{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:3L6VZ6NEOAINTKMWRUOVYFBUG2","short_pith_number":"pith:3L6VZ6NE","schema_version":"1.0","canonical_sha256":"dafd5cf9a47010d9a9968d1d5c143436be9c6f6a5869f877d3a4e24754bb6433","source":{"kind":"arxiv","id":"1908.07823","version":2},"attestation_state":"computed","paper":{"title":"Sound waves move matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"physics.class-ph","authors_text":"Davison E. Soper","submitted_at":"2019-08-12T21:30:35Z","abstract_excerpt":"A recent Letter has reported that sound waves can carry gravitational mass. I analyze this effect in a Hooke's law solid, considering a wave packet moving in the $z$ direction with an amplitude that is independent of $x$ and $y$. The analysis shows that, at second order in an expansion around small amplitude vibrations, there is a small net motion of material, and thus mass, in the direction opposite to the wave packet propagation. This is a straightforward consequence of Newton's laws."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1908.07823","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2019-08-12T21:30:35Z","cross_cats_sorted":["gr-qc","hep-th"],"title_canon_sha256":"ff0af18f07c7d84bda4c5ebee17e4e94470ab84392935c9954cc20811e4a4b36","abstract_canon_sha256":"546be4d3a81531832c6fb68804ecf0a1917ddd830ae74b6660b8680f02d24d7c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:45:52.104790Z","signature_b64":"9aWYRx+3sg+1c4W4Wkxwusw5JZloOuBMQp0RvFV1QHkecTdCnL/mF8+CeKgvrvAGFvitjDMXEZGYgGl2MWJwAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dafd5cf9a47010d9a9968d1d5c143436be9c6f6a5869f877d3a4e24754bb6433","last_reissued_at":"2026-07-05T00:45:52.104332Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:45:52.104332Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sound waves move matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc","hep-th"],"primary_cat":"physics.class-ph","authors_text":"Davison E. Soper","submitted_at":"2019-08-12T21:30:35Z","abstract_excerpt":"A recent Letter has reported that sound waves can carry gravitational mass. I analyze this effect in a Hooke's law solid, considering a wave packet moving in the $z$ direction with an amplitude that is independent of $x$ and $y$. The analysis shows that, at second order in an expansion around small amplitude vibrations, there is a small net motion of material, and thus mass, in the direction opposite to the wave packet propagation. This is a straightforward consequence of Newton's laws."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.07823","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.07823/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1908.07823","created_at":"2026-07-05T00:45:52.104393+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.07823v2","created_at":"2026-07-05T00:45:52.104393+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.07823","created_at":"2026-07-05T00:45:52.104393+00:00"},{"alias_kind":"pith_short_12","alias_value":"3L6VZ6NEOAIN","created_at":"2026-07-05T00:45:52.104393+00:00"},{"alias_kind":"pith_short_16","alias_value":"3L6VZ6NEOAINTKMW","created_at":"2026-07-05T00:45:52.104393+00:00"},{"alias_kind":"pith_short_8","alias_value":"3L6VZ6NE","created_at":"2026-07-05T00:45:52.104393+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2","json":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2.json","graph_json":"https://pith.science/api/pith-number/3L6VZ6NEOAINTKMWRUOVYFBUG2/graph.json","events_json":"https://pith.science/api/pith-number/3L6VZ6NEOAINTKMWRUOVYFBUG2/events.json","paper":"https://pith.science/paper/3L6VZ6NE"},"agent_actions":{"view_html":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2","download_json":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2.json","view_paper":"https://pith.science/paper/3L6VZ6NE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.07823&json=true","fetch_graph":"https://pith.science/api/pith-number/3L6VZ6NEOAINTKMWRUOVYFBUG2/graph.json","fetch_events":"https://pith.science/api/pith-number/3L6VZ6NEOAINTKMWRUOVYFBUG2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2/action/storage_attestation","attest_author":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2/action/author_attestation","sign_citation":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2/action/citation_signature","submit_replication":"https://pith.science/pith/3L6VZ6NEOAINTKMWRUOVYFBUG2/action/replication_record"}},"created_at":"2026-07-05T00:45:52.104393+00:00","updated_at":"2026-07-05T00:45:52.104393+00:00"}