{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:WQNLKKEICNWIVCCW226R4CQEFJ","short_pith_number":"pith:WQNLKKEI","canonical_record":{"source":{"id":"1502.00614","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-02-02T20:39:24Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"cbde7a3afe505ddb0f1c51e1f7ba1d8ca8180fa4c99548ade17b129c0c170bec","abstract_canon_sha256":"6d9895e46ea1b0d387b41eb883e0142d49726860b37f7890d0ca9afa8acc3338"},"schema_version":"1.0"},"canonical_sha256":"b41ab52888136c8a8856d6bd1e0a042a40ad33b4a2802cd2db50ea1616c97b07","source":{"kind":"arxiv","id":"1502.00614","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00614","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00614v2","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00614","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"pith_short_12","alias_value":"WQNLKKEICNWI","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WQNLKKEICNWIVCCW","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WQNLKKEI","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:WQNLKKEICNWIVCCW226R4CQEFJ","target":"record","payload":{"canonical_record":{"source":{"id":"1502.00614","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-02-02T20:39:24Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"cbde7a3afe505ddb0f1c51e1f7ba1d8ca8180fa4c99548ade17b129c0c170bec","abstract_canon_sha256":"6d9895e46ea1b0d387b41eb883e0142d49726860b37f7890d0ca9afa8acc3338"},"schema_version":"1.0"},"canonical_sha256":"b41ab52888136c8a8856d6bd1e0a042a40ad33b4a2802cd2db50ea1616c97b07","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:20.122531Z","signature_b64":"8smX5vKAIYucVEFxMt45784VrEHJ0pvzAzoe7ZdIyeIy+ohsR8nCRtxZXgL9oMzfAAqM0HXvRIRUyqTMG5nECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b41ab52888136c8a8856d6bd1e0a042a40ad33b4a2802cd2db50ea1616c97b07","last_reissued_at":"2026-05-18T01:36:20.121948Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:20.121948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.00614","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":"2026-05-18T01:36:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sWepM1PdjlkGlDjxqXTqdal378Rsi4+hZm3H40l0ngntHc8IEj2sAF5Un9jl5VS2+9VFMZKqKr2FNjCu1KrLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:14:36.358026Z"},"content_sha256":"fc10f7297649c21bca44b06391c12571e6fed7d81e4a9a11a629ed769e020178","schema_version":"1.0","event_id":"sha256:fc10f7297649c21bca44b06391c12571e6fed7d81e4a9a11a629ed769e020178"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:WQNLKKEICNWIVCCW226R4CQEFJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-Color Strong-Field Photoelectron Spectroscopy and the Phase of the Phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"D. Bauer, J. Tiggesb\\\"aumker, K.-H. Meiwes-Broer, M. Arbeiter, S. Skruszewicz, Th. Fennel","submitted_at":"2015-02-02T20:39:24Z","abstract_excerpt":"The presence of a weak second-harmonic field in an intense-laser ionization experiment affects the momentum-resolved electron yield, depending on the relative phase between the $\\omega$ and the $2\\omega$ component. The proposed two-color 'phase-of-the-phase spectroscopy' quantifies for each final electron momentum a relative-phase contrast (RPC) and a 'phase of the phase' (PP), describing how much and with which phase lag, respectively, the yield changes as function of relative phase. Experimental results for RPC and PP spectra for rare gas atoms and CO$_2$ are presented. The spectra demonstra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00614","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":""},"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":"2026-05-18T01:36:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UC1B8O1gu3hYR3w5bsyMurg7PosgywPikxiGU2kd2JdXmhcLJ4TkLNsBlJLviOjFn30YXuwjucJr9FQMvicRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:14:36.358389Z"},"content_sha256":"e002dba08278db85fa3a26cf22fd294282385abc57335d151c20137768e43738","schema_version":"1.0","event_id":"sha256:e002dba08278db85fa3a26cf22fd294282385abc57335d151c20137768e43738"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WQNLKKEICNWIVCCW226R4CQEFJ/bundle.json","