{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XVTE536DYO4MSP2255F6S5CGIB","short_pith_number":"pith:XVTE536D","canonical_record":{"source":{"id":"1311.0787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-11-04T17:42:09Z","cross_cats_sorted":[],"title_canon_sha256":"3ca5f78df027ba39bc7780a82ebfcfdac86772b788433412c61b65aed917c786","abstract_canon_sha256":"0a5028d71b7eb97b40851387dff441d15e1c221b19b618fa37bb3e35672d0e1b"},"schema_version":"1.0"},"canonical_sha256":"bd664eefc3c3b8c93f5aef4be974464052761ba1e87b29fbd55d8a39e562feb2","source":{"kind":"arxiv","id":"1311.0787","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0787","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0787v1","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0787","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"pith_short_12","alias_value":"XVTE536DYO4M","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XVTE536DYO4MSP22","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XVTE536D","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XVTE536DYO4MSP2255F6S5CGIB","target":"record","payload":{"canonical_record":{"source":{"id":"1311.0787","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-11-04T17:42:09Z","cross_cats_sorted":[],"title_canon_sha256":"3ca5f78df027ba39bc7780a82ebfcfdac86772b788433412c61b65aed917c786","abstract_canon_sha256":"0a5028d71b7eb97b40851387dff441d15e1c221b19b618fa37bb3e35672d0e1b"},"schema_version":"1.0"},"canonical_sha256":"bd664eefc3c3b8c93f5aef4be974464052761ba1e87b29fbd55d8a39e562feb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:08:04.835082Z","signature_b64":"E5s8i1puxfoHf1ifT9ShaYLVCqS5CqSnqG11bCqoNYSWOqJXIMiKu1EY/s2+YZopFwbbsiWYUaQlJ00dGNu+Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd664eefc3c3b8c93f5aef4be974464052761ba1e87b29fbd55d8a39e562feb2","last_reissued_at":"2026-05-18T03:08:04.834409Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:08:04.834409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.0787","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":"2026-05-18T03:08:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tk+X2bZMAcNd4g4n3r1WSNQf9dsQLxWKyHGSaSnL415o9OwyaFe9F7DEICgYaZfPE9Z/aDt06+tFxhccJniBCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:17.377548Z"},"content_sha256":"fe0a4e73a34c9d9ca17cd2978525273c43c5081974bae2eb11eaafbc778e4c19","schema_version":"1.0","event_id":"sha256:fe0a4e73a34c9d9ca17cd2978525273c43c5081974bae2eb11eaafbc778e4c19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XVTE536DYO4MSP2255F6S5CGIB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Distributed Construction of a Collision-Free Schedule in WLANs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Azadeh Faridi, Boris Bellalta, David Malone, Gabriel Martorell, Jaume Barcelo","submitted_at":"2013-11-04T17:42:09Z","abstract_excerpt":"In wireless local area networks (WLANs), a media access protocol arbitrates access to the channel. In current IEEE 802.11 WLANs, carrier sense multiple access with collision avoidance (CSMA/CA) is used. Carrier sense multiple access with enhanced collision avoidance (CSMA/ECA) is a subtle variant of the well-known CSMA/CA algorithm that offers substantial performance benefits. CSMA/ECA significantly reduces the collision probability and, under certain conditions, leads to a completely collision-free schedule. The only difference between CSMA/CA and CSMA/ECA is that the latter uses a determinis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0787","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":"2026-05-18T03:08:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bjmVSOLEncUg8P/KkMrQ/toUr3FyyMPPfdvb2AYTrEWttX1ZOyZ1F/LolWoolUovyJ8TSBxhqJVzJXn6O3u8BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:17.377893Z"},"content_sha256":"05d6f57aa5e8ce24a23f95353b3c18ff38625e7e6cfa34cecdcc0cbb19ec914b","schema_version":"1.0","event_id":"sha256:05d6f57aa5e8ce24a23f95353b3c18ff38625e7e6cfa34cecdcc0cbb19ec914b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XVTE536DYO4MSP2255F6S5CGIB/bundle.json","state_url":"https://pith.science/