{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:X2OP5AUKPFDRKNIWH2FGZW3W2Q","short_pith_number":"pith:X2OP5AUK","canonical_record":{"source":{"id":"1603.06021","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2016-03-19T00:22:20Z","cross_cats_sorted":[],"title_canon_sha256":"922757d9e78fdfc37e8383b0b5392bc5eed4686dc77e3efca0d98964eb62a268","abstract_canon_sha256":"02c2e29a9d47c5f28cba2d9d148ce9697d64f12efd4559461e8cb41106b74174"},"schema_version":"1.0"},"canonical_sha256":"be9cfe828a79471535163e8a6cdb76d406d5a3e7938241af7d7e9088686c6278","source":{"kind":"arxiv","id":"1603.06021","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.06021","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"arxiv_version","alias_value":"1603.06021v3","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.06021","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"pith_short_12","alias_value":"X2OP5AUKPFDR","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"X2OP5AUKPFDRKNIW","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"X2OP5AUK","created_at":"2026-05-18T12:30:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:X2OP5AUKPFDRKNIWH2FGZW3W2Q","target":"record","payload":{"canonical_record":{"source":{"id":"1603.06021","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2016-03-19T00:22:20Z","cross_cats_sorted":[],"title_canon_sha256":"922757d9e78fdfc37e8383b0b5392bc5eed4686dc77e3efca0d98964eb62a268","abstract_canon_sha256":"02c2e29a9d47c5f28cba2d9d148ce9697d64f12efd4559461e8cb41106b74174"},"schema_version":"1.0"},"canonical_sha256":"be9cfe828a79471535163e8a6cdb76d406d5a3e7938241af7d7e9088686c6278","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:10:17.961566Z","signature_b64":"JA9Qv7bEO4AOgfLIiFDnq0GGg86tYjbh9/8WlGG1gjPfnH05LNasiK3PeH7uaSAi3j6sWV6iFs6IrAFXt0N1BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be9cfe828a79471535163e8a6cdb76d406d5a3e7938241af7d7e9088686c6278","last_reissued_at":"2026-05-18T01:10:17.960997Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:10:17.960997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1603.06021","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:10:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51/tM/hEA5NOt0zkfuuXqCCwBeryi+Fo3RiRQMUjMNzi9fn6DqJqQ+p9P3lj80142bzli03zcgGLc26unOIsBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:30:33.413216Z"},"content_sha256":"89bbe7ea0149a8b46494fda3260a909a2b52681770f2968541a99b9e3bc09f98","schema_version":"1.0","event_id":"sha256:89bbe7ea0149a8b46494fda3260a909a2b52681770f2968541a99b9e3bc09f98"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:X2OP5AUKPFDRKNIWH2FGZW3W2Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Fast Unified Model for Parsing and Sentence Understanding","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Abhinav Rastogi, Christopher D. Manning, Christopher Potts, Jon Gauthier, Raghav Gupta, Samuel R. Bowman","submitted_at":"2016-03-19T00:22:20Z","abstract_excerpt":"Tree-structured neural networks exploit valuable syntactic parse information as they interpret the meanings of sentences. However, they suffer from two key technical problems that make them slow and unwieldy for large-scale NLP tasks: they usually operate on parsed sentences and they do not directly support batched computation. We address these issues by introducing the Stack-augmented Parser-Interpreter Neural Network (SPINN), which combines parsing and interpretation within a single tree-sequence hybrid model by integrating tree-structured sentence interpretation into the linear sequential s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.06021","kind":"arxiv","version":3},"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":"2026-05-18T01:10:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oux5jf8H3PXf/9lo8+QRct8tiBkJpNt7DXGWpRvxYylUGNFGGCqs7jQaNKulxRfzOosZK5UmcKZ9aKpy4PS8Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:30:33.413898Z"},"content_sha256":"e39e813bde4de9bc51d904eecde276ca14614855585b4fe5fceb8882fca765a1","schema_version":"1.0","event_id":"sha256:e39e813bde4de9bc51d904eecde276ca14614855585b4fe5fceb8882fca765a1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/bundle.json","state_url":"https://pith.science/