{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:AZ4UP6CWGJGC2I2GCKNYIQ3REF","short_pith_number":"pith:AZ4UP6CW","canonical_record":{"source":{"id":"1409.6235","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-09-22T16:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"a46cd7cc1edea6e14145907938b4a846e54bce3a7cba9dbbb9c9ec0bd6dbf28b","abstract_canon_sha256":"8782782a671d346cb0b88d715630620a23984ab1d458c8f5359aca3c698223f4"},"schema_version":"1.0"},"canonical_sha256":"067947f856324c2d2346129b8443712175f706a3dd4b1217cb4ff230230da8dd","source":{"kind":"arxiv","id":"1409.6235","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6235","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6235v1","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6235","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"AZ4UP6CWGJGC","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AZ4UP6CWGJGC2I2G","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AZ4UP6CW","created_at":"2026-05-18T12:28:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:AZ4UP6CWGJGC2I2GCKNYIQ3REF","target":"record","payload":{"canonical_record":{"source":{"id":"1409.6235","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-09-22T16:37:57Z","cross_cats_sorted":[],"title_canon_sha256":"a46cd7cc1edea6e14145907938b4a846e54bce3a7cba9dbbb9c9ec0bd6dbf28b","abstract_canon_sha256":"8782782a671d346cb0b88d715630620a23984ab1d458c8f5359aca3c698223f4"},"schema_version":"1.0"},"canonical_sha256":"067947f856324c2d2346129b8443712175f706a3dd4b1217cb4ff230230da8dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:42:13.544148Z","signature_b64":"FBk/yxrZ4fA2XBSKnrnqYutlkI/0w3UAZRJdyl+9WYEPSFivjCfBgGG13Q8Kmqu77OGTJoznHd91Y0IeKa8iAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"067947f856324c2d2346129b8443712175f706a3dd4b1217cb4ff230230da8dd","last_reissued_at":"2026-05-18T02:42:13.543682Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:42:13.543682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.6235","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":"2026-05-18T02:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3arbPGEpCYmYSXdT93X+LWKCFBJ3mqvdetztS5Yb4huA0uC+ED1BwB2W30xRp7JNgkl5x31gqj6IzX79KsOvBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:24:43.911365Z"},"content_sha256":"06f03a7a024a986a314ad7410c9b2ecddd51212f753ee4c8733b6980687f6867","schema_version":"1.0","event_id":"sha256:06f03a7a024a986a314ad7410c9b2ecddd51212f753ee4c8733b6980687f6867"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:AZ4UP6CWGJGC2I2GCKNYIQ3REF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detecting People in Cubist Art","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Daniel Haas, Jitendra Malik, Shiry Ginosar, Timothy Brown","submitted_at":"2014-09-22T16:37:57Z","abstract_excerpt":"Although the human visual system is surprisingly robust to extreme distortion when recognizing objects, most evaluations of computer object detection methods focus only on robustness to natural form deformations such as people's pose changes. To determine whether algorithms truly mirror the flexibility of human vision, they must be compared against human vision at its limits. For example, in Cubist abstract art, painted objects are distorted by object fragmentation and part-reorganization, to the point that human vision often fails to recognize them. In this paper, we evaluate existing object "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6235","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":"2026-05-18T02:42:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SD18qCHpmoGtx8nCeFiPkNENOfgM12zvfIqPDSIIWFF23Glu7LCbRzu9J4TWGipRC7vjjc+cUS61g47eNcINCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:24:43.911713Z"},"content_sha256":"aa5d6440e7656627ef769bbfe5c99903233f3e9bd6198ed60c1dcb39928ad1bd","schema_version":"1.0","event_id":"sha256:aa5d6440e7656627ef769bbfe5c99903233f3e9bd6198ed60c1dcb39928ad1bd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/bundle.json","state_url":"https://pith.science/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/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":"2026-06-01T13:24:43Z","links":{"resolver":"https://pith.science/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF","bundle":"https://pith.science/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/bundle.json","state":"https://pith.science/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AZ4UP6CWGJGC2I2GCKNYIQ3REF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:AZ4UP6CWGJGC2I2GCKNYIQ3REF","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":"8782782a671d346cb0b88d715630620a23984ab1d458c8f5359aca3c698223f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-09-22T16:37:57Z","title_canon_sha256":"a46cd7cc1edea6e14145907938b4a846e54bce3a7cba9dbbb9c9ec0bd6dbf28b"},"schema_version":"1.0","source":{"id":"1409.6235","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6235","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6235v1","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6235","created_at":"2026-05-18T02:42:13Z"},{"alias_kind":"pith_short_12","alias_value":"AZ4UP6CWGJGC","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_16","alias_value":"AZ4UP6CWGJGC2I2G","created_at":"2026-05-18T12:28:19Z"},{"alias_kind":"pith_short_8","alias_value":"AZ4UP6CW","created_at":"2026-05-18T12:28:19Z"}],"graph_snapshots":[{"event_id":"sha256:aa5d6440e7656627ef769bbfe5c99903233f3e9bd6198ed60c1dcb39928ad1bd","target":"graph","created_at":"2026-05-18T02:42:13Z","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":"Although the human visual system is surprisingly robust to extreme distortion when recognizing objects, most evaluations of computer object detection methods focus only on robustness to natural form deformations such as people's pose changes. To determine whether algorithms truly mirror the flexibility of human vision, they must be compared against human vision at its limits. For example, in Cubist abstract art, painted objects are distorted by object fragmentation and part-reorganization, to the point that human vision often fails to recognize them. In this paper, we evaluate existing object ","authors_text":"Daniel Haas, Jitendra Malik, Shiry Ginosar, Timothy Brown","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-09-22T16:37:57Z","title":"Detecting People in Cubist Art"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6235","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":"sha256:06f03a7a024a986a314ad7410c9b2ecddd51212f753ee4c8733b6980687f6867","target":"record","created_at":"2026-05-18T02:42:13Z","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":"8782782a671d346cb0b88d715630620a23984ab1d458c8f5359aca3c698223f4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2014-09-22T16:37:57Z","title_canon_sha256":"a46cd7cc1edea6e14145907938b4a846e54bce3a7cba9dbbb9c9ec0bd6dbf28b"},"schema_version":"1.0","source":{"id":"1409.6235","kind":"arxiv","version":1}},"canonical_sha256":"067947f856324c2d2346129b8443712175f706a3dd4b1217cb4ff230230da8dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"067947f856324c2d2346129b8443712175f706a3dd4b1217cb4ff230230da8dd","first_computed_at":"2026-05-18T02:42:13.543682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:13.543682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FBk/yxrZ4fA2XBSKnrnqYutlkI/0w3UAZRJdyl+9WYEPSFivjCfBgGG13Q8Kmqu77OGTJoznHd91Y0IeKa8iAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:13.544148Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6235","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06f03a7a024a986a314ad7410c9b2ecddd51212f753ee4c8733b6980687f6867","sha256:aa5d6440e7656627ef769bbfe5c99903233f3e9bd6198ed60c1dcb39928ad1bd"],"state_sha256":"81722a892930741c8e0ccaeec29779deac9240fd95319fea16dbb7aba18072fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZB0LTv3+/SPOBPRIcyJ/hYfJmSfBj+CvXCBbv6cbj/K4COYflXQznVC4wO98YeBCQEDqUSpMqzd3t979Au8dCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T13:24:43.913696Z","bundle_sha256":"c63f0a63f36c4ce0dee5948d545cd2091a3de8a89c8d762122be67006287565c"}}