{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DVOV5PJBTXNJFXC5RKTSIKW3AN","short_pith_number":"pith:DVOV5PJB","canonical_record":{"source":{"id":"2505.18240","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-23T14:27:57Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"512bcb9483b2e587266c5c4742cfd2f64437c5fe1865bbd9e582541f23a5d804","abstract_canon_sha256":"0fed5dc2bbcdc7258b38fd8e021cbdc6c359a7eab87a556e465134bbcb517d5a"},"schema_version":"1.0"},"canonical_sha256":"1d5d5ebd219dda92dc5d8aa7242adb0364c99e23dad16f99d8e7fba30ee5b6e1","source":{"kind":"arxiv","id":"2505.18240","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18240","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18240v1","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18240","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_12","alias_value":"DVOV5PJBTXNJ","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_16","alias_value":"DVOV5PJBTXNJFXC5","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_8","alias_value":"DVOV5PJB","created_at":"2026-07-05T11:08:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DVOV5PJBTXNJFXC5RKTSIKW3AN","target":"record","payload":{"canonical_record":{"source":{"id":"2505.18240","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-23T14:27:57Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"512bcb9483b2e587266c5c4742cfd2f64437c5fe1865bbd9e582541f23a5d804","abstract_canon_sha256":"0fed5dc2bbcdc7258b38fd8e021cbdc6c359a7eab87a556e465134bbcb517d5a"},"schema_version":"1.0"},"canonical_sha256":"1d5d5ebd219dda92dc5d8aa7242adb0364c99e23dad16f99d8e7fba30ee5b6e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:08:43.482245Z","signature_b64":"HiWNucXYKKkeAQcnfxu2mO9Zmu+4+Q+v8qaWUGvuk/BbjgTt7OcWCeNv5hUEv+TRpF32gDpWtXwFEpcgVVKhDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d5d5ebd219dda92dc5d8aa7242adb0364c99e23dad16f99d8e7fba30ee5b6e1","last_reissued_at":"2026-07-05T11:08:43.481789Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:08:43.481789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.18240","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":"2026-07-05T11:08:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i9VyqFE7+0WBzJo2p4ITOCrPoqRcVvTBuxtqhXExcqSIX5qyh+zqQRgEzgVRIHbW4ZZz1HIwNDEJT01LlW7iAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:38:25.779770Z"},"content_sha256":"77b5fcb5e0f0d294cdf76d6126980f2bffd437c5be2e1da7762ae8e31a51ee11","schema_version":"1.0","event_id":"sha256:77b5fcb5e0f0d294cdf76d6126980f2bffd437c5be2e1da7762ae8e31a51ee11"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DVOV5PJBTXNJFXC5RKTSIKW3AN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Taming LLMs with Negative Samples: A Reference-Free Framework to Evaluate Presentation Content with Actionable Feedback","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CL","authors_text":"Ananth Muppidi, Dharun D A, Sambaran Bandyopadhyay, Tarak Das, Tripti Shukla","submitted_at":"2025-05-23T14:27:57Z","abstract_excerpt":"The generation of presentation slides automatically is an important problem in the era of generative AI. This paper focuses on evaluating multimodal content in presentation slides that can effectively summarize a document and convey concepts to a broad audience. We introduce a benchmark dataset, RefSlides, consisting of human-made high-quality presentations that span various topics. Next, we propose a set of metrics to characterize different intrinsic properties of the content of a presentation and present REFLEX, an evaluation approach that generates scores and actionable feedback for these m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18240","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/2505.18240/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":"2026-07-05T11:08:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YAV3jpOnRBB9+FMu8Ttgxeqigi8VRJ+6Lk2VAXMHzYGNmB1SOhaOiZtpun2tLA3xfJfRDfCFPAN4w2wRxq4EAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:38:25.780167Z"},"content_sha256":"a35fae874849cc2c9ff9ca37374db4ab1d2d7d6288b57689b61cda2c5029eaab","schema_version":"1.0","event_id":"sha256:a35fae874849cc2c9ff9ca37374db4ab1d2d7d6288b57689b61cda2c5029eaab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/bundle.json","state_url":"https://pith