{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:2AOLUI2CDPK6XYEW3NWFB75AXB","short_pith_number":"pith:2AOLUI2C","canonical_record":{"source":{"id":"nlin/0502042","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nlin.CD","submitted_at":"2005-02-18T17:10:45Z","cross_cats_sorted":[],"title_canon_sha256":"2583d197f4cd82ba33d185445e317c7f4668e77446388358804e88287f4029be","abstract_canon_sha256":"f99e244c1a3141ec35b7a9326b4e5647e29df682c678cd8edc1a0fb021fcca5b"},"schema_version":"1.0"},"canonical_sha256":"d01cba23421bd5ebe096db6c50ffa0b87de95c46c68f4967231c9e0f1afb8e4d","source":{"kind":"arxiv","id":"nlin/0502042","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nlin/0502042","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"arxiv_version","alias_value":"nlin/0502042v1","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nlin/0502042","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"pith_short_12","alias_value":"2AOLUI2CDPK6","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"2AOLUI2CDPK6XYEW","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"2AOLUI2C","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:2AOLUI2CDPK6XYEW3NWFB75AXB","target":"record","payload":{"canonical_record":{"source":{"id":"nlin/0502042","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"nlin.CD","submitted_at":"2005-02-18T17:10:45Z","cross_cats_sorted":[],"title_canon_sha256":"2583d197f4cd82ba33d185445e317c7f4668e77446388358804e88287f4029be","abstract_canon_sha256":"f99e244c1a3141ec35b7a9326b4e5647e29df682c678cd8edc1a0fb021fcca5b"},"schema_version":"1.0"},"canonical_sha256":"d01cba23421bd5ebe096db6c50ffa0b87de95c46c68f4967231c9e0f1afb8e4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:05:21.795273Z","signature_b64":"QpBJhwpPybep8MgzSPjvlg+KZz2HrMub7E3TvcPuBAW9jUed3zPvxMm2SMqpWwYtRl1XBszE93kEj9AOO1xWCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d01cba23421bd5ebe096db6c50ffa0b87de95c46c68f4967231c9e0f1afb8e4d","last_reissued_at":"2026-05-18T01:05:21.794827Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:05:21.794827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"nlin/0502042","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":"2026-05-18T01:05:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D3XL3r+ztAiHFBd3ws39d/ehqZkggH/3nu42HfnxA3O6AkV6teRyRDRphmzz5A6dfI6dsyMeFHox7qMfQCBpCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:51:59.699710Z"},"content_sha256":"d6a44e8abcde21e0fbfebbdf53b2deb80b39884ab4082b5ef402897a55218e2f","schema_version":"1.0","event_id":"sha256:d6a44e8abcde21e0fbfebbdf53b2deb80b39884ab4082b5ef402897a55218e2f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:2AOLUI2CDPK6XYEW3NWFB75AXB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nonlinear dynamics and chaos in parametric sound generation","license":"","headline":"","cross_cats":[],"primary_cat":"nlin.CD","authors_text":"Javier Redondo, Jesus Alba, Victor Espinosa, Victor J. Sanchez-Morcillo","submitted_at":"2005-02-18T17:10:45Z","abstract_excerpt":"A theoretical analysis of the subharmonic generation process in an acoustical resonator (interferometer) with plane walls is performed. It is shown that, when both the pumping wave and the generated subharmonic are detuned with respect to the resonator modes, the fields can display complex temporal behaviour such as self-pulsing and chaos. A discussion about the acoustical parameters required for the experimental observation of the phenomenon is given."