{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:I2B2INHZKUHOF2Q23I7LHCRPGR","short_pith_number":"pith:I2B2INHZ","canonical_record":{"source":{"id":"2503.18688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2025-03-24T13:57:43Z","cross_cats_sorted":[],"title_canon_sha256":"0e69240b6c69b038b1d0203f8422e98b29c8b5c9917040aecec9a7856b242a41","abstract_canon_sha256":"6dbfa570985d7db8ebfd00467f0d4a7663f5c2e5dd09ab5c68376cd4920a0b1f"},"schema_version":"1.0"},"canonical_sha256":"4683a434f9550ee2ea1ada3eb38a2f346493319d1be245c346010258c459ca7e","source":{"kind":"arxiv","id":"2503.18688","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.18688","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"2503.18688v1","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.18688","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"I2B2INHZKUHO","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"I2B2INHZKUHOF2Q2","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"I2B2INHZ","created_at":"2026-07-05T10:38:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:I2B2INHZKUHOF2Q23I7LHCRPGR","target":"record","payload":{"canonical_record":{"source":{"id":"2503.18688","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2025-03-24T13:57:43Z","cross_cats_sorted":[],"title_canon_sha256":"0e69240b6c69b038b1d0203f8422e98b29c8b5c9917040aecec9a7856b242a41","abstract_canon_sha256":"6dbfa570985d7db8ebfd00467f0d4a7663f5c2e5dd09ab5c68376cd4920a0b1f"},"schema_version":"1.0"},"canonical_sha256":"4683a434f9550ee2ea1ada3eb38a2f346493319d1be245c346010258c459ca7e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:38:25.075722Z","signature_b64":"7A4Ecte+9xdBHDXWmfhYkWF9BnyHkKDrXcLAmE9/lNpRrDMHol3+WuPWzvWgmX7++6mWhiWZ1jhgKLYDVSEqDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4683a434f9550ee2ea1ada3eb38a2f346493319d1be245c346010258c459ca7e","last_reissued_at":"2026-07-05T10:38:25.075122Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:38:25.075122Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.18688","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":"2026-07-05T10:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dtFbKhfUhIHkVKvnWFll7Bb6finhG0No4cPvK+Uggnl5Plzh8w0EFJf4qGNWy78kfFAjWy8vK6UnuYGq8zuiDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:13:02.145539Z"},"content_sha256":"7f376f4a33290e20bf46a81021ad3aab067f710c73af3aa1ce7e6dc33f130c85","schema_version":"1.0","event_id":"sha256:7f376f4a33290e20bf46a81021ad3aab067f710c73af3aa1ce7e6dc33f130c85"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:I2B2INHZKUHOF2Q23I7LHCRPGR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SynchroStore: A Cost-Based Fine-Grained Incremental Compaction for Hybrid Workloads","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"Huiqi Hu, Xuan Zhou, Yinan Zhang","submitted_at":"2025-03-24T13:57:43Z","abstract_excerpt":"This study proposes a novel storage engine, SynchroStore, designed to address the inefficiency of update operations in columnar storage systems based on Log-Structured Merge Trees (LSM-Trees) under hybrid workload scenarios. While columnar storage formats demonstrate significant query performance advantages when handling large-scale datasets, traditional columnar storage systems face challenges such as high update complexity and poor real-time performance in data-intensive applications. SynchroStore introduces an incremental row storage mechanism and a fine-grained row-to-column transformation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.18688","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.18688/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L62i6Q5OBoGA59dUYY6+qwJkglA5DXYJZkP8mMeq1veCZdIkISCLP4ZinPDDbdSIq0C2n/V20TvnyFCxyoxJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:13:02.146059Z"},"content_sha256":"e4310bd25701fab782d26d86b850e91772116f45dff146bf14dc2e20830dfc4f","schema_version":"1.0","event_id":"sha256:e4310bd25701fab782d26d86b850e91772116f45dff146bf14dc2e20830dfc4f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/bundle.json","state_url":"https://pith.science/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