{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:27B2VQAIYBKGPPUUCXM25ZACWI","short_pith_number":"pith:27B2VQAI","canonical_record":{"source":{"id":"1303.7284","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2013-03-29T02:12:48Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"691b00ec0447534ba259c60afb71466592a4b972537d08a370ee28536fc37165","abstract_canon_sha256":"facc5cc47effe44f0a4638e17e107c14c50084ed0af4e7b7e69466fd8d38c67f"},"schema_version":"1.0"},"canonical_sha256":"d7c3aac008c05467be9415d9aee402b20e778216e8c375b97ed991839cd8ebd8","source":{"kind":"arxiv","id":"1303.7284","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.7284","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"1303.7284v1","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.7284","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"27B2VQAIYBKG","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"27B2VQAIYBKGPPUU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"27B2VQAI","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:27B2VQAIYBKGPPUUCXM25ZACWI","target":"record","payload":{"canonical_record":{"source":{"id":"1303.7284","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2013-03-29T02:12:48Z","cross_cats_sorted":["physics.flu-dyn"],"title_canon_sha256":"691b00ec0447534ba259c60afb71466592a4b972537d08a370ee28536fc37165","abstract_canon_sha256":"facc5cc47effe44f0a4638e17e107c14c50084ed0af4e7b7e69466fd8d38c67f"},"schema_version":"1.0"},"canonical_sha256":"d7c3aac008c05467be9415d9aee402b20e778216e8c375b97ed991839cd8ebd8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:19.609857Z","signature_b64":"QUdyAqUYhMGmifKEEteisZ4Svq3lHd9f4eQSCTDVJrGM+mvac4tjQnAyFrnyDvpcd4cYcdc98ciPZyHD3iQUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d7c3aac008c05467be9415d9aee402b20e778216e8c375b97ed991839cd8ebd8","last_reissued_at":"2026-05-18T00:49:19.609404Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:19.609404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.7284","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":"2026-05-18T00:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/ksPxh81xxmt3uWUmvDBo+Ipdo9Q+CwyKiVfX0GJDnFK8sbi9IUF5iKqcM3PVDofvO0nHmJKlRlUDGGEpbaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T20:38:35.512088Z"},"content_sha256":"9351f2a6ef046538094ffce46b708d03b2d876a35482f734a1f3a5e6b2c82dd4","schema_version":"1.0","event_id":"sha256:9351f2a6ef046538094ffce46b708d03b2d876a35482f734a1f3a5e6b2c82dd4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:27B2VQAIYBKGPPUUCXM25ZACWI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wave-wave interactions and deep ocean acoustics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.flu-dyn"],"primary_cat":"physics.ao-ph","authors_text":"John Bourdelais, William Farrell, Xavier Zabalgogeazcoa, Zachary Guralnik","submitted_at":"2013-03-29T02:12:48Z","abstract_excerpt":"Deep ocean acoustics, in the absence of shipping and wildlife, is driven by surface processes. Best understood is the signal generated by non-linear surface wave interactions, the Longuet-Higgins mechanism, which dominates from 0.1 to 10 Hz, and may be significant for another octave. For this source, the spectral matrix of pressure and vector velocity is derived for points near the bottom of a deep ocean resting on an elastic half-space. In the absence of a bottom, the ratios of matrix elements are universal constants. Bottom effects vitiate the usual \"standing wave approximation,\" but a weake"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.7284","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":"2026-05-18T00:49:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0GhIKqeAXLMcqcwXe2e3WUnxVib7lP9+7D5K2nyZ9kmA4BCjrIppv2VLaJf7iH52wGs8sEiQ7YdmLMUf+IeGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T20:38:35.512439Z"},"content_sha256":"d04005ac34e7cad697b1f241ad0489980e4d59c1fde073932889e1c9d9dcbbdf","schema_version":"1.0","event_id":"sha256:d04005ac34e7cad697b1f241ad0489980e4d59c1fde073932889e1c9d9dcbbdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/27B2VQAIYBKGPPUUCXM25ZACWI/bundle.json","state_url":"https://pith.science/pith/27B2VQAIYBKGPPUUCXM25ZACWI