{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TJL2NQW64UVIMBXHQALFCI7GKU","short_pith_number":"pith:TJL2NQW6","canonical_record":{"source":{"id":"1612.03081","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-12-09T16:39:58Z","cross_cats_sorted":[],"title_canon_sha256":"7f78fde0ae11f2a44e3a0e855ea8c82e55eaeb017fce81a18b09bb71579e564c","abstract_canon_sha256":"5e4345654de11c5691906ea55379e0277ef482d6f5afd8f112ed530a54493f1d"},"schema_version":"1.0"},"canonical_sha256":"9a57a6c2dee52a8606e780165123e65509c5eba94e1d0777a39e0de3a88464b3","source":{"kind":"arxiv","id":"1612.03081","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03081","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03081v1","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03081","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"pith_short_12","alias_value":"TJL2NQW64UVI","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TJL2NQW64UVIMBXH","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TJL2NQW6","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TJL2NQW64UVIMBXHQALFCI7GKU","target":"record","payload":{"canonical_record":{"source":{"id":"1612.03081","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-12-09T16:39:58Z","cross_cats_sorted":[],"title_canon_sha256":"7f78fde0ae11f2a44e3a0e855ea8c82e55eaeb017fce81a18b09bb71579e564c","abstract_canon_sha256":"5e4345654de11c5691906ea55379e0277ef482d6f5afd8f112ed530a54493f1d"},"schema_version":"1.0"},"canonical_sha256":"9a57a6c2dee52a8606e780165123e65509c5eba94e1d0777a39e0de3a88464b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:41.911387Z","signature_b64":"fWOvOl9OKRjVNvp6sTrH0nkVwBJnqfjvLD6GTp+HJ0rKL4F2cv5LTv85/vo7xuFbLG2A16dwVqj9ubEWsG7UDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9a57a6c2dee52a8606e780165123e65509c5eba94e1d0777a39e0de3a88464b3","last_reissued_at":"2026-05-18T00:38:41.910643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:41.910643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.03081","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":"2026-05-18T00:38:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ED4AZkQD6ZFnHiFlXLpWnE5BQwDU1Ys+sVJDGWhmocWbwxoeMenMYaFlhBQhdcYIVNUu1WtrNM5urGFuD+3xAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:22:26.570359Z"},"content_sha256":"acbb5c838369da3bb8524fcdb988cdf46cf9e7ab62c3fad87f14b59f1fb64316","schema_version":"1.0","event_id":"sha256:acbb5c838369da3bb8524fcdb988cdf46cf9e7ab62c3fad87f14b59f1fb64316"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TJL2NQW64UVIMBXHQALFCI7GKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear oscillations and waves in multi-species cold plasmas","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Prabal Singh Verma","submitted_at":"2016-12-09T16:39:58Z","abstract_excerpt":"The spatio-temporal evolution of nonlinear oscillations in multi-species plasma is revisited to provide more insight into the physics of phase mixing by constructing two sets of nonlinear solutions up to the second order. The first solution exhibits perfect oscillations in the linear regime and phase mixing appears only nonlinearly in the second order as a response to the ponderomotive forces. This response can be both direct and indirect. The indirect contribution of the ponderomotive forces appears through self-consistently generated low frequency fields. Furthermore, the direct and indirect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03081","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":"2026-05-18T00:38:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/uUnH4bIRoD39TLrNhvKv1hgL1WSQbPb/PjhFEa0pbDZTeLneOd0kH8FQG8Xj4HGEcOomIGPWL5HD1OUjQqrAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T21:22:26.570724Z"},"content_sha256":"06795ea8713778afbc1aa7b2c59a3d7e192c79a58b73543c1a346b5d3a798cbf","schema_version":"1.0","event_id":"sha256:06795ea8713778afbc1aa7b2c59a3d7e192c79a58b73543c1a346b5d3a798cbf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TJL2NQW64UVIMBXHQALFCI7GKU/bundle.json","state_url":"https://pith.science/pith/TJL2NQW