{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:25AV3BHGOBKFLZA5FV6Q6MRAUW","short_pith_number":"pith:25AV3BHG","canonical_record":{"source":{"id":"1503.05048","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T13:49:29Z","cross_cats_sorted":[],"title_canon_sha256":"c438b40c7f3bf5e8c1888fca8e3b3e78373528bccaf8419f6d10302a0d3b9925","abstract_canon_sha256":"7e4c0136349ea4994aa176b27c5d2963ba2ff55aedbf2b4b54fb1206e7f54329"},"schema_version":"1.0"},"canonical_sha256":"d7415d84e6705455e41d2d7d0f3220a5b6723ef623e866820da9f0e9518b859f","source":{"kind":"arxiv","id":"1503.05048","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05048","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05048v1","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05048","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"pith_short_12","alias_value":"25AV3BHGOBKF","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"25AV3BHGOBKFLZA5","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"25AV3BHG","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:25AV3BHGOBKFLZA5FV6Q6MRAUW","target":"record","payload":{"canonical_record":{"source":{"id":"1503.05048","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T13:49:29Z","cross_cats_sorted":[],"title_canon_sha256":"c438b40c7f3bf5e8c1888fca8e3b3e78373528bccaf8419f6d10302a0d3b9925","abstract_canon_sha256":"7e4c0136349ea4994aa176b27c5d2963ba2ff55aedbf2b4b54fb1206e7f54329"},"schema_version":"1.0"},"canonical_sha256":"d7415d84e6705455e41d2d7d0f3220a5b6723ef623e866820da9f0e9518b859f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:40.921678Z","signature_b64":"64GSpNVqJci7rOAjsjUA4m1sqyaRckPQ3g2oWlN2fyAZKuNNjsyu2My2HAGrfdch/9YKqQ64w0sXIUBss+eKCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7415d84e6705455e41d2d7d0f3220a5b6723ef623e866820da9f0e9518b859f","last_reissued_at":"2026-05-18T01:22:40.921200Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:40.921200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.05048","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":"2026-05-18T01:22:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fLEongkGj+2jhJ2yMHNDhTGgltWcyuDo9WvmJpAxUXJ87G+T4oqdznzsTmElRJRZ5ZJH0oTGnadpkvink8TJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:43:39.404643Z"},"content_sha256":"8a9cfcb7a0e15624d2dc35f44c0cba18a2b00faa847f4a079eedcefe6cd416f3","schema_version":"1.0","event_id":"sha256:8a9cfcb7a0e15624d2dc35f44c0cba18a2b00faa847f4a079eedcefe6cd416f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:25AV3BHGOBKFLZA5FV6Q6MRAUW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generation of anomalously energetic suprathermal electrons by an electron beam interacting with a nonuniform plasma","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"D. Sydorenko, I. D. Kaganovich, L. Chen, P. L. G. Ventzek","submitted_at":"2015-03-17T13:49:29Z","abstract_excerpt":"Generation of anomalously energetic suprathermal electrons was observed in simulation of a high- voltage dc discharge with electron emission from the cathode. An electron beam produced by the emission interacts with the nonuniform plasma in the discharge via a two-stream instability. Efficient energy transfer from the beam to the plasma electrons is ensured by the plasma nonuniformity. The electron beam excites plasma waves whose wavelength and phase speed gradually decrease towards anode. The short waves near the anode accelerate plasma bulk electrons to suprathermal energies. The sheath near"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05048","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":"2026-05-18T01:22:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gx3nB4Quyl3KSxkJ7JuqwysAE3CERK5UT1ci9xtg+9n8IHXbBNszJRAbaLAftJpk9z15fu5NzO/3IDI4Gej1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:43:39.405002Z"},"content_sha256":"2f8aee612d43ad7bec8876dfaa63f1504f00c838c29e78cdf42df8e8e7f678d0","schema_version":"1.0","event_id":"sha256:2f8aee612d43ad7bec8876dfaa63f1504f00c838c29e78cdf42df8e8e7f678d0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/bundle.json","state_url":"https://pith.science/