{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:UV2MRHJHK5ADOVWU4LZUPG47S7","short_pith_number":"pith:UV2MRHJH","canonical_record":{"source":{"id":"1401.7372","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"stat.CO","submitted_at":"2014-01-28T23:57:02Z","cross_cats_sorted":["cs.MS","cs.SE"],"title_canon_sha256":"7728a1e52694fc395e432b70add5c1a0ce0113126193c79c91f664b08bc1c240","abstract_canon_sha256":"5fa1397a213c161ab4d3d9ac3c434b4c86e5aaec0a7dd064fe69fd2ad95baec0"},"schema_version":"1.0"},"canonical_sha256":"a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba","source":{"kind":"arxiv","id":"1401.7372","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.7372","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"1401.7372v1","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7372","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"UV2MRHJHK5AD","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UV2MRHJHK5ADOVWU","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UV2MRHJH","created_at":"2026-05-18T12:28:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:UV2MRHJHK5ADOVWU4LZUPG47S7","target":"record","payload":{"canonical_record":{"source":{"id":"1401.7372","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"stat.CO","submitted_at":"2014-01-28T23:57:02Z","cross_cats_sorted":["cs.MS","cs.SE"],"title_canon_sha256":"7728a1e52694fc395e432b70add5c1a0ce0113126193c79c91f664b08bc1c240","abstract_canon_sha256":"5fa1397a213c161ab4d3d9ac3c434b4c86e5aaec0a7dd064fe69fd2ad95baec0"},"schema_version":"1.0"},"canonical_sha256":"a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:33.690722Z","signature_b64":"3xIeOyF3m56KIzEaSXWIn4htKNfO9bXt/9mjo0gL3jcIb2gdDT0Im6qdFd1/XmhP8s+qY40PGUwJXb19iv/cBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba","last_reissued_at":"2026-05-18T01:10:33.690007Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:33.690007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.7372","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":"2026-05-18T01:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+4Y2blWCYJY6IUr09Ta7FQARC6dXBpMlY8tDzw7tjmqLi3XIYmVFbiPHoREpIvb7yHA2Lc5DXPRobO5sBgDDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:28:05.529442Z"},"content_sha256":"18d1c3febf8f8f7e21e627c5d91f73d4ae407300b6cdef91e36fe37f49975a05","schema_version":"1.0","event_id":"sha256:18d1c3febf8f8f7e21e627c5d91f73d4ae407300b6cdef91e36fe37f49975a05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:UV2MRHJHK5ADOVWU4LZUPG47S7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RProtoBuf: Efficient Cross-Language Data Serialization in R","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["cs.MS","cs.SE"],"primary_cat":"stat.CO","authors_text":"Dirk Eddelbuettel, Jeroen Ooms, Murray Stokely","submitted_at":"2014-01-28T23:57:02Z","abstract_excerpt":"Modern data collection and analysis pipelines often involve a sophisticated mix of applications written in general purpose and specialized programming languages. Many formats commonly used to import and export data between different programs or systems, such as CSV or JSON, are verbose, inefficient, not type-safe, or tied to a specific programming language. Protocol Buffers are a popular method of serializing structured data between applications - while remaining independent of programming languages or operating systems. They offer a unique combination of features, performance, and maturity th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7372","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":"2026-05-18T01:10:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yiI/EsInyjPSsg+aPmjUdv/IAxxGIdNn39OZ3JrEFyzU2zl/UrHI+RpT/8hdoypkH6iCnIhpFNZk+QmVDc94Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:28:05.529792Z"},"content_sha256":"e5ed96af9838112e2be9a6b708686b97dda16b8a09e181230d0d8d7ad9abc178","schema_version":"1.0","event_id":"sha256:e5ed96af9838112e2be9a6b708686b97dda16b8a09e181230d0d8d7ad9abc178"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/bundle.json","state_url":"https://pith.science/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/