{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:S7ONREJXRG4MLZJRD3YBELVQST","short_pith_number":"pith:S7ONREJX","canonical_record":{"source":{"id":"1902.09867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-26T11:23:21Z","cross_cats_sorted":[],"title_canon_sha256":"e9ef03923fd0b5b66abad531286edb4d424cd1101a8a809f616359acf8fc4e57","abstract_canon_sha256":"2f66113efd7477a0c149a13c317002330609a63111224de012420ab424343566"},"schema_version":"1.0"},"canonical_sha256":"97dcd8913789b8c5e5311ef0122eb094e771d42ac772000485650a50e8fc7e3b","source":{"kind":"arxiv","id":"1902.09867","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09867","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09867v1","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09867","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"pith_short_12","alias_value":"S7ONREJXRG4M","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"S7ONREJXRG4MLZJR","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"S7ONREJX","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:S7ONREJXRG4MLZJRD3YBELVQST","target":"record","payload":{"canonical_record":{"source":{"id":"1902.09867","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-26T11:23:21Z","cross_cats_sorted":[],"title_canon_sha256":"e9ef03923fd0b5b66abad531286edb4d424cd1101a8a809f616359acf8fc4e57","abstract_canon_sha256":"2f66113efd7477a0c149a13c317002330609a63111224de012420ab424343566"},"schema_version":"1.0"},"canonical_sha256":"97dcd8913789b8c5e5311ef0122eb094e771d42ac772000485650a50e8fc7e3b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:35.126510Z","signature_b64":"dmvxzq0I5cTNIOtnFEWcGzgAu/7e93YGJesd7LPe3W5gSsbAd+/ghVnGBzMGM/tkFDfhEi9r4H2vGsGeGYe+AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97dcd8913789b8c5e5311ef0122eb094e771d42ac772000485650a50e8fc7e3b","last_reissued_at":"2026-05-17T23:52:35.126115Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:35.126115Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.09867","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":"2026-05-17T23:52:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G8VgUagnJ3Xg4vDy9Uq3TdnuxKcbm91chNN2SEW9ZRrUqy94Nh83rQITMc68KW/fitVlkrJapVFP5CeX7KGgAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:42:41.183054Z"},"content_sha256":"1c4c983217ee8e0428faf9ca02f7cf7cd462ac33978a58541f872fc70a5b846f","schema_version":"1.0","event_id":"sha256:1c4c983217ee8e0428faf9ca02f7cf7cd462ac33978a58541f872fc70a5b846f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:S7ONREJXRG4MLZJRD3YBELVQST","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vectorial optical field reconstruction by attosecond spectral interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"A. Comby, C. D. Schroter, D. Hoff, F. Calegari, F. Frassetto, G. G. Paulus, G. Sansone, H. Ahmadi, J. Ullrich, L. Poletto, M. Nisoli, M. Reduzzi, P. Carpeggiani, R. Moshammer, S. Kuhn","submitted_at":"2019-02-26T11:23:21Z","abstract_excerpt":"An electrical pulse E(t) is completely defined by its time-dependent amplitude and polarisation direction. For optical pulses the manipulation and characterisation of the light polarisation state is fundamental due to its relevance in several scientific and technological fields. In this work we demonstrate the complete temporal reconstruction of the electric field of few-cycle pulses with a complex time-dependent polarisation. Our experimental approach is based on extreme ultraviolet interferometry with isolated attosecond pulses and on the demonstration that the motion of an attosecond electr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09867","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":"2026-05-17T23:52:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+5J6BUlyuHiIBVsB+EfQ/H42rfbujB7XKezudQ+VWqc05niW8Z9AhljeiVGK1BW/C3sjnAZM42EQvu62xZ5nAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T08:42:41.183420Z"},"content_sha256":"67ca03b38af89a2e3f5c6edd5c83d9aefff5ee336a8a6b9fc1201c38cda82b9e","schema_version":"1.0","event_id":"sha256:67ca03b38af89a2e3f5c6edd5c83d9aefff5ee336a8a6b9fc1201c38cda82b9e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S7ONREJXRG4MLZJRD3YBELVQST/bundle.json","state_url":"https://pith.science/pith/S7ONREJXRG4MLZJRD3YBELVQST/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S7ONREJXRG4MLZJRD3YBELVQST/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":"2026-05-28T08:42:41Z","links":{"resolver":"https://pith.science/pith/S7ONREJXRG4MLZJRD3YBELVQST","bundle":"https://pith.science/pith/S7ONREJXRG4MLZJRD3YBELVQST/bundle.json","state":"https://pith.science/pith/S7ONREJXRG4MLZJRD3YBELVQST/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S7ONREJXRG4MLZJRD3YBELVQST/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:S7ONREJXRG4MLZJRD3YBELVQST","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":"2f66113efd7477a0c149a13c317002330609a63111224de012420ab424343566","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-26T11:23:21Z","title_canon_sha256":"e9ef03923fd0b5b66abad531286edb4d424cd1101a8a809f616359acf8fc4e57"},"schema_version":"1.0","source":{"id":"1902.09867","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.09867","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"arxiv_version","alias_value":"1902.09867v1","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.09867","created_at":"2026-05-17T23:52:35Z"},{"alias_kind":"pith_short_12","alias_value":"S7ONREJXRG4M","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"S7ONREJXRG4MLZJR","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"S7ONREJX","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:67ca03b38af89a2e3f5c6edd5c83d9aefff5ee336a8a6b9fc1201c38cda82b9e","target":"graph","created_at":"2026-05-17T23:52:35Z","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":"An electrical pulse E(t) is completely defined by its time-dependent amplitude and polarisation direction. For optical pulses the manipulation and characterisation of the light polarisation state is fundamental due to its relevance in several scientific and technological fields. In this work we demonstrate the complete temporal reconstruction of the electric field of few-cycle pulses with a complex time-dependent polarisation. Our experimental approach is based on extreme ultraviolet interferometry with isolated attosecond pulses and on the demonstration that the motion of an attosecond electr","authors_text":"A. Comby, C. D. Schroter, D. Hoff, F. Calegari, F. Frassetto, G. G. Paulus, G. Sansone, H. Ahmadi, J. Ullrich, L. Poletto, M. Nisoli, M. Reduzzi, P. Carpeggiani, R. Moshammer, S. Kuhn","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-26T11:23:21Z","title":"Vectorial optical field reconstruction by attosecond spectral interferometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.09867","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":"sha256:1c4c983217ee8e0428faf9ca02f7cf7cd462ac33978a58541f872fc70a5b846f","target":"record","created_at":"2026-05-17T23:52:35Z","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":"2f66113efd7477a0c149a13c317002330609a63111224de012420ab424343566","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2019-02-26T11:23:21Z","title_canon_sha256":"e9ef03923fd0b5b66abad531286edb4d424cd1101a8a809f616359acf8fc4e57"},"schema_version":"1.0","source":{"id":"1902.09867","kind":"arxiv","version":1}},"canonical_sha256":"97dcd8913789b8c5e5311ef0122eb094e771d42ac772000485650a50e8fc7e3b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97dcd8913789b8c5e5311ef0122eb094e771d42ac772000485650a50e8fc7e3b","first_computed_at":"2026-05-17T23:52:35.126115Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:35.126115Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dmvxzq0I5cTNIOtnFEWcGzgAu/7e93YGJesd7LPe3W5gSsbAd+/ghVnGBzMGM/tkFDfhEi9r4H2vGsGeGYe+AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:35.126510Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.09867","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c4c983217ee8e0428faf9ca02f7cf7cd462ac33978a58541f872fc70a5b846f","sha256:67ca03b38af89a2e3f5c6edd5c83d9aefff5ee336a8a6b9fc1201c38cda82b9e"],"state_sha256":"9c9ad45438b93d34dc71eb7e894537b7df053960d857b112d18227440205acfe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZpceS2N3gqlYLlBrldSvcA18O1Nelx5lMihlUSV0m8dP+XLUiTWy1k5wLu7mrNqjRAjyUqX/ze7P3CEjzuZ7Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T08:42:41.185403Z","bundle_sha256":"4890a8f84ee4179d854a953a9cfde977f36241e9ea5f90825e9c03cbe477ef46"}}