{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:64IZ453M5TO4HIKR5HOJ6HDVIF","short_pith_number":"pith:64IZ453M","schema_version":"1.0","canonical_sha256":"f7119e776cecddc3a151e9dc9f1c754162cc63f4daa3556075e7f3a092339b8f","source":{"kind":"arxiv","id":"1809.00089","version":1},"attestation_state":"computed","paper":{"title":"Eliminating Boundaries in Cloud Storage with Anna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Chenggang Wu, Joseph M. Hellerstein, Vikram Sreekanti","submitted_at":"2018-09-01T00:20:05Z","abstract_excerpt":"In this paper, we describe how we extended a distributed key-value store called Anna into an elastic, multi-tier service for the cloud. In its extended form, Anna is designed to overcome the narrow cost-performance limitations typical of current cloud storage systems. We describe three key aspects of Anna's new design: multi-master selective replication of hot keys, a vertical tiering of storage layers with different cost-performance tradeoffs, and horizontal elasticity of each tier to add and remove nodes in response to load dynamics. Anna's policy engine uses these mechanisms to balance serv"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1809.00089","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2018-09-01T00:20:05Z","cross_cats_sorted":[],"title_canon_sha256":"27ac1113b1bd9aaa830f2ebf0a6ab2b1199cc8ef3afd28559b02f86b9022991d","abstract_canon_sha256":"4246c93509515353213b87e85c11c8fffff8310d603f7124f40ab519b670af7f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:36.153474Z","signature_b64":"qDJNisI8R3aYAUk4mrlgrWJnRytG1KOF1SUz+JFFkYi5imm/j80fA1nVKVyKIwNL/L2X6ev6rqS5pU6cg8+NAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7119e776cecddc3a151e9dc9f1c754162cc63f4daa3556075e7f3a092339b8f","last_reissued_at":"2026-05-18T00:06:36.152783Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:36.152783Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Eliminating Boundaries in Cloud Storage with Anna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Chenggang Wu, Joseph M. Hellerstein, Vikram Sreekanti","submitted_at":"2018-09-01T00:20:05Z","abstract_excerpt":"In this paper, we describe how we extended a distributed key-value store called Anna into an elastic, multi-tier service for the cloud. In its extended form, Anna is designed to overcome the narrow cost-performance limitations typical of current cloud storage systems. We describe three key aspects of Anna's new design: multi-master selective replication of hot keys, a vertical tiering of storage layers with different cost-performance tradeoffs, and horizontal elasticity of each tier to add and remove nodes in response to load dynamics. Anna's policy engine uses these mechanisms to balance serv"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00089","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1809.00089","created_at":"2026-05-18T00:06:36.152892+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.00089v1","created_at":"2026-05-18T00:06:36.152892+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00089","created_at":"2026-05-18T00:06:36.152892+00:00"},{"alias_kind":"pith_short_12","alias_value":"64IZ453M5TO4","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"64IZ453M5TO4HIKR","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"64IZ453M","created_at":"2026-05-18T12:32:08.215937+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF","json":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF.json","graph_json":"https://pith.science/api/pith-number/64IZ453M5TO4HIKR5HOJ6HDVIF/graph.json","events_json":"https://pith.science/api/pith-number/64IZ453M5TO4HIKR5HOJ6HDVIF/events.json","paper":"https://pith.science/paper/64IZ453M"},"agent_actions":{"view_html":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF","download_json":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF.json","view_paper":"https://pith.science/paper/64IZ453M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.00089&json=true","fetch_graph":"https://pith.science/api/pith-number/64IZ453M5TO4HIKR5HOJ6HDVIF/graph.json","fetch_events":"https://pith.science/api/pith-number/64IZ453M5TO4HIKR5HOJ6HDVIF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF/action/storage_attestation","attest_author":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF/action/author_attestation","sign_citation":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF/action/citation_signature","submit_replication":"https://pith.science/pith/64IZ453M5TO4HIKR5HOJ6HDVIF/action/replication_record"}},"created_at":"2026-05-18T00:06:36.152892+00:00","updated_at":"2026-05-18T00:06:36.152892+00:00"}