{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PHBVCFGCON7EC2HVG27G523BWN","short_pith_number":"pith:PHBVCFGC","canonical_record":{"source":{"id":"1309.1338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-09-05T12:51:39Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"4818c5a39a93c59e863527be693817faa717a91d5ac16c02e0e13df3e275a01d","abstract_canon_sha256":"a523484fc53d90b3c01a02242fdce8a4962e4b22a9ca6641f4be4c9502e5cdb1"},"schema_version":"1.0"},"canonical_sha256":"79c35114c2737e4168f536be6eeb61b3480acc7f953cdd97f6fccd182928ca7c","source":{"kind":"arxiv","id":"1309.1338","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1338","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1338v1","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1338","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"pith_short_12","alias_value":"PHBVCFGCON7E","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PHBVCFGCON7EC2HV","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PHBVCFGC","created_at":"2026-05-18T12:27:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PHBVCFGCON7EC2HVG27G523BWN","target":"record","payload":{"canonical_record":{"source":{"id":"1309.1338","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-09-05T12:51:39Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"4818c5a39a93c59e863527be693817faa717a91d5ac16c02e0e13df3e275a01d","abstract_canon_sha256":"a523484fc53d90b3c01a02242fdce8a4962e4b22a9ca6641f4be4c9502e5cdb1"},"schema_version":"1.0"},"canonical_sha256":"79c35114c2737e4168f536be6eeb61b3480acc7f953cdd97f6fccd182928ca7c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:03.797022Z","signature_b64":"tJZuen3ntS4ownYXDhFHcDG4enaB1C+QBxItgbEoRSaeBI+HHLAToLxVxrj+BisL354WAqLGpiHhfAExNzXWDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79c35114c2737e4168f536be6eeb61b3480acc7f953cdd97f6fccd182928ca7c","last_reissued_at":"2026-05-18T00:59:03.796362Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:03.796362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.1338","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":"2026-05-18T00:59:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ugYizRXhECc5fxrquWYokVCq55wohXrNfa8v2QgRMQ15WAUxKxOjNICemSU08ommfB5jWmiiM4CsWNQgHQg9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T10:03:11.306327Z"},"content_sha256":"dcac4c1e7ae4b6d152694832d1942089d2d673f9657e768106efae012481b6f9","schema_version":"1.0","event_id":"sha256:dcac4c1e7ae4b6d152694832d1942089d2d673f9657e768106efae012481b6f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PHBVCFGCON7EC2HVG27G523BWN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Stability Region of a Relay-Assisted Multiple Access Scheme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Anthony Ephremides, Apostolos Traganitis, Marios Kountouris, Nikolaos Pappas","submitted_at":"2013-09-05T12:51:39Z","abstract_excerpt":"In this paper we study the impact of a relay node in a two-user network. We assume a random access collision channel model with erasures. In particular we obtain an inner and an outer bound for the stability region."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1338","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":"2026-05-18T00:59:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mtf1swF4gkcbp+zhovU17giGpYrVoPB7PQxTx25Rj0v/p470/vBn+54k9jODva3vvDRR5izX3H25gL5iyn2QBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T10:03:11.306998Z"},"content_sha256":"4381cb12729bdb7ad59f0c5149096441855a2ebd5c783a8bdb081c1ea5dcff89","schema_version":"1.0","event_id":"sha256:4381cb12729bdb7ad59f0c5149096441855a2ebd5c783a8bdb081c1ea5dcff89"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PHBVCFGCON7EC2HVG27G523BWN/bundle.json","state_url":"https://pith.science/pith/PHBVCFGCON7EC2HVG27G523BWN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PHBVCFGCON7EC2HVG27G523BWN/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":"2026-06-06T10:03:11Z","links":{"resolver":"https://pith.science/pith/PHBVCFGCON7EC2HVG27G523BWN","bundle":"https://pith.science/pith/PHBVCFGCON7EC2HVG27G523BWN/bundle.json","state":"https://pith.science/pith/PHBVCFGCON7EC2HVG27G523BWN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PHBVCFGCON7EC2HVG27G523BWN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PHBVCFGCON7EC2HVG27G523BWN","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":"a523484fc53d90b3c01a02242fdce8a4962e4b22a9ca6641f4be4c9502e5cdb1","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-09-05T12:51:39Z","title_canon_sha256":"4818c5a39a93c59e863527be693817faa717a91d5ac16c02e0e13df3e275a01d"},"schema_version":"1.0","source":{"id":"1309.1338","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.1338","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"arxiv_version","alias_value":"1309.1338v1","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.1338","created_at":"2026-05-18T00:59:03Z"},{"alias_kind":"pith_short_12","alias_value":"PHBVCFGCON7E","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PHBVCFGCON7EC2HV","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PHBVCFGC","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:4381cb12729bdb7ad59f0c5149096441855a2ebd5c783a8bdb081c1ea5dcff89","target":"graph","created_at":"2026-05-18T00:59:03Z","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 study the impact of a relay node in a two-user network. We assume a random access collision channel model with erasures. In particular we obtain an inner and an outer bound for the stability region.","authors_text":"Anthony Ephremides, Apostolos Traganitis, Marios Kountouris, Nikolaos Pappas","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-09-05T12:51:39Z","title":"On the Stability Region of a Relay-Assisted Multiple Access Scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.1338","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:dcac4c1e7ae4b6d152694832d1942089d2d673f9657e768106efae012481b6f9","target":"record","created_at":"2026-05-18T00:59:03Z","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":"a523484fc53d90b3c01a02242fdce8a4962e4b22a9ca6641f4be4c9502e5cdb1","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2013-09-05T12:51:39Z","title_canon_sha256":"4818c5a39a93c59e863527be693817faa717a91d5ac16c02e0e13df3e275a01d"},"schema_version":"1.0","source":{"id":"1309.1338","kind":"arxiv","version":1}},"canonical_sha256":"79c35114c2737e4168f536be6eeb61b3480acc7f953cdd97f6fccd182928ca7c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79c35114c2737e4168f536be6eeb61b3480acc7f953cdd97f6fccd182928ca7c","first_computed_at":"2026-05-18T00:59:03.796362Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:03.796362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tJZuen3ntS4ownYXDhFHcDG4enaB1C+QBxItgbEoRSaeBI+HHLAToLxVxrj+BisL354WAqLGpiHhfAExNzXWDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:03.797022Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.1338","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcac4c1e7ae4b6d152694832d1942089d2d673f9657e768106efae012481b6f9","sha256:4381cb12729bdb7ad59f0c5149096441855a2ebd5c783a8bdb081c1ea5dcff89"],"state_sha256":"9dfe27ae93eda2812f3d60632f4f3d296de614b2eef3fc727cf94797eae3ec88"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bLHuSHlYohwz2OK33iTtH3JQi5P2+n/bNP4tYk8J6Tur1qGgPcH538tua14+X5hhWd7MbYLUgRv2E+k4vnpTBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T10:03:11.311353Z","bundle_sha256":"996cb0844f4c5ae98ccf1182e3ee6c3ed7bd3df6401ebe08f7bb868cd5a53e61"}}