{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:5XQEX34TFMKAGOHQAAD5CCGIO2","short_pith_number":"pith:5XQEX34T","canonical_record":{"source":{"id":"1802.02038","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2018-01-15T03:20:07Z","cross_cats_sorted":["cond-mat.mes-hall","physics.app-ph"],"title_canon_sha256":"7cee36991a8bcc0550a6a0c7fcb113cb56853b4f3e8fe9d081876470ac8b652a","abstract_canon_sha256":"05e0c69c46ce22c07a1a6ee7f43a0358beac7cb54d520f22bc5928935d585246"},"schema_version":"1.0"},"canonical_sha256":"ede04bef932b140338f00007d108c876a5fa5add554ae9cb3d009bc16ad2ac06","source":{"kind":"arxiv","id":"1802.02038","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02038","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02038v2","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02038","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"pith_short_12","alias_value":"5XQEX34TFMKA","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5XQEX34TFMKAGOHQ","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5XQEX34T","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:5XQEX34TFMKAGOHQAAD5CCGIO2","target":"record","payload":{"canonical_record":{"source":{"id":"1802.02038","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2018-01-15T03:20:07Z","cross_cats_sorted":["cond-mat.mes-hall","physics.app-ph"],"title_canon_sha256":"7cee36991a8bcc0550a6a0c7fcb113cb56853b4f3e8fe9d081876470ac8b652a","abstract_canon_sha256":"05e0c69c46ce22c07a1a6ee7f43a0358beac7cb54d520f22bc5928935d585246"},"schema_version":"1.0"},"canonical_sha256":"ede04bef932b140338f00007d108c876a5fa5add554ae9cb3d009bc16ad2ac06","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:08:10.378218Z","signature_b64":"Fnz5FkeJC5kKTPRbk7xP5MxUsDo3GYDD7NJ2i1dOSRGnBqlXlsEihD3XBtd39K2mP1kZY7HW12h7NhEZNAuWDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ede04bef932b140338f00007d108c876a5fa5add554ae9cb3d009bc16ad2ac06","last_reissued_at":"2026-05-18T00:08:10.377864Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:08:10.377864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.02038","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:08:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sPf72A2H1f9wHabBxQs1KDErPoP/2RZjInPPsWFTes1Qm2s5Zl+Dfix4vN+RTmzq++oKjEa39qqdgwNLfRI7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T18:22:52.260151Z"},"content_sha256":"ab7f031695b8b855894832becdeb65aaa55d5d69caaa8e9e862493c709242af8","schema_version":"1.0","event_id":"sha256:ab7f031695b8b855894832becdeb65aaa55d5d69caaa8e9e862493c709242af8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:5XQEX34TFMKAGOHQAAD5CCGIO2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Elastic Purcell effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.app-ph"],"primary_cat":"physics.class-ph","authors_text":"Christopher G. Poulton, L.G. Helt, Miko{\\l}aj K. Schmidt, M.J. Steel","submitted_at":"2018-01-15T03:20:07Z","abstract_excerpt":"In this work, we introduce an elastic analog of the Purcell effect and show theoretically that spherical nanoparticles can serve as tunable and robust antennas for modifying the emission from localized elastic sources. This effect can be qualitatively described by introducing elastic counterparts of the familiar electromagnetic parameters: local density of elastic states, elastic Purcell factor, and effective volume of elastic modes. To illustrate our framework, we consider the example of a submicron gold sphere as a generic elastic GHz antenna and find that shear and mixed modes of low orders"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02038","kind":"arxiv","version":2},"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":"2026-05-18T00:08:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/wV3VL5Z1DRVhx7ynaZnIAX0I1n+3WouaZuJvQLXALOopJ5YmmAd2OVovXX2SqKOErvyx7zg2d2lOW4KQ6bwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T18:22:52.260873Z"},"content_sha256":"55c8cc80829c258237d21f6f4838c396e2fd5e8d66a1456f4f7fd43ff9abe56d","schema_version":"1.0","event_id":"sha256:55c8cc80829c258237d21f6f4838c396e2fd5e8d66a1456f4f7fd43ff9abe56d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/bundle.json","state_url":"https://pith.science