{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2EQW3Q6XA3OURVBVW4UEQYCX2Z","short_pith_number":"pith:2EQW3Q6X","canonical_record":{"source":{"id":"1801.08404","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-25T14:07:54Z","cross_cats_sorted":[],"title_canon_sha256":"d85dea15edc1ea75c3c4ca2d31d90688f782799813e237adb2655d23ddf09575","abstract_canon_sha256":"2e3a766c41872019d742cc6364bd36925660bf924bfa198d88b5c35e14fb4f27"},"schema_version":"1.0"},"canonical_sha256":"d1216dc3d706dd48d435b728486057d654fd56dcf5f078a633655e914573957b","source":{"kind":"arxiv","id":"1801.08404","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08404","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08404v1","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08404","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"pith_short_12","alias_value":"2EQW3Q6XA3OU","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"2EQW3Q6XA3OURVBV","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"2EQW3Q6X","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2EQW3Q6XA3OURVBVW4UEQYCX2Z","target":"record","payload":{"canonical_record":{"source":{"id":"1801.08404","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-25T14:07:54Z","cross_cats_sorted":[],"title_canon_sha256":"d85dea15edc1ea75c3c4ca2d31d90688f782799813e237adb2655d23ddf09575","abstract_canon_sha256":"2e3a766c41872019d742cc6364bd36925660bf924bfa198d88b5c35e14fb4f27"},"schema_version":"1.0"},"canonical_sha256":"d1216dc3d706dd48d435b728486057d654fd56dcf5f078a633655e914573957b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:32.124020Z","signature_b64":"LALmwVX6OgMbcyv0/ORbsUeDTZ0KpSppokObjKNf5ymmxekhBGxyMusEta5fAlnhRBml0CwaH58K10mNKH/pCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1216dc3d706dd48d435b728486057d654fd56dcf5f078a633655e914573957b","last_reissued_at":"2026-05-18T00:05:32.123432Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:32.123432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.08404","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":"2026-05-18T00:05:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zDczpt83MAqJj5vQNizZb846UmX9qUebjxO36RuIR4zAu74XOdfNw/4Ez9chW30s3km5pEOAI83WpeZs7ibqAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:26:45.960880Z"},"content_sha256":"331a547f4bee97600034c094c0d61ad0a095466d93762cf31db4f5374221be87","schema_version":"1.0","event_id":"sha256:331a547f4bee97600034c094c0d61ad0a095466d93762cf31db4f5374221be87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2EQW3Q6XA3OURVBVW4UEQYCX2Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Observation of ultrafast solid-density plasma dynamics using femtosecond X-ray pulses from a free-electron laser","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Alejandro Laso Garcia, Alexander Pelka, Arthur Erbe, Christian Gutt, Christian R\\\"odel, Emma E. McBride, Eric Galtier, Hae Ja Lee, Inhyuk Nam, Irene Prencipe, Josefine Metzkes, Karl Zeil, Malte Zacharias, Marco Garten, Martin Rehwald, Melanie R\\\"odel, Michael Bussmann, Motoaki Nakatsutsumi, Nicholas J. Hartley, Siegfried Glenzer, Thomas E. Cowan, Thomas Kluge, Tommy Sch\\\"onherr, Ulrich Schramm, Uwe H\\\"ubner, Yordan M. Georgiev","submitted_at":"2018-01-25T14:07:54Z","abstract_excerpt":"The complex physics of the interaction between short pulse high intensity lasers and solids is so far hardly accessible by experiments. As a result of missing experimental capabilities to probe the complex electron dynamics and competing instabilities, this impedes the development of compact laser-based next generation secondary radiation sources, e.g. for tumor therapy [Bulanov2002,ledingham2007], laboratory-astrophysics [Remington1999,Bulanov2015], and fusion [Tabak2014]. At present, the fundamental plasma dynamics that occur at the nanometer and femtosecond scales during the laser-solid