{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:B4IIR2CMJW457TZAPJ2K3EZ36Z","short_pith_number":"pith:B4IIR2CM","schema_version":"1.0","canonical_sha256":"0f1088e84c4db9dfcf207a74ad933bf6451f74834ebc31ea6c6d6097da492b6a","source":{"kind":"arxiv","id":"1803.08655","version":1},"attestation_state":"computed","paper":{"title":"Tunable fluid-solid metamaterials for manipulation of elastic wave propagation in broad frequency range","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Gengkai Hu, Kai Zhang, Quan Zhang","submitted_at":"2018-03-23T04:33:58Z","abstract_excerpt":"Current strategies for designing tunable locally resonant metamaterials are based on tuning the stiffness of the resonator; however, this approach presents a major shortcoming as the effective mass density is constant at high frequency. Here, this paper reports a type of tunable locally elastic metamaterial-'called tunable fluid-solid composite'-inspired by the functions of heart and vessels in animals and humans. The proposed metamaterial consists of several liquid or gas inclusions in a solid matrix, controlled through a pair of embedded pumps. Both the band gap and effective mass density at"},"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":"1803.08655","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-03-23T04:33:58Z","cross_cats_sorted":[],"title_canon_sha256":"1405625902b5ef5dec3530fdb65a97e70bb38f11741301f4e1a57255a1690b19","abstract_canon_sha256":"3643f5d2d8d6a4487a9d7a525a94d92806b600fdde46e4d30911f3b69ffdd623"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:35.206968Z","signature_b64":"vniK2wSWUSgEzHN5EgigdPD0x26P5MatpbK1koX0KW16hwviKUNbZnsAfXpIqh6YRihlrzQmaAGFLIOG84I0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f1088e84c4db9dfcf207a74ad933bf6451f74834ebc31ea6c6d6097da492b6a","last_reissued_at":"2026-05-18T00:11:35.206350Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:35.206350Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tunable fluid-solid metamaterials for manipulation of elastic wave propagation in broad frequency range","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"Gengkai Hu, Kai Zhang, Quan Zhang","submitted_at":"2018-03-23T04:33:58Z","abstract_excerpt":"Current strategies for designing tunable locally resonant metamaterials are based on tuning the stiffness of the resonator; however, this approach presents a major shortcoming as the effective mass density is constant at high frequency. Here, this paper reports a type of tunable locally elastic metamaterial-'called tunable fluid-solid composite'-inspired by the functions of heart and vessels in animals and humans. The proposed metamaterial consists of several liquid or gas inclusions in a solid matrix, controlled through a pair of embedded pumps. Both the band gap and effective mass density at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08655","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1803.08655","created_at":"2026-05-18T00:11:35.206470+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.08655v1","created_at":"2026-05-18T00:11:35.206470+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08655","created_at":"2026-05-18T00:11:35.206470+00:00"},{"alias_kind":"pith_short_12","alias_value":"B4IIR2CMJW45","created_at":"2026-05-18T12:32:13.499390+00:00"},{"alias_kind":"pith_short_16","alias_value":"B4IIR2CMJW457TZA","created_at":"2026-05-18T12:32:13.499390+00:00"},{"alias_kind":"pith_short_8","alias_value":"B4IIR2CM","created_at":"2026-05-18T12:32:13.499390+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/B4IIR2CMJW457TZAPJ2K3EZ36Z","json":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z.json","graph_json":"https://pith.science/api/pith-number/B4IIR2CMJW457TZAPJ2K3EZ36Z/graph.json","events_json":"https://pith.science/api/pith-number/B4IIR2CMJW457TZAPJ2K3EZ36Z/events.json","paper":"https://pith.science/paper/B4IIR2CM"},"agent_actions":{"view_html":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z","download_json":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z.json","view_paper":"https://pith.science/paper/B4IIR2CM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.08655&json=true","fetch_graph":"https://pith.science/api/pith-number/B4IIR2CMJW457TZAPJ2K3EZ36Z/graph.json","fetch_events":"https://pith.science/api/pith-number/B4IIR2CMJW457TZAPJ2K3EZ36Z/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z/action/timestamp_anchor","attest_storage":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z/action/storage_attestation","attest_author":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z/action/author_attestation","sign_citation":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z/action/citation_signature","submit_replication":"https://pith.science/pith/B4IIR2CMJW457TZAPJ2K3EZ36Z/action/replication_record"}},"created_at":"2026-05-18T00:11:35.206470+00:00","updated_at":"2026-05-18T00:11:35.206470+00:00"}