{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XWJOE2PUNB47Y3X7CBCN3HHYEV","short_pith_number":"pith:XWJOE2PU","canonical_record":{"source":{"id":"1510.04753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-10-16T01:08:55Z","cross_cats_sorted":[],"title_canon_sha256":"a9c8ac932668e3000a22f30d93d9e080e2fba5e6426dfeb96b4fd62700e39493","abstract_canon_sha256":"92afc1e1d4500d055eee0e2a203edba6dcb16e5a29a19de50ab3cb3ba2b2bce0"},"schema_version":"1.0"},"canonical_sha256":"bd92e269f46879fc6eff1044dd9cf82543c9b2b5b1e6347f121974a6b498ebab","source":{"kind":"arxiv","id":"1510.04753","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04753","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04753v1","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04753","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"XWJOE2PUNB47","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XWJOE2PUNB47Y3X7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XWJOE2PU","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XWJOE2PUNB47Y3X7CBCN3HHYEV","target":"record","payload":{"canonical_record":{"source":{"id":"1510.04753","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-10-16T01:08:55Z","cross_cats_sorted":[],"title_canon_sha256":"a9c8ac932668e3000a22f30d93d9e080e2fba5e6426dfeb96b4fd62700e39493","abstract_canon_sha256":"92afc1e1d4500d055eee0e2a203edba6dcb16e5a29a19de50ab3cb3ba2b2bce0"},"schema_version":"1.0"},"canonical_sha256":"bd92e269f46879fc6eff1044dd9cf82543c9b2b5b1e6347f121974a6b498ebab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:30:01.553522Z","signature_b64":"pnKqsaMaD2lhPy49gB3PYvpBC1T65vHaGnbxRAGi4MY4iIyt450awBfu6AExV3u6/PKTQswmakFcz4+IjTMyAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd92e269f46879fc6eff1044dd9cf82543c9b2b5b1e6347f121974a6b498ebab","last_reissued_at":"2026-05-18T01:30:01.552795Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:30:01.552795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.04753","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":"2026-05-18T01:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MFU6ydwuZA91xf/tXKfEDpTSW+EBP32MHSbcmuGpj203cwN7iL9Utk0+COUDAgISVvAu3XePrVecdVmPcIfxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:54:33.006776Z"},"content_sha256":"1b8e351a02f434ed7d259ccacd07c7e13c5ae893cd33f6cefa2400224d993503","schema_version":"1.0","event_id":"sha256:1b8e351a02f434ed7d259ccacd07c7e13c5ae893cd33f6cefa2400224d993503"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XWJOE2PUNB47Y3X7CBCN3HHYEV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exciting and Harvesting Vibrational States in Harmonically Driven Granular Chains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.PS","authors_text":"C. Chong, C. Daraio, E. G. Charalampidis, E. Kim, F. Li, H. Kim, J. Lydon, J. Yang, P. G. Kevrekidis","submitted_at":"2015-10-16T01:08:55Z","abstract_excerpt":"This article explores the excitation of different vibrational states in a spatially extended dynamical system through theory and experiment. As a prototypical example, we consider a one-dimensional packing of spherical particles (a so-called granular chain) that is subject to harmonic boundary excitation. The combination of the multi-modal nature of the system and the strong coupling between the particles due to the nonlinear Hertzian contact force leads to broad regions in frequency where different vibrational states are possible. In certain parametric regions, we demonstrate that the Nonline"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04753","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":"2026-05-18T01:30:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"86IPjKNnA0Wduz6xduyUqnvCqTcLB5cAP3NTPmYKNqhrYyFcxVF2AvcOUDamGkbDptYY2O394PABnS8Ye4sUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T06:54:33.007272Z"},"content_sha256":"9235dc9bde1e4239b89978456abc511e86a11313e230542acc994a0a495a0fcc","schema_version":"1.0","event_id":"sha256:9235dc9bde1e4239b89978456abc511e86a11313e230542acc994a0a495a0fcc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/bundle.json","state_url":"https://pith.science/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/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":"2026-06-03T06:54:33Z","links":{"resolver":"https://pith.science/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV","bundle":"https://pith.science/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/bundle.json","state":"https://pith.science/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XWJOE2PUNB47Y3X7CBCN3HHYEV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XWJOE2PUNB47Y3X7CBCN3HHYEV","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":"92afc1e1d4500d055eee0e2a203edba6dcb16e5a29a19de50ab3cb3ba2b2bce0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-10-16T01:08:55Z","title_canon_sha256":"a9c8ac932668e3000a22f30d93d9e080e2fba5e6426dfeb96b4fd62700e39493"},"schema_version":"1.0","source":{"id":"1510.04753","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04753","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04753v1","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04753","created_at":"2026-05-18T01:30:01Z"},{"alias_kind":"pith_short_12","alias_value":"XWJOE2PUNB47","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XWJOE2PUNB47Y3X7","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XWJOE2PU","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:9235dc9bde1e4239b89978456abc511e86a11313e230542acc994a0a495a0fcc","target":"graph","created_at":"2026-05-18T01:30:01Z","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":"This article explores the excitation of different vibrational states in a spatially extended dynamical system through theory and experiment. As a prototypical example, we consider a one-dimensional packing of spherical particles (a so-called granular chain) that is subject to harmonic boundary excitation. The combination of the multi-modal nature of the system and the strong coupling between the particles due to the nonlinear Hertzian contact force leads to broad regions in frequency where different vibrational states are possible. In certain parametric regions, we demonstrate that the Nonline","authors_text":"C. Chong, C. Daraio, E. G. Charalampidis, E. Kim, F. Li, H. Kim, J. Lydon, J. Yang, P. G. Kevrekidis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-10-16T01:08:55Z","title":"Exciting and Harvesting Vibrational States in Harmonically Driven Granular Chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04753","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":"sha256:1b8e351a02f434ed7d259ccacd07c7e13c5ae893cd33f6cefa2400224d993503","target":"record","created_at":"2026-05-18T01:30:01Z","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":"92afc1e1d4500d055eee0e2a203edba6dcb16e5a29a19de50ab3cb3ba2b2bce0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.PS","submitted_at":"2015-10-16T01:08:55Z","title_canon_sha256":"a9c8ac932668e3000a22f30d93d9e080e2fba5e6426dfeb96b4fd62700e39493"},"schema_version":"1.0","source":{"id":"1510.04753","kind":"arxiv","version":1}},"canonical_sha256":"bd92e269f46879fc6eff1044dd9cf82543c9b2b5b1e6347f121974a6b498ebab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bd92e269f46879fc6eff1044dd9cf82543c9b2b5b1e6347f121974a6b498ebab","first_computed_at":"2026-05-18T01:30:01.552795Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:30:01.552795Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pnKqsaMaD2lhPy49gB3PYvpBC1T65vHaGnbxRAGi4MY4iIyt450awBfu6AExV3u6/PKTQswmakFcz4+IjTMyAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:30:01.553522Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.04753","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b8e351a02f434ed7d259ccacd07c7e13c5ae893cd33f6cefa2400224d993503","sha256:9235dc9bde1e4239b89978456abc511e86a11313e230542acc994a0a495a0fcc"],"state_sha256":"88eedbbb3bcc0e96358fa4762745023e51452ccedef1623623af903a92ac7f6d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"doPP3h74qkRX3axJhuvrogvfp7PtDj1/H7AoDjiL8P2+IEiPF1noaWRVaJNM0m5Z9SBfS+CQT/Se1fv7xqrWCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T06:54:33.009270Z","bundle_sha256":"d501061b2f6068c2e0f88005032dddb762150b994774f9e3382c48fdfb193c8a"}}