{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:3KUV3NMBSD2EHAKZVRKOKXUWFN","short_pith_number":"pith:3KUV3NMB","canonical_record":{"source":{"id":"2506.00870","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-06-01T07:18:24Z","cross_cats_sorted":[],"title_canon_sha256":"30047e6167cf2cf992065f846b556034a289613bbb8b3d7b777ad7556ae5180e","abstract_canon_sha256":"1cb2fe465b8f1760f7957253595653ad0bcbf7ccf4b3fa035f76ba976d78037f"},"schema_version":"1.0"},"canonical_sha256":"daa95db58190f4438159ac54e55e962b5f0f40d8a3770b3b11acc80d54c74a88","source":{"kind":"arxiv","id":"2506.00870","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00870","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00870v1","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00870","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_12","alias_value":"3KUV3NMBSD2E","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_16","alias_value":"3KUV3NMBSD2EHAKZ","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_8","alias_value":"3KUV3NMB","created_at":"2026-07-05T11:13:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:3KUV3NMBSD2EHAKZVRKOKXUWFN","target":"record","payload":{"canonical_record":{"source":{"id":"2506.00870","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-06-01T07:18:24Z","cross_cats_sorted":[],"title_canon_sha256":"30047e6167cf2cf992065f846b556034a289613bbb8b3d7b777ad7556ae5180e","abstract_canon_sha256":"1cb2fe465b8f1760f7957253595653ad0bcbf7ccf4b3fa035f76ba976d78037f"},"schema_version":"1.0"},"canonical_sha256":"daa95db58190f4438159ac54e55e962b5f0f40d8a3770b3b11acc80d54c74a88","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:13:41.931073Z","signature_b64":"HM4y5mw++nWGwxh0uH+V3/EYmeBYA0f3/l9R/6MYosUhm5zFll60hkIPBreL131FzD1BtgABvcnYT1cfVXvoCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"daa95db58190f4438159ac54e55e962b5f0f40d8a3770b3b11acc80d54c74a88","last_reissued_at":"2026-07-05T11:13:41.930613Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:13:41.930613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.00870","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":"2026-07-05T11:13:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7CPe869vslvOpRMQedmyKkmEXiXKAQ8gcZL/kzkb80KGuDSVWipc0fx//hiirSJMceC3iybG5jvVXAwdGZ76Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T20:10:29.986404Z"},"content_sha256":"9b233f8bd992c1bb56ae9854e772e07b97feaf7f849f739520ec7567a4a126b7","schema_version":"1.0","event_id":"sha256:9b233f8bd992c1bb56ae9854e772e07b97feaf7f849f739520ec7567a4a126b7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:3KUV3NMBSD2EHAKZVRKOKXUWFN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Hybridizing Expressive Rendering: Stroke-Based Rendering with Classic and Neural Methods","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Kapil Dev","submitted_at":"2025-06-01T07:18:24Z","abstract_excerpt":"Non-Photorealistic Rendering (NPR) has long been used to create artistic visualizations that prioritize style over realism, enabling the depiction of a wide range of aesthetic effects, from hand-drawn sketches to painterly renderings. While classical NPR methods, such as edge detection, toon shading, and geometric abstraction, have been well-established in both research and practice, with a particular focus on stroke-based rendering, the recent rise of deep learning represents a paradigm shift. We analyze the similarities and differences between classical and neural network based NPR technique"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00870","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.00870/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:13:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aH2Blwuo6XeCRQ24I+Kh2AgDRzQuCSt+XOav9EV5CI1g+bRTp9O/g1ELOnlufR/+lVxZ8eY7xUhYj6OVGgNaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T20:10:29.986898Z"},"content_sha256":"0f016dca9e6ed9a27d995b2c9abf0d483a65dce9d61a4076f07a3b8bbf2edac5","schema_version":"1.0","event_id":"sha256:0f016dca9e6ed9a27d995b2c9abf0d483a65dce9d61a4076f07a3b8bbf2edac5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/bundle.json","state_url":"https://pith.science/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