.science/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/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":"2026-08-07T06:38:25Z","links":{"resolver":"https://pith.science/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN","bundle":"https://pith.science/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/bundle.json","state":"https://pith.science/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DVOV5PJBTXNJFXC5RKTSIKW3AN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DVOV5PJBTXNJFXC5RKTSIKW3AN","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":"0fed5dc2bbcdc7258b38fd8e021cbdc6c359a7eab87a556e465134bbcb517d5a","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-23T14:27:57Z","title_canon_sha256":"512bcb9483b2e587266c5c4742cfd2f64437c5fe1865bbd9e582541f23a5d804"},"schema_version":"1.0","source":{"id":"2505.18240","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18240","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18240v1","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18240","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_12","alias_value":"DVOV5PJBTXNJ","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_16","alias_value":"DVOV5PJBTXNJFXC5","created_at":"2026-07-05T11:08:43Z"},{"alias_kind":"pith_short_8","alias_value":"DVOV5PJB","created_at":"2026-07-05T11:08:43Z"}],"graph_snapshots":[{"event_id":"sha256:a35fae874849cc2c9ff9ca37374db4ab1d2d7d6288b57689b61cda2c5029eaab","target":"graph","created_at":"2026-07-05T11:08:43Z","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/2505.18240/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The generation of presentation slides automatically is an important problem in the era of generative AI. This paper focuses on evaluating multimodal content in presentation slides that can effectively summarize a document and convey concepts to a broad audience. We introduce a benchmark dataset, RefSlides, consisting of human-made high-quality presentations that span various topics. Next, we propose a set of metrics to characterize different intrinsic properties of the content of a presentation and present REFLEX, an evaluation approach that generates scores and actionable feedback for these m","authors_text":"Ananth Muppidi, Dharun D A, Sambaran Bandyopadhyay, Tarak Das, Tripti Shukla","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-23T14:27:57Z","title":"Taming LLMs with Negative Samples: A Reference-Free Framework to Evaluate Presentation Content with Actionable Feedback"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18240","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":"sha256:77b5fcb5e0f0d294cdf76d6126980f2bffd437c5be2e1da7762ae8e31a51ee11","target":"record","created_at":"2026-07-05T11:08:43Z","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":"0fed5dc2bbcdc7258b38fd8e021cbdc6c359a7eab87a556e465134bbcb517d5a","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CL","submitted_at":"2025-05-23T14:27:57Z","title_canon_sha256":"512bcb9483b2e587266c5c4742cfd2f64437c5fe1865bbd9e582541f23a5d804"},"schema_version":"1.0","source":{"id":"2505.18240","kind":"arxiv","version":1}},"canonical_sha256":"1d5d5ebd219dda92dc5d8aa7242adb0364c99e23dad16f99d8e7fba30ee5b6e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1d5d5ebd219dda92dc5d8aa7242adb0364c99e23dad16f99d8e7fba30ee5b6e1","first_computed_at":"2026-07-05T11:08:43.481789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:08:43.481789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HiWNucXYKKkeAQcnfxu2mO9Zmu+4+Q+v8qaWUGvuk/BbjgTt7OcWCeNv5hUEv+TRpF32gDpWtXwFEpcgVVKhDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:08:43.482245Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.18240","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:77b5fcb5e0f0d294cdf76d6126980f2bffd437c5be2e1da7762ae8e31a51ee11","sha256:a35fae874849cc2c9ff9ca37374db4ab1d2d7d6288b57689b61cda2c5029eaab"],"state_sha256":"0de071fbc55cea874b9554b2bf785286fed1772e6de25e6ff93b55e8f21df6fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jLShLUUluZGBt+XzW03CMX6IVSX1fYonudM4RJkTixgM9yMfqAAKs5qYrdVGtMdr1zz+9AoHlvrOaUu3Etb5Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T06:38:25.782881Z","bundle_sha256":"ceb01ea575a92c030dd8335e7de23a8333847a4e7a88b9f0681639845ac9c821"}}