{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:VUIDAIFDMQKNXUZMT4GLD35QX5","short_pith_number":"pith:VUIDAIFD","canonical_record":{"source":{"id":"2501.01416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-01-02T18:57:59Z","cross_cats_sorted":[],"title_canon_sha256":"6ecea3c0fdbc533075c145f8745faf341952ebaff1943a76f066b71634bd136a","abstract_canon_sha256":"be20422e4a98152b4ef4b9b06564af59f0b296d9079161be7f2363c464e90e94"},"schema_version":"1.0"},"canonical_sha256":"ad103020a36414dbd32c9f0cb1efb0bf66a44447f599dbc358407566ba2db8e9","source":{"kind":"arxiv","id":"2501.01416","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.01416","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"arxiv_version","alias_value":"2501.01416v1","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.01416","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_12","alias_value":"VUIDAIFDMQKN","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_16","alias_value":"VUIDAIFDMQKNXUZM","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_8","alias_value":"VUIDAIFD","created_at":"2026-07-05T09:56:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:VUIDAIFDMQKNXUZMT4GLD35QX5","target":"record","payload":{"canonical_record":{"source":{"id":"2501.01416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-01-02T18:57:59Z","cross_cats_sorted":[],"title_canon_sha256":"6ecea3c0fdbc533075c145f8745faf341952ebaff1943a76f066b71634bd136a","abstract_canon_sha256":"be20422e4a98152b4ef4b9b06564af59f0b296d9079161be7f2363c464e90e94"},"schema_version":"1.0"},"canonical_sha256":"ad103020a36414dbd32c9f0cb1efb0bf66a44447f599dbc358407566ba2db8e9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:56:19.488341Z","signature_b64":"cE0ePXTNAn77lToaDZsHchAcTP5HbUgCrFwT710sHGCEnnLoA04HDgQ19fvqXVfPaLXVQ3iVyKsnE8PtcAQ5Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad103020a36414dbd32c9f0cb1efb0bf66a44447f599dbc358407566ba2db8e9","last_reissued_at":"2026-07-05T09:56:19.487838Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:56:19.487838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2501.01416","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":"2026-07-05T09:56:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mdGqqrbeUfhwlz4hUd1Pb/5ePfaaTO6/hflwkFELEa8nvmzFBxgoRE9yDmySfNcbeukG8u3VfrdBNCnfCNIpDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T14:01:57.338057Z"},"content_sha256":"70d0f8ddd3e89cf1f113c25f63c27de19bbaf020030378691e4538a58dcbec17","schema_version":"1.0","event_id":"sha256:70d0f8ddd3e89cf1f113c25f63c27de19bbaf020030378691e4538a58dcbec17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:VUIDAIFDMQKNXUZMT4GLD35QX5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hierarchical Alignment-enhanced Adaptive Grounding Network for Generalized Referring Expression Comprehension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Bifan Wei, Henghui Ding, Jun Liu, Shuting He, Xudong Jiang, Yaxian Wang","submitted_at":"2025-01-02T18:57:59Z","abstract_excerpt":"In this work, we address the challenging task of Generalized Referring Expression Comprehension (GREC). Compared to the classic Referring Expression Comprehension (REC) that focuses on single-target expressions, GREC extends the scope to a more practical setting by further encompassing no-target and multi-target expressions. Existing REC methods face challenges in handling the complex cases encountered in GREC, primarily due to their fixed output and limitations in multi-modal representations. To address these issues, we propose a Hierarchical Alignment-enhanced Adaptive Grounding Network (Hie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.01416","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/2501.01416/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":"2026-07-05T09:56:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s4ZMkXCGKL3GtaqYeBn7MWQuoGXfFiFRdC0jiFBKzayJxXK8MFWiM8roquHO+ug6DLUgYB1Ix9Fu1GlKgDBpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T14:01:57.338573Z"},"content_sha256":"de82b5c4cc52811d87451a160f57e71567c52af3afae5aca2b7fa5ad23261d8a","schema_version":"1.0","event_id":"sha256:de82b5c4cc52811d87451a160f57e71567c52af3afae5aca2b7fa5ad23261d8a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/bundle.json","state_url":"https://pith.science/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/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":"2026-08-09T14:01:57Z","links":{"resolver":"https://pith.science/pith/VUIDAIFDMQKNXUZMT4GLD35QX5","bundle":"https://pith.science/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/bundle.json","state":"https://pith.science/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VUIDAIFDMQKNXUZMT4GLD35QX5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:VUIDAIFDMQKNXUZMT4GLD35QX5","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":"be20422e4a98152b4ef4b9b06564af59f0b296d9079161be7f2363c464e90e94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-01-02T18:57:59Z","title_canon_sha256":"6ecea3c0fdbc533075c145f8745faf341952ebaff1943a76f066b71634bd136a"},"schema_version":"1.0","source":{"id":"2501.01416","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2501.01416","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"arxiv_version","alias_value":"2501.01416v1","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2501.01416","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_12","alias_value":"VUIDAIFDMQKN","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_16","alias_value":"VUIDAIFDMQKNXUZM","created_at":"2026-07-05T09:56:19Z"},{"alias_kind":"pith_short_8","alias_value":"VUIDAIFD","created_at":"2026-07-05T09:56:19Z"}],"graph_snapshots":[{"event_id":"sha256:de82b5c4cc52811d87451a160f57e71567c52af3afae5aca2b7fa5ad23261d8a","target":"graph","created_at":"2026-07-05T09:56:19Z","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/2501.01416/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this work, we address the challenging task of Generalized Referring Expression Comprehension (GREC). Compared to the classic Referring Expression Comprehension (REC) that focuses on single-target expressions, GREC extends the scope to a more practical setting by further encompassing no-target and multi-target expressions. Existing REC methods face challenges in handling the complex cases encountered in GREC, primarily due to their fixed output and limitations in multi-modal representations. To address these issues, we propose a Hierarchical Alignment-enhanced Adaptive Grounding Network (Hie","authors_text":"Bifan Wei, Henghui Ding, Jun Liu, Shuting He, Xudong Jiang, Yaxian Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-01-02T18:57:59Z","title":"Hierarchical Alignment-enhanced Adaptive Grounding Network for Generalized Referring Expression Comprehension"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2501.01416","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":"sha256:70d0f8ddd3e89cf1f113c25f63c27de19bbaf020030378691e4538a58dcbec17","target":"record","created_at":"2026-07-05T09:56:19Z","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":"be20422e4a98152b4ef4b9b06564af59f0b296d9079161be7f2363c464e90e94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2025-01-02T18:57:59Z","title_canon_sha256":"6ecea3c0fdbc533075c145f8745faf341952ebaff1943a76f066b71634bd136a"},"schema_version":"1.0","source":{"id":"2501.01416","kind":"arxiv","version":1}},"canonical_sha256":"ad103020a36414dbd32c9f0cb1efb0bf66a44447f599dbc358407566ba2db8e9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad103020a36414dbd32c9f0cb1efb0bf66a44447f599dbc358407566ba2db8e9","first_computed_at":"2026-07-05T09:56:19.487838Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:56:19.487838Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cE0ePXTNAn77lToaDZsHchAcTP5HbUgCrFwT710sHGCEnnLoA04HDgQ19fvqXVfPaLXVQ3iVyKsnE8PtcAQ5Dw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:56:19.488341Z","signed_message":"canonical_sha256_bytes"},"source_id":"2501.01416","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:70d0f8ddd3e89cf1f113c25f63c27de19bbaf020030378691e4538a58dcbec17","sha256:de82b5c4cc52811d87451a160f57e71567c52af3afae5aca2b7fa5ad23261d8a"],"state_sha256":"6018cad708b6248c34fd79db932553adbaf897c1dd7bf3a318e45fd395df59fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LHzievAP67PTsMV/nRHtoQiBPTmetPIdq37RDq8l3N5kxV511iUNG06Ipw2wWKBAyPtDBVFx7qOu/4lnQnJNAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T14:01:57.343843Z","bundle_sha256":"a620e4c8a5a0e18e2920932e654576f903c93d31c0f57a260ddbb01f47256b44"}}