{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:OHM3EWJQK6PPTBEXVQNTE2P25V","short_pith_number":"pith:OHM3EWJQ","canonical_record":{"source":{"id":"1911.06090","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-11-14T13:43:05Z","cross_cats_sorted":[],"title_canon_sha256":"d9e5a53d2c11bde3b2d2a69413cf1ac69d0162bcccb207ba79a39c521adec540","abstract_canon_sha256":"24fc1a6ee328b52531211661847fce188d5f4da1af8b38b0419916dcc80a6d91"},"schema_version":"1.0"},"canonical_sha256":"71d9b25930579ef98497ac1b3269faed79fb83860f6fe23a1720b785220b571d","source":{"kind":"arxiv","id":"1911.06090","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.06090","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"1911.06090v2","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.06090","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"OHM3EWJQK6PP","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_16","alias_value":"OHM3EWJQK6PPTBEX","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_8","alias_value":"OHM3EWJQ","created_at":"2026-07-05T01:16:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:OHM3EWJQK6PPTBEXVQNTE2P25V","target":"record","payload":{"canonical_record":{"source":{"id":"1911.06090","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-11-14T13:43:05Z","cross_cats_sorted":[],"title_canon_sha256":"d9e5a53d2c11bde3b2d2a69413cf1ac69d0162bcccb207ba79a39c521adec540","abstract_canon_sha256":"24fc1a6ee328b52531211661847fce188d5f4da1af8b38b0419916dcc80a6d91"},"schema_version":"1.0"},"canonical_sha256":"71d9b25930579ef98497ac1b3269faed79fb83860f6fe23a1720b785220b571d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:16:41.959512Z","signature_b64":"aPXdpM06HGIVlPqHgFSfKTH51ujW940oTsIsVJlqzhl9X4dZgp525YrW3vj8hZ1Y+LqqFNlJNpnOhz9H6a5vDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"71d9b25930579ef98497ac1b3269faed79fb83860f6fe23a1720b785220b571d","last_reissued_at":"2026-07-05T01:16:41.959049Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:16:41.959049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1911.06090","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G/RwI+YtecNnC+WjFrCd/n0ZlzHtxdVRb92IFAr6ejP1QpLi/h3x+rhCByHGJl/UKp2arh2abvgulrt6+4+cCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:07:11.274650Z"},"content_sha256":"51cfcbab1112678422ed5356960e371bc7a18a60258e9769c2a605fcfb4264d9","schema_version":"1.0","event_id":"sha256:51cfcbab1112678422ed5356960e371bc7a18a60258e9769c2a605fcfb4264d9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:OHM3EWJQK6PPTBEXVQNTE2P25V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temporal X-ray Reconstruction using Temporal and Spectral Measurements at LCLS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.acc-ph","authors_text":"Alberto Andrea Lutman, Daniel Ratner, Florian Christie, Jacek Krzywinski, Juliane R\\\"onsch-Schulenburg, Mathias Vogt, Timothy John Maxwell, Vatsal A. Jhalani, Yuantao Ding, Zhirong Huang","submitted_at":"2019-11-14T13:43:05Z","abstract_excerpt":"Transverse deflecting structures (TDS) are widely used in accelerator physics to measure the longitudinal density of particle bunches. When used in combination with a dispersive section, the whole longitudinal phase space density can be imaged. At the Linac Coherent Light Source (LCLS), the installation of such a device downstream of the undulators enables the reconstruction of the X-ray temporal intensity profile by comparing longitudinal phase space distributions with lasing on and lasing off. However, the resolution of this TDS is limited to around 1 fs rms (root mean square), and therefore"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.06090","kind":"arxiv","version":2},"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/1911.06090/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":"2026-07-05T01:16:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LaJkvbr41MvkIP8/9D5AFwjln1cuImyAcorUAvfZcTT5mEcroMBHgNYmepZFfk46RGeN7KMWmdQ0E6a9XnP1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T12:07:11.275151Z"},"content_sha256":"f6c8d89f30a0efa4506a2d9d09f5ef7b07a245f396e7e1e8c8ecb684df79fec2","schema_version":"1.0","event_id":"sha256:f6c8d89f30a0efa4506a2d9d09f5ef7b07a245f396e7e1e8c8ecb684df79fec2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/bundle.json","state_url":"https://pith.science/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