{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:GKJFY65XDJTMYXGWIRL5WIP54H","short_pith_number":"pith:GKJFY65X","canonical_record":{"source":{"id":"1706.05375","kind":"arxiv","version":8},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2017-06-17T17:21:55Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"0328e6ed3950e4c1b97bdc84fd6256a5a684cd2544a4c37ce72971544075619d","abstract_canon_sha256":"e3c9e580a6f999b2a5d2d2e876036135f228e2e131a5caff6cf68c08443aa6bc"},"schema_version":"1.0"},"canonical_sha256":"32925c7bb71a66cc5cd64457db21fde1ef2f723030e3a3cb12a177a40e2f8941","source":{"kind":"arxiv","id":"1706.05375","version":8},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05375","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05375v8","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05375","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"pith_short_12","alias_value":"GKJFY65XDJTM","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GKJFY65XDJTMYXGW","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GKJFY65X","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:GKJFY65XDJTMYXGWIRL5WIP54H","target":"record","payload":{"canonical_record":{"source":{"id":"1706.05375","kind":"arxiv","version":8},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2017-06-17T17:21:55Z","cross_cats_sorted":["physics.app-ph"],"title_canon_sha256":"0328e6ed3950e4c1b97bdc84fd6256a5a684cd2544a4c37ce72971544075619d","abstract_canon_sha256":"e3c9e580a6f999b2a5d2d2e876036135f228e2e131a5caff6cf68c08443aa6bc"},"schema_version":"1.0"},"canonical_sha256":"32925c7bb71a66cc5cd64457db21fde1ef2f723030e3a3cb12a177a40e2f8941","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:30:28.102510Z","signature_b64":"CHHZfrp74RtdQcD/kM8PrLNwvsUyv02rDr9HQBcsbaq7jO3sj3sceHuHETPP9rNBpISQUxG9JaT4i8Vy/XFoAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"32925c7bb71a66cc5cd64457db21fde1ef2f723030e3a3cb12a177a40e2f8941","last_reissued_at":"2026-05-18T00:30:28.101816Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:30:28.101816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.05375","source_version":8,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:30:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IbeHI51u9fhfzGxMhZunxPfds5nx7brtE+gI5/i6uj3Di8GlQUbZDphVOgUUuoUerIVkQ76etjdxzM6gQw4JBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:26:43.671571Z"},"content_sha256":"76dd8190254f0b5f676dd82e9c296778eb1d721e1faf0410d1a5b8b44ac11997","schema_version":"1.0","event_id":"sha256:76dd8190254f0b5f676dd82e9c296778eb1d721e1faf0410d1a5b8b44ac11997"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:GKJFY65XDJTMYXGWIRL5WIP54H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Problem On The Acoustic Cloak By $0$ to $R_1$ Transformation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph"],"primary_cat":"physics.class-ph","authors_text":"Feng Xie, Ganquan Xie, Jianhua Li, Lee Xie","submitted_at":"2017-06-17T17:21:55Z","abstract_excerpt":"The $0$ to $R_1$ radial spherical coordinate transformation method can be making electromagnetic (EM) invisible cloak. However the cloak by transformation optic has infinite speed and exceeding light speed etc fundamental difficulties. In this paper, we discover problem on acoustic cloak by transformation and prove that in the $0$ to $R_1$ radial spherical coordinate transformation, the pressure wave field $P(r_p)=P(r)$ is invariant, in the physical inner spherical surface boundary $r=R_1$, $P(R_1)$ is not zero. the acoustic field propagation penetrate into the inner sphere $r < R_1$.Therefore"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05375","kind":"arxiv","version":8},"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":"2026-05-18T00:30:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CQwrJzLj/cfs4H1nGkfcncdOcdCNWCxZb6COgycfGrx6VK4KbgZjfKPejX9Fv5Swr74ahlt/zlY+7yTPo9zKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:26:43.672218Z"},"content_sha256":"ed138dbe8a3219f0c7ff424593d8b36ec7f14a109492c6362ec24beaaa933caa","schema_version":"1.0","event_id":"sha256:ed138dbe8a3219f0c7ff424593d8b36ec7f14a109492c6362ec24beaaa933caa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GKJFY65XDJTMYXGWIRL5WIP54H/bundle.json","state_url":"https://