{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:FZNYLQG64N654V53EBCKXEDKLK","short_pith_number":"pith:FZNYLQG6","canonical_record":{"source":{"id":"1901.04452","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-01-14T18:36:25Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"cc9723e51417acac63165ee736a2941b00ecc84caae2d53f7272743b927ee2a6","abstract_canon_sha256":"bf13c515ccf710a36e6b1eb875147915642729ded3e3d9431542b84791b3fbfb"},"schema_version":"1.0"},"canonical_sha256":"2e5b85c0dee37dde57bb2044ab906a5a960f8052ad0120700acce0b1214613bc","source":{"kind":"arxiv","id":"1901.04452","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.04452","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"arxiv_version","alias_value":"1901.04452v2","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.04452","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"pith_short_12","alias_value":"FZNYLQG64N65","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"FZNYLQG64N654V53","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"FZNYLQG6","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:FZNYLQG64N654V53EBCKXEDKLK","target":"record","payload":{"canonical_record":{"source":{"id":"1901.04452","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-01-14T18:36:25Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"cc9723e51417acac63165ee736a2941b00ecc84caae2d53f7272743b927ee2a6","abstract_canon_sha256":"bf13c515ccf710a36e6b1eb875147915642729ded3e3d9431542b84791b3fbfb"},"schema_version":"1.0"},"canonical_sha256":"2e5b85c0dee37dde57bb2044ab906a5a960f8052ad0120700acce0b1214613bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:50.207042Z","signature_b64":"3jD5AtoWeFIFe7a+Voq8Zq9V3rJsCaD9EKdsxkmsEvXOq7kLNxSpIYb/a+4yv0+6BbMtuZOB1we2RxmWh8PnAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e5b85c0dee37dde57bb2044ab906a5a960f8052ad0120700acce0b1214613bc","last_reissued_at":"2026-05-17T23:49:50.206455Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:50.206455Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.04452","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:49:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6fBCy496cjHW7POKgW7p0H+JvkyxTu3P9MFDHseQ7OjDVCZI4Ma4X6sBGQuOJKh4fTibDwHqyX02TbP0uVzvAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:19:08.561064Z"},"content_sha256":"3d6cf850d7c826e75a5abc2af449f8a6f6252f61c380fef60661a137e9a98e9c","schema_version":"1.0","event_id":"sha256:3d6cf850d7c826e75a5abc2af449f8a6f6252f61c380fef60661a137e9a98e9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:FZNYLQG64N654V53EBCKXEDKLK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FoundationDB Record Layer: A Multi-Tenant Structured Datastore","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DC"],"primary_cat":"cs.DB","authors_text":"Alec Grieser, Alexander Shraer, Ben Collins, Christos Chrysafis, Jay Dunkelberger, Kfir Lev-Ari, Mike McMahon, Moussa Ehsan, Nicholas Schiefer, Ori Herrnstadt, Scott Dugas, Scott Gray, Tao Lin","submitted_at":"2019-01-14T18:36:25Z","abstract_excerpt":"The FoundationDB Record Layer is an open source library that provides a record-oriented data store with semantics similar to a relational database implemented on top of FoundationDB, an ordered, transactional key-value store. The Record Layer provides a lightweight, highly extensible way to store structured data. It offers schema management and a rich set of query and indexing facilities, some of which are not usually found in traditional relational databases, such as nested record types, indexes on commit versions, and indexes that span multiple record types. The Record Layer is stateless and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.04452","kind":"arxiv","version":2},"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":"2026-05-17T23:49:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"97NxwO3/CBEFpE9KP846EHzAOKCeAr7z+hgV+u/wMy7KrYW3bEtyeeDL5XzmQbLY9d9Zjh0EakXhYq7D5ccRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:19:08.561735Z"},"content_sha256":"87b6ece2e7c20f40cf92e0248487b687ffd7851d764964977da8b3ba02356ec3","schema_version":"1.0","event_id":"sha256:87b6ece2e7c20f40cf92e0248487b687ffd7851d764964977da8b3ba02356ec3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FZNYLQG64N654V53EBCKXEDKLK/bundle.json","state_url":"https://pith