{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:MA5YMUP2POYU6RF2AZS5ZDJX6D","short_pith_number":"pith:MA5YMUP2","canonical_record":{"source":{"id":"2106.00261","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2021-06-01T06:52:41Z","cross_cats_sorted":[],"title_canon_sha256":"db20b4b169de10fd8a13a3ad7733db58e5bc42f8f432a2ca7fcd21b0c120758e","abstract_canon_sha256":"8c123f1a1b05c66ef7c25f4f1e2f5a36ef59c0540263d8a0f5ebb40f76daa452"},"schema_version":"1.0"},"canonical_sha256":"603b8651fa7bb14f44ba0665dc8d37f0f4044be78312dd09106f3fac004253dc","source":{"kind":"arxiv","id":"2106.00261","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.00261","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"arxiv_version","alias_value":"2106.00261v1","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.00261","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_12","alias_value":"MA5YMUP2POYU","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_16","alias_value":"MA5YMUP2POYU6RF2","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_8","alias_value":"MA5YMUP2","created_at":"2026-07-05T02:45:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:MA5YMUP2POYU6RF2AZS5ZDJX6D","target":"record","payload":{"canonical_record":{"source":{"id":"2106.00261","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2021-06-01T06:52:41Z","cross_cats_sorted":[],"title_canon_sha256":"db20b4b169de10fd8a13a3ad7733db58e5bc42f8f432a2ca7fcd21b0c120758e","abstract_canon_sha256":"8c123f1a1b05c66ef7c25f4f1e2f5a36ef59c0540263d8a0f5ebb40f76daa452"},"schema_version":"1.0"},"canonical_sha256":"603b8651fa7bb14f44ba0665dc8d37f0f4044be78312dd09106f3fac004253dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:45:02.662755Z","signature_b64":"VopubY8SrJ62lh6wrtn5yxoJ0ygVOXTS8siTQ4hD+SEvOf28Rce/aqHEbpKITk6YSMzIZVeZNwNO3+ibFXgdCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"603b8651fa7bb14f44ba0665dc8d37f0f4044be78312dd09106f3fac004253dc","last_reissued_at":"2026-07-05T02:45:02.662284Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:45:02.662284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.00261","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":"2026-07-05T02:45:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2yY8cHyo70Tu6uXtIGZaKigH6iJ9L5WaTkh4EOBhtkw/UKbxjaneC2U4kPw007ox97yVpfP6K/heY2yUWMyyCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T15:08:30.064976Z"},"content_sha256":"d1e7185a1462b45cabaf34925c9800b161c5a4c84076fe33fb5151d243880d8b","schema_version":"1.0","event_id":"sha256:d1e7185a1462b45cabaf34925c9800b161c5a4c84076fe33fb5151d243880d8b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:MA5YMUP2POYU6RF2AZS5ZDJX6D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring Dynamic Selection of Branch Expansion Orders for Code Generation","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Biao Zhang, Chulun Zhou, Degen Huang, Fandong Meng, Hui Jiang, Jie Zhou, Jinsong Su, Qingqiang Wu","submitted_at":"2021-06-01T06:52:41Z","abstract_excerpt":"Due to the great potential in facilitating software development, code generation has attracted increasing attention recently. Generally, dominant models are Seq2Tree models, which convert the input natural language description into a sequence of tree-construction actions corresponding to the pre-order traversal of an Abstract Syntax Tree (AST). However, such a traversal order may not be suitable for handling all multi-branch nodes. In this paper, we propose to equip the Seq2Tree model with a context-based Branch Selector, which is able to dynamically determine optimal expansion orders of branc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.00261","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.00261/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:45:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r9rlhgAzi7rM/ulr14ahYs0lRj+liueobsoUkCndCa+hylgF+hqOfkdDV/J2PYMDMvwuS0kf6QZMEuYEYvzoAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-22T15:08:30.065352Z"},"content_sha256":"0aa1a60829680fd63c72fc410fad3cc7e1429267e9472bc46d95fd9769f9beaa","schema_version":"1.0","event_id":"sha256:0aa1a60829680fd63c72fc410fad3cc7e1429267e9472bc46d95fd9769f9beaa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/bundle.json","state_url":"https://pith