{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:JH25OBOLF3XA5UTYVYKZARET47","short_pith_number":"pith:JH25OBOL","canonical_record":{"source":{"id":"1210.4329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-10-16T09:41:36Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"7fa3086c86fd42d410dcbd963c1c5016648152b46275d2a068290227565fde4c","abstract_canon_sha256":"b0fcde37744d27dd798b9366039476c82acbdb06e46d6d55e87b3c1074c8a7e5"},"schema_version":"1.0"},"canonical_sha256":"49f5d705cb2eee0ed278ae15904493e7e75d734659e6242b06d7a47f53f85c8c","source":{"kind":"arxiv","id":"1210.4329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.4329","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.4329v1","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.4329","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"pith_short_12","alias_value":"JH25OBOLF3XA","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JH25OBOLF3XA5UTY","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JH25OBOL","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:JH25OBOLF3XA5UTYVYKZARET47","target":"record","payload":{"canonical_record":{"source":{"id":"1210.4329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-10-16T09:41:36Z","cross_cats_sorted":["math.IT"],"title_canon_sha256":"7fa3086c86fd42d410dcbd963c1c5016648152b46275d2a068290227565fde4c","abstract_canon_sha256":"b0fcde37744d27dd798b9366039476c82acbdb06e46d6d55e87b3c1074c8a7e5"},"schema_version":"1.0"},"canonical_sha256":"49f5d705cb2eee0ed278ae15904493e7e75d734659e6242b06d7a47f53f85c8c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:04.718726Z","signature_b64":"D+8HiOXBrun+b/7jUHiqUBz8X+ls3HI7N3jOuJUbe7IM3JPrbE/hklCUOb2gUc3NjR7T4hdv0WJ7o5XBusTuCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49f5d705cb2eee0ed278ae15904493e7e75d734659e6242b06d7a47f53f85c8c","last_reissued_at":"2026-05-18T00:59:04.718053Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:04.718053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.4329","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":"2026-05-18T00:59:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QKuEC71e98UBaobYBpsL79e+Bqac0J2bZ9rX7WEF4LYmNpxe6dYhSUAk51+Lpc0EFhi9l0kxorFMo2mHw82TCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:01:33.892638Z"},"content_sha256":"1e9735fe9e7073b8a228a4125ef858033abf59c07ff834fbe10f95db188f8ea2","schema_version":"1.0","event_id":"sha256:1e9735fe9e7073b8a228a4125ef858033abf59c07ff834fbe10f95db188f8ea2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:JH25OBOLF3XA5UTYVYKZARET47","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact of Scheduling in the Return-Link of Multi-Beam Satellite MIMO Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.IT"],"primary_cat":"cs.IT","authors_text":"Loris Marini, Matteo Berioli, Vincent Boussemart","submitted_at":"2012-10-16T09:41:36Z","abstract_excerpt":"The utilization of universal frequency reuse in multi-beam satellite systems introduces a non-negligible level of co-channel interference (CCI), which in turn penalizes the quality of service experienced by users. Taking this as starting point, the paper focuses on resource management performed by the gateway (hub) on the return-link, with particular emphasis on a scheduling algorithm based on bipartite graph approach. The study gives important insights into the achievable per-user rate and the role played by the number of users and spot beams considered for scheduling. More interestingly, it "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4329","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":"2026-05-18T00:59:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4VS5IwDizyVmu57bwF/jQ5NOgWr3A1b7jvuW5rRae75LqF3juk0yGrn7P3qJGUhItvc9Gje7nFwAK/Wylc5kCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:01:33.892987Z"},"content_sha256":"5e90d03c239e4d7c0247f695ef37531c3d0cb94d38969e9d904ed872bcac0ec9","schema_version":"1.0","event_id":"sha256:5e90d03c239e4d7c0247f695ef37531c3d0cb94d38969e9d904ed872bcac0ec9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JH25OBOLF3XA5UTYVYKZARET47/bundle.json","state_url":"https://pith.science