/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":"2026-08-08T20:10:29Z","links":{"resolver":"https://pith.science/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN","bundle":"https://pith.science/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/bundle.json","state":"https://pith.science/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3KUV3NMBSD2EHAKZVRKOKXUWFN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3KUV3NMBSD2EHAKZVRKOKXUWFN","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":"1cb2fe465b8f1760f7957253595653ad0bcbf7ccf4b3fa035f76ba976d78037f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-06-01T07:18:24Z","title_canon_sha256":"30047e6167cf2cf992065f846b556034a289613bbb8b3d7b777ad7556ae5180e"},"schema_version":"1.0","source":{"id":"2506.00870","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.00870","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"arxiv_version","alias_value":"2506.00870v1","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.00870","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_12","alias_value":"3KUV3NMBSD2E","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_16","alias_value":"3KUV3NMBSD2EHAKZ","created_at":"2026-07-05T11:13:41Z"},{"alias_kind":"pith_short_8","alias_value":"3KUV3NMB","created_at":"2026-07-05T11:13:41Z"}],"graph_snapshots":[{"event_id":"sha256:0f016dca9e6ed9a27d995b2c9abf0d483a65dce9d61a4076f07a3b8bbf2edac5","target":"graph","created_at":"2026-07-05T11:13:41Z","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/2506.00870/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Non-Photorealistic Rendering (NPR) has long been used to create artistic visualizations that prioritize style over realism, enabling the depiction of a wide range of aesthetic effects, from hand-drawn sketches to painterly renderings. While classical NPR methods, such as edge detection, toon shading, and geometric abstraction, have been well-established in both research and practice, with a particular focus on stroke-based rendering, the recent rise of deep learning represents a paradigm shift. We analyze the similarities and differences between classical and neural network based NPR technique","authors_text":"Kapil Dev","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-06-01T07:18:24Z","title":"Hybridizing Expressive Rendering: Stroke-Based Rendering with Classic and Neural Methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.00870","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":"sha256:9b233f8bd992c1bb56ae9854e772e07b97feaf7f849f739520ec7567a4a126b7","target":"record","created_at":"2026-07-05T11:13:41Z","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":"1cb2fe465b8f1760f7957253595653ad0bcbf7ccf4b3fa035f76ba976d78037f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.GR","submitted_at":"2025-06-01T07:18:24Z","title_canon_sha256":"30047e6167cf2cf992065f846b556034a289613bbb8b3d7b777ad7556ae5180e"},"schema_version":"1.0","source":{"id":"2506.00870","kind":"arxiv","version":1}},"canonical_sha256":"daa95db58190f4438159ac54e55e962b5f0f40d8a3770b3b11acc80d54c74a88","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"daa95db58190f4438159ac54e55e962b5f0f40d8a3770b3b11acc80d54c74a88","first_computed_at":"2026-07-05T11:13:41.930613Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:13:41.930613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HM4y5mw++nWGwxh0uH+V3/EYmeBYA0f3/l9R/6MYosUhm5zFll60hkIPBreL131FzD1BtgABvcnYT1cfVXvoCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:13:41.931073Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.00870","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b233f8bd992c1bb56ae9854e772e07b97feaf7f849f739520ec7567a4a126b7","sha256:0f016dca9e6ed9a27d995b2c9abf0d483a65dce9d61a4076f07a3b8bbf2edac5"],"state_sha256":"ca87dbf716a7b21cf330f734b2e1ed498f9c6ce4961ad8b97aa0c8ed401e6eab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Jm7TV2OYMauwiQ4XQE+vfH57LLMZJbIiC3bD/mHkCgO7sO6tzbiY/VXT54ZAh6/ebTVLFEAv0ISxJQ237tAkCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T20:10:29.991602Z","bundle_sha256":"eab07ab2b8186c4e060be5a30c42937132d8cccc1c6748d08dff3eda2070a07a"}}