{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UGB5AF5KNESO5DNU3E3UH66IVT","short_pith_number":"pith:UGB5AF5K","canonical_record":{"source":{"id":"1812.00606","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-12-03T08:53:33Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"8982fbdd9a989bb2854e5404e051c735891365f7453ba0dec153eebccc61242d","abstract_canon_sha256":"851ade51b923038b8ea729252a1d08bd48d722f5798fdee7c3922885e7f1e216"},"schema_version":"1.0"},"canonical_sha256":"a183d017aa6924ee8db4d93743fbc8acf8583257a9b71e83a87e75cc77ad328e","source":{"kind":"arxiv","id":"1812.00606","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00606","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00606v4","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00606","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_12","alias_value":"UGB5AF5KNESO","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_16","alias_value":"UGB5AF5KNESO5DNU","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_8","alias_value":"UGB5AF5K","created_at":"2026-07-04T23:59:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UGB5AF5KNESO5DNU3E3UH66IVT","target":"record","payload":{"canonical_record":{"source":{"id":"1812.00606","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-12-03T08:53:33Z","cross_cats_sorted":["cs.GR"],"title_canon_sha256":"8982fbdd9a989bb2854e5404e051c735891365f7453ba0dec153eebccc61242d","abstract_canon_sha256":"851ade51b923038b8ea729252a1d08bd48d722f5798fdee7c3922885e7f1e216"},"schema_version":"1.0"},"canonical_sha256":"a183d017aa6924ee8db4d93743fbc8acf8583257a9b71e83a87e75cc77ad328e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:59:47.522559Z","signature_b64":"XMAOCd8NWmEgOc9seAb8+NXMgD6m4rRSP6QYB5t9tF4XUU4vQ0rmfYjtxoORYFLwslycVPi2HFfTCxOUTDs/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a183d017aa6924ee8db4d93743fbc8acf8583257a9b71e83a87e75cc77ad328e","last_reissued_at":"2026-07-04T23:59:47.522114Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:59:47.522114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.00606","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T23:59:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W2xnAKp3zaNE1fYlwzRRXJBOVNe8FFdqTWkT7pPWCKi/mCiGe4NWWsQTxNcGpr8wVe26igq1Gd/tvgHmR+IABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:46:50.929002Z"},"content_sha256":"cf56ebdfb422172f44245070264e8193e4b9f094534777f84d745e66850a873f","schema_version":"1.0","event_id":"sha256:cf56ebdfb422172f44245070264e8193e4b9f094534777f84d745e66850a873f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UGB5AF5KNESO5DNU3E3UH66IVT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"General Support-Effective Decomposition for Multi-Directional 3D Printing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.GR"],"primary_cat":"cs.RO","authors_text":"Charlie C.L. Wang, Chengkai Dai, Chenming Wu, Guoxin Fang, Yong-jin Liu","submitted_at":"2018-12-03T08:53:33Z","abstract_excerpt":"We present a method for fabricating general models with multi-directional 3D printing systems by printing different model regions along with different directions. The core of our method is a support-effective volume decomposition algorithm that minimizes the area of the regions with large overhangs. A beam-guided searching algorithm with manufacturing constraints determines the optimal volume decomposition, which is represented by a sequence of clipping planes. While current approaches require manually assembling separate components into a final model, our algorithm allows for directly printin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00606","kind":"arxiv","version":4},"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/1812.00606/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":"2026-07-04T23:59:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8HYzl89VLram7sFTH+JxHYIoae/3+1YgcmWp5FkcahHVZnJVJz/gk75udVKxqfy2Rh9utPkGsSjzuvX7+MSMBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T00:46:50.929515Z"},"content_sha256":"f19a4433f6ffebb26750b75ceb0cd71e5a94697d8725b51d0e82a66961a7e663","schema_version":"1.0","event_id":"sha256:f19a4433f6ffebb26750b75ceb0cd71e5a94697d8725b51d0e82a66961a7e663"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UGB5AF5KNESO5DNU3E3UH66IVT/bundle.json","state_url":"https://pith.science/pith/UGB