{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:7Z5FF3RGCECWHOS2MXCIEG76CT","short_pith_number":"pith:7Z5FF3RG","canonical_record":{"source":{"id":"physics/0005079","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-05-29T16:24:24Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"f4ec1f9692b892ee35ad969967f8c5fb7e1a95783a06cb797111d6edbb231e11","abstract_canon_sha256":"3e4f879d222d59f79ca201830cc4a28f7cebc9241f3409a7531eba2e2707c7ba"},"schema_version":"1.0"},"canonical_sha256":"fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784","source":{"kind":"arxiv","id":"physics/0005079","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0005079","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0005079v1","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0005079","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_12","alias_value":"7Z5FF3RGCECW","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_16","alias_value":"7Z5FF3RGCECWHOS2","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_8","alias_value":"7Z5FF3RG","created_at":"2026-07-04T14:43:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:7Z5FF3RGCECWHOS2MXCIEG76CT","target":"record","payload":{"canonical_record":{"source":{"id":"physics/0005079","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-05-29T16:24:24Z","cross_cats_sorted":["nlin.CD"],"title_canon_sha256":"f4ec1f9692b892ee35ad969967f8c5fb7e1a95783a06cb797111d6edbb231e11","abstract_canon_sha256":"3e4f879d222d59f79ca201830cc4a28f7cebc9241f3409a7531eba2e2707c7ba"},"schema_version":"1.0"},"canonical_sha256":"fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:43:15.465752Z","signature_b64":"iUm5X3xujx+7niNnltZxkWu4po78AIrfb3s76cvPCMmII+oKPpB4YQnV1KvryN/hZmvBWOv0GTNIi8mg1bKiAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784","last_reissued_at":"2026-07-04T14:43:15.465422Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:43:15.465422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"physics/0005079","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":"2026-07-04T14:43:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZBD3/uti6/9JN6A1lpC89YAljEbtN60pfUSWmVWQs0bXk0DrnKokvkFyqCG4gx3lapHpdxd/C/3RuKB/oP2hAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T00:55:22.302828Z"},"content_sha256":"433d2bad6e1653387fc52665b86166363562bfcaa085bb745188913b450229fd","schema_version":"1.0","event_id":"sha256:433d2bad6e1653387fc52665b86166363562bfcaa085bb745188913b450229fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:7Z5FF3RGCECWHOS2MXCIEG76CT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Classical double ionization of atoms in strong fields","license":"","headline":"","cross_cats":["nlin.CD"],"primary_cat":"physics.atom-ph","authors_text":"Bruno Eckhardt, Krzysztof Sacha","submitted_at":"2000-05-29T16:24:24Z","abstract_excerpt":"Recent high resolution measurements of the momenta of two electrons emitted from Argon atoms in a strong laser field show a strong preference for the outgoing electrons to have similar momenta and to be ejected in the same direction along the field. We discuss the final stages of this process in a classical model in the spirit of Wanniers approach to double ionization after electron impact. Starting from an intermediate state of high but negative energy the field opens up a channel through which both electrons can escape. Near the threshold for this process Coulomb repulsion favors an escape w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0005079","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/physics/0005079/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":"2026-07-04T14:43:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vPiyU7QYeblELC+KhJLrMbltKNmP3ts/dyHFWYJ69fahW6GTOrAwqvCsUC73UxPz6l968AHaB3XI2/lG7BcyAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T00:55:22.303224Z"},"content_sha256":"c5d25335e31b945044c87e8ea4e9248153610812c489e76d6bc2ce27634f196e","schema_version":"1.0","event_id":"sha256:c5d25335e31b945044c87e8ea4e9248153610812c489e76d6bc2ce27634f196e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/bundle.json","state_url":"https://pith.science/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/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":"2026-07-11T00:55:22Z","links":{"resolver":"https://pith.science/pith/7Z5FF3RGCECWHOS2MXCIEG76CT","bundle":"https://pith.science/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/bundle.json","state":"https://pith.science/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7Z5FF3RGCECWHOS2MXCIEG76CT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:7Z5FF3RGCECWHOS2MXCIEG76CT","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":"3e4f879d222d59f79ca201830cc4a28f7cebc9241f3409a7531eba2e2707c7ba","cross_cats_sorted":["nlin.CD"],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-05-29T16:24:24Z","title_canon_sha256":"f4ec1f9692b892ee35ad969967f8c5fb7e1a95783a06cb797111d6edbb231e11"},"schema_version":"1.0","source":{"id":"physics/0005079","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"physics/0005079","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"arxiv_version","alias_value":"physics/0005079v1","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0005079","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_12","alias_value":"7Z5FF3RGCECW","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_16","alias_value":"7Z5FF3RGCECWHOS2","created_at":"2026-07-04T14:43:15Z"},{"alias_kind":"pith_short_8","alias_value":"7Z5FF3RG","created_at":"2026-07-04T14:43:15Z"}],"graph_snapshots":[{"event_id":"sha256:c5d25335e31b945044c87e8ea4e9248153610812c489e76d6bc2ce27634f196e","target":"graph","created_at":"2026-07-04T14:43:15Z","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/physics/0005079/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent high resolution measurements of the momenta of two electrons emitted from Argon atoms in a strong laser field show a strong preference for the outgoing electrons to have similar momenta and to be ejected in the same direction along the field. We discuss the final stages of this process in a classical model in the spirit of Wanniers approach to double ionization after electron impact. Starting from an intermediate state of high but negative energy the field opens up a channel through which both electrons can escape. Near the threshold for this process Coulomb repulsion favors an escape w","authors_text":"Bruno Eckhardt, Krzysztof Sacha","cross_cats":["nlin.CD"],"headline":"","license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-05-29T16:24:24Z","title":"Classical double ionization of atoms in strong fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0005079","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":"sha256:433d2bad6e1653387fc52665b86166363562bfcaa085bb745188913b450229fd","target":"record","created_at":"2026-07-04T14:43:15Z","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":"3e4f879d222d59f79ca201830cc4a28f7cebc9241f3409a7531eba2e2707c7ba","cross_cats_sorted":["nlin.CD"],"license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-05-29T16:24:24Z","title_canon_sha256":"f4ec1f9692b892ee35ad969967f8c5fb7e1a95783a06cb797111d6edbb231e11"},"schema_version":"1.0","source":{"id":"physics/0005079","kind":"arxiv","version":1}},"canonical_sha256":"fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fe7a52ee26110563ba5a65c4821bfe14c8fe2dc5c86aadc8737126907bf25784","first_computed_at":"2026-07-04T14:43:15.465422Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:43:15.465422Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iUm5X3xujx+7niNnltZxkWu4po78AIrfb3s76cvPCMmII+oKPpB4YQnV1KvryN/hZmvBWOv0GTNIi8mg1bKiAA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:43:15.465752Z","signed_message":"canonical_sha256_bytes"},"source_id":"physics/0005079","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:433d2bad6e1653387fc52665b86166363562bfcaa085bb745188913b450229fd","sha256:c5d25335e31b945044c87e8ea4e9248153610812c489e76d6bc2ce27634f196e"],"state_sha256":"89886417b9d7dfba0822ec70f6476549060418dbbfaa0949443c54d34345e0bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sp9ijqtC3E5rXDjTFw4rMieG3xV8mRNUdviob6OZCM9/pzGV+S4ifss+9K4+GIAc/RM6JvVp2i5TfW9qLfCBAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T00:55:22.306445Z","bundle_sha256":"6f474e42f4617242533d2c908d658e06d2d3ff2cee058659b34c52562fa6e53a"}}