{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DMKFO6MTQ5BM26DC5MZOB7VG57","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":"da8d102c404aa7922e4a54fca7f2a713e0e1250b932e5e84e26eeeb3e4837250","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2012-04-08T19:10:07Z","title_canon_sha256":"ae06a4a49f03315e0ae8e058bf8e481f43151a213ab66c21ef430f9542c3b5fe"},"schema_version":"1.0","source":{"id":"1204.1754","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.1754","created_at":"2026-05-18T03:58:15Z"},{"alias_kind":"arxiv_version","alias_value":"1204.1754v1","created_at":"2026-05-18T03:58:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.1754","created_at":"2026-05-18T03:58:15Z"},{"alias_kind":"pith_short_12","alias_value":"DMKFO6MTQ5BM","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DMKFO6MTQ5BM26DC","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DMKFO6MT","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:a2346cf484c7b4041bd923453677f1e371619aa773b4927b143567548da22cdd","target":"graph","created_at":"2026-05-18T03:58:15Z","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":"A significant amount of recent research work has addressed the problem of solving various data management problems in the cloud. The major algorithmic challenges in map-reduce computations involve balancing a multitude of factors such as the number of machines available for mappers/reducers, their memory requirements, and communication cost (total amount of data sent from mappers to reducers). Most past work provides custom solutions to specific problems, e.g., performing fuzzy joins in map-reduce, clustering, graph analyses, and so on. While some problems are amenable to very efficient map-re","authors_text":"Anish Das Sarma, Foto N. Afrati, Jeffrey D. Ullman, Semih Salihoglu","cross_cats":["cs.DC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2012-04-08T19:10:07Z","title":"Vision Paper: Towards an Understanding of the Limits of Map-Reduce Computation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.1754","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":"sha256:0489b1f76092553501d58a8d7eefbe2f6fb048f83b8afb3b96cc80334776c719","target":"record","created_at":"2026-05-18T03:58:15Z","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":"da8d102c404aa7922e4a54fca7f2a713e0e1250b932e5e84e26eeeb3e4837250","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2012-04-08T19:10:07Z","title_canon_sha256":"ae06a4a49f03315e0ae8e058bf8e481f43151a213ab66c21ef430f9542c3b5fe"},"schema_version":"1.0","source":{"id":"1204.1754","kind":"arxiv","version":1}},"canonical_sha256":"1b145779938742cd7862eb32e0fea6efe77c20a09b2f034fd2331ae0b2f1514a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b145779938742cd7862eb32e0fea6efe77c20a09b2f034fd2331ae0b2f1514a","first_computed_at":"2026-05-18T03:58:15.283192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:58:15.283192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Yf6bCjgK/qiSljSQcHEqbA4brar5aECc9b8BhNZXPtPUcYzcg+ejUKa6TU2JlcYU46jTowCvoHOfuz93fFoeDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:58:15.283732Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.1754","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0489b1f76092553501d58a8d7eefbe2f6fb048f83b8afb3b96cc80334776c719","sha256:a2346cf484c7b4041bd923453677f1e371619aa773b4927b143567548da22cdd"],"state_sha256":"d5d5eb7bdda5c5f3c5ca37c977ca0783b544fa031d480afbcb98edc8e7390b6f"}