{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DIG4A24FCCCPDBLP2FKWJRH73G","short_pith_number":"pith:DIG4A24F","canonical_record":{"source":{"id":"1710.02594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-10-06T21:36:20Z","cross_cats_sorted":[],"title_canon_sha256":"bd7f1bb7a004a36ab746a8203c0ebe4e3490b4518a90307c2099d216fc796f0e","abstract_canon_sha256":"ca3322a2455668c4752fdb56ed69de3d579fc8d758d47903fefdae241cb146d7"},"schema_version":"1.0"},"canonical_sha256":"1a0dc06b851084f1856fd15564c4ffd999751e3872df15f4cb23898bb4fb3d38","source":{"kind":"arxiv","id":"1710.02594","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.02594","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"arxiv_version","alias_value":"1710.02594v1","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.02594","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"pith_short_12","alias_value":"DIG4A24FCCCP","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"DIG4A24FCCCPDBLP","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"DIG4A24F","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DIG4A24FCCCPDBLP2FKWJRH73G","target":"record","payload":{"canonical_record":{"source":{"id":"1710.02594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-10-06T21:36:20Z","cross_cats_sorted":[],"title_canon_sha256":"bd7f1bb7a004a36ab746a8203c0ebe4e3490b4518a90307c2099d216fc796f0e","abstract_canon_sha256":"ca3322a2455668c4752fdb56ed69de3d579fc8d758d47903fefdae241cb146d7"},"schema_version":"1.0"},"canonical_sha256":"1a0dc06b851084f1856fd15564c4ffd999751e3872df15f4cb23898bb4fb3d38","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:29.373729Z","signature_b64":"rrtHyvdJ3K8F4oznPH1qK5giYSYvcc0WMVDyAGA62ohfNoXiZBZlpLNBoioAAFI/M6wIKOlkmiJpPVXp0C1eDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1a0dc06b851084f1856fd15564c4ffd999751e3872df15f4cb23898bb4fb3d38","last_reissued_at":"2026-05-18T00:33:29.373210Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:29.373210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.02594","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":"2026-05-18T00:33:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WnXZxpqjuYEzH7CS9GGirKS1dmlVMJIcDx9Se1uB8w+PYVeIkwIWkCYY+vE2QHCcZbC3ypKk5h+2bYuJ7vdEBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:32:05.193589Z"},"content_sha256":"71d6a9e96efb3f9bb53e672dc0230b2c1a1535c71cee52469db7c531df81a844","schema_version":"1.0","event_id":"sha256:71d6a9e96efb3f9bb53e672dc0230b2c1a1535c71cee52469db7c531df81a844"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DIG4A24FCCCPDBLP2FKWJRH73G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fibred Computational Effects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Danel Ahman","submitted_at":"2017-10-06T21:36:20Z","abstract_excerpt":"Dependent types provide a lightweight and modular means to integrate programming and formal program verification. In particular, the types of programs written in dependently typed programming languages (Agda, Idris, F*, etc.) can be used to express specifications of program correctness. These specifications can vary from being as simple as requiring the divisor in the division function to be non-zero, to as complex as specifying the correctness of compilers of industrial-strength languages. Successful compilation of a program then guarantees that it satisfies its type-based specification.\n  Wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.02594","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":"2026-05-18T00:33:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AEqF4q/byIHTqglwsZ+duyJlFOvMhTT6ZKn7p6iQGFjn63c4c9kjdGHNd7aeADux61VqLhdECX23FoH23J19Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:32:05.194237Z"},"content_sha256":"71d8eda203b372c6699328b3d1844cb024011e74af9c2be33e6667e2fcc52ef9","schema_version":"1.0","event_id":"sha256:71d8eda203b372c6699328b3d1844cb024011e74af9c2be33e6667e2fcc52ef9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DIG4A24FCCCPDBLP2FKWJRH73G/bundle.json","state_url":"https://pith.science/pith/DIG4A24FCCCPDBLP2FKWJRH73G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DIG4A24FCCCPDBLP2FKWJRH73G/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":"2026-05-26T22:32:05Z","links":{"resolver":"https://pith.science/pith/DIG4A24FCCCPDBLP2FKWJRH73G","bundle":"https://pith.science/pith/DIG4A24FCCCPDBLP2FKWJRH73G/bundle.json","state":"https://pith.science/pith/DIG4A24FCCCPDBLP2FKWJRH73G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DIG4A24FCCCPDBLP2FKWJRH73G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DIG4A24FCCCPDBLP2FKWJRH73G","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":"ca3322a2455668c4752fdb56ed69de3d579fc8d758d47903fefdae241cb146d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-10-06T21:36:20Z","title_canon_sha256":"bd7f1bb7a004a36ab746a8203c0ebe4e3490b4518a90307c2099d216fc796f0e"},"schema_version":"1.0","source":{"id":"1710.02594","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.02594","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"arxiv_version","alias_value":"1710.02594v1","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.02594","created_at":"2026-05-18T00:33:29Z"},{"alias_kind":"pith_short_12","alias_value":"DIG4A24FCCCP","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"DIG4A24FCCCPDBLP","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"DIG4A24F","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:71d8eda203b372c6699328b3d1844cb024011e74af9c2be33e6667e2fcc52ef9","target":"graph","created_at":"2026-05-18T00:33:29Z","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":"Dependent types provide a lightweight and modular means to integrate programming and formal program verification. In particular, the types of programs written in dependently typed programming languages (Agda, Idris, F*, etc.) can be used to express specifications of program correctness. These specifications can vary from being as simple as requiring the divisor in the division function to be non-zero, to as complex as specifying the correctness of compilers of industrial-strength languages. Successful compilation of a program then guarantees that it satisfies its type-based specification.\n  Wh","authors_text":"Danel Ahman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-10-06T21:36:20Z","title":"Fibred Computational Effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.02594","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":"sha256:71d6a9e96efb3f9bb53e672dc0230b2c1a1535c71cee52469db7c531df81a844","target":"record","created_at":"2026-05-18T00:33:29Z","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":"ca3322a2455668c4752fdb56ed69de3d579fc8d758d47903fefdae241cb146d7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-10-06T21:36:20Z","title_canon_sha256":"bd7f1bb7a004a36ab746a8203c0ebe4e3490b4518a90307c2099d216fc796f0e"},"schema_version":"1.0","source":{"id":"1710.02594","kind":"arxiv","version":1}},"canonical_sha256":"1a0dc06b851084f1856fd15564c4ffd999751e3872df15f4cb23898bb4fb3d38","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a0dc06b851084f1856fd15564c4ffd999751e3872df15f4cb23898bb4fb3d38","first_computed_at":"2026-05-18T00:33:29.373210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:29.373210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rrtHyvdJ3K8F4oznPH1qK5giYSYvcc0WMVDyAGA62ohfNoXiZBZlpLNBoioAAFI/M6wIKOlkmiJpPVXp0C1eDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:29.373729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.02594","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:71d6a9e96efb3f9bb53e672dc0230b2c1a1535c71cee52469db7c531df81a844","sha256:71d8eda203b372c6699328b3d1844cb024011e74af9c2be33e6667e2fcc52ef9"],"state_sha256":"590b00b344bb72759b5d846cb8fb4f025c55803a3c9b537e136555d5a15cc968"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F1x6opyRNZoBZqZdtIglchQfEBqCkKZ4q9RQGhSGeXKG6EKBSdF61Qo4nSxehkHfD5MLlUjsjc4PIiQMGGqPBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T22:32:05.197361Z","bundle_sha256":"c32deaecdfa46c7535ec775c378f15ee2305ac06f6892d4a54b2b07de84afd95"}}