{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:LXDJBOVU4NGYJ7NNG4C7MJWLGB","short_pith_number":"pith:LXDJBOVU","canonical_record":{"source":{"id":"1204.2882","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.NI","submitted_at":"2012-04-13T05:05:30Z","cross_cats_sorted":[],"title_canon_sha256":"552d6dbeb0a30be64e45202188efe3452953c01dbd0a22217831a5c94c55d0e6","abstract_canon_sha256":"c318f07cab046ed074aa261efca78a1af706a84c811d2b4781a5c23cd22b7c20"},"schema_version":"1.0"},"canonical_sha256":"5dc690bab4e34d84fdad3705f626cb3074870b53bdfb71578984cda0cee69961","source":{"kind":"arxiv","id":"1204.2882","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.2882","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"arxiv_version","alias_value":"1204.2882v1","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2882","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"pith_short_12","alias_value":"LXDJBOVU4NGY","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LXDJBOVU4NGYJ7NN","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LXDJBOVU","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:LXDJBOVU4NGYJ7NNG4C7MJWLGB","target":"record","payload":{"canonical_record":{"source":{"id":"1204.2882","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.NI","submitted_at":"2012-04-13T05:05:30Z","cross_cats_sorted":[],"title_canon_sha256":"552d6dbeb0a30be64e45202188efe3452953c01dbd0a22217831a5c94c55d0e6","abstract_canon_sha256":"c318f07cab046ed074aa261efca78a1af706a84c811d2b4781a5c23cd22b7c20"},"schema_version":"1.0"},"canonical_sha256":"5dc690bab4e34d84fdad3705f626cb3074870b53bdfb71578984cda0cee69961","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:02.605635Z","signature_b64":"d0OlKUeGRbc7bbI/OYOW9VRQOrsvFnm5PIFwrtkuRO2aYhJnRjLIiBoswU++YgsZBGaSFwg5ejWBiOGZg2iIBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5dc690bab4e34d84fdad3705f626cb3074870b53bdfb71578984cda0cee69961","last_reissued_at":"2026-05-18T03:58:02.605048Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:02.605048Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.2882","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":"2026-05-18T03:58:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ufCIqYBQTaOBH/OMLfEuzD69qSsM0BaPNFlX1DyjX0obUn8TN1/ExyY3/mCaB3NV3vd0VfSxl0ma5D+MGivGCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T16:24:11.573917Z"},"content_sha256":"c13f99213ad25c21ed239506522a2aceae2b7395370c81b325e231ffe646b15a","schema_version":"1.0","event_id":"sha256:c13f99213ad25c21ed239506522a2aceae2b7395370c81b325e231ffe646b15a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:LXDJBOVU4NGYJ7NNG4C7MJWLGB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Designing an Energy Efficient Framework for Data Gathering in Wireless Sensor Network","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Abhishek Bhattacharyya, Amitava Mukherjee, Anand Seetharam, Mrinal.K.Naskar, Subhabrata Mukherjee","submitted_at":"2012-04-13T05:05:30Z","abstract_excerpt":"Wireless sensor network (WSN) is a collection of nodes which can communicate with each other without any prior infrastructure along with the ability to collect data autonomously and effectively after being deployed in an ad-hoc fashion to monitor a given area. One major problem encountered in data gathering wireless systems is to obtain an optimal balance among the number of nodes deployed, energy efficiency and lifetime as energy of nodes cannot be replenished. In this paper we propose first a scheme to estimate the number of nodes to be deployed in a WSN for a predetermined lifetime so