/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/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":"2026-05-29T18:22:52Z","links":{"resolver":"https://pith.science/pith/5XQEX34TFMKAGOHQAAD5CCGIO2","bundle":"https://pith.science/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/bundle.json","state":"https://pith.science/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5XQEX34TFMKAGOHQAAD5CCGIO2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:5XQEX34TFMKAGOHQAAD5CCGIO2","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":"05e0c69c46ce22c07a1a6ee7f43a0358beac7cb54d520f22bc5928935d585246","cross_cats_sorted":["cond-mat.mes-hall","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2018-01-15T03:20:07Z","title_canon_sha256":"7cee36991a8bcc0550a6a0c7fcb113cb56853b4f3e8fe9d081876470ac8b652a"},"schema_version":"1.0","source":{"id":"1802.02038","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.02038","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"arxiv_version","alias_value":"1802.02038v2","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.02038","created_at":"2026-05-18T00:08:10Z"},{"alias_kind":"pith_short_12","alias_value":"5XQEX34TFMKA","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"5XQEX34TFMKAGOHQ","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"5XQEX34T","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:55c8cc80829c258237d21f6f4838c396e2fd5e8d66a1456f4f7fd43ff9abe56d","target":"graph","created_at":"2026-05-18T00:08:10Z","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":"In this work, we introduce an elastic analog of the Purcell effect and show theoretically that spherical nanoparticles can serve as tunable and robust antennas for modifying the emission from localized elastic sources. This effect can be qualitatively described by introducing elastic counterparts of the familiar electromagnetic parameters: local density of elastic states, elastic Purcell factor, and effective volume of elastic modes. To illustrate our framework, we consider the example of a submicron gold sphere as a generic elastic GHz antenna and find that shear and mixed modes of low orders","authors_text":"Christopher G. Poulton, L.G. Helt, Miko{\\l}aj K. Schmidt, M.J. Steel","cross_cats":["cond-mat.mes-hall","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2018-01-15T03:20:07Z","title":"Elastic Purcell effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.02038","kind":"arxiv","version":2},"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:ab7f031695b8b855894832becdeb65aaa55d5d69caaa8e9e862493c709242af8","target":"record","created_at":"2026-05-18T00:08:10Z","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":"05e0c69c46ce22c07a1a6ee7f43a0358beac7cb54d520f22bc5928935d585246","cross_cats_sorted":["cond-mat.mes-hall","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2018-01-15T03:20:07Z","title_canon_sha256":"7cee36991a8bcc0550a6a0c7fcb113cb56853b4f3e8fe9d081876470ac8b652a"},"schema_version":"1.0","source":{"id":"1802.02038","kind":"arxiv","version":2}},"canonical_sha256":"ede04bef932b140338f00007d108c876a5fa5add554ae9cb3d009bc16ad2ac06","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ede04bef932b140338f00007d108c876a5fa5add554ae9cb3d009bc16ad2ac06","first_computed_at":"2026-05-18T00:08:10.377864Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:10.377864Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fnz5FkeJC5kKTPRbk7xP5MxUsDo3GYDD7NJ2i1dOSRGnBqlXlsEihD3XBtd39K2mP1kZY7HW12h7NhEZNAuWDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:10.378218Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.02038","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ab7f031695b8b855894832becdeb65aaa55d5d69caaa8e9e862493c709242af8","sha256:55c8cc80829c258237d21f6f4838c396e2fd5e8d66a1456f4f7fd43ff9abe56d"],"state_sha256":"13ff960749e7b8475d150108fd08e2c5925260d417d95b8f1b6459de273c43ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"adJNrysU20mfLX0cNAtO8oxx7sgIFNn6ejTGH923JzWS77NEO7IxFntYvPpLN5/AdRAh+tyAeobpeTISbImPCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T18:22:52.264823Z","bundle_sha256":"c1f4d95a0d0be50fb3f05005be60be31a809fbc9f150131d625e5ecd070454d4"}}