{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YG7KHMT2Z33FE33XH6OU7Z2HOB","short_pith_number":"pith:YG7KHMT2","canonical_record":{"source":{"id":"1303.2072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-03-08T18:21:23Z","cross_cats_sorted":[],"title_canon_sha256":"a084883cdb8376c48ceb8e9bec25716f7918278bfc510610edf7884e840993dd","abstract_canon_sha256":"93dd09f6089db81e0d9ddcd220eee30bf0ed6cab256fff6b3c1ee8d325d9897b"},"schema_version":"1.0"},"canonical_sha256":"c1bea3b27acef6526f773f9d4fe74770644e41be204f9ee38e2b5d36980b047b","source":{"kind":"arxiv","id":"1303.2072","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2072","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2072v1","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2072","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"pith_short_12","alias_value":"YG7KHMT2Z33F","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YG7KHMT2Z33FE33X","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YG7KHMT2","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YG7KHMT2Z33FE33XH6OU7Z2HOB","target":"record","payload":{"canonical_record":{"source":{"id":"1303.2072","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-03-08T18:21:23Z","cross_cats_sorted":[],"title_canon_sha256":"a084883cdb8376c48ceb8e9bec25716f7918278bfc510610edf7884e840993dd","abstract_canon_sha256":"93dd09f6089db81e0d9ddcd220eee30bf0ed6cab256fff6b3c1ee8d325d9897b"},"schema_version":"1.0"},"canonical_sha256":"c1bea3b27acef6526f773f9d4fe74770644e41be204f9ee38e2b5d36980b047b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:31.444475Z","signature_b64":"WJe3eQQoEM36Qm+1tzuWSudQp0QknDuN4GWlro7TD73b13TLSYpy+Zn4k1Lv/pXDz3FEPPnGhLSkBQ5wtRxgDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1bea3b27acef6526f773f9d4fe74770644e41be204f9ee38e2b5d36980b047b","last_reissued_at":"2026-05-18T03:31:31.443822Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:31.443822Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.2072","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":"2026-05-18T03:31:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wnzTsIRcnKEefnjJUQUehO/jF5V8Gh9MTAFlrW5BF4yjWxoShVkgKtaejttbSVJ6NwfxCw0iokgUuerSSLJPAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:31:17.777086Z"},"content_sha256":"a31f5ca6838708cefaa73aad7bcb5d585f677d8fd0f059e2aeca897d57949f88","schema_version":"1.0","event_id":"sha256:a31f5ca6838708cefaa73aad7bcb5d585f677d8fd0f059e2aeca897d57949f88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YG7KHMT2Z33FE33XH6OU7Z2HOB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy Efficient MAC Protocols in Wireless Body Area Sensor Networks -A Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"M. A. Khan, M. Shakir, N. Javaid, S. Hayat, S. H. Bouk, Z. A. Khan","submitted_at":"2013-03-08T18:21:23Z","abstract_excerpt":"In this paper, we first presented an analytically discussion about energy efficiency of Medium Access Control (MAC) protocols for Wireless Body Area Sensor Networks (WBASNs). For this purpose, different energy efficient MAC protocols with their respective energy optimization techniques; Low Power Listening (LPL), Scheduled Contention and Time Division Multiple Access (TDMA), are elaborated. We also analytically compared path loss models for In-body, On-body and Off-body communications in WBASNs. These three path loss scenarios are simulated in MATLAB and results shown that path loss is more in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2072","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":"2026-05-18T03:31:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pm+qRv4p4eAVagON4qREY/nMs1n6w73IL4FNd2+CzHD2E98x6gduOGYoAVENJX3iZi3vZy2vHOjZdXHD7c8CDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:31:17.777721Z"},"content_sha256":"2e2d3f35e06fcf0105128cceea832c3f1d059511ce233ba44c0807b32aedeb77","schema_version":"1.0","event_id":"sha256:2e2d3f35e06fcf0105128cceea832c3f1d059511ce233ba44c0807b32aedeb77"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/bundle.json","state_url":"https://pith.science/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/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":"2026-05-26T16:31:17Z","links":{"resolver":"https://pith.science/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB","bundle":"https://pith.science/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/bundle.json","state":"https://pith.science/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YG7KHMT2Z33FE33XH6OU7Z2HOB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YG7KHMT2Z33FE33XH6OU7Z2HOB","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":"93dd09f6089db81e0d9ddcd220eee30bf0ed6cab256fff6b3c1ee8d325d9897b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-03-08T18:21:23Z","title_canon_sha256":"a084883cdb8376c48ceb8e9bec25716f7918278bfc510610edf7884e840993dd"},"schema_version":"1.0","source":{"id":"1303.2072","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.2072","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"arxiv_version","alias_value":"1303.2072v1","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.2072","created_at":"2026-05-18T03:31:31Z"},{"alias_kind":"pith_short_12","alias_value":"YG7KHMT2Z33F","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YG7KHMT2Z33FE33X","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YG7KHMT2","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:2e2d3f35e06fcf0105128cceea832c3f1d059511ce233ba44c0807b32aedeb77","target":"graph","created_at":"2026-05-18T03:31:31Z","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 paper, we first presented an analytically discussion about energy efficiency of Medium Access Control (MAC) protocols for Wireless Body Area Sensor Networks (WBASNs). For this purpose, different energy efficient MAC protocols with their respective energy optimization techniques; Low Power Listening (LPL), Scheduled Contention and Time Division Multiple Access (TDMA), are elaborated. We also analytically compared path loss models for In-body, On-body and Off-body communications in WBASNs. These three path loss scenarios are simulated in MATLAB and results shown that path loss is more in","authors_text":"M. A. Khan, M. Shakir, N. Javaid, S. Hayat, S. H. Bouk, Z. A. Khan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-03-08T18:21:23Z","title":"Energy Efficient MAC Protocols in Wireless Body Area Sensor Networks -A Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.2072","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:a31f5ca6838708cefaa73aad7bcb5d585f677d8fd0f059e2aeca897d57949f88","target":"record","created_at":"2026-05-18T03:31:31Z","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":"93dd09f6089db81e0d9ddcd220eee30bf0ed6cab256fff6b3c1ee8d325d9897b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-03-08T18:21:23Z","title_canon_sha256":"a084883cdb8376c48ceb8e9bec25716f7918278bfc510610edf7884e840993dd"},"schema_version":"1.0","source":{"id":"1303.2072","kind":"arxiv","version":1}},"canonical_sha256":"c1bea3b27acef6526f773f9d4fe74770644e41be204f9ee38e2b5d36980b047b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1bea3b27acef6526f773f9d4fe74770644e41be204f9ee38e2b5d36980b047b","first_computed_at":"2026-05-18T03:31:31.443822Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:31.443822Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WJe3eQQoEM36Qm+1tzuWSudQp0QknDuN4GWlro7TD73b13TLSYpy+Zn4k1Lv/pXDz3FEPPnGhLSkBQ5wtRxgDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:31.444475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.2072","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a31f5ca6838708cefaa73aad7bcb5d585f677d8fd0f059e2aeca897d57949f88","sha256:2e2d3f35e06fcf0105128cceea832c3f1d059511ce233ba44c0807b32aedeb77"],"state_sha256":"b799e1c62f60fb47d597e82dca8d0327c6079c0dd37e32739ca5948f9c48d812"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ipX+H6G8jhT3f9TwqbrNpP1Vm2bTRxUyO+2FGM+GhNTSv5uctptdYHpapevgw43cDQxnN/63/jZOQoqwDIwYCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T16:31:17.781101Z","bundle_sha256":"b3d4b7a2b3e9986549be3618fabd6f977e74413d07db7e1c36b32cecb5d267cf"}}