{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7NIYSR22BBUILDZWCOPZOO26YO","short_pith_number":"pith:7NIYSR22","canonical_record":{"source":{"id":"1503.08308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-28T14:31:56Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3cfd744b5d8e37ebc7775925678f439691df1324229127ccb8e6666a2822ae79","abstract_canon_sha256":"e836085d539b803826c4964a6b934981fa3f470be2b4492aba62f9d8274bc0dd"},"schema_version":"1.0"},"canonical_sha256":"fb5189475a0868858f36139f973b5ec38521fe3e0b9cdc550afdf442694e9cc1","source":{"kind":"arxiv","id":"1503.08308","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.08308","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1503.08308v1","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.08308","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"7NIYSR22BBUI","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7NIYSR22BBUILDZW","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7NIYSR22","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7NIYSR22BBUILDZWCOPZOO26YO","target":"record","payload":{"canonical_record":{"source":{"id":"1503.08308","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-28T14:31:56Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"3cfd744b5d8e37ebc7775925678f439691df1324229127ccb8e6666a2822ae79","abstract_canon_sha256":"e836085d539b803826c4964a6b934981fa3f470be2b4492aba62f9d8274bc0dd"},"schema_version":"1.0"},"canonical_sha256":"fb5189475a0868858f36139f973b5ec38521fe3e0b9cdc550afdf442694e9cc1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:33.632674Z","signature_b64":"l8xqJOVDN4xv1q7aUPVNAju11bXx6nSsz1IZUl0wNxl0tAHZakmcbWKcLCPBnCFgC2y0O+mqbJFg+h6n7aK0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb5189475a0868858f36139f973b5ec38521fe3e0b9cdc550afdf442694e9cc1","last_reissued_at":"2026-05-18T01:36:33.632233Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:33.632233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.08308","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":"2026-05-18T01:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uyt+tbL4D5tV2QjmuHgMdUx8Jre9tBsqtznBg/w0ADkhbI53+8TsgC3w7lnuE2V4pAsNPZE2/G/Wq0SaVtnuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:04:24.543004Z"},"content_sha256":"3c985009cf5fa0f56cdee28a8c1319500499b963619fd7f679fdb078f3715ce5","schema_version":"1.0","event_id":"sha256:3c985009cf5fa0f56cdee28a8c1319500499b963619fd7f679fdb078f3715ce5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7NIYSR22BBUILDZWCOPZOO26YO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maximum information photoelectron metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"C. Lux, M. Wollenhaupt, P. Hockett, T. Baumert","submitted_at":"2015-03-28T14:31:56Z","abstract_excerpt":"Photoelectron interferograms, manifested in photoelectron angular distributions (PADs), are a high-information, coherent observable. In order to obtain the maximum information from angle-resolved photoionization experiments it is desirable to record the full, 3D, photoelectron momentum distribution. Here we apply tomographic reconstruction techniques to obtain such 3D distributions from multiphoton ionization of potassium atoms, and fully analyse the energy and angular content of the 3D data. The PADs obtained as a function of energy indicate good agreement with previous 2D data and detailed a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.08308","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":"2026-05-18T01:36:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XDyXAQpRX9vntHoZvyF+96BxOGuZiHUZ7k4iewYZYLGE7bHTrLv1grUViZlraBCUsVGJB6so8h7/jIc+i7klDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:04:24.543365Z"},"content_sha256":"da107d806587d0433d3abfa08f7ef96e5ec1e141501059c4c7749020e29cea44","schema_version":"1.0","event_id":"sha256:da107d806587d0433d3abfa08f7ef96e5ec1e141501059c4c7749020e29cea44"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7NIYSR22BBUILDZWCOPZOO26YO/bundle.json","state_url":"https://pith.science/pith/7NIYSR22BBUILDZWCOPZOO26YO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7NIYSR22BBUILDZWCOPZOO26YO/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":"2026-06-08T13:04:24Z","links":{"resolver":"https://pith.science/pith/7NIYSR22BBUILDZWCOPZOO26YO","bundle":"https://pith.science/pith/7NIYSR22BBUILDZWCOPZOO26YO/bundle.json","state":"https://pith.science/pith/7NIYSR22BBUILDZWCOPZOO26YO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7NIYSR22BBUILDZWCOPZOO26YO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7NIYSR22BBUILDZWCOPZOO26YO","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":"e836085d539b803826c4964a6b934981fa3f470be2b4492aba62f9d8274bc0dd","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-28T14:31:56Z","title_canon_sha256":"3cfd744b5d8e37ebc7775925678f439691df1324229127ccb8e6666a2822ae79"},"schema_version":"1.0","source":{"id":"1503.08308","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.08308","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"arxiv_version","alias_value":"1503.08308v1","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.08308","created_at":"2026-05-18T01:36:33Z"},{"alias_kind":"pith_short_12","alias_value":"7NIYSR22BBUI","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7NIYSR22BBUILDZW","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7NIYSR22","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:da107d806587d0433d3abfa08f7ef96e5ec1e141501059c4c7749020e29cea44","target":"graph","created_at":"2026-05-18T01:36:33Z","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":"Photoelectron interferograms, manifested in photoelectron angular distributions (PADs), are a high-information, coherent observable. In order to obtain the maximum information from angle-resolved photoionization experiments it is desirable to record the full, 3D, photoelectron momentum distribution. Here we apply tomographic reconstruction techniques to obtain such 3D distributions from multiphoton ionization of potassium atoms, and fully analyse the energy and angular content of the 3D data. The PADs obtained as a function of energy indicate good agreement with previous 2D data and detailed a","authors_text":"C. Lux, M. Wollenhaupt, P. Hockett, T. Baumert","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-28T14:31:56Z","title":"Maximum information photoelectron metrology"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.08308","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":"sha256:3c985009cf5fa0f56cdee28a8c1319500499b963619fd7f679fdb078f3715ce5","target":"record","created_at":"2026-05-18T01:36:33Z","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":"e836085d539b803826c4964a6b934981fa3f470be2b4492aba62f9d8274bc0dd","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-03-28T14:31:56Z","title_canon_sha256":"3cfd744b5d8e37ebc7775925678f439691df1324229127ccb8e6666a2822ae79"},"schema_version":"1.0","source":{"id":"1503.08308","kind":"arxiv","version":1}},"canonical_sha256":"fb5189475a0868858f36139f973b5ec38521fe3e0b9cdc550afdf442694e9cc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb5189475a0868858f36139f973b5ec38521fe3e0b9cdc550afdf442694e9cc1","first_computed_at":"2026-05-18T01:36:33.632233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:33.632233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"l8xqJOVDN4xv1q7aUPVNAju11bXx6nSsz1IZUl0wNxl0tAHZakmcbWKcLCPBnCFgC2y0O+mqbJFg+h6n7aK0Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:33.632674Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.08308","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c985009cf5fa0f56cdee28a8c1319500499b963619fd7f679fdb078f3715ce5","sha256:da107d806587d0433d3abfa08f7ef96e5ec1e141501059c4c7749020e29cea44"],"state_sha256":"23fc579297fd296dc9cf7baed8e4667604df32dbd2c1a6ede49173144cbf939e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fBnYyK6w/zMQG1bxD+XA8gPXzpLcpJsYZIUGNEblFyA00Kr7lxXKzqPNqmKVW27WqZ0ge4tis02If8DEfbwYDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T13:04:24.545923Z","bundle_sha256":"4b45f71d4745fdafc32a179cd9a15e97ca727588e43fcb928625370bd0826182"}}