{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:6E6TQOECB4WW5WOLO7CRQPKE7L","short_pith_number":"pith:6E6TQOEC","canonical_record":{"source":{"id":"1504.00331","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2015-04-01T18:27:23Z","cross_cats_sorted":[],"title_canon_sha256":"4a9965664f5ae0d9115316560f06e8e5a055e4ef9640359cd6606c82a8a8612b","abstract_canon_sha256":"a1d78fb63d26373ab8628e72c0f8bbe400b687a9bcbb22beac020ae500cd0ee4"},"schema_version":"1.0"},"canonical_sha256":"f13d3838820f2d6ed9cb77c5183d44faf8c62e0c72069ac324a1524a0ca6c015","source":{"kind":"arxiv","id":"1504.00331","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.00331","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"1504.00331v1","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.00331","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"6E6TQOECB4WW","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6E6TQOECB4WW5WOL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6E6TQOEC","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:6E6TQOECB4WW5WOLO7CRQPKE7L","target":"record","payload":{"canonical_record":{"source":{"id":"1504.00331","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2015-04-01T18:27:23Z","cross_cats_sorted":[],"title_canon_sha256":"4a9965664f5ae0d9115316560f06e8e5a055e4ef9640359cd6606c82a8a8612b","abstract_canon_sha256":"a1d78fb63d26373ab8628e72c0f8bbe400b687a9bcbb22beac020ae500cd0ee4"},"schema_version":"1.0"},"canonical_sha256":"f13d3838820f2d6ed9cb77c5183d44faf8c62e0c72069ac324a1524a0ca6c015","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:19:44.074490Z","signature_b64":"/Q1L03LjSTn+g42PJ0afevm26GBysowLm5tg07Zz+dP4K/Bjz4ac9y/D2vIyBfHHG6Or7ek+VUB4W+RPY1CKDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f13d3838820f2d6ed9cb77c5183d44faf8c62e0c72069ac324a1524a0ca6c015","last_reissued_at":"2026-05-18T02:19:44.074101Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:19:44.074101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.00331","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":"2026-05-18T02:19:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/3PgRPW7pwaJ3+jUnnY8Q21auuaJLzs66IlubmrsrVs2t1ZeLZrhWmquzokjK5Ky/xZw4+V5/rCwYJZcsTS+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:51:54.640587Z"},"content_sha256":"73539e901b1c28f3a5a52575749f811d2081fd5a9da0d46bdf5f74d6b8d857be","schema_version":"1.0","event_id":"sha256:73539e901b1c28f3a5a52575749f811d2081fd5a9da0d46bdf5f74d6b8d857be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:6E6TQOECB4WW5WOLO7CRQPKE7L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Apache VXQuery: A Scalable XQuery Implementation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DB","authors_text":"(2) Oracle Labs, (3) UC Irvine), E. Preston Carman Jr. (1), Michael J. Carey (3), Till Westmann (2), Vassilis J. Tsotras (1) ((1) UC Riverside, Vinayak R. Borkar (3)","submitted_at":"2015-04-01T18:27:23Z","abstract_excerpt":"The wide use of XML for document management and data exchange has created the need to query large repositories of XML data. To efficiently query such large data collections and take advantage of parallelism, we have implemented Apache VXQuery, an open-source scalable XQuery processor. The system builds upon two other open-source frameworks -- Hyracks, a parallel execution engine, and Algebricks, a language agnostic compiler toolbox. Apache VXQuery extends these two frameworks and provides an implementation of the XQuery specifics (data model, data-model dependent functions and optimizations, a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00331","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:19:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H4EV/xQj+02V6OPLxGdxyzfZOKPbicxJfqOzr6+HMD9p9oS4+K/7Z/roFDVihmeMXSbhaCoBsaMSzJCx6jAFBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T13:51:54.641302Z"},"content_sha256":"9c3dfbd880b57e427608a189b49d2fae6295a5b2bae33a1a035f8cfba2a8362f","schema_version":"1.0","event_id":"sha256:9c3dfbd880b57e427608a189b49d2fae6295a5b2bae33a1a035f8cfba2a8362f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/bundle.json","state_url":"https://pith.science/