{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:7W3DIZAULV7IQDOGXYVDLYM7P7","short_pith_number":"pith:7W3DIZAU","canonical_record":{"source":{"id":"1811.06458","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-15T16:37:31Z","cross_cats_sorted":[],"title_canon_sha256":"c506593072f37ebc83833e3382d488a74a07715ca69991cbd3c44ff850103a84","abstract_canon_sha256":"a47aa1405e16d72d6035f0ecc8498787cd240a95ef2974c39c32bfcd55bb0c10"},"schema_version":"1.0"},"canonical_sha256":"fdb63464145d7e880dc6be2a35e19f7fdc9973f92dea1cef2e2803e0ad822461","source":{"kind":"arxiv","id":"1811.06458","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.06458","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"arxiv_version","alias_value":"1811.06458v1","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.06458","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"pith_short_12","alias_value":"7W3DIZAULV7I","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7W3DIZAULV7IQDOG","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7W3DIZAU","created_at":"2026-05-18T12:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:7W3DIZAULV7IQDOGXYVDLYM7P7","target":"record","payload":{"canonical_record":{"source":{"id":"1811.06458","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-15T16:37:31Z","cross_cats_sorted":[],"title_canon_sha256":"c506593072f37ebc83833e3382d488a74a07715ca69991cbd3c44ff850103a84","abstract_canon_sha256":"a47aa1405e16d72d6035f0ecc8498787cd240a95ef2974c39c32bfcd55bb0c10"},"schema_version":"1.0"},"canonical_sha256":"fdb63464145d7e880dc6be2a35e19f7fdc9973f92dea1cef2e2803e0ad822461","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:34.557011Z","signature_b64":"mpSKzUCzQIniB6rmOpwVviVIKP+brAz6S4UjFux/tMgS6TARpAvn44QGj2X4j44SWeSvmlI05PM+jWM2XJzbAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdb63464145d7e880dc6be2a35e19f7fdc9973f92dea1cef2e2803e0ad822461","last_reissued_at":"2026-05-18T00:00:34.556362Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:34.556362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.06458","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":"2026-05-18T00:00:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CfsCCXHpKXxQ6OStmiyUQqczEfkH4HiPE768fRRr6QhCSSiW3v9CkVnuQq4+E2l2smHh3xY9ZXL0VIiIpU3OAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T07:18:57.175497Z"},"content_sha256":"a412bbb006a8b6a78035725097bb1829731b6ac9b2ee36d4190ba02b8860c4a3","schema_version":"1.0","event_id":"sha256:a412bbb006a8b6a78035725097bb1829731b6ac9b2ee36d4190ba02b8860c4a3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:7W3DIZAULV7IQDOGXYVDLYM7P7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Psychophysical evaluation of individual low-level feature influences on visual attention","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"David Berga, V\\'ictor Lebor\\'an, Xavier Otazu, Xos\\'e M. Pardo, Xos\\'e Ram\\'on Fdez-Vidal","submitted_at":"2018-11-15T16:37:31Z","abstract_excerpt":"In this study we provide the analysis of eye movement behavior elicited by low-level feature distinctiveness with a dataset of synthetically-generated image patterns. Design of visual stimuli was inspired by the ones used in previous psychophysical experiments, namely in free-viewing and visual searching tasks, to provide a total of 15 types of stimuli, divided according to the task and feature to be analyzed. Our interest is to analyze the influences of low-level feature contrast between a salient region and the rest of distractors, providing fixation localization characteristics and reaction"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.06458","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":"2026-05-18T00:00:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L8/KXb0E6vxUAYilW1oeTlQVoAoQsjJS0kjLEYDp7hKN57vK78WBmJMZsTxxqWsol2RCGDYLCPOp50gHPsrbAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-25T07:18:57.175869Z"},"content_sha256":"5615f74720a55e17eb258cb50afa45eff884b5f5f9995044d893f37942ae69af","schema_version":"1.0","event_id":"sha256:5615f74720a55e17eb258cb50afa45eff884b5f5f9995044d893f37942ae69af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/bundle.json","state_url":"https://