{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:R6MZN73EPF34VWRVHT6G5QWW2D","short_pith_number":"pith:R6MZN73E","canonical_record":{"source":{"id":"1103.2952","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2011-03-14T15:20:46Z","cross_cats_sorted":["math.OC"],"title_canon_sha256":"fcdb5dc0ff517755587e5648834a90d43cad23975764a8bf93e6b8adb11bfb18","abstract_canon_sha256":"6fabe15445868781877e4d368a28f0f5dd269d68a1cae9076843da2f0a8a7885"},"schema_version":"1.0"},"canonical_sha256":"8f9996ff647977cada353cfc6ec2d6d0fba224c83e0442a49bd2384dd397a2c1","source":{"kind":"arxiv","id":"1103.2952","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.2952","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"arxiv_version","alias_value":"1103.2952v1","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.2952","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"pith_short_12","alias_value":"R6MZN73EPF34","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"R6MZN73EPF34VWRV","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"R6MZN73E","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:R6MZN73EPF34VWRVHT6G5QWW2D","target":"record","payload":{"canonical_record":{"source":{"id":"1103.2952","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2011-03-14T15:20:46Z","cross_cats_sorted":["math.OC"],"title_canon_sha256":"fcdb5dc0ff517755587e5648834a90d43cad23975764a8bf93e6b8adb11bfb18","abstract_canon_sha256":"6fabe15445868781877e4d368a28f0f5dd269d68a1cae9076843da2f0a8a7885"},"schema_version":"1.0"},"canonical_sha256":"8f9996ff647977cada353cfc6ec2d6d0fba224c83e0442a49bd2384dd397a2c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:46.140272Z","signature_b64":"bWaA8pgFaMOK313JWas0qW1kcGLfOGj7AllQ7MxKCQj5islerDbyPRUOuvdcGwWVK+Divlzp8ln1FrqEIFP0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f9996ff647977cada353cfc6ec2d6d0fba224c83e0442a49bd2384dd397a2c1","last_reissued_at":"2026-05-18T04:26:46.139601Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:46.139601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.2952","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":"2026-05-18T04:26:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a7ZJ+WU6nMvXONBKijcypruUzPbvtq8Wj0NeXfh0gG+DtLsAdq1ltFRpdKYQ+EjKqqMyAxuFNNfhvDl8gCslDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:54:36.858604Z"},"content_sha256":"e66d3e071c502ccc4bb424555360d3a138d3b2e3eef3c8f1a4fde8c52c4c743b","schema_version":"1.0","event_id":"sha256:e66d3e071c502ccc4bb424555360d3a138d3b2e3eef3c8f1a4fde8c52c4c743b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:R6MZN73EPF34VWRVHT6G5QWW2D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data sets of very large linear feasibility problems solved by projection methods","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.OC"],"primary_cat":"cs.MS","authors_text":"Wei Chen","submitted_at":"2011-03-14T15:20:46Z","abstract_excerpt":"We give a link to a page on the Web on which we deposited a set of eight huge Linear Programming (LP) problems for Intensity-Modulated Proton Therapy (IMPT) treatment planning. These huge LP problems were employed in our recent research and we were asked to make them public."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.2952","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":""},"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":"2026-05-18T04:26:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v0iZ6aNxhuKreMD+f2noGEAN6LC/7i8Wt/Rva2uFxjh4JMjp8DWWwFKI6wEcfykkDBi04pwaK3QRwhY7FambCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T21:54:36.859251Z"},"content_sha256":"f8310d110ab28c9607c2a7958e106b6f33d2f8866272c6556a171b8d7212998e","schema_version":"1.0","event_id":"sha256:f8310d110ab28c9607c2a7958e106b6f33d2f8866272c6556a171b8d7212998e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R6MZN73EPF34VWRVHT6G5QWW2D/bundle.json","state_url":"https://pith.science/pith/R6MZN73EPF34VWRVHT6G5QWW2D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R6MZN73EPF34VWRVHT6G5QWW2D/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":"2026-05-26T21:54:36Z","links":{"resolver":"https://pith.science/pith/R6MZN73EPF34VWRVHT6G5QWW2D","bundle":"https://pith.science/pith/R6MZN73EPF34VWRVHT6G5QWW2D/bundle.json","state":"https://pith.science/pith/R6MZN73EPF34VWRVHT6G5QWW2D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R6MZN73EPF34VWRVHT6G5QWW2D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:R6MZN73EPF34VWRVHT6G5QWW2D","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":"6fabe15445868781877e4d368a28f0f5dd269d68a1cae9076843da2f0a8a7885","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2011-03-14T15:20:46Z","title_canon_sha256":"fcdb5dc0ff517755587e5648834a90d43cad23975764a8bf93e6b8adb11bfb18"},"schema_version":"1.0","source":{"id":"1103.2952","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.2952","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"arxiv_version","alias_value":"1103.2952v1","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.2952","created_at":"2026-05-18T04:26:46Z"},{"alias_kind":"pith_short_12","alias_value":"R6MZN73EPF34","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"R6MZN73EPF34VWRV","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"R6MZN73E","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:f8310d110ab28c9607c2a7958e106b6f33d2f8866272c6556a171b8d7212998e","target":"graph","created_at":"2026-05-18T04:26:46Z","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"},"paper":{"abstract_excerpt":"We give a link to a page on the Web on which we deposited a set of eight huge Linear Programming (LP) problems for Intensity-Modulated Proton Therapy (IMPT) treatment planning. These huge LP problems were employed in our recent research and we were asked to make them public.","authors_text":"Wei Chen","cross_cats":["math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2011-03-14T15:20:46Z","title":"Data sets of very large linear feasibility problems solved by projection methods"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.2952","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:e66d3e071c502ccc4bb424555360d3a138d3b2e3eef3c8f1a4fde8c52c4c743b","target":"record","created_at":"2026-05-18T04:26:46Z","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":"6fabe15445868781877e4d368a28f0f5dd269d68a1cae9076843da2f0a8a7885","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MS","submitted_at":"2011-03-14T15:20:46Z","title_canon_sha256":"fcdb5dc0ff517755587e5648834a90d43cad23975764a8bf93e6b8adb11bfb18"},"schema_version":"1.0","source":{"id":"1103.2952","kind":"arxiv","version":1}},"canonical_sha256":"8f9996ff647977cada353cfc6ec2d6d0fba224c83e0442a49bd2384dd397a2c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f9996ff647977cada353cfc6ec2d6d0fba224c83e0442a49bd2384dd397a2c1","first_computed_at":"2026-05-18T04:26:46.139601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:26:46.139601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bWaA8pgFaMOK313JWas0qW1kcGLfOGj7AllQ7MxKCQj5islerDbyPRUOuvdcGwWVK+Divlzp8ln1FrqEIFP0Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:26:46.140272Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.2952","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e66d3e071c502ccc4bb424555360d3a138d3b2e3eef3c8f1a4fde8c52c4c743b","sha256:f8310d110ab28c9607c2a7958e106b6f33d2f8866272c6556a171b8d7212998e"],"state_sha256":"0d9206fdc36944a774ee9e6eb85f71f72c9e218a03d0f57952de379c2d44b955"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QcH5zUF1trSMnObzGGzJZWJRsqDca6faa1lDD2aQGi0btv9innReEAnSUAYb7vsbVnb3DphEyG2EUy3TbDniCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T21:54:36.862449Z","bundle_sha256":"036f2cd7c55008106343013d96fe9af10c906965996e052592864677755fc89b"}}