{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:UOPHBL6HYQHEIGIZV733AW6XZN","short_pith_number":"pith:UOPHBL6H","canonical_record":{"source":{"id":"1208.4722","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2012-08-23T11:10:38Z","cross_cats_sorted":[],"title_canon_sha256":"e4b33275d4aefebdf6c4eb2f3c8ffabf3b1b02f27eaf586d1da7164c1564578b","abstract_canon_sha256":"0effbb54ffb385e9c66e7389fd9364bfc3e74f355d4ed357e22474437d35b78c"},"schema_version":"1.0"},"canonical_sha256":"a39e70afc7c40e441919aff7b05bd7cb584158da2ea82bf651c2d7efa83d493d","source":{"kind":"arxiv","id":"1208.4722","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4722","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4722v2","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4722","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"pith_short_12","alias_value":"UOPHBL6HYQHE","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UOPHBL6HYQHEIGIZ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UOPHBL6H","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:UOPHBL6HYQHEIGIZV733AW6XZN","target":"record","payload":{"canonical_record":{"source":{"id":"1208.4722","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2012-08-23T11:10:38Z","cross_cats_sorted":[],"title_canon_sha256":"e4b33275d4aefebdf6c4eb2f3c8ffabf3b1b02f27eaf586d1da7164c1564578b","abstract_canon_sha256":"0effbb54ffb385e9c66e7389fd9364bfc3e74f355d4ed357e22474437d35b78c"},"schema_version":"1.0"},"canonical_sha256":"a39e70afc7c40e441919aff7b05bd7cb584158da2ea82bf651c2d7efa83d493d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:47:52.416059Z","signature_b64":"B5p9q5js3TIZf6BbJW1MyicT7d2D02EK/mHr6egJSMxYys9bPGqZAHak1VjqjQ7YUggsGfgJjzmCmMbWnarGDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a39e70afc7c40e441919aff7b05bd7cb584158da2ea82bf651c2d7efa83d493d","last_reissued_at":"2026-05-18T03:47:52.415069Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:47:52.415069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.4722","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:47:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Jna4hyOu6dJJwnAt++8pRfb/rBM9Y769naF87QKm/z2153dJ32285J3TMfuzukRwgmImAZYDou72DyQfEXAAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T08:16:07.627886Z"},"content_sha256":"22acaa258eb4cc2e8fdcbe704c3d6d4a347209d00271f312e816b900f5c98197","schema_version":"1.0","event_id":"sha256:22acaa258eb4cc2e8fdcbe704c3d6d4a347209d00271f312e816b900f5c98197"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:UOPHBL6HYQHEIGIZV733AW6XZN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implementing Access Control Markov Decision Processes with GLPK/GMPL","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Charles Morisset","submitted_at":"2012-08-23T11:10:38Z","abstract_excerpt":"In a recent approach, we proposed to model an access control mechanism as a Markov Decision Process, thus claiming that in order to make an access control decision, one can use well-defined mechanisms from decision theory. We present in this paper an implementation of such mechanism, using the open-source solver GLPK, and we model the problem in the GMPL language. We illustrate our approach with a simple, yet expressive example, and we show how the variation of some parameters can change the final outcome. In particular, we show that in addition to returning a decision, we can also calculate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4722","kind":"arxiv","version":2},"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":"2026-05-18T03:47:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rNZsm/dRM/4DqRaAKnyIG0BnThi2pltYJiOCViPmq54LQv2tNveFZRzmvyKWajCF31SY+wJurq2nv0LtNgaNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T08:16:07.628236Z"},"content_sha256":"52e57823bf2030d5e2542850d62fdc23adf02e7f6bef8cb88b547972a67b7c5b","schema_version":"1.0","event_id":"sha256:52e57823bf2030d5e2542850d62fdc23adf02e7f6bef8cb88b547972a67b7c5b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UOPHBL6HYQHEIGIZV733AW6XZN/bundle.json","state_url":"https://pith.science/pith/UOPHBL6HYQHEIGIZV733AW6XZN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UOPHBL6HYQHEIGIZV733AW6XZN/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":"2026-06-30T08:16:07Z","links":{"resolver":"https://pith.science/pith/UOPHBL6HYQHEIGIZV733AW6XZN","bundle":"https://pith.science/pith/UOPHBL6HYQHEIGIZV733AW6XZN/bundle.json","state":"https://pith.science/pith/UOPHBL6HYQHEIGIZV733AW6XZN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UOPHBL6HYQHEIGIZV733AW6XZN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:UOPHBL6HYQHEIGIZV733AW6XZN","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":"0effbb54ffb385e9c66e7389fd9364bfc3e74f355d4ed357e22474437d35b78c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2012-08-23T11:10:38Z","title_canon_sha256":"e4b33275d4aefebdf6c4eb2f3c8ffabf3b1b02f27eaf586d1da7164c1564578b"},"schema_version":"1.0","source":{"id":"1208.4722","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.4722","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"arxiv_version","alias_value":"1208.4722v2","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.4722","created_at":"2026-05-18T03:47:52Z"},{"alias_kind":"pith_short_12","alias_value":"UOPHBL6HYQHE","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"UOPHBL6HYQHEIGIZ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"UOPHBL6H","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:52e57823bf2030d5e2542850d62fdc23adf02e7f6bef8cb88b547972a67b7c5b","target":"graph","created_at":"2026-05-18T03:47:52Z","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":"In a recent approach, we proposed to model an access control mechanism as a Markov Decision Process, thus claiming that in order to make an access control decision, one can use well-defined mechanisms from decision theory. We present in this paper an implementation of such mechanism, using the open-source solver GLPK, and we model the problem in the GMPL language. We illustrate our approach with a simple, yet expressive example, and we show how the variation of some parameters can change the final outcome. In particular, we show that in addition to returning a decision, we can also calculate t","authors_text":"Charles Morisset","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2012-08-23T11:10:38Z","title":"Implementing Access Control Markov Decision Processes with GLPK/GMPL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.4722","kind":"arxiv","version":2},"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":"sha256:22acaa258eb4cc2e8fdcbe704c3d6d4a347209d00271f312e816b900f5c98197","target":"record","created_at":"2026-05-18T03:47:52Z","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":"0effbb54ffb385e9c66e7389fd9364bfc3e74f355d4ed357e22474437d35b78c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2012-08-23T11:10:38Z","title_canon_sha256":"e4b33275d4aefebdf6c4eb2f3c8ffabf3b1b02f27eaf586d1da7164c1564578b"},"schema_version":"1.0","source":{"id":"1208.4722","kind":"arxiv","version":2}},"canonical_sha256":"a39e70afc7c40e441919aff7b05bd7cb584158da2ea82bf651c2d7efa83d493d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a39e70afc7c40e441919aff7b05bd7cb584158da2ea82bf651c2d7efa83d493d","first_computed_at":"2026-05-18T03:47:52.415069Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:47:52.415069Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"B5p9q5js3TIZf6BbJW1MyicT7d2D02EK/mHr6egJSMxYys9bPGqZAHak1VjqjQ7YUggsGfgJjzmCmMbWnarGDw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:47:52.416059Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.4722","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22acaa258eb4cc2e8fdcbe704c3d6d4a347209d00271f312e816b900f5c98197","sha256:52e57823bf2030d5e2542850d62fdc23adf02e7f6bef8cb88b547972a67b7c5b"],"state_sha256":"0b7496525bb149721cd48783b1698b25c5a26af44371224777c8ab4888cfc009"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RsVLB75prgKvNyOAOc9Is74Y2k6Vnd2Or1RgFSffbOoqkn8sGDWupyPyF5nwwXLcSI62UgBe49ci5cuLSrAEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T08:16:07.631898Z","bundle_sha256":"3ccb8ae8828276926836214a38852b177f49ea76d4b9e4ec0050da110e76f3ab"}}