{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:VMPYXXLDVLZ3AN5CWWFGSAWISI","short_pith_number":"pith:VMPYXXLD","canonical_record":{"source":{"id":"1810.11097","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-25T20:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"936ca88a563ca1f567a88fb6cbec36d1d9eb5e2d8dc567ba3fc289c95aeb3c09","abstract_canon_sha256":"f79387140fd73b6dbb29e7cddc25d61d221ae597cb8fce75fb8f490028e4949a"},"schema_version":"1.0"},"canonical_sha256":"ab1f8bdd63aaf3b037a2b58a6902c8920c274ebd143b8e03df60186c229cc03e","source":{"kind":"arxiv","id":"1810.11097","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11097","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11097v1","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11097","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"pith_short_12","alias_value":"VMPYXXLDVLZ3","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VMPYXXLDVLZ3AN5C","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VMPYXXLD","created_at":"2026-05-18T12:32:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:VMPYXXLDVLZ3AN5CWWFGSAWISI","target":"record","payload":{"canonical_record":{"source":{"id":"1810.11097","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-25T20:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"936ca88a563ca1f567a88fb6cbec36d1d9eb5e2d8dc567ba3fc289c95aeb3c09","abstract_canon_sha256":"f79387140fd73b6dbb29e7cddc25d61d221ae597cb8fce75fb8f490028e4949a"},"schema_version":"1.0"},"canonical_sha256":"ab1f8bdd63aaf3b037a2b58a6902c8920c274ebd143b8e03df60186c229cc03e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:34.231176Z","signature_b64":"XT94gTX3WOD92iq2p0vxqF6E/xIaeDr3syONa7cFTtdV+oqUhJRY8EJe5H0P9Jc0jEEMdpU26KlK22IOYhe5Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ab1f8bdd63aaf3b037a2b58a6902c8920c274ebd143b8e03df60186c229cc03e","last_reissued_at":"2026-05-17T23:40:34.230755Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:34.230755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.11097","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":"2026-05-17T23:40:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"662VyVoH2cQ5bRCKN25UGFYpqMtYJ+9PPHxu8NHCzkNXZaHeeXhewA4y/lNQB6UJaINwCw8rkTPWyc9zlmGJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:51:43.691588Z"},"content_sha256":"83cccd5361ed79f41b9e6431abc9bad99e985c6e0c2a3e68bd18d4dbc7d5a25a","schema_version":"1.0","event_id":"sha256:83cccd5361ed79f41b9e6431abc9bad99e985c6e0c2a3e68bd18d4dbc7d5a25a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:VMPYXXLDVLZ3AN5CWWFGSAWISI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extreme Ultraviolet Superfluorescence in Xenon and Krypton","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"A. Benediktovitch, A. Rudenko, A. S\\'anchez-Gonz\\'alez, B. Erk, C. Bomme, C. Weninger, D. Rolles, F. Penent, H. Bekker, J. Palaudoux, J. R. Crespo L\\'opez-Urrutia, L. Mercadier, M. A. Blessenohl, M. A. Khalal, N. Rohringer, P. Lablanquie, R. Boll, R. Steinbr\\\"ugge, S. Bernitt, S. Dobrodey, V. P. Majety, Z. Yin","submitted_at":"2018-10-25T20:31:55Z","abstract_excerpt":"We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a high-intensity free-electron laser pulse in a cell filled with Xe or Kr gas, the medium is quasi instantaneously population-inverted by inner-shell ionization on the giant resonance followed by Auger decay. On the timescale of 100 ps a macroscopic polarization builds up in the medium, resulting in superfluorescent emission of several Xe and Kr lines in the forward direction. As the number of emitters in the system is increased by either raising the pressur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11097","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":"2026-05-17T23:40:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"urpz1+rOY5aftKmqFI8NmInDH4oJuYaXxbESM2yXgv3NZPgQUUgFKC4yC7MvrGjOcuOqYjGVtZ+kkWTuI9BWBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:51:43.691936Z"},"content_sha256":"29e62f35b5c982bfe349f3ce1de8980b2541ad3471c8ed2614a117358250193a","schema_version":"1.0","event_id":"sha256:29e62f35b5c982bfe349f3ce1de8980b2541ad3471c8ed2614a117358250193a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/bundle.json","state_url":"https://pith.science/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/