5AF5KNESO5DNU3E3UH66IVT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UGB5AF5KNESO5DNU3E3UH66IVT/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":"2026-08-11T00:46:50Z","links":{"resolver":"https://pith.science/pith/UGB5AF5KNESO5DNU3E3UH66IVT","bundle":"https://pith.science/pith/UGB5AF5KNESO5DNU3E3UH66IVT/bundle.json","state":"https://pith.science/pith/UGB5AF5KNESO5DNU3E3UH66IVT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UGB5AF5KNESO5DNU3E3UH66IVT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UGB5AF5KNESO5DNU3E3UH66IVT","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":"851ade51b923038b8ea729252a1d08bd48d722f5798fdee7c3922885e7f1e216","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-12-03T08:53:33Z","title_canon_sha256":"8982fbdd9a989bb2854e5404e051c735891365f7453ba0dec153eebccc61242d"},"schema_version":"1.0","source":{"id":"1812.00606","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.00606","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"arxiv_version","alias_value":"1812.00606v4","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.00606","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_12","alias_value":"UGB5AF5KNESO","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_16","alias_value":"UGB5AF5KNESO5DNU","created_at":"2026-07-04T23:59:47Z"},{"alias_kind":"pith_short_8","alias_value":"UGB5AF5K","created_at":"2026-07-04T23:59:47Z"}],"graph_snapshots":[{"event_id":"sha256:f19a4433f6ffebb26750b75ceb0cd71e5a94697d8725b51d0e82a66961a7e663","target":"graph","created_at":"2026-07-04T23:59:47Z","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/1812.00606/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a method for fabricating general models with multi-directional 3D printing systems by printing different model regions along with different directions. The core of our method is a support-effective volume decomposition algorithm that minimizes the area of the regions with large overhangs. A beam-guided searching algorithm with manufacturing constraints determines the optimal volume decomposition, which is represented by a sequence of clipping planes. While current approaches require manually assembling separate components into a final model, our algorithm allows for directly printin","authors_text":"Charlie C.L. Wang, Chengkai Dai, Chenming Wu, Guoxin Fang, Yong-jin Liu","cross_cats":["cs.GR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-12-03T08:53:33Z","title":"General Support-Effective Decomposition for Multi-Directional 3D Printing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.00606","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:cf56ebdfb422172f44245070264e8193e4b9f094534777f84d745e66850a873f","target":"record","created_at":"2026-07-04T23:59:47Z","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":"851ade51b923038b8ea729252a1d08bd48d722f5798fdee7c3922885e7f1e216","cross_cats_sorted":["cs.GR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.RO","submitted_at":"2018-12-03T08:53:33Z","title_canon_sha256":"8982fbdd9a989bb2854e5404e051c735891365f7453ba0dec153eebccc61242d"},"schema_version":"1.0","source":{"id":"1812.00606","kind":"arxiv","version":4}},"canonical_sha256":"a183d017aa6924ee8db4d93743fbc8acf8583257a9b71e83a87e75cc77ad328e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a183d017aa6924ee8db4d93743fbc8acf8583257a9b71e83a87e75cc77ad328e","first_computed_at":"2026-07-04T23:59:47.522114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:47.522114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XMAOCd8NWmEgOc9seAb8+NXMgD6m4rRSP6QYB5t9tF4XUU4vQ0rmfYjtxoORYFLwslycVPi2HFfTCxOUTDs/AA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:47.522559Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.00606","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf56ebdfb422172f44245070264e8193e4b9f094534777f84d745e66850a873f","sha256:f19a4433f6ffebb26750b75ceb0cd71e5a94697d8725b51d0e82a66961a7e663"],"state_sha256":"774564f511fa78034192f3d7c731ba4349c1a14e821e298929eee6157c131b6b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HL4sCMAmZ2oqq4WOhOafl84UGjesSQpn+aFfaT437dmQC4HZC74E/G0vMT9wE7jql3UX/+/osl0q7jKRPmfHAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T00:46:50.935376Z","bundle_sha256":"74bd0f7d40e96228c0be5d6be7a3f91790df787cb8b21bb144e0bb9c46570655"}}