{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:QJXRVE36RG2IUNXI5XSSBC6Z7D","short_pith_number":"pith:QJXRVE36","canonical_record":{"source":{"id":"1902.02922","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-08T03:06:29Z","cross_cats_sorted":["q-bio.NC"],"title_canon_sha256":"634a611b21fb4f45fd7e5d73a7b8f6a238e7c31f4319fb740c3229fc72054d53","abstract_canon_sha256":"cc247dfe1d463307e786b81d4e5e54748dff7c5bdd6387f53b18b83bfa2b1d0c"},"schema_version":"1.0"},"canonical_sha256":"826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd","source":{"kind":"arxiv","id":"1902.02922","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02922","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02922v1","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02922","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"QJXRVE36RG2I","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QJXRVE36RG2IUNXI","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QJXRVE36","created_at":"2026-05-18T12:33:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:QJXRVE36RG2IUNXI5XSSBC6Z7D","target":"record","payload":{"canonical_record":{"source":{"id":"1902.02922","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-08T03:06:29Z","cross_cats_sorted":["q-bio.NC"],"title_canon_sha256":"634a611b21fb4f45fd7e5d73a7b8f6a238e7c31f4319fb740c3229fc72054d53","abstract_canon_sha256":"cc247dfe1d463307e786b81d4e5e54748dff7c5bdd6387f53b18b83bfa2b1d0c"},"schema_version":"1.0"},"canonical_sha256":"826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:28.829245Z","signature_b64":"pFRggTZjLh/NND4fEcmHmlz/Cmt9Yes9JzL9ig4FQGZ07bjTfxmITYbPwDKvo9U2NNBnAtvuAi80RRqF8L2aAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd","last_reissued_at":"2026-05-17T23:54:28.828684Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:28.828684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.02922","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":"2026-05-17T23:54:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zl6YleL/q/F2DnNVrdC3MHVvyhjsK+g8t2yixS9L7n1YAj2ZZ/y7Ej676NBd3XlPOI/T3/ms1ymdLEC1IcX6AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T20:13:14.741363Z"},"content_sha256":"fe64c44294d1b61de87eeb0800c23f90cbbf718283dd768f10ff58c423a58d19","schema_version":"1.0","event_id":"sha256:fe64c44294d1b61de87eeb0800c23f90cbbf718283dd768f10ff58c423a58d19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:QJXRVE36RG2IUNXI5XSSBC6Z7D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Informing Computer Vision with Optical Illusions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.NC"],"primary_cat":"cs.CV","authors_text":"David M. W. Powers, Nasim Nematzadeh, Trent Lewis","submitted_at":"2019-02-08T03:06:29Z","abstract_excerpt":"Illusions are fascinating and immediately catch people's attention and interest, but they are also valuable in terms of giving us insights into human cognition and perception. A good theory of human perception should be able to explain the illusion, and a correct theory will actually give quantifiable results. We investigate here the efficiency of a computational filtering model utilised for modelling the lateral inhibition of retinal ganglion cells and their responses to a range of Geometric Illusions using isotropic Differences of Gaussian filters. This study explores the way in which illusi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02922","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":"2026-05-17T23:54:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F7S6udQjXVxx51YdVy8/x0vqFk5bwA+2k3ymECshqsWZuNDtIfiWkjUYSM06Ilck+ineYKp9DF34mxHat6kWAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T20:13:14.741703Z"},"content_sha256":"dc04648ff2aa0cdc2991c57931229f753dc0ce051d80474f477a17dc53bd03b0","schema_version":"1.0","event_id":"sha256:dc04648ff2aa0cdc2991c57931229f753dc0ce051d80474f477a17dc53bd03b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/bundle.json","state_url":"https://pith.science/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/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":"2026-06-26T20:13:14Z","links":{"resolver":"https://pith.science/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D","bundle":"https://pith.science/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/bundle.json","state":"https://pith.science/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QJXRVE36RG2IUNXI5XSSBC6Z7D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:QJXRVE36RG2IUNXI5XSSBC6Z7D","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":"cc247dfe1d463307e786b81d4e5e54748dff7c5bdd6387f53b18b83bfa2b1d0c","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-08T03:06:29Z","title_canon_sha256":"634a611b21fb4f45fd7e5d73a7b8f6a238e7c31f4319fb740c3229fc72054d53"},"schema_version":"1.0","source":{"id":"1902.02922","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02922","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02922v1","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02922","created_at":"2026-05-17T23:54:28Z"},{"alias_kind":"pith_short_12","alias_value":"QJXRVE36RG2I","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_16","alias_value":"QJXRVE36RG2IUNXI","created_at":"2026-05-18T12:33:27Z"},{"alias_kind":"pith_short_8","alias_value":"QJXRVE36","created_at":"2026-05-18T12:33:27Z"}],"graph_snapshots":[{"event_id":"sha256:dc04648ff2aa0cdc2991c57931229f753dc0ce051d80474f477a17dc53bd03b0","target":"graph","created_at":"2026-05-17T23:54:28Z","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":"Illusions are fascinating and immediately catch people's attention and interest, but they are also valuable in terms of giving us insights into human cognition and perception. A good theory of human perception should be able to explain the illusion, and a correct theory will actually give quantifiable results. We investigate here the efficiency of a computational filtering model utilised for modelling the lateral inhibition of retinal ganglion cells and their responses to a range of Geometric Illusions using isotropic Differences of Gaussian filters. This study explores the way in which illusi","authors_text":"David M. W. Powers, Nasim Nematzadeh, Trent Lewis","cross_cats":["q-bio.NC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-08T03:06:29Z","title":"Informing Computer Vision with Optical Illusions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02922","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:fe64c44294d1b61de87eeb0800c23f90cbbf718283dd768f10ff58c423a58d19","target":"record","created_at":"2026-05-17T23:54:28Z","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":"cc247dfe1d463307e786b81d4e5e54748dff7c5bdd6387f53b18b83bfa2b1d0c","cross_cats_sorted":["q-bio.NC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2019-02-08T03:06:29Z","title_canon_sha256":"634a611b21fb4f45fd7e5d73a7b8f6a238e7c31f4319fb740c3229fc72054d53"},"schema_version":"1.0","source":{"id":"1902.02922","kind":"arxiv","version":1}},"canonical_sha256":"826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"826f1a937e89b48a36e8ede5208bd9f8e567d00bf7bcdebe0f384758756663dd","first_computed_at":"2026-05-17T23:54:28.828684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:28.828684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pFRggTZjLh/NND4fEcmHmlz/Cmt9Yes9JzL9ig4FQGZ07bjTfxmITYbPwDKvo9U2NNBnAtvuAi80RRqF8L2aAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:28.829245Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.02922","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fe64c44294d1b61de87eeb0800c23f90cbbf718283dd768f10ff58c423a58d19","sha256:dc04648ff2aa0cdc2991c57931229f753dc0ce051d80474f477a17dc53bd03b0"],"state_sha256":"c9de3f3ca2d06996428baf083ae6bf575c54bf860e73f5d3ce60af2fbe115fe7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fJMtXHxupZCfDjyVUYhDYrCKFSm0p5hxfrXgM31NmcqZtpQ5EHK7Hi7LVFzb5bLcvvDUy6nLItkUXJ0NuisfBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T20:13:14.743472Z","bundle_sha256":"5e0649e26518b649cfdcc20c6aea726ac9e57e55c74b95e7f2298748442fec95"}}