{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MJJDWLOKERRWDAA3LDLW7RILXP","short_pith_number":"pith:MJJDWLOK","canonical_record":{"source":{"id":"1409.3531","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-09-09T10:34:09Z","cross_cats_sorted":["cs.PL","cs.SE","stat.CO"],"title_canon_sha256":"86bef94cda3a461488878c70f3e20047e391311db81775af797c1b50423a2a7e","abstract_canon_sha256":"94cbf6d86b69b1b540425359dabdd19bd2d34951496b6a3f5f4f7b869e80c4b4"},"schema_version":"1.0"},"canonical_sha256":"62523b2dca246361801b58d76fc50bbbc663b1dc371f2e214ba2bcb8a718cd61","source":{"kind":"arxiv","id":"1409.3531","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3531","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3531v1","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3531","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"pith_short_12","alias_value":"MJJDWLOKERRW","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MJJDWLOKERRWDAA3","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MJJDWLOK","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MJJDWLOKERRWDAA3LDLW7RILXP","target":"record","payload":{"canonical_record":{"source":{"id":"1409.3531","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-09-09T10:34:09Z","cross_cats_sorted":["cs.PL","cs.SE","stat.CO"],"title_canon_sha256":"86bef94cda3a461488878c70f3e20047e391311db81775af797c1b50423a2a7e","abstract_canon_sha256":"94cbf6d86b69b1b540425359dabdd19bd2d34951496b6a3f5f4f7b869e80c4b4"},"schema_version":"1.0"},"canonical_sha256":"62523b2dca246361801b58d76fc50bbbc663b1dc371f2e214ba2bcb8a718cd61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:43:01.111072Z","signature_b64":"vFoIwGen3Z7MyzB5+j1YKNNAJtCbAmHmioT/ddiEXWKibbUivgT2HL0EXOQzQ1AmnGfWnLrSl3mACNGLfgFYCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62523b2dca246361801b58d76fc50bbbc663b1dc371f2e214ba2bcb8a718cd61","last_reissued_at":"2026-05-18T02:43:01.110597Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:43:01.110597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.3531","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":"2026-05-18T02:43:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aXuMdB9QxBRXizJMXx9Uos06g/IZEZ3jy2WHPFfE5Myuqg2vZJNY0SY0ei/++h/IQu5A0kG94T5wUwLg6TOnDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T08:09:15.099164Z"},"content_sha256":"ee167e999ffd16763c3b274719648000eb7e7f940c5aca9b0b71e4b430aebc89","schema_version":"1.0","event_id":"sha256:ee167e999ffd16763c3b274719648000eb7e7f940c5aca9b0b71e4b430aebc89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MJJDWLOKERRWDAA3LDLW7RILXP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Object-Oriented Programming, Functional Programming and R","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.PL","cs.SE","stat.CO"],"primary_cat":"stat.ME","authors_text":"John M. Chambers","submitted_at":"2014-09-09T10:34:09Z","abstract_excerpt":"This paper reviews some programming techniques in R that have proved useful, particularly for substantial projects. These include several versions of object-oriented programming, used in a large number of R packages. The review tries to clarify the origins and ideas behind the various versions, each of which is valuable in the appropriate context. R has also been strongly influenced by the ideas of functional programming and, in particular, by the desire to combine functional with object oriented programming. To clarify how this particular mix of ideas has turned out in the current R language "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3531","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":"2026-05-18T02:43:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jNdfC0QqZLGsZxO2NBvTXYlXUgshKZCRi9jAQUDSl5Z8sIbuy1FSJjrQ5PdBBcmnVW2SGcp+fAPlB6wimfVeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T08:09:15.099532Z"},"content_sha256":"e16447b1a86c7f8e493458d0eb01ebbc14ec5766463ca17f4dc3f52b38ffbddb","schema_version":"1.0","event_id":"sha256:e16447b1a86c7f8e493458d0eb01ebbc14ec5766463ca17f4dc3f52b38ffbddb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJJDWLOKERRWDAA3LDLW7RILXP/bundle.json","state_url":"https://pith.science/pith/MJJDWLOKERRWDAA