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/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":"2026-06-03T05:43:39Z","links":{"resolver":"https://pith.science/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW","bundle":"https://pith.science/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/bundle.json","state":"https://pith.science/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/25AV3BHGOBKFLZA5FV6Q6MRAUW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:25AV3BHGOBKFLZA5FV6Q6MRAUW","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":"7e4c0136349ea4994aa176b27c5d2963ba2ff55aedbf2b4b54fb1206e7f54329","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T13:49:29Z","title_canon_sha256":"c438b40c7f3bf5e8c1888fca8e3b3e78373528bccaf8419f6d10302a0d3b9925"},"schema_version":"1.0","source":{"id":"1503.05048","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.05048","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"arxiv_version","alias_value":"1503.05048v1","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.05048","created_at":"2026-05-18T01:22:40Z"},{"alias_kind":"pith_short_12","alias_value":"25AV3BHGOBKF","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"25AV3BHGOBKFLZA5","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"25AV3BHG","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:2f8aee612d43ad7bec8876dfaa63f1504f00c838c29e78cdf42df8e8e7f678d0","target":"graph","created_at":"2026-05-18T01:22:40Z","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":"Generation of anomalously energetic suprathermal electrons was observed in simulation of a high- voltage dc discharge with electron emission from the cathode. An electron beam produced by the emission interacts with the nonuniform plasma in the discharge via a two-stream instability. Efficient energy transfer from the beam to the plasma electrons is ensured by the plasma nonuniformity. The electron beam excites plasma waves whose wavelength and phase speed gradually decrease towards anode. The short waves near the anode accelerate plasma bulk electrons to suprathermal energies. The sheath near","authors_text":"D. Sydorenko, I. D. Kaganovich, L. Chen, P. L. G. Ventzek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T13:49:29Z","title":"Generation of anomalously energetic suprathermal electrons by an electron beam interacting with a nonuniform plasma"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.05048","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":"sha256:8a9cfcb7a0e15624d2dc35f44c0cba18a2b00faa847f4a079eedcefe6cd416f3","target":"record","created_at":"2026-05-18T01:22:40Z","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":"7e4c0136349ea4994aa176b27c5d2963ba2ff55aedbf2b4b54fb1206e7f54329","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2015-03-17T13:49:29Z","title_canon_sha256":"c438b40c7f3bf5e8c1888fca8e3b3e78373528bccaf8419f6d10302a0d3b9925"},"schema_version":"1.0","source":{"id":"1503.05048","kind":"arxiv","version":1}},"canonical_sha256":"d7415d84e6705455e41d2d7d0f3220a5b6723ef623e866820da9f0e9518b859f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7415d84e6705455e41d2d7d0f3220a5b6723ef623e866820da9f0e9518b859f","first_computed_at":"2026-05-18T01:22:40.921200Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:40.921200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"64GSpNVqJci7rOAjsjUA4m1sqyaRckPQ3g2oWlN2fyAZKuNNjsyu2My2HAGrfdch/9YKqQ64w0sXIUBss+eKCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:40.921678Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.05048","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8a9cfcb7a0e15624d2dc35f44c0cba18a2b00faa847f4a079eedcefe6cd416f3","sha256:2f8aee612d43ad7bec8876dfaa63f1504f00c838c29e78cdf42df8e8e7f678d0"],"state_sha256":"1b787cd7cfbae0e136c74636cc169bbbde0eab6a6d41b60e8127625f0ac8b681"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L2E/DKHSB8RmdbeMKKNT/SC1RaR7D9zzIiUH/+gwqNVF/MJydbY0tKsTvqkfVoqbgq3RYNm/niA0QnO5gVDZCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:43:39.406989Z","bundle_sha256":"eaed1de277282cce57260fe768d88a0536d05d0c54faf16eaaa423a985e0295a"}}