.science/pith/FZNYLQG64N654V53EBCKXEDKLK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FZNYLQG64N654V53EBCKXEDKLK/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":"2026-05-26T03:19:08Z","links":{"resolver":"https://pith.science/pith/FZNYLQG64N654V53EBCKXEDKLK","bundle":"https://pith.science/pith/FZNYLQG64N654V53EBCKXEDKLK/bundle.json","state":"https://pith.science/pith/FZNYLQG64N654V53EBCKXEDKLK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FZNYLQG64N654V53EBCKXEDKLK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FZNYLQG64N654V53EBCKXEDKLK","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":"bf13c515ccf710a36e6b1eb875147915642729ded3e3d9431542b84791b3fbfb","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-01-14T18:36:25Z","title_canon_sha256":"cc9723e51417acac63165ee736a2941b00ecc84caae2d53f7272743b927ee2a6"},"schema_version":"1.0","source":{"id":"1901.04452","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.04452","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"arxiv_version","alias_value":"1901.04452v2","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.04452","created_at":"2026-05-17T23:49:50Z"},{"alias_kind":"pith_short_12","alias_value":"FZNYLQG64N65","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"FZNYLQG64N654V53","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"FZNYLQG6","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:87b6ece2e7c20f40cf92e0248487b687ffd7851d764964977da8b3ba02356ec3","target":"graph","created_at":"2026-05-17T23:49:50Z","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 FoundationDB Record Layer is an open source library that provides a record-oriented data store with semantics similar to a relational database implemented on top of FoundationDB, an ordered, transactional key-value store. The Record Layer provides a lightweight, highly extensible way to store structured data. It offers schema management and a rich set of query and indexing facilities, some of which are not usually found in traditional relational databases, such as nested record types, indexes on commit versions, and indexes that span multiple record types. The Record Layer is stateless and","authors_text":"Alec Grieser, Alexander Shraer, Ben Collins, Christos Chrysafis, Jay Dunkelberger, Kfir Lev-Ari, Mike McMahon, Moussa Ehsan, Nicholas Schiefer, Ori Herrnstadt, Scott Dugas, Scott Gray, Tao Lin","cross_cats":["cs.DC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-01-14T18:36:25Z","title":"FoundationDB Record Layer: A Multi-Tenant Structured Datastore"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.04452","kind":"arxiv","version":2},"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":"sha256:3d6cf850d7c826e75a5abc2af449f8a6f6252f61c380fef60661a137e9a98e9c","target":"record","created_at":"2026-05-17T23:49:50Z","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":"bf13c515ccf710a36e6b1eb875147915642729ded3e3d9431542b84791b3fbfb","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2019-01-14T18:36:25Z","title_canon_sha256":"cc9723e51417acac63165ee736a2941b00ecc84caae2d53f7272743b927ee2a6"},"schema_version":"1.0","source":{"id":"1901.04452","kind":"arxiv","version":2}},"canonical_sha256":"2e5b85c0dee37dde57bb2044ab906a5a960f8052ad0120700acce0b1214613bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e5b85c0dee37dde57bb2044ab906a5a960f8052ad0120700acce0b1214613bc","first_computed_at":"2026-05-17T23:49:50.206455Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:50.206455Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3jD5AtoWeFIFe7a+Voq8Zq9V3rJsCaD9EKdsxkmsEvXOq7kLNxSpIYb/a+4yv0+6BbMtuZOB1we2RxmWh8PnAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:50.207042Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.04452","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3d6cf850d7c826e75a5abc2af449f8a6f6252f61c380fef60661a137e9a98e9c","sha256:87b6ece2e7c20f40cf92e0248487b687ffd7851d764964977da8b3ba02356ec3"],"state_sha256":"8088ca0945620eb3f38219109a218528a06ec796e3b3de622e698a6763cb44e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nUf0KalEp8ojX9Mo55ktFYY2hNwZZXHJcyGGJ4hpSN2ra8xwjLa2mf8gQaqBaXGo/rCSxrrQsJQUfUJnlzYWDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:19:08.565791Z","bundle_sha256":"630ccdb3bac952764de71554fbb300651f518784761bef8cc21d923330a85e10"}}