e5f21206c49092965d348ba5521c3769c9869eb0b3132c63c66a630d7"},"schema_version":"1.0"},"canonical_sha256":"b4ddc98a827b023abf9a0359c7f5f51c5c463d2a70fbd86d717a36201f202cac","source":{"kind":"arxiv","id":"1404.3039","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3039","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3039v1","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3039","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"WTO4TCUCPMBD","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WTO4TCUCPMBDVP42","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WTO4TCUC","created_at":"2026-05-18T12:28:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:WTO4TCUCPMBDVP42ANM4P5PVDR","target":"record","payload":{"canonical_record":{"source":{"id":"1404.3039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2014-04-11T08:59:43Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"0f0c041b923d8ce5ad814c848308d21723bbf320677af072db4304c9ee5714cf","abstract_canon_sha256":"2318679e5f21206c49092965d348ba5521c3769c9869eb0b3132c63c66a630d7"},"schema_version":"1.0"},"canonical_sha256":"b4ddc98a827b023abf9a0359c7f5f51c5c463d2a70fbd86d717a36201f202cac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:54:22.623411Z","signature_b64":"aecpLPAuc5LrzD/fMZQfv1qUDfG/AnULPHm7IpPI/NCmCVNEXbsGjwl2DM/8eBXkpmlmU3wbVkxlI+0PV8m5Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4ddc98a827b023abf9a0359c7f5f51c5c463d2a70fbd86d717a36201f202cac","last_reissued_at":"2026-05-18T02:54:22.622987Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:54:22.622987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.3039","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":"2026-05-18T02:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lQBgrt/iWQVfBheG1yOwGNGCEMXHibUYAvnVzX9ck1YvXE/nRYIdtoe8FB/4jSjxFKlDmPqDMy0raCVHjfLDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T15:44:30.779058Z"},"content_sha256":"dbe5b990ab93c4fe9157277851ddb0a5546232838906c668a95511b111040271","schema_version":"1.0","event_id":"sha256:dbe5b990ab93c4fe9157277851ddb0a5546232838906c668a95511b111040271"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:WTO4TCUCPMBDVP42ANM4P5PVDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"physics.atm-clus","authors_text":"Emily Sistrunk, Jakob Grilj, Markus G\\\"uhr, Markus Koch, Thomas J. A. Wolf","submitted_at":"2014-04-11T08:59:43Z","abstract_excerpt":"We describe a setup to study ultrafast dynamics in gas-phase molecules using time-resolved photoelectron and photoion spectroscopy. The vacuum ultraviolet (VUV) probe pulses are generated via strong field high-order harmonic generation from infrared femtosecond laser pulses. The band pass characteristic in transmission of thin indium (In) metal foil is exploited to isolate the $9^{\\text{th}}$ harmonic of the 800 nm fundamental (H9, 14 eV, 89 nm) from all other high harmonics. The $9^{\\text{th}}$ harmonic is obtained with high conversion efficiencies and has sufficient photon energy to access t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3039","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":"2026-05-18T02:54:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LyVBY45sRN2HCJH9AL9y4YvcGKpHfayPZUU9igQ309np46uL6Y2i895M0bLrMfvHL00sUjztMcM15+wlC9WABw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T15:44:30.779997Z"},"content_sha256":"3958c4633a9f6a30b3b5f2490f8c2692df6020275947218cad96050211d1b6bb","schema_version":"1.0","event_id":"sha256:3958c4633a9f6a30b3b5f2490f8c2692df6020275947218cad96050211d1b6bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/bundle.json","state_url":"https://pith.science/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/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":"2026-08-18T15:44:30Z","links":{"resolver":"https://pith.science/pith/WTO4TCUCPMBDVP42ANM4P5PVDR","bundle":"https://pith.science/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/bundle.json","state":"https://pith.science/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WTO4TCUCPMBDVP42ANM4P5PVDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:WTO4TCUCPMBDVP42ANM4P5PVDR","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":"2318679e5f21206c49092965d348ba5521c3769c9869eb0b3132c63c66a630d7","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2014-04-11T08:59:43Z","title_canon_sha256":"0f0c041b923d8ce5ad814c848308d21723bbf320677af072db4304c9ee5714cf"},"schema_version":"1.0","source":{"id":"1404.3039","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.3039","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"arxiv_version","alias_value":"1404.3039v1","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.3039","created_at":"2026-05-18T02:54:22Z"},{"alias_kind":"pith_short_12","alias_value":"WTO4TCUCPMBD","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_16","alias_value":"WTO4TCUCPMBDVP42","created_at":"2026-05-18T12:28:54Z"},{"alias_kind":"pith_short_8","alias_value":"WTO4TCUC","created_at":"2026-05-18T12:28:54Z"}],"graph_snapshots":[{"event_id":"sha256:3958c4633a9f6a30b3b5f2490f8c2692df6020275947218cad96050211d1b6bb","target":"graph","created_at":"2026-05-18T02:54:22Z","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":"We describe a setup to study ultrafast dynamics in gas-phase molecules using time-resolved photoelectron and photoion spectroscopy. The vacuum ultraviolet (VUV) probe pulses are generated via strong field high-order harmonic generation from infrared femtosecond laser pulses. The band pass characteristic in transmission of thin indium (In) metal foil is exploited to isolate the $9^{\\text{th}}$ harmonic of the 800 nm fundamental (H9, 14 eV, 89 nm) from all other high harmonics. The $9^{\\text{th}}$ harmonic is obtained with high conversion efficiencies and has sufficient photon energy to access t","authors_text":"Emily Sistrunk, Jakob Grilj, Markus G\\\"uhr, Markus Koch, Thomas J. A. Wolf","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2014-04-11T08:59:43Z","title":"Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.3039","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:dbe5b990ab93c4fe9157277851ddb0a5546232838906c668a95511b111040271","target":"record","created_at":"2026-05-18T02:54:22Z","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":"2318679e5f21206c49092965d348ba5521c3769c9869eb0b3132c63c66a630d7","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2014-04-11T08:59:43Z","title_canon_sha256":"0f0c041b923d8ce5ad814c848308d21723bbf320677af072db4304c9ee5714cf"},"schema_version":"1.0","source":{"id":"1404.3039","kind":"arxiv","version":1}},"canonical_sha256":"b4ddc98a827b023abf9a0359c7f5f51c5c463d2a70fbd86d717a36201f202cac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4ddc98a827b023abf9a0359c7f5f51c5c463d2a70fbd86d717a36201f202cac","first_computed_at":"2026-05-18T02:54:22.622987Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:54:22.622987Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aecpLPAuc5LrzD/fMZQfv1qUDfG/AnULPHm7IpPI/NCmCVNEXbsGjwl2DM/8eBXkpmlmU3wbVkxlI+0PV8m5Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:54:22.623411Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.3039","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dbe5b990ab93c4fe9157277851ddb0a5546232838906c668a95511b111040271","sha256:3958c4633a9f6a30b3b5f2490f8c2692df6020275947218cad96050211d1b6bb"],"state_sha256":"4da00c680e83afe0238830d8a3b6aefe5f8c264a45517b82acc51858cee4d88b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0c0aCDecZSceZfujcAhLSp8UlXDGvWbyL9TWmRXKt3N1qrt5mgDNAEcfwJ8fwoO8uYVJ8qtLBF/z/+ZTKN3cAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T15:44:30.788826Z","bundle_sha256":"f557f4d326581f5cc0e36445d580e79a8f1337785d2ee5809475c6806aa13264"}}