{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DSRW2MKH3KCJG3RCLK7KUO7IZZ","short_pith_number":"pith:DSRW2MKH","canonical_record":{"source":{"id":"1701.04075","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-15T17:03:41Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"768d2460e699ab30dba02614dde3bdc7cf442f96428d1eb41e860558d55416d3","abstract_canon_sha256":"dc66bfdd86e5d8d0fbac53e90b572afc2b59fae97c3f3b4c682566be1e128722"},"schema_version":"1.0"},"canonical_sha256":"1ca36d3147da84936e225abeaa3be8ce6ed5d31f7e1cb57cf7f5e7014479ebc8","source":{"kind":"arxiv","id":"1701.04075","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.04075","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"arxiv_version","alias_value":"1701.04075v1","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04075","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"pith_short_12","alias_value":"DSRW2MKH3KCJ","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DSRW2MKH3KCJG3RC","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DSRW2MKH","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DSRW2MKH3KCJG3RCLK7KUO7IZZ","target":"record","payload":{"canonical_record":{"source":{"id":"1701.04075","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-15T17:03:41Z","cross_cats_sorted":["physics.plasm-ph"],"title_canon_sha256":"768d2460e699ab30dba02614dde3bdc7cf442f96428d1eb41e860558d55416d3","abstract_canon_sha256":"dc66bfdd86e5d8d0fbac53e90b572afc2b59fae97c3f3b4c682566be1e128722"},"schema_version":"1.0"},"canonical_sha256":"1ca36d3147da84936e225abeaa3be8ce6ed5d31f7e1cb57cf7f5e7014479ebc8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:09.910979Z","signature_b64":"QT7POld1Lrg6k57gRxbHGpja70iJb2zLHy4+Gqoonc7fH7ZY9xj7490Penp/TgmLh54OCCPr86E49RMz8fGtAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1ca36d3147da84936e225abeaa3be8ce6ed5d31f7e1cb57cf7f5e7014479ebc8","last_reissued_at":"2026-05-18T00:49:09.910430Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:09.910430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.04075","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":"2026-05-18T00:49:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SHQQUGZbvq/62JuOuecWTw/ndjf6KtBytzhTh4kZbuXPeLgC8b+WkewANesxnWAlLB1u6315EfHJNc0iOWokAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:54:59.737745Z"},"content_sha256":"ea56cae53b5cfaa3faa86c4734336da4c271657385b79203d875a1b849efcb49","schema_version":"1.0","event_id":"sha256:ea56cae53b5cfaa3faa86c4734336da4c271657385b79203d875a1b849efcb49"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DSRW2MKH3KCJG3RCLK7KUO7IZZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Simulation study of the formation of a non-relativistic pair shock","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.plasm-ph"],"primary_cat":"astro-ph.HE","authors_text":"Antoine Bret, Mark Eric Dieckmann","submitted_at":"2017-01-15T17:03:41Z","abstract_excerpt":"We examine with a particle-in-cell (PIC) simulation the collision of two equally dense clouds of cold pair plasma. The clouds interpenetrate until instabilities set in, which heat up the plasma and trigger the formation of a pair of shocks. The fastest-growing waves at the collision speed c/5 and low temperature are the electrostatic two-stream mode and the quasi-electrostatic oblique mode. Both waves grow and saturate via the formation of phase space vortices. The strong electric fields of these nonlinear plasma structures provide an efficient means of heating up and compressing the