/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":"2026-08-20T12:07:11Z","links":{"resolver":"https://pith.science/pith/OHM3EWJQK6PPTBEXVQNTE2P25V","bundle":"https://pith.science/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/bundle.json","state":"https://pith.science/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OHM3EWJQK6PPTBEXVQNTE2P25V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OHM3EWJQK6PPTBEXVQNTE2P25V","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":"24fc1a6ee328b52531211661847fce188d5f4da1af8b38b0419916dcc80a6d91","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-11-14T13:43:05Z","title_canon_sha256":"d9e5a53d2c11bde3b2d2a69413cf1ac69d0162bcccb207ba79a39c521adec540"},"schema_version":"1.0","source":{"id":"1911.06090","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.06090","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"arxiv_version","alias_value":"1911.06090v2","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.06090","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_12","alias_value":"OHM3EWJQK6PP","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_16","alias_value":"OHM3EWJQK6PPTBEX","created_at":"2026-07-05T01:16:41Z"},{"alias_kind":"pith_short_8","alias_value":"OHM3EWJQ","created_at":"2026-07-05T01:16:41Z"}],"graph_snapshots":[{"event_id":"sha256:f6c8d89f30a0efa4506a2d9d09f5ef7b07a245f396e7e1e8c8ecb684df79fec2","target":"graph","created_at":"2026-07-05T01:16:41Z","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/1911.06090/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Transverse deflecting structures (TDS) are widely used in accelerator physics to measure the longitudinal density of particle bunches. When used in combination with a dispersive section, the whole longitudinal phase space density can be imaged. At the Linac Coherent Light Source (LCLS), the installation of such a device downstream of the undulators enables the reconstruction of the X-ray temporal intensity profile by comparing longitudinal phase space distributions with lasing on and lasing off. However, the resolution of this TDS is limited to around 1 fs rms (root mean square), and therefore","authors_text":"Alberto Andrea Lutman, Daniel Ratner, Florian Christie, Jacek Krzywinski, Juliane R\\\"onsch-Schulenburg, Mathias Vogt, Timothy John Maxwell, Vatsal A. Jhalani, Yuantao Ding, Zhirong Huang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-11-14T13:43:05Z","title":"Temporal X-ray Reconstruction using Temporal and Spectral Measurements at LCLS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.06090","kind":"arxiv","version":2},"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":"sha256:51cfcbab1112678422ed5356960e371bc7a18a60258e9769c2a605fcfb4264d9","target":"record","created_at":"2026-07-05T01:16:41Z","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":"24fc1a6ee328b52531211661847fce188d5f4da1af8b38b0419916dcc80a6d91","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.acc-ph","submitted_at":"2019-11-14T13:43:05Z","title_canon_sha256":"d9e5a53d2c11bde3b2d2a69413cf1ac69d0162bcccb207ba79a39c521adec540"},"schema_version":"1.0","source":{"id":"1911.06090","kind":"arxiv","version":2}},"canonical_sha256":"71d9b25930579ef98497ac1b3269faed79fb83860f6fe23a1720b785220b571d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"71d9b25930579ef98497ac1b3269faed79fb83860f6fe23a1720b785220b571d","first_computed_at":"2026-07-05T01:16:41.959049Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:16:41.959049Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aPXdpM06HGIVlPqHgFSfKTH51ujW940oTsIsVJlqzhl9X4dZgp525YrW3vj8hZ1Y+LqqFNlJNpnOhz9H6a5vDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:16:41.959512Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.06090","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51cfcbab1112678422ed5356960e371bc7a18a60258e9769c2a605fcfb4264d9","sha256:f6c8d89f30a0efa4506a2d9d09f5ef7b07a245f396e7e1e8c8ecb684df79fec2"],"state_sha256":"38e8c4b349de00040098ac5e37b8ed53c2e4327e64841960fafb1fc9f4bf3193"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pjEI7Alg09yrINY1ZsSvy++4g+zj3kqRtsML/lL8Dhk+C7xFU+md7sHBkR0TP7TqMpQ8R8n+/pfClOXIJNnxBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T12:07:11.278451Z","bundle_sha256":"d50c47449ae2247367dbf6771d9067a786554cc30dc968fb3690198cc778fc11"}}