that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2882","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":"2026-05-18T03:58:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F7heW5ltfd758h6J808tcLmew5yV8ud/bqmuvcW83Uv8JEnAP4b96QSh2/t68a7cZQW1me/JVsAZrRB1LkdkAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T16:24:11.574270Z"},"content_sha256":"ca59befa280999567432b9d0a376c5ada05cd25dff00b935b04e5b6df763234e","schema_version":"1.0","event_id":"sha256:ca59befa280999567432b9d0a376c5ada05cd25dff00b935b04e5b6df763234e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/bundle.json","state_url":"https://pith.science/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/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":"2026-06-26T16:24:11Z","links":{"resolver":"https://pith.science/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB","bundle":"https://pith.science/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/bundle.json","state":"https://pith.science/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LXDJBOVU4NGYJ7NNG4C7MJWLGB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LXDJBOVU4NGYJ7NNG4C7MJWLGB","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":"c318f07cab046ed074aa261efca78a1af706a84c811d2b4781a5c23cd22b7c20","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.NI","submitted_at":"2012-04-13T05:05:30Z","title_canon_sha256":"552d6dbeb0a30be64e45202188efe3452953c01dbd0a22217831a5c94c55d0e6"},"schema_version":"1.0","source":{"id":"1204.2882","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.2882","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"arxiv_version","alias_value":"1204.2882v1","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2882","created_at":"2026-05-18T03:58:02Z"},{"alias_kind":"pith_short_12","alias_value":"LXDJBOVU4NGY","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LXDJBOVU4NGYJ7NN","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LXDJBOVU","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:ca59befa280999567432b9d0a376c5ada05cd25dff00b935b04e5b6df763234e","target":"graph","created_at":"2026-05-18T03:58:02Z","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 sensor network (WSN) is a collection of nodes which can communicate with each other without any prior infrastructure along with the ability to collect data autonomously and effectively after being deployed in an ad-hoc fashion to monitor a given area. One major problem encountered in data gathering wireless systems is to obtain an optimal balance among the number of nodes deployed, energy efficiency and lifetime as energy of nodes cannot be replenished. In this paper we propose first a scheme to estimate the number of nodes to be deployed in a WSN for a predetermined lifetime so that ","authors_text":"Abhishek Bhattacharyya, Amitava Mukherjee, Anand Seetharam, Mrinal.K.Naskar, Subhabrata Mukherjee","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.NI","submitted_at":"2012-04-13T05:05:30Z","title":"Designing an Energy Efficient Framework for Data Gathering in Wireless Sensor Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2882","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:c13f99213ad25c21ed239506522a2aceae2b7395370c81b325e231ffe646b15a","target":"record","created_at":"2026-05-18T03:58:02Z","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":"c318f07cab046ed074aa261efca78a1af706a84c811d2b4781a5c23cd22b7c20","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.NI","submitted_at":"2012-04-13T05:05:30Z","title_canon_sha256":"552d6dbeb0a30be64e45202188efe3452953c01dbd0a22217831a5c94c55d0e6"},"schema_version":"1.0","source":{"id":"1204.2882","kind":"arxiv","version":1}},"canonical_sha256":"5dc690bab4e34d84fdad3705f626cb3074870b53bdfb71578984cda0cee69961","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5dc690bab4e34d84fdad3705f626cb3074870b53bdfb71578984cda0cee69961","first_computed_at":"2026-05-18T03:58:02.605048Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:58:02.605048Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"d0OlKUeGRbc7bbI/OYOW9VRQOrsvFnm5PIFwrtkuRO2aYhJnRjLIiBoswU++YgsZBGaSFwg5ejWBiOGZg2iIBA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:58:02.605635Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.2882","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c13f99213ad25c21ed239506522a2aceae2b7395370c81b325e231ffe646b15a","sha256:ca59befa280999567432b9d0a376c5ada05cd25dff00b935b04e5b6df763234e"],"state_sha256":"1e804a01f0ed78b9c21334525c8910fc94c6096b108e49b6f6a72b5ec71cb83c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QDZg83lAYemXtQ8NlGM7hGUWaDR0BzwCllEYM/7ZUynfbV4bD14UKsXjSsujRa6T37dh0cFLMImBxjwGimJuCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T16:24:11.576296Z","bundle_sha256":"7a440af83df4676da2035031c9eaecdc23e0abc7b63d993780cab93fbe5bcb47"}}