3LDLW7RILXP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJJDWLOKERRWDAA3LDLW7RILXP/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":"2026-06-25T08:09:15Z","links":{"resolver":"https://pith.science/pith/MJJDWLOKERRWDAA3LDLW7RILXP","bundle":"https://pith.science/pith/MJJDWLOKERRWDAA3LDLW7RILXP/bundle.json","state":"https://pith.science/pith/MJJDWLOKERRWDAA3LDLW7RILXP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJJDWLOKERRWDAA3LDLW7RILXP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MJJDWLOKERRWDAA3LDLW7RILXP","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":"94cbf6d86b69b1b540425359dabdd19bd2d34951496b6a3f5f4f7b869e80c4b4","cross_cats_sorted":["cs.PL","cs.SE","stat.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-09-09T10:34:09Z","title_canon_sha256":"86bef94cda3a461488878c70f3e20047e391311db81775af797c1b50423a2a7e"},"schema_version":"1.0","source":{"id":"1409.3531","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.3531","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"arxiv_version","alias_value":"1409.3531v1","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.3531","created_at":"2026-05-18T02:43:01Z"},{"alias_kind":"pith_short_12","alias_value":"MJJDWLOKERRW","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MJJDWLOKERRWDAA3","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MJJDWLOK","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:e16447b1a86c7f8e493458d0eb01ebbc14ec5766463ca17f4dc3f52b38ffbddb","target":"graph","created_at":"2026-05-18T02:43:01Z","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":"This paper reviews some programming techniques in R that have proved useful, particularly for substantial projects. These include several versions of object-oriented programming, used in a large number of R packages. The review tries to clarify the origins and ideas behind the various versions, each of which is valuable in the appropriate context. R has also been strongly influenced by the ideas of functional programming and, in particular, by the desire to combine functional with object oriented programming. To clarify how this particular mix of ideas has turned out in the current R language ","authors_text":"John M. Chambers","cross_cats":["cs.PL","cs.SE","stat.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-09-09T10:34:09Z","title":"Object-Oriented Programming, Functional Programming and R"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.3531","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:ee167e999ffd16763c3b274719648000eb7e7f940c5aca9b0b71e4b430aebc89","target":"record","created_at":"2026-05-18T02:43:01Z","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":"94cbf6d86b69b1b540425359dabdd19bd2d34951496b6a3f5f4f7b869e80c4b4","cross_cats_sorted":["cs.PL","cs.SE","stat.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2014-09-09T10:34:09Z","title_canon_sha256":"86bef94cda3a461488878c70f3e20047e391311db81775af797c1b50423a2a7e"},"schema_version":"1.0","source":{"id":"1409.3531","kind":"arxiv","version":1}},"canonical_sha256":"62523b2dca246361801b58d76fc50bbbc663b1dc371f2e214ba2bcb8a718cd61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62523b2dca246361801b58d76fc50bbbc663b1dc371f2e214ba2bcb8a718cd61","first_computed_at":"2026-05-18T02:43:01.110597Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:43:01.110597Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vFoIwGen3Z7MyzB5+j1YKNNAJtCbAmHmioT/ddiEXWKibbUivgT2HL0EXOQzQ1AmnGfWnLrSl3mACNGLfgFYCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:43:01.111072Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.3531","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee167e999ffd16763c3b274719648000eb7e7f940c5aca9b0b71e4b430aebc89","sha256:e16447b1a86c7f8e493458d0eb01ebbc14ec5766463ca17f4dc3f52b38ffbddb"],"state_sha256":"711cde7a1a0bd4eda790be46dacb80703d09154d98b764ff5f363b012fd2c296"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ktsbBa9JAjrhM9S5YlLcyv++k4fDiQgT3cCxsKPXEbfrq4E+EtPvg9zCsQt2eJjiZgaUhgFnP3IALFVUR19WCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T08:09:15.101494Z","bundle_sha256":"2fddad23be38a03b48023dc792f7b0893b4605fcc23519df09e88eee5b9d260c"}}