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":"2026-06-11T13:28:05Z","links":{"resolver":"https://pith.science/pith/UV2MRHJHK5ADOVWU4LZUPG47S7","bundle":"https://pith.science/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/bundle.json","state":"https://pith.science/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UV2MRHJHK5ADOVWU4LZUPG47S7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:UV2MRHJHK5ADOVWU4LZUPG47S7","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":"5fa1397a213c161ab4d3d9ac3c434b4c86e5aaec0a7dd064fe69fd2ad95baec0","cross_cats_sorted":["cs.MS","cs.SE"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"stat.CO","submitted_at":"2014-01-28T23:57:02Z","title_canon_sha256":"7728a1e52694fc395e432b70add5c1a0ce0113126193c79c91f664b08bc1c240"},"schema_version":"1.0","source":{"id":"1401.7372","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.7372","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"arxiv_version","alias_value":"1401.7372v1","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7372","created_at":"2026-05-18T01:10:33Z"},{"alias_kind":"pith_short_12","alias_value":"UV2MRHJHK5AD","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UV2MRHJHK5ADOVWU","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UV2MRHJH","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:e5ed96af9838112e2be9a6b708686b97dda16b8a09e181230d0d8d7ad9abc178","target":"graph","created_at":"2026-05-18T01:10:33Z","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":"Modern data collection and analysis pipelines often involve a sophisticated mix of applications written in general purpose and specialized programming languages. Many formats commonly used to import and export data between different programs or systems, such as CSV or JSON, are verbose, inefficient, not type-safe, or tied to a specific programming language. Protocol Buffers are a popular method of serializing structured data between applications - while remaining independent of programming languages or operating systems. They offer a unique combination of features, performance, and maturity th","authors_text":"Dirk Eddelbuettel, Jeroen Ooms, Murray Stokely","cross_cats":["cs.MS","cs.SE"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"stat.CO","submitted_at":"2014-01-28T23:57:02Z","title":"RProtoBuf: Efficient Cross-Language Data Serialization in R"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7372","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":"sha256:18d1c3febf8f8f7e21e627c5d91f73d4ae407300b6cdef91e36fe37f49975a05","target":"record","created_at":"2026-05-18T01:10:33Z","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":"5fa1397a213c161ab4d3d9ac3c434b4c86e5aaec0a7dd064fe69fd2ad95baec0","cross_cats_sorted":["cs.MS","cs.SE"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"stat.CO","submitted_at":"2014-01-28T23:57:02Z","title_canon_sha256":"7728a1e52694fc395e432b70add5c1a0ce0113126193c79c91f664b08bc1c240"},"schema_version":"1.0","source":{"id":"1401.7372","kind":"arxiv","version":1}},"canonical_sha256":"a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a574c89d2757403756d4e2f3479b9f97cf367147059856c2c4444b2c22ad2bba","first_computed_at":"2026-05-18T01:10:33.690007Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:33.690007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3xIeOyF3m56KIzEaSXWIn4htKNfO9bXt/9mjo0gL3jcIb2gdDT0Im6qdFd1/XmhP8s+qY40PGUwJXb19iv/cBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:33.690722Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.7372","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18d1c3febf8f8f7e21e627c5d91f73d4ae407300b6cdef91e36fe37f49975a05","sha256:e5ed96af9838112e2be9a6b708686b97dda16b8a09e181230d0d8d7ad9abc178"],"state_sha256":"fdf5edab8d5fefc957ecf174402b8a49bf5b340e58e62131a582e0db8c8429b1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WbPFt18yuGaQqy4OdAu9jN1lOjdOzcLM6NzrpS7CrAgCC97Uhn8aeGsC0LRY6m+rSu9cao3TcNEaLM45AVHYAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T13:28:05.531784Z","bundle_sha256":"8650e143f74f18d437aac0fb209ca32c5710474f0cec0bfa154521b47246bc09"}}