{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JAPLO2P47ZPRO7FO6HMA6BQS6Z","short_pith_number":"pith:JAPLO2P4","canonical_record":{"source":{"id":"1502.00398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2015-02-02T08:35:54Z","cross_cats_sorted":[],"title_canon_sha256":"2fbe4a9e3d05c8f5c57450cac4241ceb1e52145797e77ddff5a7430cdeac8eff","abstract_canon_sha256":"be841a7cafc25ef64ba0b0dfb9a0d2e7bdadd3cb7746f0f158497cbc11720527"},"schema_version":"1.0"},"canonical_sha256":"481eb769fcfe5f177caef1d80f0612f66ba130ea60b45f6febbf34a5ecdb9be0","source":{"kind":"arxiv","id":"1502.00398","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00398","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00398v2","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00398","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"pith_short_12","alias_value":"JAPLO2P47ZPR","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JAPLO2P47ZPRO7FO","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JAPLO2P4","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JAPLO2P47ZPRO7FO6HMA6BQS6Z","target":"record","payload":{"canonical_record":{"source":{"id":"1502.00398","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2015-02-02T08:35:54Z","cross_cats_sorted":[],"title_canon_sha256":"2fbe4a9e3d05c8f5c57450cac4241ceb1e52145797e77ddff5a7430cdeac8eff","abstract_canon_sha256":"be841a7cafc25ef64ba0b0dfb9a0d2e7bdadd3cb7746f0f158497cbc11720527"},"schema_version":"1.0"},"canonical_sha256":"481eb769fcfe5f177caef1d80f0612f66ba130ea60b45f6febbf34a5ecdb9be0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:18.573610Z","signature_b64":"AVn8JrPciPJX+a7JpJih9n5LsAC2pczliLJW/HIBVUpkbh3PYulFyRrIYWzVpUkBwwuPCWT+209JeNPckgpSAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"481eb769fcfe5f177caef1d80f0612f66ba130ea60b45f6febbf34a5ecdb9be0","last_reissued_at":"2026-05-18T00:57:18.573136Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:18.573136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.00398","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:57:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"j2YYZdXBAjqRwsEEaxARXu1sjcIaV2MPJkuKIkrbhjlk6++RMlWJpqvsdnKyshITaC7X4LE+0MxWJqFj0SA3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T04:27:04.450301Z"},"content_sha256":"6e52907030b040023a6c1a128c820b61218b26c62becd1266feb0f7584835592","schema_version":"1.0","event_id":"sha256:6e52907030b040023a6c1a128c820b61218b26c62becd1266feb0f7584835592"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JAPLO2P47ZPRO7FO6HMA6BQS6Z","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absence of shocks for 1D EULER-POISSON system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.AP","authors_text":"Jingjun Zhang, Lijia Han, Yan Guo","submitted_at":"2015-02-02T08:35:54Z","abstract_excerpt":"It is shown that smooth solutions with small amplitude to the 1D Euler-Poisson system for electrons persist forever with no shock formation."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00398","kind":"arxiv","version":2},"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":"2026-05-18T00:57:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3s4sDZm180w5yDkVeCyPD68aIn014o8a4eMK2LJjaclVFuzRivPlpF1m5ueSoWVu2q9b69naYOvdUtpRaVKhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T04:27:04.451062Z"},"content_sha256":"158c32817c7da29226a23d3b7010eb6f31aa9c56704c975459d1b7a58d75517f","schema_version":"1.0","event_id":"sha256:158c32817c7da29226a23d3b7010eb6f31aa9c56704c975459d1b7a58d75517f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/bundle.json","state_url":"https://pith.science/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/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":"2026-06-11T04:27:04Z","links":{"resolver":"https://pith.science/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z","bundle":"https://pith.science/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/bundle.json","state":"https://pith.science/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JAPLO2P47ZPRO7FO6HMA6BQS6Z/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JAPLO2P47ZPRO7FO6HMA6BQS6Z","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":"be841a7cafc25ef64ba0b0dfb9a0d2e7bdadd3cb7746f0f158497cbc11720527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2015-02-02T08:35:54Z","title_canon_sha256":"2fbe4a9e3d05c8f5c57450cac4241ceb1e52145797e77ddff5a7430cdeac8eff"},"schema_version":"1.0","source":{"id":"1502.00398","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00398","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00398v2","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00398","created_at":"2026-05-18T00:57:18Z"},{"alias_kind":"pith_short_12","alias_value":"JAPLO2P47ZPR","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JAPLO2P47ZPRO7FO","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JAPLO2P4","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:158c32817c7da29226a23d3b7010eb6f31aa9c56704c975459d1b7a58d75517f","target":"graph","created_at":"2026-05-18T00:57:18Z","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":"It is shown that smooth solutions with small amplitude to the 1D Euler-Poisson system for electrons persist forever with no shock formation.","authors_text":"Jingjun Zhang, Lijia Han, Yan Guo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2015-02-02T08:35:54Z","title":"Absence of shocks for 1D EULER-POISSON system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00398","kind":"arxiv","version":2},"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":"sha256:6e52907030b040023a6c1a128c820b61218b26c62becd1266feb0f7584835592","target":"record","created_at":"2026-05-18T00:57:18Z","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":"be841a7cafc25ef64ba0b0dfb9a0d2e7bdadd3cb7746f0f158497cbc11720527","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.AP","submitted_at":"2015-02-02T08:35:54Z","title_canon_sha256":"2fbe4a9e3d05c8f5c57450cac4241ceb1e52145797e77ddff5a7430cdeac8eff"},"schema_version":"1.0","source":{"id":"1502.00398","kind":"arxiv","version":2}},"canonical_sha256":"481eb769fcfe5f177caef1d80f0612f66ba130ea60b45f6febbf34a5ecdb9be0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"481eb769fcfe5f177caef1d80f0612f66ba130ea60b45f6febbf34a5ecdb9be0","first_computed_at":"2026-05-18T00:57:18.573136Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:18.573136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AVn8JrPciPJX+a7JpJih9n5LsAC2pczliLJW/HIBVUpkbh3PYulFyRrIYWzVpUkBwwuPCWT+209JeNPckgpSAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:18.573610Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.00398","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6e52907030b040023a6c1a128c820b61218b26c62becd1266feb0f7584835592","sha256:158c32817c7da29226a23d3b7010eb6f31aa9c56704c975459d1b7a58d75517f"],"state_sha256":"ab8e705d25459bc964744401397efc6c2e0817aff5b01a5bce6c5dbb201ee41f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KCMH4oRDW+8Hofnc0q2kc+zVTJMCYMaxN54AXJ+hUlEip7rmaq42yf74YcS4my1Ad00RHGaZ+8DGCdluln+9Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T04:27:04.455726Z","bundle_sha256":"fb558addf176f061eb4113024129dba3f68f94e56b227d6a1e9c669586985557"}}