/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":"2026-08-03T21:13:02Z","links":{"resolver":"https://pith.science/pith/I2B2INHZKUHOF2Q23I7LHCRPGR","bundle":"https://pith.science/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/bundle.json","state":"https://pith.science/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I2B2INHZKUHOF2Q23I7LHCRPGR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:I2B2INHZKUHOF2Q23I7LHCRPGR","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":"6dbfa570985d7db8ebfd00467f0d4a7663f5c2e5dd09ab5c68376cd4920a0b1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2025-03-24T13:57:43Z","title_canon_sha256":"0e69240b6c69b038b1d0203f8422e98b29c8b5c9917040aecec9a7856b242a41"},"schema_version":"1.0","source":{"id":"2503.18688","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.18688","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"2503.18688v1","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.18688","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"I2B2INHZKUHO","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_16","alias_value":"I2B2INHZKUHOF2Q2","created_at":"2026-07-05T10:38:25Z"},{"alias_kind":"pith_short_8","alias_value":"I2B2INHZ","created_at":"2026-07-05T10:38:25Z"}],"graph_snapshots":[{"event_id":"sha256:e4310bd25701fab782d26d86b850e91772116f45dff146bf14dc2e20830dfc4f","target":"graph","created_at":"2026-07-05T10:38:25Z","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/2503.18688/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study proposes a novel storage engine, SynchroStore, designed to address the inefficiency of update operations in columnar storage systems based on Log-Structured Merge Trees (LSM-Trees) under hybrid workload scenarios. While columnar storage formats demonstrate significant query performance advantages when handling large-scale datasets, traditional columnar storage systems face challenges such as high update complexity and poor real-time performance in data-intensive applications. SynchroStore introduces an incremental row storage mechanism and a fine-grained row-to-column transformation","authors_text":"Huiqi Hu, Xuan Zhou, Yinan Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2025-03-24T13:57:43Z","title":"SynchroStore: A Cost-Based Fine-Grained Incremental Compaction for Hybrid Workloads"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.18688","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":"sha256:7f376f4a33290e20bf46a81021ad3aab067f710c73af3aa1ce7e6dc33f130c85","target":"record","created_at":"2026-07-05T10:38:25Z","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":"6dbfa570985d7db8ebfd00467f0d4a7663f5c2e5dd09ab5c68376cd4920a0b1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2025-03-24T13:57:43Z","title_canon_sha256":"0e69240b6c69b038b1d0203f8422e98b29c8b5c9917040aecec9a7856b242a41"},"schema_version":"1.0","source":{"id":"2503.18688","kind":"arxiv","version":1}},"canonical_sha256":"4683a434f9550ee2ea1ada3eb38a2f346493319d1be245c346010258c459ca7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4683a434f9550ee2ea1ada3eb38a2f346493319d1be245c346010258c459ca7e","first_computed_at":"2026-07-05T10:38:25.075122Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:38:25.075122Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7A4Ecte+9xdBHDXWmfhYkWF9BnyHkKDrXcLAmE9/lNpRrDMHol3+WuPWzvWgmX7++6mWhiWZ1jhgKLYDVSEqDA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:38:25.075722Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.18688","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7f376f4a33290e20bf46a81021ad3aab067f710c73af3aa1ce7e6dc33f130c85","sha256:e4310bd25701fab782d26d86b850e91772116f45dff146bf14dc2e20830dfc4f"],"state_sha256":"c5e757a2fe949d8b61ef356d6d95ae2c043ab9af0024b7249e8e47c013e04918"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"25mQ0xRr+ij5e0SCjC9GwJ49ImLaCdE2wQPU4oLFEqgJf0EetruqbbKRixdux2sjTIqsMk0uYuM9yQUJgwSTAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:13:02.151893Z","bundle_sha256":"cf64d7af88bedd901a03fdde7727372bd5757aa06a34b0c95fcd6758e0bac2cd"}}