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/27B2VQAIYBKGPPUUCXM25ZACWI/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":"2026-06-28T20:38:35Z","links":{"resolver":"https://pith.science/pith/27B2VQAIYBKGPPUUCXM25ZACWI","bundle":"https://pith.science/pith/27B2VQAIYBKGPPUUCXM25ZACWI/bundle.json","state":"https://pith.science/pith/27B2VQAIYBKGPPUUCXM25ZACWI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/27B2VQAIYBKGPPUUCXM25ZACWI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:27B2VQAIYBKGPPUUCXM25ZACWI","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":"facc5cc47effe44f0a4638e17e107c14c50084ed0af4e7b7e69466fd8d38c67f","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2013-03-29T02:12:48Z","title_canon_sha256":"691b00ec0447534ba259c60afb71466592a4b972537d08a370ee28536fc37165"},"schema_version":"1.0","source":{"id":"1303.7284","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.7284","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"arxiv_version","alias_value":"1303.7284v1","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.7284","created_at":"2026-05-18T00:49:19Z"},{"alias_kind":"pith_short_12","alias_value":"27B2VQAIYBKG","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"27B2VQAIYBKGPPUU","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"27B2VQAI","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:d04005ac34e7cad697b1f241ad0489980e4d59c1fde073932889e1c9d9dcbbdf","target":"graph","created_at":"2026-05-18T00:49:19Z","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":"Deep ocean acoustics, in the absence of shipping and wildlife, is driven by surface processes. Best understood is the signal generated by non-linear surface wave interactions, the Longuet-Higgins mechanism, which dominates from 0.1 to 10 Hz, and may be significant for another octave. For this source, the spectral matrix of pressure and vector velocity is derived for points near the bottom of a deep ocean resting on an elastic half-space. In the absence of a bottom, the ratios of matrix elements are universal constants. Bottom effects vitiate the usual \"standing wave approximation,\" but a weake","authors_text":"John Bourdelais, William Farrell, Xavier Zabalgogeazcoa, Zachary Guralnik","cross_cats":["physics.flu-dyn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2013-03-29T02:12:48Z","title":"Wave-wave interactions and deep ocean acoustics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.7284","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":"sha256:9351f2a6ef046538094ffce46b708d03b2d876a35482f734a1f3a5e6b2c82dd4","target":"record","created_at":"2026-05-18T00:49:19Z","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":"facc5cc47effe44f0a4638e17e107c14c50084ed0af4e7b7e69466fd8d38c67f","cross_cats_sorted":["physics.flu-dyn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ao-ph","submitted_at":"2013-03-29T02:12:48Z","title_canon_sha256":"691b00ec0447534ba259c60afb71466592a4b972537d08a370ee28536fc37165"},"schema_version":"1.0","source":{"id":"1303.7284","kind":"arxiv","version":1}},"canonical_sha256":"d7c3aac008c05467be9415d9aee402b20e778216e8c375b97ed991839cd8ebd8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d7c3aac008c05467be9415d9aee402b20e778216e8c375b97ed991839cd8ebd8","first_computed_at":"2026-05-18T00:49:19.609404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:19.609404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QUdyAqUYhMGmifKEEteisZ4Svq3lHd9f4eQSCTDVJrGM+mvac4tjQnAyFrnyDvpcd4cYcdc98ciPZyHD3iQUDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:19.609857Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.7284","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9351f2a6ef046538094ffce46b708d03b2d876a35482f734a1f3a5e6b2c82dd4","sha256:d04005ac34e7cad697b1f241ad0489980e4d59c1fde073932889e1c9d9dcbbdf"],"state_sha256":"0f864804eb4c0a6affd1e3ab20e8fe41ee65b1c1da9980c5a1a749dc4a29fefe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w9wGAGXzeUbX0KjMBPZTD6owubB87EOm8NlYuCuj76Bzw6Izoi3eQAwJU9jIZnLvEsskM65bnRuWdc1Xo4EUCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T20:38:35.514547Z","bundle_sha256":"ff8b69f6753b566e2dc2eb7e49f7815d297c4d069e623fcdfb9483460cd26f83"}}