inflowing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04075","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":"2026-05-18T00:49:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yANRNWAazygOBpiZU+dNddqAO7hM7nYl5fUY1qwqItVcxTX/UOTsHpTat6MddbtNSo/IbswoAkZbE0oxsoOtBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:54:59.738428Z"},"content_sha256":"8b1b8dbd425ac84d4ca628d03f746298f7ea69cfc197ef69c5d88950c20c3210","schema_version":"1.0","event_id":"sha256:8b1b8dbd425ac84d4ca628d03f746298f7ea69cfc197ef69c5d88950c20c3210"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/bundle.json","state_url":"https://pith.science/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/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":"2026-06-05T01:54:59Z","links":{"resolver":"https://pith.science/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ","bundle":"https://pith.science/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/bundle.json","state":"https://pith.science/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DSRW2MKH3KCJG3RCLK7KUO7IZZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DSRW2MKH3KCJG3RCLK7KUO7IZZ","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":"dc66bfdd86e5d8d0fbac53e90b572afc2b59fae97c3f3b4c682566be1e128722","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-15T17:03:41Z","title_canon_sha256":"768d2460e699ab30dba02614dde3bdc7cf442f96428d1eb41e860558d55416d3"},"schema_version":"1.0","source":{"id":"1701.04075","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.04075","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"arxiv_version","alias_value":"1701.04075v1","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04075","created_at":"2026-05-18T00:49:09Z"},{"alias_kind":"pith_short_12","alias_value":"DSRW2MKH3KCJ","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DSRW2MKH3KCJG3RC","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DSRW2MKH","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:8b1b8dbd425ac84d4ca628d03f746298f7ea69cfc197ef69c5d88950c20c3210","target":"graph","created_at":"2026-05-18T00:49:09Z","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 examine with a particle-in-cell (PIC) simulation the collision of two equally dense clouds of cold pair plasma. The clouds interpenetrate until instabilities set in, which heat up the plasma and trigger the formation of a pair of shocks. The fastest-growing waves at the collision speed c/5 and low temperature are the electrostatic two-stream mode and the quasi-electrostatic oblique mode. Both waves grow and saturate via the formation of phase space vortices. The strong electric fields of these nonlinear plasma structures provide an efficient means of heating up and compressing the inflowing","authors_text":"Antoine Bret, Mark Eric Dieckmann","cross_cats":["physics.plasm-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-15T17:03:41Z","title":"Simulation study of the formation of a non-relativistic pair shock"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04075","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:ea56cae53b5cfaa3faa86c4734336da4c271657385b79203d875a1b849efcb49","target":"record","created_at":"2026-05-18T00:49:09Z","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":"dc66bfdd86e5d8d0fbac53e90b572afc2b59fae97c3f3b4c682566be1e128722","cross_cats_sorted":["physics.plasm-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-15T17:03:41Z","title_canon_sha256":"768d2460e699ab30dba02614dde3bdc7cf442f96428d1eb41e860558d55416d3"},"schema_version":"1.0","source":{"id":"1701.04075","kind":"arxiv","version":1}},"canonical_sha256":"1ca36d3147da84936e225abeaa3be8ce6ed5d31f7e1cb57cf7f5e7014479ebc8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ca36d3147da84936e225abeaa3be8ce6ed5d31f7e1cb57cf7f5e7014479ebc8","first_computed_at":"2026-05-18T00:49:09.910430Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:09.910430Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QT7POld1Lrg6k57gRxbHGpja70iJb2zLHy4+Gqoonc7fH7ZY9xj7490Penp/TgmLh54OCCPr86E49RMz8fGtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:09.910979Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.04075","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea56cae53b5cfaa3faa86c4734336da4c271657385b79203d875a1b849efcb49","sha256:8b1b8dbd425ac84d4ca628d03f746298f7ea69cfc197ef69c5d88950c20c3210"],"state_sha256":"0139b471e062c03762950871fd0aba103b15fd60ca0ce2ff3b1e57cb92100bda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0wsUBUiY/qpKfEGyTSuS9fVjzaDvs7VnhSnvEaZOAJI5MqJ//91FrFgJJrfFwOcvb1/YjFONGuM/0w6DlL0BAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:54:59.741448Z","bundle_sha256":"65b1bfdcfd01403d041f6272568fd2e83671d3f36b6f2bfdb96ed0c453b1fc94"}}