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":"2026-05-28T00:51:43Z","links":{"resolver":"https://pith.science/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI","bundle":"https://pith.science/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/bundle.json","state":"https://pith.science/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VMPYXXLDVLZ3AN5CWWFGSAWISI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:VMPYXXLDVLZ3AN5CWWFGSAWISI","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":"f79387140fd73b6dbb29e7cddc25d61d221ae597cb8fce75fb8f490028e4949a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-25T20:31:55Z","title_canon_sha256":"936ca88a563ca1f567a88fb6cbec36d1d9eb5e2d8dc567ba3fc289c95aeb3c09"},"schema_version":"1.0","source":{"id":"1810.11097","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.11097","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"arxiv_version","alias_value":"1810.11097v1","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.11097","created_at":"2026-05-17T23:40:34Z"},{"alias_kind":"pith_short_12","alias_value":"VMPYXXLDVLZ3","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_16","alias_value":"VMPYXXLDVLZ3AN5C","created_at":"2026-05-18T12:32:59Z"},{"alias_kind":"pith_short_8","alias_value":"VMPYXXLD","created_at":"2026-05-18T12:32:59Z"}],"graph_snapshots":[{"event_id":"sha256:29e62f35b5c982bfe349f3ce1de8980b2541ad3471c8ed2614a117358250193a","target":"graph","created_at":"2026-05-17T23:40:34Z","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":"We present a comprehensive experimental and theoretical study on superfluorescence in the extreme ultraviolet wavelength regime. Focusing a high-intensity free-electron laser pulse in a cell filled with Xe or Kr gas, the medium is quasi instantaneously population-inverted by inner-shell ionization on the giant resonance followed by Auger decay. On the timescale of 100 ps a macroscopic polarization builds up in the medium, resulting in superfluorescent emission of several Xe and Kr lines in the forward direction. As the number of emitters in the system is increased by either raising the pressur","authors_text":"A. Benediktovitch, A. Rudenko, A. S\\'anchez-Gonz\\'alez, B. Erk, C. Bomme, C. Weninger, D. Rolles, F. Penent, H. Bekker, J. Palaudoux, J. R. Crespo L\\'opez-Urrutia, L. Mercadier, M. A. Blessenohl, M. A. Khalal, N. Rohringer, P. Lablanquie, R. Boll, R. Steinbr\\\"ugge, S. Bernitt, S. Dobrodey, V. P. Majety, Z. Yin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-25T20:31:55Z","title":"Extreme Ultraviolet Superfluorescence in Xenon and Krypton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.11097","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":"sha256:83cccd5361ed79f41b9e6431abc9bad99e985c6e0c2a3e68bd18d4dbc7d5a25a","target":"record","created_at":"2026-05-17T23:40:34Z","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":"f79387140fd73b6dbb29e7cddc25d61d221ae597cb8fce75fb8f490028e4949a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-10-25T20:31:55Z","title_canon_sha256":"936ca88a563ca1f567a88fb6cbec36d1d9eb5e2d8dc567ba3fc289c95aeb3c09"},"schema_version":"1.0","source":{"id":"1810.11097","kind":"arxiv","version":1}},"canonical_sha256":"ab1f8bdd63aaf3b037a2b58a6902c8920c274ebd143b8e03df60186c229cc03e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ab1f8bdd63aaf3b037a2b58a6902c8920c274ebd143b8e03df60186c229cc03e","first_computed_at":"2026-05-17T23:40:34.230755Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:34.230755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XT94gTX3WOD92iq2p0vxqF6E/xIaeDr3syONa7cFTtdV+oqUhJRY8EJe5H0P9Jc0jEEMdpU26KlK22IOYhe5Aw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:34.231176Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.11097","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:83cccd5361ed79f41b9e6431abc9bad99e985c6e0c2a3e68bd18d4dbc7d5a25a","sha256:29e62f35b5c982bfe349f3ce1de8980b2541ad3471c8ed2614a117358250193a"],"state_sha256":"6489b38e0c999c9c21e398a437a189fcf4dde4c0574903081ec82e8406e88703"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8dh5CcSw4T/eRMYHG9cE9W8pbT3SkSA0QrzSmclYFjXlOvZHl+bZV4/RXNqQXrn/1u+0ewfnrws61er77SwcCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:51:43.693921Z","bundle_sha256":"bf262945a8aa19034bc1519a5eb2d67e26238cc0712cd1b55f2b3499d8fb9a40"}}