/pith/JH25OBOLF3XA5UTYVYKZARET47/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JH25OBOLF3XA5UTYVYKZARET47/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":"2026-05-28T07:01:33Z","links":{"resolver":"https://pith.science/pith/JH25OBOLF3XA5UTYVYKZARET47","bundle":"https://pith.science/pith/JH25OBOLF3XA5UTYVYKZARET47/bundle.json","state":"https://pith.science/pith/JH25OBOLF3XA5UTYVYKZARET47/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JH25OBOLF3XA5UTYVYKZARET47/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JH25OBOLF3XA5UTYVYKZARET47","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":"b0fcde37744d27dd798b9366039476c82acbdb06e46d6d55e87b3c1074c8a7e5","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-10-16T09:41:36Z","title_canon_sha256":"7fa3086c86fd42d410dcbd963c1c5016648152b46275d2a068290227565fde4c"},"schema_version":"1.0","source":{"id":"1210.4329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.4329","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.4329v1","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.4329","created_at":"2026-05-18T00:59:04Z"},{"alias_kind":"pith_short_12","alias_value":"JH25OBOLF3XA","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JH25OBOLF3XA5UTY","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JH25OBOL","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:5e90d03c239e4d7c0247f695ef37531c3d0cb94d38969e9d904ed872bcac0ec9","target":"graph","created_at":"2026-05-18T00:59:04Z","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":"The utilization of universal frequency reuse in multi-beam satellite systems introduces a non-negligible level of co-channel interference (CCI), which in turn penalizes the quality of service experienced by users. Taking this as starting point, the paper focuses on resource management performed by the gateway (hub) on the return-link, with particular emphasis on a scheduling algorithm based on bipartite graph approach. The study gives important insights into the achievable per-user rate and the role played by the number of users and spot beams considered for scheduling. More interestingly, it ","authors_text":"Loris Marini, Matteo Berioli, Vincent Boussemart","cross_cats":["math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-10-16T09:41:36Z","title":"Impact of Scheduling in the Return-Link of Multi-Beam Satellite MIMO Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.4329","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":"sha256:1e9735fe9e7073b8a228a4125ef858033abf59c07ff834fbe10f95db188f8ea2","target":"record","created_at":"2026-05-18T00:59:04Z","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":"b0fcde37744d27dd798b9366039476c82acbdb06e46d6d55e87b3c1074c8a7e5","cross_cats_sorted":["math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2012-10-16T09:41:36Z","title_canon_sha256":"7fa3086c86fd42d410dcbd963c1c5016648152b46275d2a068290227565fde4c"},"schema_version":"1.0","source":{"id":"1210.4329","kind":"arxiv","version":1}},"canonical_sha256":"49f5d705cb2eee0ed278ae15904493e7e75d734659e6242b06d7a47f53f85c8c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49f5d705cb2eee0ed278ae15904493e7e75d734659e6242b06d7a47f53f85c8c","first_computed_at":"2026-05-18T00:59:04.718053Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:04.718053Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D+8HiOXBrun+b/7jUHiqUBz8X+ls3HI7N3jOuJUbe7IM3JPrbE/hklCUOb2gUc3NjR7T4hdv0WJ7o5XBusTuCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:04.718726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.4329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e9735fe9e7073b8a228a4125ef858033abf59c07ff834fbe10f95db188f8ea2","sha256:5e90d03c239e4d7c0247f695ef37531c3d0cb94d38969e9d904ed872bcac0ec9"],"state_sha256":"390388e9778500e5379e12afd5ae683861e9c807a83fd182f057a6655466b044"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VY6gKst1XdWIhtLgbF5v9wyd9EOMbzKwdGS/QBqvT8x5LhGF3Cz0co4ZAG7Z5qK5fSiklpEtTBQ4leKszDCHAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:01:33.895062Z","bundle_sha256":"ae54ca791ddb68ceb6289d5689a8cdc57c6a6a70e9e274b4872022ab1481df7a"}}