{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:G5SBCIOE7ZJ6FLQPR42PHZ7QXE","short_pith_number":"pith:G5SBCIOE","canonical_record":{"source":{"id":"1804.01577","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-04T19:20:40Z","cross_cats_sorted":[],"title_canon_sha256":"969a101bdeeda113659ab3a20e4f6dbd4a0f8e189c4f398d93bf918853e3ca81","abstract_canon_sha256":"72abba4456bd723db23b437aa1caa95c5737570845c18778f15126a6cdb87d46"},"schema_version":"1.0"},"canonical_sha256":"37641121c4fe53e2ae0f8f34f3e7f0b91f514faa0dec7a42f5034aca2911d2b3","source":{"kind":"arxiv","id":"1804.01577","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01577","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01577v1","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01577","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"pith_short_12","alias_value":"G5SBCIOE7ZJ6","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5SBCIOE7ZJ6FLQP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5SBCIOE","created_at":"2026-05-18T12:32:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:G5SBCIOE7ZJ6FLQPR42PHZ7QXE","target":"record","payload":{"canonical_record":{"source":{"id":"1804.01577","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-04T19:20:40Z","cross_cats_sorted":[],"title_canon_sha256":"969a101bdeeda113659ab3a20e4f6dbd4a0f8e189c4f398d93bf918853e3ca81","abstract_canon_sha256":"72abba4456bd723db23b437aa1caa95c5737570845c18778f15126a6cdb87d46"},"schema_version":"1.0"},"canonical_sha256":"37641121c4fe53e2ae0f8f34f3e7f0b91f514faa0dec7a42f5034aca2911d2b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:10.832965Z","signature_b64":"GQ+6dkS+yvNSvysu+HDYpZNZrAI8Wub4t9/2NTLuKSP2MEK9SAHlgwWs0GVA6RscwptwJ+BJxEEu0VuFxM+qCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"37641121c4fe53e2ae0f8f34f3e7f0b91f514faa0dec7a42f5034aca2911d2b3","last_reissued_at":"2026-05-18T00:19:10.832145Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:10.832145Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.01577","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":"2026-05-18T00:19:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xdIDtK6uGmnziq1aaZHQ9gUWjkvu3LwGuyEJf1nhanypOttLzlFxn+gYu2YIdi0MeCJs2FpZrBFVX129lyo9Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:31:54.844511Z"},"content_sha256":"8b882a93a9c0e5b6bcfcaee18c0657d79422882b6878e9083c134e325c4bce0c","schema_version":"1.0","event_id":"sha256:8b882a93a9c0e5b6bcfcaee18c0657d79422882b6878e9083c134e325c4bce0c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:G5SBCIOE7ZJ6FLQPR42PHZ7QXE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Antenna Systems for Wireless Capsule Endoscope: Design, Analysis and Experimental Validation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Ahsan Noor khan, Clemens Icheln, Katsuyuki Haneda, Ken-ichi Takizawa, Md. Suzan Miah","submitted_at":"2018-04-04T19:20:40Z","abstract_excerpt":"Wireless capsule endoscopy (WCE) systems are used to capture images of the human digestive tract for medical applications. The antenna is one of the most important components in a WCE system. In this paper, we provide novel small antenna solutions for a WCE system operating at the 433 MHz ISM band. The in-body capsule transmitter uses an ultrawideband outer-wall conformal loop antenna, whereas the on-body receiver uses a printed monopole antenna with a partial ground plane. A colon-equivalent tissue phantom and CST Gustav voxel human body model were used for the numerical studies of the capsul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01577","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":"2026-05-18T00:19:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u6dXqkh7oJwipQ/IPWV/CS3QuKuoYW4gGA4884d9t3M8fQM2TWOuIajqK5WWl29dR3nOpsRPeUKTyi+tVQEBAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T15:31:54.844856Z"},"content_sha256":"b5fef8c7113bb3f64601199c653acca1895285005be56825a3b5ff51e9ac3554","schema_version":"1.0","event_id":"sha256:b5fef8c7113bb3f64601199c653acca1895285005be56825a3b5ff51e9ac3554"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/bundle.json","state_url":