{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UUBPWRM5MTXHJORFKXPTN2IFT7","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":"b219ae69be1fa635f2d80a6a7b6f4b06702acd49fc43dc80dd041ce6d4023419","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-07-20T07:39:07Z","title_canon_sha256":"18c4580684db80501441c1cdfe847a8e593de34a1a56503032a1b3c949df7f9e"},"schema_version":"1.0","source":{"id":"1807.07724","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.07724","created_at":"2026-07-05T00:27:13Z"},{"alias_kind":"arxiv_version","alias_value":"1807.07724v4","created_at":"2026-07-05T00:27:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.07724","created_at":"2026-07-05T00:27:13Z"},{"alias_kind":"pith_short_12","alias_value":"UUBPWRM5MTXH","created_at":"2026-07-05T00:27:13Z"},{"alias_kind":"pith_short_16","alias_value":"UUBPWRM5MTXHJORF","created_at":"2026-07-05T00:27:13Z"},{"alias_kind":"pith_short_8","alias_value":"UUBPWRM5","created_at":"2026-07-05T00:27:13Z"}],"graph_snapshots":[{"event_id":"sha256:1f262f4d20494e2a0c74495b60dd31c7c7fbb165a0226d0e534e41e789b03822","target":"graph","created_at":"2026-07-05T00:27:13Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1807.07724/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents a benchmark of stream processing throughput comparing Apache Spark Streaming (under file-, TCP socket- and Kafka-based stream integration), with a prototype P2P stream processing framework, HarmonicIO. Maximum throughput for a spectrum of stream processing loads are measured, specifically, those with large message sizes (up to 10MB), and heavy CPU loads -- more typical of scientific computing use cases (such as microscopy), than enterprise contexts. A detailed exploration of the performance characteristics with these streaming sources, under varying loads, reveals an interp","authors_text":"Andreas Hellander, Ben Blamey, Salman Toor","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-07-20T07:39:07Z","title":"Apache Spark Streaming, Kafka and HarmonicIO: A Performance Benchmark and Architecture Comparison for Enterprise and Scientific Computing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.07724","kind":"arxiv","version":4},"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":"sha256:132a46ef4e2620bf0b26ddd84be1cfa5554fd1367947ee1f2c1998e2d279911d","target":"record","created_at":"2026-07-05T00:27:13Z","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":"b219ae69be1fa635f2d80a6a7b6f4b06702acd49fc43dc80dd041ce6d4023419","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-07-20T07:39:07Z","title_canon_sha256":"18c4580684db80501441c1cdfe847a8e593de34a1a56503032a1b3c949df7f9e"},"schema_version":"1.0","source":{"id":"1807.07724","kind":"arxiv","version":4}},"canonical_sha256":"a502fb459d64ee74ba2555df36e9059fe4880c8ce63bdb99ef2bd8b9bcb919c8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a502fb459d64ee74ba2555df36e9059fe4880c8ce63bdb99ef2bd8b9bcb919c8","first_computed_at":"2026-07-05T00:27:13.705845Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:27:13.705845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7lLbb6TFdK0GjzACDkM7J4+um2qdFV4Lws4UF8CCCzQaZtJJs+dAgYJGlRXv9kzXTVmuV0ZYDdsqnpi/ISr5Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:27:13.706342Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.07724","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:132a46ef4e2620bf0b26ddd84be1cfa5554fd1367947ee1f2c1998e2d279911d","sha256:1f262f4d20494e2a0c74495b60dd31c7c7fbb165a0226d0e534e41e789b03822"],"state_sha256":"5c728d3dd2967fb88fecc1d3fa440c58e10f2f4f23ee6e8f5524272e09995c04"}