{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:URQYOMAKWJKMQDWW3KA2OF3SQY","short_pith_number":"pith:URQYOMAK","canonical_record":{"source":{"id":"gr-qc/0301095","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2003-01-23T08:06:38Z","cross_cats_sorted":[],"title_canon_sha256":"8123661e0e689296d5ed3a816c1435ee2d6fe1db5a4f334a5e17fddc5a944442","abstract_canon_sha256":"cb2411c9327d1ab776b9ebe26e58d4833b5a330a85af5bf4c7eb9178617c3b7e"},"schema_version":"1.0"},"canonical_sha256":"a46187300ab254c80ed6da81a7177286251ec852cb67e83d3156f3d18270a567","source":{"kind":"arxiv","id":"gr-qc/0301095","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0301095","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0301095v1","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0301095","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"pith_short_12","alias_value":"URQYOMAKWJKM","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"URQYOMAKWJKMQDWW","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"URQYOMAK","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:URQYOMAKWJKMQDWW3KA2OF3SQY","target":"record","payload":{"canonical_record":{"source":{"id":"gr-qc/0301095","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"gr-qc","submitted_at":"2003-01-23T08:06:38Z","cross_cats_sorted":[],"title_canon_sha256":"8123661e0e689296d5ed3a816c1435ee2d6fe1db5a4f334a5e17fddc5a944442","abstract_canon_sha256":"cb2411c9327d1ab776b9ebe26e58d4833b5a330a85af5bf4c7eb9178617c3b7e"},"schema_version":"1.0"},"canonical_sha256":"a46187300ab254c80ed6da81a7177286251ec852cb67e83d3156f3d18270a567","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:23.332541Z","signature_b64":"NHZcayILZiTcB0s9YYos7f0znOG/Gqrikswite587naE3IuFqhElNhoTeacwnrhERZROIt2kyJIIzc8WO4ZkAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a46187300ab254c80ed6da81a7177286251ec852cb67e83d3156f3d18270a567","last_reissued_at":"2026-05-18T01:39:23.331861Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:23.331861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"gr-qc/0301095","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":"2026-05-18T01:39:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RcNGC3BM/dhoXtgONdnlCrCOc43eoL3522OjWk8v7cLzmd9YwRWJGjOLN5csB/oIhr5ru60UjTrLLU4mBSm4DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:42:59.335559Z"},"content_sha256":"bef3bd4a575973fffe4ef997b5d9bfe633b75a539dde7b69e5969956f5a48d40","schema_version":"1.0","event_id":"sha256:bef3bd4a575973fffe4ef997b5d9bfe633b75a539dde7b69e5969956f5a48d40"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:URQYOMAKWJKMQDWW3KA2OF3SQY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-interacting gas in a gravitational wave field","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Alexander B. Balakin (Kazan), Winfried Zimdahl (Konstanz)","submitted_at":"2003-01-23T08:06:38Z","abstract_excerpt":"We investigate a relativistic self-interacting gas in the field of an external {\\it pp} gravitational wave. Based on symmetry considerations we ask for those forces which are able to compensate the imprint of the gravitational wave on the macroscopic 4-acceleration of the gaseous fluid. We establish an exactly solvable toy model according to which the stationary states which characterize such a situation have negative entropy production and are accompanied by instabilities of the microscopic particle motion. These features are similar to those which one encounters in phenomena of self-organiza"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0301095","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":"2026-05-18T01:39:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eff192RFuBioB+gNP0MbECLuDTnVkazsBSFLeAteRnOZSN42CnSJE5VqZWOpygpIaIs27Z4J2HqGm77J81EtBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T20:42:59.336226Z"},"content_sha256":"9343b1a640113c5b6ec63ce9e2393804920f5065f6ab9ec4dde2004249bb9f20","schema_version":"1.0","event_id":"sha256:9343b1a640113c5b6ec63ce9e2393804920f5065f6ab9ec4dde2004249bb9f20"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/bundle.json","state_url":"https://pith.science/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/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":"2026-05-26T20:42:59Z","links":{"resolver":"https://pith.science/pith/URQYOMAKWJKMQDWW3KA2OF3SQY","bundle":"https://pith.science/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/bundle.json","state":"https://pith.science/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/URQYOMAKWJKMQDWW3KA2OF3SQY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:URQYOMAKWJKMQDWW3KA2OF3SQY","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":"cb2411c9327d1ab776b9ebe26e58d4833b5a330a85af5bf4c7eb9178617c3b7e","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2003-01-23T08:06:38Z","title_canon_sha256":"8123661e0e689296d5ed3a816c1435ee2d6fe1db5a4f334a5e17fddc5a944442"},"schema_version":"1.0","source":{"id":"gr-qc/0301095","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0301095","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0301095v1","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0301095","created_at":"2026-05-18T01:39:23Z"},{"alias_kind":"pith_short_12","alias_value":"URQYOMAKWJKM","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"URQYOMAKWJKMQDWW","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"URQYOMAK","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:9343b1a640113c5b6ec63ce9e2393804920f5065f6ab9ec4dde2004249bb9f20","target":"graph","created_at":"2026-05-18T01:39:23Z","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 investigate a relativistic self-interacting gas in the field of an external {\\it pp} gravitational wave. Based on symmetry considerations we ask for those forces which are able to compensate the imprint of the gravitational wave on the macroscopic 4-acceleration of the gaseous fluid. We establish an exactly solvable toy model according to which the stationary states which characterize such a situation have negative entropy production and are accompanied by instabilities of the microscopic particle motion. These features are similar to those which one encounters in phenomena of self-organiza","authors_text":"Alexander B. Balakin (Kazan), Winfried Zimdahl (Konstanz)","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2003-01-23T08:06:38Z","title":"Self-interacting gas in a gravitational wave field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0301095","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:bef3bd4a575973fffe4ef997b5d9bfe633b75a539dde7b69e5969956f5a48d40","target":"record","created_at":"2026-05-18T01:39:23Z","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":"cb2411c9327d1ab776b9ebe26e58d4833b5a330a85af5bf4c7eb9178617c3b7e","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2003-01-23T08:06:38Z","title_canon_sha256":"8123661e0e689296d5ed3a816c1435ee2d6fe1db5a4f334a5e17fddc5a944442"},"schema_version":"1.0","source":{"id":"gr-qc/0301095","kind":"arxiv","version":1}},"canonical_sha256":"a46187300ab254c80ed6da81a7177286251ec852cb67e83d3156f3d18270a567","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a46187300ab254c80ed6da81a7177286251ec852cb67e83d3156f3d18270a567","first_computed_at":"2026-05-18T01:39:23.331861Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:39:23.331861Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NHZcayILZiTcB0s9YYos7f0znOG/Gqrikswite587naE3IuFqhElNhoTeacwnrhERZROIt2kyJIIzc8WO4ZkAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:39:23.332541Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0301095","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bef3bd4a575973fffe4ef997b5d9bfe633b75a539dde7b69e5969956f5a48d40","sha256:9343b1a640113c5b6ec63ce9e2393804920f5065f6ab9ec4dde2004249bb9f20"],"state_sha256":"390170ccea5189e4c9962830e61dd6dc346ddb6a5be0738b42bdc7d095d7c1be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jGsJXT6HymmgBitdsgVHXcQGm7xMZ5fVIBeb0cYRrmcecWJXyLMltj8zQxWAOO3mWxoMf9IgevyHIHah/miVAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T20:42:59.339916Z","bundle_sha256":"e56939bd15a0276c300714c5f1be3e5dd4495696026cf3b33da529ec02f28d98"}}