pith/XVTE536DYO4MSP2255F6S5CGIB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XVTE536DYO4MSP2255F6S5CGIB/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":"2026-05-30T12:04:17Z","links":{"resolver":"https://pith.science/pith/XVTE536DYO4MSP2255F6S5CGIB","bundle":"https://pith.science/pith/XVTE536DYO4MSP2255F6S5CGIB/bundle.json","state":"https://pith.science/pith/XVTE536DYO4MSP2255F6S5CGIB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XVTE536DYO4MSP2255F6S5CGIB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XVTE536DYO4MSP2255F6S5CGIB","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":"0a5028d71b7eb97b40851387dff441d15e1c221b19b618fa37bb3e35672d0e1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-11-04T17:42:09Z","title_canon_sha256":"3ca5f78df027ba39bc7780a82ebfcfdac86772b788433412c61b65aed917c786"},"schema_version":"1.0","source":{"id":"1311.0787","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0787","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0787v1","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0787","created_at":"2026-05-18T03:08:04Z"},{"alias_kind":"pith_short_12","alias_value":"XVTE536DYO4M","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XVTE536DYO4MSP22","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XVTE536D","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:05d6f57aa5e8ce24a23f95353b3c18ff38625e7e6cfa34cecdcc0cbb19ec914b","target":"graph","created_at":"2026-05-18T03:08:04Z","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 wireless local area networks (WLANs), a media access protocol arbitrates access to the channel. In current IEEE 802.11 WLANs, carrier sense multiple access with collision avoidance (CSMA/CA) is used. Carrier sense multiple access with enhanced collision avoidance (CSMA/ECA) is a subtle variant of the well-known CSMA/CA algorithm that offers substantial performance benefits. CSMA/ECA significantly reduces the collision probability and, under certain conditions, leads to a completely collision-free schedule. The only difference between CSMA/CA and CSMA/ECA is that the latter uses a determinis","authors_text":"Azadeh Faridi, Boris Bellalta, David Malone, Gabriel Martorell, Jaume Barcelo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-11-04T17:42:09Z","title":"On the Distributed Construction of a Collision-Free Schedule in WLANs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0787","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:fe0a4e73a34c9d9ca17cd2978525273c43c5081974bae2eb11eaafbc778e4c19","target":"record","created_at":"2026-05-18T03:08:04Z","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":"0a5028d71b7eb97b40851387dff441d15e1c221b19b618fa37bb3e35672d0e1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2013-11-04T17:42:09Z","title_canon_sha256":"3ca5f78df027ba39bc7780a82ebfcfdac86772b788433412c61b65aed917c786"},"schema_version":"1.0","source":{"id":"1311.0787","kind":"arxiv","version":1}},"canonical_sha256":"bd664eefc3c3b8c93f5aef4be974464052761ba1e87b29fbd55d8a39e562feb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bd664eefc3c3b8c93f5aef4be974464052761ba1e87b29fbd55d8a39e562feb2","first_computed_at":"2026-05-18T03:08:04.834409Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:04.834409Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E5s8i1puxfoHf1ifT9ShaYLVCqS5CqSnqG11bCqoNYSWOqJXIMiKu1EY/s2+YZopFwbbsiWYUaQlJ00dGNu+Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:04.835082Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.0787","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe0a4e73a34c9d9ca17cd2978525273c43c5081974bae2eb11eaafbc778e4c19","sha256:05d6f57aa5e8ce24a23f95353b3c18ff38625e7e6cfa34cecdcc0cbb19ec914b"],"state_sha256":"52445e90a13b5027638debbdde6c6970dfeffbb32b7330030c84aa52929e0165"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zyCAAHqb8M1zTM8CjfGF9g+abGo1Zngz6RqWQLAyI5UOVKte8o/Nqg1hY/hUqPcm73iJQc2fWoOi4AUBcSZfBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T12:04:17.380486Z","bundle_sha256":"6300a0749c3c10d902f203e12d2ff500e2ce74bab28a5c516c9d1c6e9dfb1d34"}}