64UVIMBXHQALFCI7GKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TJL2NQW64UVIMBXHQALFCI7GKU/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":"2026-05-28T21:22:26Z","links":{"resolver":"https://pith.science/pith/TJL2NQW64UVIMBXHQALFCI7GKU","bundle":"https://pith.science/pith/TJL2NQW64UVIMBXHQALFCI7GKU/bundle.json","state":"https://pith.science/pith/TJL2NQW64UVIMBXHQALFCI7GKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TJL2NQW64UVIMBXHQALFCI7GKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TJL2NQW64UVIMBXHQALFCI7GKU","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":"5e4345654de11c5691906ea55379e0277ef482d6f5afd8f112ed530a54493f1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-12-09T16:39:58Z","title_canon_sha256":"7f78fde0ae11f2a44e3a0e855ea8c82e55eaeb017fce81a18b09bb71579e564c"},"schema_version":"1.0","source":{"id":"1612.03081","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.03081","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"arxiv_version","alias_value":"1612.03081v1","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.03081","created_at":"2026-05-18T00:38:41Z"},{"alias_kind":"pith_short_12","alias_value":"TJL2NQW64UVI","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TJL2NQW64UVIMBXH","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TJL2NQW6","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:06795ea8713778afbc1aa7b2c59a3d7e192c79a58b73543c1a346b5d3a798cbf","target":"graph","created_at":"2026-05-18T00:38:41Z","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":"The spatio-temporal evolution of nonlinear oscillations in multi-species plasma is revisited to provide more insight into the physics of phase mixing by constructing two sets of nonlinear solutions up to the second order. The first solution exhibits perfect oscillations in the linear regime and phase mixing appears only nonlinearly in the second order as a response to the ponderomotive forces. This response can be both direct and indirect. The indirect contribution of the ponderomotive forces appears through self-consistently generated low frequency fields. Furthermore, the direct and indirect","authors_text":"Prabal Singh Verma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-12-09T16:39:58Z","title":"Nonlinear oscillations and waves in multi-species cold plasmas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.03081","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:acbb5c838369da3bb8524fcdb988cdf46cf9e7ab62c3fad87f14b59f1fb64316","target":"record","created_at":"2026-05-18T00:38:41Z","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":"5e4345654de11c5691906ea55379e0277ef482d6f5afd8f112ed530a54493f1d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-12-09T16:39:58Z","title_canon_sha256":"7f78fde0ae11f2a44e3a0e855ea8c82e55eaeb017fce81a18b09bb71579e564c"},"schema_version":"1.0","source":{"id":"1612.03081","kind":"arxiv","version":1}},"canonical_sha256":"9a57a6c2dee52a8606e780165123e65509c5eba94e1d0777a39e0de3a88464b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9a57a6c2dee52a8606e780165123e65509c5eba94e1d0777a39e0de3a88464b3","first_computed_at":"2026-05-18T00:38:41.910643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:41.910643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fWOvOl9OKRjVNvp6sTrH0nkVwBJnqfjvLD6GTp+HJ0rKL4F2cv5LTv85/vo7xuFbLG2A16dwVqj9ubEWsG7UDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:41.911387Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.03081","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:acbb5c838369da3bb8524fcdb988cdf46cf9e7ab62c3fad87f14b59f1fb64316","sha256:06795ea8713778afbc1aa7b2c59a3d7e192c79a58b73543c1a346b5d3a798cbf"],"state_sha256":"a002eb0463872fb64b8ca72b45bcd26c002c13422783e1ef193ab5d39c417c3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V/kDkb+U9wzkGnVZI5MKBUHnH3trOaZf0HW1Z8dBa43MDL/k8otiy0zXyDE6vdnbwKPptfMC9Gcu9SgttDaqBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T21:22:26.572924Z","bundle_sha256":"365206915fc48368fcd2655ecc6d5d6e2816cfefd36e26328a449a678bf8d289"}}