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nlin/0502042","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":"2026-05-18T01:05:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ilNZZpiaUMeJANV2ZmJKUj3PBojnzC+FGKONYCLM1GYKQqlOdVJdV1MLOOerCQ0xlaCpgEmctSYlOkWJ0CWJBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:51:59.700049Z"},"content_sha256":"ceb8fc51b6224dedbce01a08e55c95fe329ad8e6742936123498585a600806d5","schema_version":"1.0","event_id":"sha256:ceb8fc51b6224dedbce01a08e55c95fe329ad8e6742936123498585a600806d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/bundle.json","state_url":"https://pith.science/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/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":"2026-06-05T13:51:59Z","links":{"resolver":"https://pith.science/pith/2AOLUI2CDPK6XYEW3NWFB75AXB","bundle":"https://pith.science/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/bundle.json","state":"https://pith.science/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2AOLUI2CDPK6XYEW3NWFB75AXB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:2AOLUI2CDPK6XYEW3NWFB75AXB","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":"f99e244c1a3141ec35b7a9326b4e5647e29df682c678cd8edc1a0fb021fcca5b","cross_cats_sorted":[],"license":"","primary_cat":"nlin.CD","submitted_at":"2005-02-18T17:10:45Z","title_canon_sha256":"2583d197f4cd82ba33d185445e317c7f4668e77446388358804e88287f4029be"},"schema_version":"1.0","source":{"id":"nlin/0502042","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"nlin/0502042","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"arxiv_version","alias_value":"nlin/0502042v1","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.nlin/0502042","created_at":"2026-05-18T01:05:21Z"},{"alias_kind":"pith_short_12","alias_value":"2AOLUI2CDPK6","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"2AOLUI2CDPK6XYEW","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"2AOLUI2C","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:ceb8fc51b6224dedbce01a08e55c95fe329ad8e6742936123498585a600806d5","target":"graph","created_at":"2026-05-18T01:05:21Z","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":"A theoretical analysis of the subharmonic generation process in an acoustical resonator (interferometer) with plane walls is performed. It is shown that, when both the pumping wave and the generated subharmonic are detuned with respect to the resonator modes, the fields can display complex temporal behaviour such as self-pulsing and chaos. A discussion about the acoustical parameters required for the experimental observation of the phenomenon is given.","authors_text":"Javier Redondo, Jesus Alba, Victor Espinosa, Victor J. Sanchez-Morcillo","cross_cats":[],"headline":"","license":"","primary_cat":"nlin.CD","submitted_at":"2005-02-18T17:10:45Z","title":"Nonlinear dynamics and chaos in parametric sound generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nlin/0502042","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:d6a44e8abcde21e0fbfebbdf53b2deb80b39884ab4082b5ef402897a55218e2f","target":"record","created_at":"2026-05-18T01:05:21Z","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":"f99e244c1a3141ec35b7a9326b4e5647e29df682c678cd8edc1a0fb021fcca5b","cross_cats_sorted":[],"license":"","primary_cat":"nlin.CD","submitted_at":"2005-02-18T17:10:45Z","title_canon_sha256":"2583d197f4cd82ba33d185445e317c7f4668e77446388358804e88287f4029be"},"schema_version":"1.0","source":{"id":"nlin/0502042","kind":"arxiv","version":1}},"canonical_sha256":"d01cba23421bd5ebe096db6c50ffa0b87de95c46c68f4967231c9e0f1afb8e4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d01cba23421bd5ebe096db6c50ffa0b87de95c46c68f4967231c9e0f1afb8e4d","first_computed_at":"2026-05-18T01:05:21.794827Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:05:21.794827Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QpBJhwpPybep8MgzSPjvlg+KZz2HrMub7E3TvcPuBAW9jUed3zPvxMm2SMqpWwYtRl1XBszE93kEj9AOO1xWCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:05:21.795273Z","signed_message":"canonical_sha256_bytes"},"source_id":"nlin/0502042","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6a44e8abcde21e0fbfebbdf53b2deb80b39884ab4082b5ef402897a55218e2f","sha256:ceb8fc51b6224dedbce01a08e55c95fe329ad8e6742936123498585a600806d5"],"state_sha256":"074030af3e99d26b9af0457ff72d6b8b5b058db17e18e4537aeb8e5a619791d0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GurESPqlDvQYesQZIVpvqRxXrFu0DDQfBDDrE7m6oFHuSeSXPLwFeeuLQOLiLBKkDFHPp32qfys+XSvr0CIZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T13:51:59.701973Z","bundle_sha256":"65efa614388db45c91115fa8f761485d873167906f9d80d8ba4ab289139b6352"}}