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/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":"2026-05-25T20:30:33Z","links":{"resolver":"https://pith.science/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q","bundle":"https://pith.science/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/bundle.json","state":"https://pith.science/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X2OP5AUKPFDRKNIWH2FGZW3W2Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:X2OP5AUKPFDRKNIWH2FGZW3W2Q","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":"02c2e29a9d47c5f28cba2d9d148ce9697d64f12efd4559461e8cb41106b74174","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2016-03-19T00:22:20Z","title_canon_sha256":"922757d9e78fdfc37e8383b0b5392bc5eed4686dc77e3efca0d98964eb62a268"},"schema_version":"1.0","source":{"id":"1603.06021","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1603.06021","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"arxiv_version","alias_value":"1603.06021v3","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.06021","created_at":"2026-05-18T01:10:17Z"},{"alias_kind":"pith_short_12","alias_value":"X2OP5AUKPFDR","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_16","alias_value":"X2OP5AUKPFDRKNIW","created_at":"2026-05-18T12:30:51Z"},{"alias_kind":"pith_short_8","alias_value":"X2OP5AUK","created_at":"2026-05-18T12:30:51Z"}],"graph_snapshots":[{"event_id":"sha256:e39e813bde4de9bc51d904eecde276ca14614855585b4fe5fceb8882fca765a1","target":"graph","created_at":"2026-05-18T01:10:17Z","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":"Tree-structured neural networks exploit valuable syntactic parse information as they interpret the meanings of sentences. However, they suffer from two key technical problems that make them slow and unwieldy for large-scale NLP tasks: they usually operate on parsed sentences and they do not directly support batched computation. We address these issues by introducing the Stack-augmented Parser-Interpreter Neural Network (SPINN), which combines parsing and interpretation within a single tree-sequence hybrid model by integrating tree-structured sentence interpretation into the linear sequential s","authors_text":"Abhinav Rastogi, Christopher D. Manning, Christopher Potts, Jon Gauthier, Raghav Gupta, Samuel R. Bowman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2016-03-19T00:22:20Z","title":"A Fast Unified Model for Parsing and Sentence Understanding"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.06021","kind":"arxiv","version":3},"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":"sha256:89bbe7ea0149a8b46494fda3260a909a2b52681770f2968541a99b9e3bc09f98","target":"record","created_at":"2026-05-18T01:10:17Z","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":"02c2e29a9d47c5f28cba2d9d148ce9697d64f12efd4559461e8cb41106b74174","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2016-03-19T00:22:20Z","title_canon_sha256":"922757d9e78fdfc37e8383b0b5392bc5eed4686dc77e3efca0d98964eb62a268"},"schema_version":"1.0","source":{"id":"1603.06021","kind":"arxiv","version":3}},"canonical_sha256":"be9cfe828a79471535163e8a6cdb76d406d5a3e7938241af7d7e9088686c6278","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be9cfe828a79471535163e8a6cdb76d406d5a3e7938241af7d7e9088686c6278","first_computed_at":"2026-05-18T01:10:17.960997Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:10:17.960997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JA9Qv7bEO4AOgfLIiFDnq0GGg86tYjbh9/8WlGG1gjPfnH05LNasiK3PeH7uaSAi3j6sWV6iFs6IrAFXt0N1BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:10:17.961566Z","signed_message":"canonical_sha256_bytes"},"source_id":"1603.06021","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89bbe7ea0149a8b46494fda3260a909a2b52681770f2968541a99b9e3bc09f98","sha256:e39e813bde4de9bc51d904eecde276ca14614855585b4fe5fceb8882fca765a1"],"state_sha256":"edf9de3c6fe2281b26d8410f23217b58f038ebe580e9b2f0e6a857825b87489e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"irZTa5EgYEfHVFd1EWQyQE2r5xyrcvwlCEsLvpHmrF9QZ7dipsPYBk6jcm0NXKWI6fiZTrckgqNXRIq4pfFzDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:30:33.417599Z","bundle_sha256":"50388a870dd6c376094b32ab38502f281e1644dc26f3d76c15ccc9beed8bd6ad"}}