{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:YXGNAMVNG5K53DDNRYHW363IEC","short_pith_number":"pith:YXGNAMVN","canonical_record":{"source":{"id":"2003.03043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2020-03-06T05:54:11Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"b66218f1237538c9d7f5d53bfcc8c9d7007c48ba57f06a3e479373882540dcb2","abstract_canon_sha256":"68bc4a5acb294a6232399b3c381f68bcb479aa24a8a934a8fc27cc4acda1b10f"},"schema_version":"1.0"},"canonical_sha256":"c5ccd032ad3755dd8c6d8e0f6dfb682087211ea1f610954f3e4f83c3ee9ed628","source":{"kind":"arxiv","id":"2003.03043","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.03043","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"arxiv_version","alias_value":"2003.03043v1","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.03043","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_12","alias_value":"YXGNAMVNG5K5","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_16","alias_value":"YXGNAMVNG5K53DDN","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_8","alias_value":"YXGNAMVN","created_at":"2026-07-05T00:46:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:YXGNAMVNG5K53DDNRYHW363IEC","target":"record","payload":{"canonical_record":{"source":{"id":"2003.03043","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2020-03-06T05:54:11Z","cross_cats_sorted":["cs.DC"],"title_canon_sha256":"b66218f1237538c9d7f5d53bfcc8c9d7007c48ba57f06a3e479373882540dcb2","abstract_canon_sha256":"68bc4a5acb294a6232399b3c381f68bcb479aa24a8a934a8fc27cc4acda1b10f"},"schema_version":"1.0"},"canonical_sha256":"c5ccd032ad3755dd8c6d8e0f6dfb682087211ea1f610954f3e4f83c3ee9ed628","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:46:09.323968Z","signature_b64":"Mln1AoOLhHVdm36NmAYdhnCIDAfohR+/ONMqBz02tfqd7GeIoT7vuD550TYP1FIaSWPEf3W3Vhw5FxzA4VTTCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5ccd032ad3755dd8c6d8e0f6dfb682087211ea1f610954f3e4f83c3ee9ed628","last_reissued_at":"2026-07-05T00:46:09.323419Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:46:09.323419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2003.03043","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":"2026-07-05T00:46:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jn6TKRK5LTY9OBxxAgQFvUrxVSV1QEcjOm4d+7sLsCrfulOQFC3XwAZlA2sncoQ6zjh1Gp0ChxrhZ9WQchPyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:34:44.518557Z"},"content_sha256":"e41474df42e25e7115feab0b7c5c1161d3de6dcce3185909fd045116746adfbd","schema_version":"1.0","event_id":"sha256:e41474df42e25e7115feab0b7c5c1161d3de6dcce3185909fd045116746adfbd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:YXGNAMVNG5K53DDNRYHW363IEC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"LUXOR: An FPGA Logic Cell Architecture for Efficient Compressor Tree Implementations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DC"],"primary_cat":"cs.AR","authors_text":"David Boland, Hao Zhou, Lingli Wang, Philip H.W. Leong, Seyedramin Rasoulinezhad, Siddhartha","submitted_at":"2020-03-06T05:54:11Z","abstract_excerpt":"We propose two tiers of modifications to FPGA logic cell architecture to deliver a variety of performance and utilization benefits with only minor area overheads. In the irst tier, we augment existing commercial logic cell datapaths with a 6-input XOR gate in order to improve the expressiveness of each element, while maintaining backward compatibility. This new architecture is vendor-agnostic, and we refer to it as LUXOR. We also consider a secondary tier of vendor-speciic modifications to both Xilinx and Intel FPGAs, which we refer to as X-LUXOR+ and I-LUXOR+ respectively. We demonstrate that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.03043","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/2003.03043/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":"2026-07-05T00:46:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oefddzdb1b6Xz9iRCDXjep7e7sEm1mdvlDlKa4zSJBOTBjOWUEGW/EHjj9PgLM6kD4cYLswhXrZls/B0ilBSAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T11:34:44.518937Z"},"content_sha256":"f43f58eda3c6ea88969f635f6ea24355ada235d4cc1f338552f5b9b769722f2e","schema_version":"1.0","event_id":"sha256:f43f58eda3c6ea88969f635f6ea24355ada235d4cc1f338552f5b9b769722f2e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXGNAMVNG5K53DDNRYHW363IEC/bundle.json","state_url":"https://pith.science