{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:WKWPCC5CIX6NQWQQ2UTTGIUD3H","short_pith_number":"pith:WKWPCC5C","canonical_record":{"source":{"id":"1312.6406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-12-22T17:01:04Z","cross_cats_sorted":[],"title_canon_sha256":"4c2588fb05b7ffc2b174e69ba87793a8c2b9389eb5d392dcd8c9959ee502baf0","abstract_canon_sha256":"c8c3ab29bd18b8a0b434cc11a2de7c24f304785f255b95b3230381d72f01796c"},"schema_version":"1.0"},"canonical_sha256":"b2acf10ba245fcd85a10d527332283d9f9c01eb5311a10bcdc63122f4ade8205","source":{"kind":"arxiv","id":"1312.6406","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.6406","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"arxiv_version","alias_value":"1312.6406v1","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.6406","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"pith_short_12","alias_value":"WKWPCC5CIX6N","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WKWPCC5CIX6NQWQQ","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WKWPCC5C","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:WKWPCC5CIX6NQWQQ2UTTGIUD3H","target":"record","payload":{"canonical_record":{"source":{"id":"1312.6406","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-12-22T17:01:04Z","cross_cats_sorted":[],"title_canon_sha256":"4c2588fb05b7ffc2b174e69ba87793a8c2b9389eb5d392dcd8c9959ee502baf0","abstract_canon_sha256":"c8c3ab29bd18b8a0b434cc11a2de7c24f304785f255b95b3230381d72f01796c"},"schema_version":"1.0"},"canonical_sha256":"b2acf10ba245fcd85a10d527332283d9f9c01eb5311a10bcdc63122f4ade8205","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:53:14.791257Z","signature_b64":"nsoYi/iD2zuTWLg8/5FDu/9SVeRYwypIqCSzlb5x2ysJv29cj4ZxIFzkC9sy5cubI6yRlUbONxwVagoQ+dRzDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2acf10ba245fcd85a10d527332283d9f9c01eb5311a10bcdc63122f4ade8205","last_reissued_at":"2026-05-17T23:53:14.790608Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:53:14.790608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1312.6406","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":"2026-05-17T23:53:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O8ndwv10tzb2fS5vmvnuCt6kqYi2pwLfjQvj5H05FZeIanJwu0jLSksa8+h5mtbkWW80EQHXB1JGjqCH7W0ODg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:25:22.649246Z"},"content_sha256":"19f647bc2f7107ca82fd2f74ec830646182921b2c219e5bd1e61f68c6071a718","schema_version":"1.0","event_id":"sha256:19f647bc2f7107ca82fd2f74ec830646182921b2c219e5bd1e61f68c6071a718"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:WKWPCC5CIX6NQWQQ2UTTGIUD3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ion Acoustic Travelling Waves","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"G. M. Webb, G. P. Zank, R. H. Burrows, X. Ao","submitted_at":"2013-12-22T17:01:04Z","abstract_excerpt":"Models for travelling waves in multi-fluid plasmas give essential insight into fully nonlinear wave structures in plasmas, not readily available from either numerical simulations or from weakly nonlinear wave theories. We illustrate these ideas using one of the simplest models of an electron-proton multi-fluid plasma for the case where there is no magnetic field or a constant normal magnetic field present. We show that the travelling waves can be reduced to a single first order differential equation governing the dynamics. We also show that the equations admit a multi-symplectic Hamiltonian fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.6406","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":"2026-05-17T23:53:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6sNvVYFyfIZJAple62H54OXqkdeV8alCUEUODKVOXUKW3BU/XyZUp2MK0dTq8V5I3HocdVZu+KWOjVL7FEhUAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:25:22.649801Z"},"content_sha256":"ed7e100d36783367e95a7958da9ff27bd906dbf7f12e9df4cb7cd96bba3f7b42","schema_version":"1.0","event_id":"sha256:ed7e100d36783367e95a7958da9ff27bd906dbf7f12e9df4cb7cd96bba3f7b42"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/bundle.json","state_url":"https://pith.science/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/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":"2026-06-02T11:25:22Z","links":{"resolver":"https://pith.science/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H","bundle":"https://pith.science/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/bundle.json","state":"https://pith.science/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WKWPCC5CIX6NQWQQ2UTTGIUD3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WKWPCC5CIX6NQWQQ2UTTGIUD3H","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":"c8c3ab29bd18b8a0b434cc11a2de7c24f304785f255b95b3230381d72f01796c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-12-22T17:01:04Z","title_canon_sha256":"4c2588fb05b7ffc2b174e69ba87793a8c2b9389eb5d392dcd8c9959ee502baf0"},"schema_version":"1.0","source":{"id":"1312.6406","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.6406","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"arxiv_version","alias_value":"1312.6406v1","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.6406","created_at":"2026-05-17T23:53:14Z"},{"alias_kind":"pith_short_12","alias_value":"WKWPCC5CIX6N","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WKWPCC5CIX6NQWQQ","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WKWPCC5C","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:ed7e100d36783367e95a7958da9ff27bd906dbf7f12e9df4cb7cd96bba3f7b42","target":"graph","created_at":"2026-05-17T23:53:14Z","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":"Models for travelling waves in multi-fluid plasmas give essential insight into fully nonlinear wave structures in plasmas, not readily available from either numerical simulations or from weakly nonlinear wave theories. We illustrate these ideas using one of the simplest models of an electron-proton multi-fluid plasma for the case where there is no magnetic field or a constant normal magnetic field present. We show that the travelling waves can be reduced to a single first order differential equation governing the dynamics. We also show that the equations admit a multi-symplectic Hamiltonian fo","authors_text":"G. M. Webb, G. P. Zank, R. H. Burrows, X. Ao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-12-22T17:01:04Z","title":"Ion Acoustic Travelling Waves"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.6406","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":"sha256:19f647bc2f7107ca82fd2f74ec830646182921b2c219e5bd1e61f68c6071a718","target":"record","created_at":"2026-05-17T23:53:14Z","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":"c8c3ab29bd18b8a0b434cc11a2de7c24f304785f255b95b3230381d72f01796c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-12-22T17:01:04Z","title_canon_sha256":"4c2588fb05b7ffc2b174e69ba87793a8c2b9389eb5d392dcd8c9959ee502baf0"},"schema_version":"1.0","source":{"id":"1312.6406","kind":"arxiv","version":1}},"canonical_sha256":"b2acf10ba245fcd85a10d527332283d9f9c01eb5311a10bcdc63122f4ade8205","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b2acf10ba245fcd85a10d527332283d9f9c01eb5311a10bcdc63122f4ade8205","first_computed_at":"2026-05-17T23:53:14.790608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:53:14.790608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nsoYi/iD2zuTWLg8/5FDu/9SVeRYwypIqCSzlb5x2ysJv29cj4ZxIFzkC9sy5cubI6yRlUbONxwVagoQ+dRzDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:53:14.791257Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.6406","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19f647bc2f7107ca82fd2f74ec830646182921b2c219e5bd1e61f68c6071a718","sha256:ed7e100d36783367e95a7958da9ff27bd906dbf7f12e9df4cb7cd96bba3f7b42"],"state_sha256":"35665524cd6784bc45f7b71bd4d017d04d3eac280c7492c22cb8478791f52e43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZQ8dLdCobilDG8RvYD5Lofwg/3FPHzuAuRZ/zwJSvynZ/E+UHjtrcqoQmjIp4a+Rk6paZ914sCVjjqlvoOkXBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T11:25:22.653127Z","bundle_sha256":"8cb51a88ee4ddd6f8c82667056189f17497651170695cab76c38b6cf9c9c503d"}}