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/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":"2026-06-10T13:51:54Z","links":{"resolver":"https://pith.science/pith/6E6TQOECB4WW5WOLO7CRQPKE7L","bundle":"https://pith.science/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/bundle.json","state":"https://pith.science/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6E6TQOECB4WW5WOLO7CRQPKE7L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6E6TQOECB4WW5WOLO7CRQPKE7L","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":"a1d78fb63d26373ab8628e72c0f8bbe400b687a9bcbb22beac020ae500cd0ee4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2015-04-01T18:27:23Z","title_canon_sha256":"4a9965664f5ae0d9115316560f06e8e5a055e4ef9640359cd6606c82a8a8612b"},"schema_version":"1.0","source":{"id":"1504.00331","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.00331","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"arxiv_version","alias_value":"1504.00331v1","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.00331","created_at":"2026-05-18T02:19:44Z"},{"alias_kind":"pith_short_12","alias_value":"6E6TQOECB4WW","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6E6TQOECB4WW5WOL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6E6TQOEC","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:9c3dfbd880b57e427608a189b49d2fae6295a5b2bae33a1a035f8cfba2a8362f","target":"graph","created_at":"2026-05-18T02:19:44Z","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 wide use of XML for document management and data exchange has created the need to query large repositories of XML data. To efficiently query such large data collections and take advantage of parallelism, we have implemented Apache VXQuery, an open-source scalable XQuery processor. The system builds upon two other open-source frameworks -- Hyracks, a parallel execution engine, and Algebricks, a language agnostic compiler toolbox. Apache VXQuery extends these two frameworks and provides an implementation of the XQuery specifics (data model, data-model dependent functions and optimizations, a","authors_text":"(2) Oracle Labs, (3) UC Irvine), E. Preston Carman Jr. (1), Michael J. Carey (3), Till Westmann (2), Vassilis J. Tsotras (1) ((1) UC Riverside, Vinayak R. Borkar (3)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2015-04-01T18:27:23Z","title":"Apache VXQuery: A Scalable XQuery Implementation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.00331","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":"sha256:73539e901b1c28f3a5a52575749f811d2081fd5a9da0d46bdf5f74d6b8d857be","target":"record","created_at":"2026-05-18T02:19:44Z","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":"a1d78fb63d26373ab8628e72c0f8bbe400b687a9bcbb22beac020ae500cd0ee4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DB","submitted_at":"2015-04-01T18:27:23Z","title_canon_sha256":"4a9965664f5ae0d9115316560f06e8e5a055e4ef9640359cd6606c82a8a8612b"},"schema_version":"1.0","source":{"id":"1504.00331","kind":"arxiv","version":1}},"canonical_sha256":"f13d3838820f2d6ed9cb77c5183d44faf8c62e0c72069ac324a1524a0ca6c015","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f13d3838820f2d6ed9cb77c5183d44faf8c62e0c72069ac324a1524a0ca6c015","first_computed_at":"2026-05-18T02:19:44.074101Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:19:44.074101Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/Q1L03LjSTn+g42PJ0afevm26GBysowLm5tg07Zz+dP4K/Bjz4ac9y/D2vIyBfHHG6Or7ek+VUB4W+RPY1CKDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:19:44.074490Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.00331","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:73539e901b1c28f3a5a52575749f811d2081fd5a9da0d46bdf5f74d6b8d857be","sha256:9c3dfbd880b57e427608a189b49d2fae6295a5b2bae33a1a035f8cfba2a8362f"],"state_sha256":"d30837f4d4ec2419b476967ddf8222fa8d1df9fdf9a3ca5290fdce2684a32301"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EI/LsWCYK5ZagXUt9u5dq/xF0QqkcIZ5HSLEgt9M9BmveIWm6OLTPeklNQwqS6kMuktqFSosoPPyuyBjHSIrBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T13:51:54.645608Z","bundle_sha256":"49c9eab03bf9da51b64d2feda19c5cb445fe06f1958e74ac1504a1b30293ecb3"}}