{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YDFXFBMWYV5TOKDSX5PVZYK4EX","short_pith_number":"pith:YDFXFBMW","canonical_record":{"source":{"id":"1704.00907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-04-04T07:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"3f774cb1ccc939eb82566faefda37eda30610e725df1387c9098275df6a1540f","abstract_canon_sha256":"9cfbe27af306fbfa405c4ba57711951f475480768c3668a12b3699c0f6c56c99"},"schema_version":"1.0"},"canonical_sha256":"c0cb728596c57b372872bf5f5ce15c25d6deb40684401e852a19ec1c04330c99","source":{"kind":"arxiv","id":"1704.00907","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00907","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00907v1","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00907","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"pith_short_12","alias_value":"YDFXFBMWYV5T","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YDFXFBMWYV5TOKDS","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YDFXFBMW","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YDFXFBMWYV5TOKDSX5PVZYK4EX","target":"record","payload":{"canonical_record":{"source":{"id":"1704.00907","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-04-04T07:53:16Z","cross_cats_sorted":[],"title_canon_sha256":"3f774cb1ccc939eb82566faefda37eda30610e725df1387c9098275df6a1540f","abstract_canon_sha256":"9cfbe27af306fbfa405c4ba57711951f475480768c3668a12b3699c0f6c56c99"},"schema_version":"1.0"},"canonical_sha256":"c0cb728596c57b372872bf5f5ce15c25d6deb40684401e852a19ec1c04330c99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:18.976177Z","signature_b64":"PhG+obw1drFHWJYGEF0H05FSbXjTfCcgNT8GPG7cV4A4BkStlHlyftfmsW+lJBWMJ5mAYdoeohl+Y/XSH6fECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c0cb728596c57b372872bf5f5ce15c25d6deb40684401e852a19ec1c04330c99","last_reissued_at":"2026-05-18T00:33:18.975532Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:18.975532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.00907","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":"2026-05-18T00:33:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+puoPI32ZQ1FLYz+/5bP4y81bn8bwS9A3ZReUBkUn3oNLDNCm0EUmEP4V8Ekf7LpNU372OBK4o5rS3VFi4smDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T08:26:04.923843Z"},"content_sha256":"e6d6ce02f78d9cc458dc0e1c326b2fcd514745c7c9a610319ab3ef1c2830d45e","schema_version":"1.0","event_id":"sha256:e6d6ce02f78d9cc458dc0e1c326b2fcd514745c7c9a610319ab3ef1c2830d45e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YDFXFBMWYV5TOKDSX5PVZYK4EX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Excitation of multiple 2-mode parametric resonances by a single driven mode","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.PS","authors_text":"Adarsh Ganesan, Ashwin Seshia, Cuong Do","submitted_at":"2017-04-04T07:53:16Z","abstract_excerpt":"We demonstrate autoparametric excitation of two distinct sub-harmonic mechanical modes by the same driven mechanical mode corresponding to different drive frequencies within its resonance dispersion band. This experimental observation is used to motivate a more general physical picture wherein multiple mechanical modes could be excited by the same driven primary mode within the same device as long as the frequency spacing between the sub-harmonic modes is less than half the dispersion bandwidth of the driven primary mode. The excitation of both modes is seen to be threshold-dependent and a par"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00907","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":"2026-05-18T00:33:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OjCxuI0iATNa7FMkD42a8FFQrlaPa/yPAdBLh3UujDACNsvmeQG49WBSt7H/Iv1JH1phaV51Tb1Ii1wUoK0TDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T08:26:04.924203Z"},"content_sha256":"42656bae2c7236aa92e9375a2da39face8257932ca0ae9059f95ee47113cdceb","schema_version":"1.0","event_id":"sha256:42656bae2c7236aa92e9375a2da39face8257932ca0ae9059f95ee47113cdceb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/bundle.json","state_url":"https://pith.science/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/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":"2026-06-01T08:26:04Z","links":{"resolver":"https://pith.science/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX","bundle":"https://pith.science/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/bundle.json","state":"https://pith.science/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YDFXFBMWYV5TOKDSX5PVZYK4EX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YDFXFBMWYV5TOKDSX5PVZYK4EX","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":"9cfbe27af306fbfa405c4ba57711951f475480768c3668a12b3699c0f6c56c99","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-04-04T07:53:16Z","title_canon_sha256":"3f774cb1ccc939eb82566faefda37eda30610e725df1387c9098275df6a1540f"},"schema_version":"1.0","source":{"id":"1704.00907","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.00907","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"arxiv_version","alias_value":"1704.00907v1","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00907","created_at":"2026-05-18T00:33:18Z"},{"alias_kind":"pith_short_12","alias_value":"YDFXFBMWYV5T","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YDFXFBMWYV5TOKDS","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YDFXFBMW","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:42656bae2c7236aa92e9375a2da39face8257932ca0ae9059f95ee47113cdceb","target":"graph","created_at":"2026-05-18T00:33:18Z","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 demonstrate autoparametric excitation of two distinct sub-harmonic mechanical modes by the same driven mechanical mode corresponding to different drive frequencies within its resonance dispersion band. This experimental observation is used to motivate a more general physical picture wherein multiple mechanical modes could be excited by the same driven primary mode within the same device as long as the frequency spacing between the sub-harmonic modes is less than half the dispersion bandwidth of the driven primary mode. The excitation of both modes is seen to be threshold-dependent and a par","authors_text":"Adarsh Ganesan, Ashwin Seshia, Cuong Do","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-04-04T07:53:16Z","title":"Excitation of multiple 2-mode parametric resonances by a single driven mode"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00907","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:e6d6ce02f78d9cc458dc0e1c326b2fcd514745c7c9a610319ab3ef1c2830d45e","target":"record","created_at":"2026-05-18T00:33:18Z","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":"9cfbe27af306fbfa405c4ba57711951f475480768c3668a12b3699c0f6c56c99","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2017-04-04T07:53:16Z","title_canon_sha256":"3f774cb1ccc939eb82566faefda37eda30610e725df1387c9098275df6a1540f"},"schema_version":"1.0","source":{"id":"1704.00907","kind":"arxiv","version":1}},"canonical_sha256":"c0cb728596c57b372872bf5f5ce15c25d6deb40684401e852a19ec1c04330c99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c0cb728596c57b372872bf5f5ce15c25d6deb40684401e852a19ec1c04330c99","first_computed_at":"2026-05-18T00:33:18.975532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:18.975532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PhG+obw1drFHWJYGEF0H05FSbXjTfCcgNT8GPG7cV4A4BkStlHlyftfmsW+lJBWMJ5mAYdoeohl+Y/XSH6fECg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:18.976177Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.00907","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e6d6ce02f78d9cc458dc0e1c326b2fcd514745c7c9a610319ab3ef1c2830d45e","sha256:42656bae2c7236aa92e9375a2da39face8257932ca0ae9059f95ee47113cdceb"],"state_sha256":"7cb1bdb9c2938d100e7d1dd8bc913d2be02c137826e631baf871f3fd74696a5a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7umJKCI+TcNdaNpWMAeCXgU5Kofa+JcxeL9SgA1jmvNcHSZ88gLgjggIUdlMffU7yI4y0by3wWkLRXV7D9AVAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T08:26:04.926047Z","bundle_sha256":"c90e795482f618057beb8b6b05e2935be13b10ea2be9275ba1b77ac099af0664"}}