pith.science/pith/GKJFY65XDJTMYXGWIRL5WIP54H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GKJFY65XDJTMYXGWIRL5WIP54H/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":"2026-05-26T02:26:43Z","links":{"resolver":"https://pith.science/pith/GKJFY65XDJTMYXGWIRL5WIP54H","bundle":"https://pith.science/pith/GKJFY65XDJTMYXGWIRL5WIP54H/bundle.json","state":"https://pith.science/pith/GKJFY65XDJTMYXGWIRL5WIP54H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GKJFY65XDJTMYXGWIRL5WIP54H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:GKJFY65XDJTMYXGWIRL5WIP54H","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":"e3c9e580a6f999b2a5d2d2e876036135f228e2e131a5caff6cf68c08443aa6bc","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2017-06-17T17:21:55Z","title_canon_sha256":"0328e6ed3950e4c1b97bdc84fd6256a5a684cd2544a4c37ce72971544075619d"},"schema_version":"1.0","source":{"id":"1706.05375","kind":"arxiv","version":8}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.05375","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"arxiv_version","alias_value":"1706.05375v8","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.05375","created_at":"2026-05-18T00:30:28Z"},{"alias_kind":"pith_short_12","alias_value":"GKJFY65XDJTM","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"GKJFY65XDJTMYXGW","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"GKJFY65X","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:ed138dbe8a3219f0c7ff424593d8b36ec7f14a109492c6362ec24beaaa933caa","target":"graph","created_at":"2026-05-18T00:30:28Z","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":"The $0$ to $R_1$ radial spherical coordinate transformation method can be making electromagnetic (EM) invisible cloak. However the cloak by transformation optic has infinite speed and exceeding light speed etc fundamental difficulties. In this paper, we discover problem on acoustic cloak by transformation and prove that in the $0$ to $R_1$ radial spherical coordinate transformation, the pressure wave field $P(r_p)=P(r)$ is invariant, in the physical inner spherical surface boundary $r=R_1$, $P(R_1)$ is not zero. the acoustic field propagation penetrate into the inner sphere $r < R_1$.Therefore","authors_text":"Feng Xie, Ganquan Xie, Jianhua Li, Lee Xie","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2017-06-17T17:21:55Z","title":"Problem On The Acoustic Cloak By $0$ to $R_1$ Transformation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.05375","kind":"arxiv","version":8},"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":"sha256:76dd8190254f0b5f676dd82e9c296778eb1d721e1faf0410d1a5b8b44ac11997","target":"record","created_at":"2026-05-18T00:30:28Z","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":"e3c9e580a6f999b2a5d2d2e876036135f228e2e131a5caff6cf68c08443aa6bc","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2017-06-17T17:21:55Z","title_canon_sha256":"0328e6ed3950e4c1b97bdc84fd6256a5a684cd2544a4c37ce72971544075619d"},"schema_version":"1.0","source":{"id":"1706.05375","kind":"arxiv","version":8}},"canonical_sha256":"32925c7bb71a66cc5cd64457db21fde1ef2f723030e3a3cb12a177a40e2f8941","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"32925c7bb71a66cc5cd64457db21fde1ef2f723030e3a3cb12a177a40e2f8941","first_computed_at":"2026-05-18T00:30:28.101816Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:30:28.101816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CHHZfrp74RtdQcD/kM8PrLNwvsUyv02rDr9HQBcsbaq7jO3sj3sceHuHETPP9rNBpISQUxG9JaT4i8Vy/XFoAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:30:28.102510Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.05375","source_kind":"arxiv","source_version":8}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:76dd8190254f0b5f676dd82e9c296778eb1d721e1faf0410d1a5b8b44ac11997","sha256:ed138dbe8a3219f0c7ff424593d8b36ec7f14a109492c6362ec24beaaa933caa"],"state_sha256":"3e544babbbab3bc8ea9f3ed33ae5a56b3bded44a49f2a648c36d5eff241f07ee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uoVL639Kh4pYiiAU+9UV5XU7GR56cYNneAErpWhdiQCe7E5tU+s12lU0nAq4LHP49hkhcEk8HKe0kRX7qkD5CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:26:43.675794Z","bundle_sha256":"37e965a6606f1970a5d30972986556c1e7f90be1951a2ba4d39b36f833d7a238"}}