int"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08404","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":"2026-05-18T00:05:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZU8W+oCFWMhR7dNSX7ELSo6rJShTv+jupkQm+9Vok+1C2ZSLr6KDUrAi61p9rVjbGSDXQjEownFdI3K2Iqq5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T22:26:45.961512Z"},"content_sha256":"0944bda8f8d21708850d548379c4dc0859854ca2b126d05e1166e1f3c577a1db","schema_version":"1.0","event_id":"sha256:0944bda8f8d21708850d548379c4dc0859854ca2b126d05e1166e1f3c577a1db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/bundle.json","state_url":"https://pith.science/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/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":"2026-05-25T22:26:45Z","links":{"resolver":"https://pith.science/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z","bundle":"https://pith.science/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/bundle.json","state":"https://pith.science/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2EQW3Q6XA3OURVBVW4UEQYCX2Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2EQW3Q6XA3OURVBVW4UEQYCX2Z","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":"2e3a766c41872019d742cc6364bd36925660bf924bfa198d88b5c35e14fb4f27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-25T14:07:54Z","title_canon_sha256":"d85dea15edc1ea75c3c4ca2d31d90688f782799813e237adb2655d23ddf09575"},"schema_version":"1.0","source":{"id":"1801.08404","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.08404","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"arxiv_version","alias_value":"1801.08404v1","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.08404","created_at":"2026-05-18T00:05:32Z"},{"alias_kind":"pith_short_12","alias_value":"2EQW3Q6XA3OU","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"2EQW3Q6XA3OURVBV","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"2EQW3Q6X","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:0944bda8f8d21708850d548379c4dc0859854ca2b126d05e1166e1f3c577a1db","target":"graph","created_at":"2026-05-18T00:05:32Z","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 complex physics of the interaction between short pulse high intensity lasers and solids is so far hardly accessible by experiments. As a result of missing experimental capabilities to probe the complex electron dynamics and competing instabilities, this impedes the development of compact laser-based next generation secondary radiation sources, e.g. for tumor therapy [Bulanov2002,ledingham2007], laboratory-astrophysics [Remington1999,Bulanov2015], and fusion [Tabak2014]. At present, the fundamental plasma dynamics that occur at the nanometer and femtosecond scales during the laser-solid int","authors_text":"Alejandro Laso Garcia, Alexander Pelka, Arthur Erbe, Christian Gutt, Christian R\\\"odel, Emma E. McBride, Eric Galtier, Hae Ja Lee, Inhyuk Nam, Irene Prencipe, Josefine Metzkes, Karl Zeil, Malte Zacharias, Marco Garten, Martin Rehwald, Melanie R\\\"odel, Michael Bussmann, Motoaki Nakatsutsumi, Nicholas J. Hartley, Siegfried Glenzer, Thomas E. Cowan, Thomas Kluge, Tommy Sch\\\"onherr, Ulrich Schramm, Uwe H\\\"ubner, Yordan M. Georgiev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-25T14:07:54Z","title":"Observation of ultrafast solid-density plasma dynamics using femtosecond X-ray pulses from a free-electron laser"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.08404","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":"sha256:331a547f4bee97600034c094c0d61ad0a095466d93762cf31db4f5374221be87","target":"record","created_at":"2026-05-18T00:05:32Z","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":"2e3a766c41872019d742cc6364bd36925660bf924bfa198d88b5c35e14fb4f27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2018-01-25T14:07:54Z","title_canon_sha256":"d85dea15edc1ea75c3c4ca2d31d90688f782799813e237adb2655d23ddf09575"},"schema_version":"1.0","source":{"id":"1801.08404","kind":"arxiv","version":1}},"canonical_sha256":"d1216dc3d706dd48d435b728486057d654fd56dcf5f078a633655e914573957b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1216dc3d706dd48d435b728486057d654fd56dcf5f078a633655e914573957b","first_computed_at":"2026-05-18T00:05:32.123432Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:32.123432Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LALmwVX6OgMbcyv0/ORbsUeDTZ0KpSppokObjKNf5ymmxekhBGxyMusEta5fAlnhRBml0CwaH58K10mNKH/pCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:32.124020Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.08404","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:331a547f4bee97600034c094c0d61ad0a095466d93762cf31db4f5374221be87","sha256:0944bda8f8d21708850d548379c4dc0859854ca2b126d05e1166e1f3c577a1db"],"state_sha256":"f9d324863993eff42bf64805877259c74cf75468bddb267a97c7b654f6e263fc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZjpfqEV0mkIfugQag6Kv6SfYyGbqf0ywXetiqRDqNOxRhVJqnlgDwjuE8+nrqz9deAUj1dTJFvwuvD2lZmgAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T22:26:45.964813Z","bundle_sha256":"2364a1fe792082c95c78272d930307bf76f2ba0e307b2c0c799450cb15f8e4cb"}}