.science/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/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":"2026-07-22T15:08:30Z","links":{"resolver":"https://pith.science/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D","bundle":"https://pith.science/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/bundle.json","state":"https://pith.science/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MA5YMUP2POYU6RF2AZS5ZDJX6D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:MA5YMUP2POYU6RF2AZS5ZDJX6D","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":"8c123f1a1b05c66ef7c25f4f1e2f5a36ef59c0540263d8a0f5ebb40f76daa452","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2021-06-01T06:52:41Z","title_canon_sha256":"db20b4b169de10fd8a13a3ad7733db58e5bc42f8f432a2ca7fcd21b0c120758e"},"schema_version":"1.0","source":{"id":"2106.00261","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.00261","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"arxiv_version","alias_value":"2106.00261v1","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.00261","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_12","alias_value":"MA5YMUP2POYU","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_16","alias_value":"MA5YMUP2POYU6RF2","created_at":"2026-07-05T02:45:02Z"},{"alias_kind":"pith_short_8","alias_value":"MA5YMUP2","created_at":"2026-07-05T02:45:02Z"}],"graph_snapshots":[{"event_id":"sha256:0aa1a60829680fd63c72fc410fad3cc7e1429267e9472bc46d95fd9769f9beaa","target":"graph","created_at":"2026-07-05T02:45:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.00261/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Due to the great potential in facilitating software development, code generation has attracted increasing attention recently. Generally, dominant models are Seq2Tree models, which convert the input natural language description into a sequence of tree-construction actions corresponding to the pre-order traversal of an Abstract Syntax Tree (AST). However, such a traversal order may not be suitable for handling all multi-branch nodes. In this paper, we propose to equip the Seq2Tree model with a context-based Branch Selector, which is able to dynamically determine optimal expansion orders of branc","authors_text":"Biao Zhang, Chulun Zhou, Degen Huang, Fandong Meng, Hui Jiang, Jie Zhou, Jinsong Su, Qingqiang Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2021-06-01T06:52:41Z","title":"Exploring Dynamic Selection of Branch Expansion Orders for Code Generation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.00261","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:d1e7185a1462b45cabaf34925c9800b161c5a4c84076fe33fb5151d243880d8b","target":"record","created_at":"2026-07-05T02:45:02Z","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":"8c123f1a1b05c66ef7c25f4f1e2f5a36ef59c0540263d8a0f5ebb40f76daa452","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2021-06-01T06:52:41Z","title_canon_sha256":"db20b4b169de10fd8a13a3ad7733db58e5bc42f8f432a2ca7fcd21b0c120758e"},"schema_version":"1.0","source":{"id":"2106.00261","kind":"arxiv","version":1}},"canonical_sha256":"603b8651fa7bb14f44ba0665dc8d37f0f4044be78312dd09106f3fac004253dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"603b8651fa7bb14f44ba0665dc8d37f0f4044be78312dd09106f3fac004253dc","first_computed_at":"2026-07-05T02:45:02.662284Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:45:02.662284Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VopubY8SrJ62lh6wrtn5yxoJ0ygVOXTS8siTQ4hD+SEvOf28Rce/aqHEbpKITk6YSMzIZVeZNwNO3+ibFXgdCg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:45:02.662755Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.00261","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1e7185a1462b45cabaf34925c9800b161c5a4c84076fe33fb5151d243880d8b","sha256:0aa1a60829680fd63c72fc410fad3cc7e1429267e9472bc46d95fd9769f9beaa"],"state_sha256":"18f3ca6b85b08de4cf269b4e483cf9ca06b4d63c5e808477fa18e19f3a4dbdc6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HFEsDqhonYnW+rGe3vVPg57NN6NralYIB0edT+oQV5o80TawqNcovBZRONtdSzM5inHVQu3b0MT+x53VKne+Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-22T15:08:30.067284Z","bundle_sha256":"a42a89afb3dfcef30dc8bd58bb5f67e96cc92ccd9699077f0938169bc2861ddc"}}