/pith/YXGNAMVNG5K53DDNRYHW363IEC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXGNAMVNG5K53DDNRYHW363IEC/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":"2026-07-07T11:34:44Z","links":{"resolver":"https://pith.science/pith/YXGNAMVNG5K53DDNRYHW363IEC","bundle":"https://pith.science/pith/YXGNAMVNG5K53DDNRYHW363IEC/bundle.json","state":"https://pith.science/pith/YXGNAMVNG5K53DDNRYHW363IEC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXGNAMVNG5K53DDNRYHW363IEC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YXGNAMVNG5K53DDNRYHW363IEC","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":"68bc4a5acb294a6232399b3c381f68bcb479aa24a8a934a8fc27cc4acda1b10f","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2020-03-06T05:54:11Z","title_canon_sha256":"b66218f1237538c9d7f5d53bfcc8c9d7007c48ba57f06a3e479373882540dcb2"},"schema_version":"1.0","source":{"id":"2003.03043","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.03043","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"arxiv_version","alias_value":"2003.03043v1","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.03043","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_12","alias_value":"YXGNAMVNG5K5","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_16","alias_value":"YXGNAMVNG5K53DDN","created_at":"2026-07-05T00:46:09Z"},{"alias_kind":"pith_short_8","alias_value":"YXGNAMVN","created_at":"2026-07-05T00:46:09Z"}],"graph_snapshots":[{"event_id":"sha256:f43f58eda3c6ea88969f635f6ea24355ada235d4cc1f338552f5b9b769722f2e","target":"graph","created_at":"2026-07-05T00:46:09Z","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/2003.03043/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We propose two tiers of modifications to FPGA logic cell architecture to deliver a variety of performance and utilization benefits with only minor area overheads. In the irst tier, we augment existing commercial logic cell datapaths with a 6-input XOR gate in order to improve the expressiveness of each element, while maintaining backward compatibility. This new architecture is vendor-agnostic, and we refer to it as LUXOR. We also consider a secondary tier of vendor-speciic modifications to both Xilinx and Intel FPGAs, which we refer to as X-LUXOR+ and I-LUXOR+ respectively. We demonstrate that","authors_text":"David Boland, Hao Zhou, Lingli Wang, Philip H.W. Leong, Seyedramin Rasoulinezhad, Siddhartha","cross_cats":["cs.DC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2020-03-06T05:54:11Z","title":"LUXOR: An FPGA Logic Cell Architecture for Efficient Compressor Tree Implementations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.03043","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:e41474df42e25e7115feab0b7c5c1161d3de6dcce3185909fd045116746adfbd","target":"record","created_at":"2026-07-05T00:46:09Z","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":"68bc4a5acb294a6232399b3c381f68bcb479aa24a8a934a8fc27cc4acda1b10f","cross_cats_sorted":["cs.DC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2020-03-06T05:54:11Z","title_canon_sha256":"b66218f1237538c9d7f5d53bfcc8c9d7007c48ba57f06a3e479373882540dcb2"},"schema_version":"1.0","source":{"id":"2003.03043","kind":"arxiv","version":1}},"canonical_sha256":"c5ccd032ad3755dd8c6d8e0f6dfb682087211ea1f610954f3e4f83c3ee9ed628","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5ccd032ad3755dd8c6d8e0f6dfb682087211ea1f610954f3e4f83c3ee9ed628","first_computed_at":"2026-07-05T00:46:09.323419Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:46:09.323419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Mln1AoOLhHVdm36NmAYdhnCIDAfohR+/ONMqBz02tfqd7GeIoT7vuD550TYP1FIaSWPEf3W3Vhw5FxzA4VTTCw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:46:09.323968Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.03043","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e41474df42e25e7115feab0b7c5c1161d3de6dcce3185909fd045116746adfbd","sha256:f43f58eda3c6ea88969f635f6ea24355ada235d4cc1f338552f5b9b769722f2e"],"state_sha256":"2695d4303a4e5212db07d7c32482321289368fb90a50869c9207e098306f7184"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8dW/5pODt/OMqWLHxz3+4qSU3dswNYRl9NvywEl8oVB0AyguIhATWjR6zNj2nmEDKZVfjQfQSumEKRB/SBpbBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T11:34:44.520926Z","bundle_sha256":"84c40401e63f3e89e14a95235dfba3cc04d338b32a2a22ef1542131e4fe2a37d"}}