{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:E32ZJK66ARAOZATVYY7KVLNWGP","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":"ba3473730b85ede41c09b1ba9b1e2c83d4eafad65ba24c6ffbcbda83eae60666","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-13T17:37:20Z","title_canon_sha256":"ed3c5d1ca1600137eeac2ee30f9ab9ae48bca9a73aab7ff376717e9295ea2669"},"schema_version":"1.0","source":{"id":"2109.06148","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.06148","created_at":"2026-07-05T04:27:07Z"},{"alias_kind":"arxiv_version","alias_value":"2109.06148v4","created_at":"2026-07-05T04:27:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.06148","created_at":"2026-07-05T04:27:07Z"},{"alias_kind":"pith_short_12","alias_value":"E32ZJK66ARAO","created_at":"2026-07-05T04:27:07Z"},{"alias_kind":"pith_short_16","alias_value":"E32ZJK66ARAOZATV","created_at":"2026-07-05T04:27:07Z"},{"alias_kind":"pith_short_8","alias_value":"E32ZJK66","created_at":"2026-07-05T04:27:07Z"}],"graph_snapshots":[{"event_id":"sha256:407293ec2e238b8dedddaf1990c690666eb842d9c77f5399f4e461c467f0f000","target":"graph","created_at":"2026-07-05T04:27:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2109.06148/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present DAFNe, a Dense one-stage Anchor-Free deep Network for oriented object detection. As a one-stage model, it performs bounding box predictions on a dense grid over the input image, being architecturally simpler in design, as well as easier to optimize than its two-stage counterparts. Furthermore, as an anchor-free model, it reduces the prediction complexity by refraining from employing bounding box anchors. With DAFNe we introduce an orientation-aware generalization of the center-ness function for arbitrarily oriented bounding boxes to down-weight low-quality predictions and a center-t","authors_text":"Fabrizio Ventola, Kristian Kersting, Steven Lang","cross_cats":["cs.AI","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-13T17:37:20Z","title":"DAFNe: A One-Stage Anchor-Free Approach for Oriented Object Detection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.06148","kind":"arxiv","version":4},"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:d46a988f7a380e5708fd5186427801a475e7456eead99be14e999bb7914ddf76","target":"record","created_at":"2026-07-05T04:27:07Z","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":"ba3473730b85ede41c09b1ba9b1e2c83d4eafad65ba24c6ffbcbda83eae60666","cross_cats_sorted":["cs.AI","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2021-09-13T17:37:20Z","title_canon_sha256":"ed3c5d1ca1600137eeac2ee30f9ab9ae48bca9a73aab7ff376717e9295ea2669"},"schema_version":"1.0","source":{"id":"2109.06148","kind":"arxiv","version":4}},"canonical_sha256":"26f594abde0440ec8275c63eaaadb633e8d677d3a6e0598a7979a398fd08b4bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26f594abde0440ec8275c63eaaadb633e8d677d3a6e0598a7979a398fd08b4bc","first_computed_at":"2026-07-05T04:27:07.622857Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:07.622857Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iZTVW7V9Q7KD7ksQC31JTq5im+sgMScWUi3CF/hWWii92HyY/h9UMKe++PkCcFtB4Rwe5pJQp4XdgOf6FhiRCg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:07.623297Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.06148","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d46a988f7a380e5708fd5186427801a475e7456eead99be14e999bb7914ddf76","sha256:407293ec2e238b8dedddaf1990c690666eb842d9c77f5399f4e461c467f0f000"],"state_sha256":"d90fc4e8f2096a07404f440d97925cad7d29c691ce4f9b5f93a7aad45114422d"}