{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VJIXI4WLQYE3KRNUKPKHI43SO2","short_pith_number":"pith:VJIXI4WL","canonical_record":{"source":{"id":"1511.07394","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-23T20:17:18Z","cross_cats_sorted":[],"title_canon_sha256":"64f6190701f2e0eeb94631b34df84d26dfc71de05fb3e5c64892b66466c889be","abstract_canon_sha256":"baee9071e60b6179435fedd9e586a76ef34fa1ba3187e3294136658f1817f13a"},"schema_version":"1.0"},"canonical_sha256":"aa517472cb8609b545b453d4747372768509695fa35aca554b5952ce0190f1eb","source":{"kind":"arxiv","id":"1511.07394","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07394","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07394v2","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07394","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"pith_short_12","alias_value":"VJIXI4WLQYE3","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VJIXI4WLQYE3KRNU","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VJIXI4WL","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VJIXI4WLQYE3KRNUKPKHI43SO2","target":"record","payload":{"canonical_record":{"source":{"id":"1511.07394","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-23T20:17:18Z","cross_cats_sorted":[],"title_canon_sha256":"64f6190701f2e0eeb94631b34df84d26dfc71de05fb3e5c64892b66466c889be","abstract_canon_sha256":"baee9071e60b6179435fedd9e586a76ef34fa1ba3187e3294136658f1817f13a"},"schema_version":"1.0"},"canonical_sha256":"aa517472cb8609b545b453d4747372768509695fa35aca554b5952ce0190f1eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:07.867196Z","signature_b64":"8XDVTc0UC+DbUh2T4sBHps8OZhE5dAV9dh7F7XUXzsiM2M/PUNnmyMdD86/xG4E6Gq7hQovjP5ZpTfhrRBIODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa517472cb8609b545b453d4747372768509695fa35aca554b5952ce0190f1eb","last_reissued_at":"2026-05-18T01:23:07.866584Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:07.866584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.07394","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:23:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fGTWgfqt22axdKLqTrDUZ9+g+wWK2E+rQMr3wWw8UdljyXvWe0lL42hCP2yXhMRrf77T7y5hSD8vqzLeliWMBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T09:17:50.754191Z"},"content_sha256":"56efaced466d0393bff3f8f1e8138a4ac23f259128f32af5089054d5bf4f0178","schema_version":"1.0","event_id":"sha256:56efaced466d0393bff3f8f1e8138a4ac23f259128f32af5089054d5bf4f0178"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VJIXI4WLQYE3KRNUKPKHI43SO2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Where To Look: Focus Regions for Visual Question Answering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Derek Hoiem, Kevin J. Shih, Saurabh Singh","submitted_at":"2015-11-23T20:17:18Z","abstract_excerpt":"We present a method that learns to answer visual questions by selecting image regions relevant to the text-based query. Our method exhibits significant improvements in answering questions such as \"what color,\" where it is necessary to evaluate a specific location, and \"what room,\" where it selectively identifies informative image regions. Our model is tested on the VQA dataset which is the largest human-annotated visual question answering dataset to our knowledge."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07394","kind":"arxiv","version":2},"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":"2026-05-18T01:23:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LG6pDGRPjwmkJuvlHN2VQZszrKrxezhmWR8UHgHLqGBMn77yfu2ft6em0RxWroghUgUW9LePHRxCW40OVGwADA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T09:17:50.754924Z"},"content_sha256":"99417c7da155a5cd1dc7e665035303395689262c77ef151069ff4a651bc4ed1d","schema_version":"1.0","event_id":"sha256:99417c7da155a5cd1dc7e665035303395689262c77ef151069ff4a651bc4ed1d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/bundle.json","state_url":"https://pith.science/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/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":"2026-06-09T09:17:50Z","links":{"resolver":"https://pith.science/pith/VJIXI4WLQYE3KRNUKPKHI43SO2","bundle":"https://pith.science/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/bundle.json","state":"https://pith.science/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VJIXI4WLQYE3KRNUKPKHI43SO2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VJIXI4WLQYE3KRNUKPKHI43SO2","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":"baee9071e60b6179435fedd9e586a76ef34fa1ba3187e3294136658f1817f13a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-23T20:17:18Z","title_canon_sha256":"64f6190701f2e0eeb94631b34df84d26dfc71de05fb3e5c64892b66466c889be"},"schema_version":"1.0","source":{"id":"1511.07394","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.07394","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"arxiv_version","alias_value":"1511.07394v2","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.07394","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"pith_short_12","alias_value":"VJIXI4WLQYE3","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"VJIXI4WLQYE3KRNU","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"VJIXI4WL","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:99417c7da155a5cd1dc7e665035303395689262c77ef151069ff4a651bc4ed1d","target":"graph","created_at":"2026-05-18T01:23:07Z","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":"We present a method that learns to answer visual questions by selecting image regions relevant to the text-based query. Our method exhibits significant improvements in answering questions such as \"what color,\" where it is necessary to evaluate a specific location, and \"what room,\" where it selectively identifies informative image regions. Our model is tested on the VQA dataset which is the largest human-annotated visual question answering dataset to our knowledge.","authors_text":"Derek Hoiem, Kevin J. Shih, Saurabh Singh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-23T20:17:18Z","title":"Where To Look: Focus Regions for Visual Question Answering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.07394","kind":"arxiv","version":2},"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":"sha256:56efaced466d0393bff3f8f1e8138a4ac23f259128f32af5089054d5bf4f0178","target":"record","created_at":"2026-05-18T01:23:07Z","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":"baee9071e60b6179435fedd9e586a76ef34fa1ba3187e3294136658f1817f13a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2015-11-23T20:17:18Z","title_canon_sha256":"64f6190701f2e0eeb94631b34df84d26dfc71de05fb3e5c64892b66466c889be"},"schema_version":"1.0","source":{"id":"1511.07394","kind":"arxiv","version":2}},"canonical_sha256":"aa517472cb8609b545b453d4747372768509695fa35aca554b5952ce0190f1eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa517472cb8609b545b453d4747372768509695fa35aca554b5952ce0190f1eb","first_computed_at":"2026-05-18T01:23:07.866584Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:07.866584Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8XDVTc0UC+DbUh2T4sBHps8OZhE5dAV9dh7F7XUXzsiM2M/PUNnmyMdD86/xG4E6Gq7hQovjP5ZpTfhrRBIODQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:07.867196Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.07394","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56efaced466d0393bff3f8f1e8138a4ac23f259128f32af5089054d5bf4f0178","sha256:99417c7da155a5cd1dc7e665035303395689262c77ef151069ff4a651bc4ed1d"],"state_sha256":"d6d573d900e7e4f8db4b1c63fba86f3d58a4e1ffed723a2ffcec5b32da6416da"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mi440IL8UTw4WXvXGCQxhcJXFaKz27ZdrJWRrRs6JtsINSN1yFtJ7TyfXuL4/B9mEPT/zaof9YAzLm3kgrNAAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T09:17:50.759221Z","bundle_sha256":"b608e76fac530583b50f2e5702f21d14d22c4de27b420c15b9eb2227ab52dd8f"}}