{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:ZYW7GHPLLFMGNSWCZBH7OFPTXZ","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":"568abd5f4f331d9cf7377e4142aadca5b4178e1ca62c9f0004769bb18d8e3f9e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-21T19:24:31Z","title_canon_sha256":"7fd463f2e28c21ed430dd657d3da6dbe5ebcba3def87ca59939c23fdc1ce9dcf"},"schema_version":"1.0","source":{"id":"0706.3126","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0706.3126","created_at":"2026-07-04T17:04:22Z"},{"alias_kind":"arxiv_version","alias_value":"0706.3126v1","created_at":"2026-07-04T17:04:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0706.3126","created_at":"2026-07-04T17:04:22Z"},{"alias_kind":"pith_short_12","alias_value":"ZYW7GHPLLFMG","created_at":"2026-07-04T17:04:22Z"},{"alias_kind":"pith_short_16","alias_value":"ZYW7GHPLLFMGNSWC","created_at":"2026-07-04T17:04:22Z"},{"alias_kind":"pith_short_8","alias_value":"ZYW7GHPL","created_at":"2026-07-04T17:04:22Z"}],"graph_snapshots":[{"event_id":"sha256:4120646e757f73de824f3746649821af5d46ca9bd7f8a33aac2ef703233f26bd","target":"graph","created_at":"2026-07-04T17:04:22Z","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/0706.3126/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Relativistic collisionless shocks in electron-ion plasma are thought to occur in the afterglow phase of Gamma-Ray Bursts (GRBs), and in other environments where relativistic flows interact with the interstellar medium. A particular regime of shocks in an unmagnetized plasma has generated much interest for GRB applications. In this paper we present ab-initio particle-in-cell simulations of unmagnetized relativistic electron-ion shocks. Using long-term 2.5-dimensional simulations with ion-electron mass ratios from 16 to 1000 we resolve the shock formation and reach a steady-state shock structure","authors_text":"Anatoly Spitkovsky (Princeton University)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-06-21T19:24:31Z","title":"On the structure of relativistic collisionless shocks in electron-ion plasmas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0706.3126","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":"sha256:76edf5fdb28268534c694816fbdacb71475b8365963187e84e7433155385198a","target":"record","created_at":"2026-07-04T17:04:22Z","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":"568abd5f4f331d9cf7377e4142aadca5b4178e1ca62c9f0004769bb18d8e3f9e","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-06-21T19:24:31Z","title_canon_sha256":"7fd463f2e28c21ed430dd657d3da6dbe5ebcba3def87ca59939c23fdc1ce9dcf"},"schema_version":"1.0","source":{"id":"0706.3126","kind":"arxiv","version":1}},"canonical_sha256":"ce2df31deb595866cac2c84ff715f3be6e74557ff912072ad41039d146003045","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ce2df31deb595866cac2c84ff715f3be6e74557ff912072ad41039d146003045","first_computed_at":"2026-07-04T17:04:22.706763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:04:22.706763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SCHR63ZHscWhEkC8G+1tcF8CWsaVITpa0Iz3OtCgySivJg//tQsPZ56qYX8wJyf2OH/8jFMgMf9La5KWWFXQDw==","signature_status":"signed_v1","signed_at":"2026-07-04T17:04:22.707118Z","signed_message":"canonical_sha256_bytes"},"source_id":"0706.3126","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76edf5fdb28268534c694816fbdacb71475b8365963187e84e7433155385198a","sha256:4120646e757f73de824f3746649821af5d46ca9bd7f8a33aac2ef703233f26bd"],"state_sha256":"656d3ce469b90ac7deb28092960fe42ea853921a8bd81357f92a1422b12a5ab3"}