{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:TVB4UJRZVUP2QI6WRMR7DGWUAU","short_pith_number":"pith:TVB4UJRZ","canonical_record":{"source":{"id":"1810.01193","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-02T12:08:32Z","cross_cats_sorted":[],"title_canon_sha256":"af1674f39a74c588a2548f78ffef7542409f86f8323af3d8c9f1455cdab6dfe5","abstract_canon_sha256":"ab8b000e6bf1b8cc2a6601cdad36689055b44a18f1abda17bec9b0ef2c227d8a"},"schema_version":"1.0"},"canonical_sha256":"9d43ca2639ad1fa823d68b23f19ad4052926458c598bc87d7b54c0bca282f41e","source":{"kind":"arxiv","id":"1810.01193","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.01193","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1810.01193v1","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.01193","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"TVB4UJRZVUP2","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TVB4UJRZVUP2QI6W","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TVB4UJRZ","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:TVB4UJRZVUP2QI6WRMR7DGWUAU","target":"record","payload":{"canonical_record":{"source":{"id":"1810.01193","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-02T12:08:32Z","cross_cats_sorted":[],"title_canon_sha256":"af1674f39a74c588a2548f78ffef7542409f86f8323af3d8c9f1455cdab6dfe5","abstract_canon_sha256":"ab8b000e6bf1b8cc2a6601cdad36689055b44a18f1abda17bec9b0ef2c227d8a"},"schema_version":"1.0"},"canonical_sha256":"9d43ca2639ad1fa823d68b23f19ad4052926458c598bc87d7b54c0bca282f41e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:18.530106Z","signature_b64":"9PYy5v22P+QCiHTUNuL7hhlNFQ7jj21sh7tpQMt4YTg5nSHjy+oofRNqeM3Os3sUaUzFAu1GKiE9HaPhp6PzAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d43ca2639ad1fa823d68b23f19ad4052926458c598bc87d7b54c0bca282f41e","last_reissued_at":"2026-05-18T00:04:18.529500Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:18.529500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.01193","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":"2026-05-18T00:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BGBANt3eiq8ia3pCdpCpiBrf5pzswet2TqC+RK7O61Cbh/YyezKrRmp/fl+FZ6SOuhxaHGFbGBfpq5gCGLulBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:10:06.231522Z"},"content_sha256":"9e63bbddbc0a7b6ba5331ac55e0ddd1a29a91fe054a9a7396be36045994c5532","schema_version":"1.0","event_id":"sha256:9e63bbddbc0a7b6ba5331ac55e0ddd1a29a91fe054a9a7396be36045994c5532"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:TVB4UJRZVUP2QI6WRMR7DGWUAU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterization of Visual Object Representations in Rat Primary Visual Cortex","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Davide Zoccolan, Eis Annavini, Marcello Pelillo, Mattia D'Andola, Sebastiano Vascon, Ylenia Parin","submitted_at":"2018-10-02T12:08:32Z","abstract_excerpt":"For most animal species, quick and reliable identification of visual objects is critical for survival. This applies also to rodents, which, in recent years, have become increasingly popular models of visual functions. For this reason in this work we analyzed how various properties of visual objects are represented in rat primary visual cortex (V1). The analysis has been carried out through supervised (classification) and unsupervised (clustering) learning methods. We assessed quantitatively the discrimination capabilities of V1 neurons by demonstrating how photometric properties (luminosity an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.01193","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":"2026-05-18T00:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5pi+Gbs2DSMCACkHvUQw4g1hhYvtNCOHJLec7qMkBgW52YlDHrRd0UgiGG9PRvhutoRsivqLOUoiJTr3adUaDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T13:10:06.232502Z"},"content_sha256":"a0c59e7e0e2d9ed4f966a07d65a71b1c468ffb1140845b2245adb64901dff0eb","schema_version":"1.0","event_id":"sha256:a0c59e7e0e2d9ed4f966a07d65a71b1c468ffb1140845b2245adb64901dff0eb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/bundle.json","state_url":"https://pith.science/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/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":"2026-06-08T13:10:06Z","links":{"resolver":"https://pith.science/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU","bundle":"https://pith.science/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/bundle.json","state":"https://pith.science/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TVB4UJRZVUP2QI6WRMR7DGWUAU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:TVB4UJRZVUP2QI6WRMR7DGWUAU","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":"ab8b000e6bf1b8cc2a6601cdad36689055b44a18f1abda17bec9b0ef2c227d8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-02T12:08:32Z","title_canon_sha256":"af1674f39a74c588a2548f78ffef7542409f86f8323af3d8c9f1455cdab6dfe5"},"schema_version":"1.0","source":{"id":"1810.01193","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.01193","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1810.01193v1","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.01193","created_at":"2026-05-18T00:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"TVB4UJRZVUP2","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"TVB4UJRZVUP2QI6W","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"TVB4UJRZ","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:a0c59e7e0e2d9ed4f966a07d65a71b1c468ffb1140845b2245adb64901dff0eb","target":"graph","created_at":"2026-05-18T00:04:18Z","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":"For most animal species, quick and reliable identification of visual objects is critical for survival. This applies also to rodents, which, in recent years, have become increasingly popular models of visual functions. For this reason in this work we analyzed how various properties of visual objects are represented in rat primary visual cortex (V1). The analysis has been carried out through supervised (classification) and unsupervised (clustering) learning methods. We assessed quantitatively the discrimination capabilities of V1 neurons by demonstrating how photometric properties (luminosity an","authors_text":"Davide Zoccolan, Eis Annavini, Marcello Pelillo, Mattia D'Andola, Sebastiano Vascon, Ylenia Parin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-02T12:08:32Z","title":"Characterization of Visual Object Representations in Rat Primary Visual Cortex"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.01193","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":"sha256:9e63bbddbc0a7b6ba5331ac55e0ddd1a29a91fe054a9a7396be36045994c5532","target":"record","created_at":"2026-05-18T00:04:18Z","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":"ab8b000e6bf1b8cc2a6601cdad36689055b44a18f1abda17bec9b0ef2c227d8a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2018-10-02T12:08:32Z","title_canon_sha256":"af1674f39a74c588a2548f78ffef7542409f86f8323af3d8c9f1455cdab6dfe5"},"schema_version":"1.0","source":{"id":"1810.01193","kind":"arxiv","version":1}},"canonical_sha256":"9d43ca2639ad1fa823d68b23f19ad4052926458c598bc87d7b54c0bca282f41e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d43ca2639ad1fa823d68b23f19ad4052926458c598bc87d7b54c0bca282f41e","first_computed_at":"2026-05-18T00:04:18.529500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:04:18.529500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9PYy5v22P+QCiHTUNuL7hhlNFQ7jj21sh7tpQMt4YTg5nSHjy+oofRNqeM3Os3sUaUzFAu1GKiE9HaPhp6PzAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:04:18.530106Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.01193","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e63bbddbc0a7b6ba5331ac55e0ddd1a29a91fe054a9a7396be36045994c5532","sha256:a0c59e7e0e2d9ed4f966a07d65a71b1c468ffb1140845b2245adb64901dff0eb"],"state_sha256":"d20f4eb8bf61f1c3a1d7f1c8771fb6342786e59fbd9e44a3d43fe43ec087887b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rRfpj7UtZLAb7p2vqUB4tyrKAgFPQZaauvpI2qJUJUAfthfbrAaxQ96eaGLnmHlj8kd+Fn9t4W2gkhU0CGeGDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T13:10:06.234397Z","bundle_sha256":"3222a6c7a8422b0ea6ad12d2ac31c3a290c1c3799f1c3ae13f1865397756c6dc"}}