"https://pith.science/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/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":"2026-06-27T15:31:54Z","links":{"resolver":"https://pith.science/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE","bundle":"https://pith.science/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/bundle.json","state":"https://pith.science/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G5SBCIOE7ZJ6FLQPR42PHZ7QXE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:G5SBCIOE7ZJ6FLQPR42PHZ7QXE","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":"72abba4456bd723db23b437aa1caa95c5737570845c18778f15126a6cdb87d46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-04T19:20:40Z","title_canon_sha256":"969a101bdeeda113659ab3a20e4f6dbd4a0f8e189c4f398d93bf918853e3ca81"},"schema_version":"1.0","source":{"id":"1804.01577","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01577","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01577v1","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01577","created_at":"2026-05-18T00:19:10Z"},{"alias_kind":"pith_short_12","alias_value":"G5SBCIOE7ZJ6","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"G5SBCIOE7ZJ6FLQP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"G5SBCIOE","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:b5fef8c7113bb3f64601199c653acca1895285005be56825a3b5ff51e9ac3554","target":"graph","created_at":"2026-05-18T00:19:10Z","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":"Wireless capsule endoscopy (WCE) systems are used to capture images of the human digestive tract for medical applications. The antenna is one of the most important components in a WCE system. In this paper, we provide novel small antenna solutions for a WCE system operating at the 433 MHz ISM band. The in-body capsule transmitter uses an ultrawideband outer-wall conformal loop antenna, whereas the on-body receiver uses a printed monopole antenna with a partial ground plane. A colon-equivalent tissue phantom and CST Gustav voxel human body model were used for the numerical studies of the capsul","authors_text":"Ahsan Noor khan, Clemens Icheln, Katsuyuki Haneda, Ken-ichi Takizawa, Md. Suzan Miah","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-04T19:20:40Z","title":"Antenna Systems for Wireless Capsule Endoscope: Design, Analysis and Experimental Validation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01577","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":"sha256:8b882a93a9c0e5b6bcfcaee18c0657d79422882b6878e9083c134e325c4bce0c","target":"record","created_at":"2026-05-18T00:19:10Z","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":"72abba4456bd723db23b437aa1caa95c5737570845c18778f15126a6cdb87d46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2018-04-04T19:20:40Z","title_canon_sha256":"969a101bdeeda113659ab3a20e4f6dbd4a0f8e189c4f398d93bf918853e3ca81"},"schema_version":"1.0","source":{"id":"1804.01577","kind":"arxiv","version":1}},"canonical_sha256":"37641121c4fe53e2ae0f8f34f3e7f0b91f514faa0dec7a42f5034aca2911d2b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"37641121c4fe53e2ae0f8f34f3e7f0b91f514faa0dec7a42f5034aca2911d2b3","first_computed_at":"2026-05-18T00:19:10.832145Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:10.832145Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GQ+6dkS+yvNSvysu+HDYpZNZrAI8Wub4t9/2NTLuKSP2MEK9SAHlgwWs0GVA6RscwptwJ+BJxEEu0VuFxM+qCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:10.832965Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.01577","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b882a93a9c0e5b6bcfcaee18c0657d79422882b6878e9083c134e325c4bce0c","sha256:b5fef8c7113bb3f64601199c653acca1895285005be56825a3b5ff51e9ac3554"],"state_sha256":"6624176fa1bad1dbaeaa9627138845115d86a5530ba7f60d7a4bb8adc7c21a1c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UBIGcRpRvafxViCNvB5qbyGWXafUsOn7f0Xr1eNDfe0gHo+seqkoxS3GURSgoVkRyz6UoyRQebLUqvm4uqvWDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T15:31:54.846762Z","bundle_sha256":"fe3a66912555aeb71b559b706f38e72528d21e4a3d3854dae8e52057b56ebf59"}}