state_url":"https://pith.science/pith/WQNLKKEICNWIVCCW226R4CQEFJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WQNLKKEICNWIVCCW226R4CQEFJ/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":"2026-05-31T16:14:36Z","links":{"resolver":"https://pith.science/pith/WQNLKKEICNWIVCCW226R4CQEFJ","bundle":"https://pith.science/pith/WQNLKKEICNWIVCCW226R4CQEFJ/bundle.json","state":"https://pith.science/pith/WQNLKKEICNWIVCCW226R4CQEFJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WQNLKKEICNWIVCCW226R4CQEFJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:WQNLKKEICNWIVCCW226R4CQEFJ","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":"6d9895e46ea1b0d387b41eb883e0142d49726860b37f7890d0ca9afa8acc3338","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-02-02T20:39:24Z","title_canon_sha256":"cbde7a3afe505ddb0f1c51e1f7ba1d8ca8180fa4c99548ade17b129c0c170bec"},"schema_version":"1.0","source":{"id":"1502.00614","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00614","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00614v2","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00614","created_at":"2026-05-18T01:36:20Z"},{"alias_kind":"pith_short_12","alias_value":"WQNLKKEICNWI","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"WQNLKKEICNWIVCCW","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"WQNLKKEI","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:e002dba08278db85fa3a26cf22fd294282385abc57335d151c20137768e43738","target":"graph","created_at":"2026-05-18T01:36:20Z","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 presence of a weak second-harmonic field in an intense-laser ionization experiment affects the momentum-resolved electron yield, depending on the relative phase between the $\\omega$ and the $2\\omega$ component. The proposed two-color 'phase-of-the-phase spectroscopy' quantifies for each final electron momentum a relative-phase contrast (RPC) and a 'phase of the phase' (PP), describing how much and with which phase lag, respectively, the yield changes as function of relative phase. Experimental results for RPC and PP spectra for rare gas atoms and CO$_2$ are presented. The spectra demonstra","authors_text":"D. Bauer, J. Tiggesb\\\"aumker, K.-H. Meiwes-Broer, M. Arbeiter, S. Skruszewicz, Th. Fennel","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-02-02T20:39:24Z","title":"Two-Color Strong-Field Photoelectron Spectroscopy and the Phase of the Phase"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00614","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:fc10f7297649c21bca44b06391c12571e6fed7d81e4a9a11a629ed769e020178","target":"record","created_at":"2026-05-18T01:36:20Z","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":"6d9895e46ea1b0d387b41eb883e0142d49726860b37f7890d0ca9afa8acc3338","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2015-02-02T20:39:24Z","title_canon_sha256":"cbde7a3afe505ddb0f1c51e1f7ba1d8ca8180fa4c99548ade17b129c0c170bec"},"schema_version":"1.0","source":{"id":"1502.00614","kind":"arxiv","version":2}},"canonical_sha256":"b41ab52888136c8a8856d6bd1e0a042a40ad33b4a2802cd2db50ea1616c97b07","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b41ab52888136c8a8856d6bd1e0a042a40ad33b4a2802cd2db50ea1616c97b07","first_computed_at":"2026-05-18T01:36:20.121948Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:20.121948Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8smX5vKAIYucVEFxMt45784VrEHJ0pvzAzoe7ZdIyeIy+ohsR8nCRtxZXgL9oMzfAAqM0HXvRIRUyqTMG5nECg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:20.122531Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.00614","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc10f7297649c21bca44b06391c12571e6fed7d81e4a9a11a629ed769e020178","sha256:e002dba08278db85fa3a26cf22fd294282385abc57335d151c20137768e43738"],"state_sha256":"aee5b852c3ed377c1bade453d7376726077c31b97c6419839b1915c6c10bcbed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wLXc2NKPzQ3iSlEaNVpvHrGoZXS+Tu9k8SpNL+CSY2XP9YMK89yTJho+XWSyHjcDhzoaRl2+ElTkVYPnusAxBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T16:14:36.360536Z","bundle_sha256":"961c9429cccad42032005fbb93675b59771aeaaa1a9c0a474d5f724c08053757"}}