pith.science/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/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":"2026-06-25T07:18:57Z","links":{"resolver":"https://pith.science/pith/7W3DIZAULV7IQDOGXYVDLYM7P7","bundle":"https://pith.science/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/bundle.json","state":"https://pith.science/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7W3DIZAULV7IQDOGXYVDLYM7P7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:7W3DIZAULV7IQDOGXYVDLYM7P7","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":"a47aa1405e16d72d6035f0ecc8498787cd240a95ef2974c39c32bfcd55bb0c10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-15T16:37:31Z","title_canon_sha256":"c506593072f37ebc83833e3382d488a74a07715ca69991cbd3c44ff850103a84"},"schema_version":"1.0","source":{"id":"1811.06458","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.06458","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"arxiv_version","alias_value":"1811.06458v1","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.06458","created_at":"2026-05-18T00:00:34Z"},{"alias_kind":"pith_short_12","alias_value":"7W3DIZAULV7I","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"7W3DIZAULV7IQDOG","created_at":"2026-05-18T12:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"7W3DIZAU","created_at":"2026-05-18T12:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:5615f74720a55e17eb258cb50afa45eff884b5f5f9995044d893f37942ae69af","target":"graph","created_at":"2026-05-18T00:00:34Z","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":"In this study we provide the analysis of eye movement behavior elicited by low-level feature distinctiveness with a dataset of synthetically-generated image patterns. Design of visual stimuli was inspired by the ones used in previous psychophysical experiments, namely in free-viewing and visual searching tasks, to provide a total of 15 types of stimuli, divided according to the task and feature to be analyzed. Our interest is to analyze the influences of low-level feature contrast between a salient region and the rest of distractors, providing fixation localization characteristics and reaction","authors_text":"David Berga, V\\'ictor Lebor\\'an, Xavier Otazu, Xos\\'e M. Pardo, Xos\\'e Ram\\'on Fdez-Vidal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-15T16:37:31Z","title":"Psychophysical evaluation of individual low-level feature influences on visual attention"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.06458","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:a412bbb006a8b6a78035725097bb1829731b6ac9b2ee36d4190ba02b8860c4a3","target":"record","created_at":"2026-05-18T00:00:34Z","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":"a47aa1405e16d72d6035f0ecc8498787cd240a95ef2974c39c32bfcd55bb0c10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-11-15T16:37:31Z","title_canon_sha256":"c506593072f37ebc83833e3382d488a74a07715ca69991cbd3c44ff850103a84"},"schema_version":"1.0","source":{"id":"1811.06458","kind":"arxiv","version":1}},"canonical_sha256":"fdb63464145d7e880dc6be2a35e19f7fdc9973f92dea1cef2e2803e0ad822461","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdb63464145d7e880dc6be2a35e19f7fdc9973f92dea1cef2e2803e0ad822461","first_computed_at":"2026-05-18T00:00:34.556362Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:00:34.556362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mpSKzUCzQIniB6rmOpwVviVIKP+brAz6S4UjFux/tMgS6TARpAvn44QGj2X4j44SWeSvmlI05PM+jWM2XJzbAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:00:34.557011Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.06458","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a412bbb006a8b6a78035725097bb1829731b6ac9b2ee36d4190ba02b8860c4a3","sha256:5615f74720a55e17eb258cb50afa45eff884b5f5f9995044d893f37942ae69af"],"state_sha256":"de6d6d528810f4d305bed9d13b88491ff5ba5200e645d0bba8bbb557beab3d8c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sckblmBY/xx7kPzxCSdsWkA4WzI3X9pusLDBuIMjFG38DPc2UNIQviiFfa95H2fzEMjN3VhTWM9EVktMzy9CAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-25T07:18:57.177871Z","bundle_sha256":"78f74172cdbee3c550efb62e1b230108d7dc478b9bd1b9a302179f38c37e37a6"}}