{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:N66NWJFFQVJ3YE362FHQSQTMUK","short_pith_number":"pith:N66NWJFF","canonical_record":{"source":{"id":"1607.01539","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-07-06T09:39:33Z","cross_cats_sorted":[],"title_canon_sha256":"f396c86fd283ef586a7a416f9397aca92a7eb4befb41b5e181efd59687a66b7b","abstract_canon_sha256":"d069c4aca54d130a668a08e17b81f3d55739b80b0cf1eb6a51233be406b397a1"},"schema_version":"1.0"},"canonical_sha256":"6fbcdb24a58553bc137ed14f09426ca2890af2019364659d5df096c65f3adcf1","source":{"kind":"arxiv","id":"1607.01539","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.01539","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"arxiv_version","alias_value":"1607.01539v1","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.01539","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"pith_short_12","alias_value":"N66NWJFFQVJ3","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"N66NWJFFQVJ3YE36","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"N66NWJFF","created_at":"2026-05-18T12:30:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:N66NWJFFQVJ3YE362FHQSQTMUK","target":"record","payload":{"canonical_record":{"source":{"id":"1607.01539","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-07-06T09:39:33Z","cross_cats_sorted":[],"title_canon_sha256":"f396c86fd283ef586a7a416f9397aca92a7eb4befb41b5e181efd59687a66b7b","abstract_canon_sha256":"d069c4aca54d130a668a08e17b81f3d55739b80b0cf1eb6a51233be406b397a1"},"schema_version":"1.0"},"canonical_sha256":"6fbcdb24a58553bc137ed14f09426ca2890af2019364659d5df096c65f3adcf1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:26.179846Z","signature_b64":"PhU4kL9rJO4WAfagj67/r4VJP/3vt3SO9qFGkz8GFgTw6eXFxj/7GFy/FWZOKegiLQemrpJoN8+O/sCLCDWSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fbcdb24a58553bc137ed14f09426ca2890af2019364659d5df096c65f3adcf1","last_reissued_at":"2026-05-18T01:11:26.179335Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:26.179335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1607.01539","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":"2026-05-18T01:11:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dQDsuFH2bf09ONobciIvaOekVO1EYIkioTe4rKgo/NKwGsRrRbi+BLr6TNiSp2tsdxVmOgfIjf7EIx9VSElMBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T23:25:22.808010Z"},"content_sha256":"466212fd8f714350146a52cc338fa14813501dfcf4e0801e5f85c8d9a551cb70","schema_version":"1.0","event_id":"sha256:466212fd8f714350146a52cc338fa14813501dfcf4e0801e5f85c8d9a551cb70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:N66NWJFFQVJ3YE362FHQSQTMUK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Translating Scala Programs to Isabelle/HOL","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Lars Hupel, Viktor Kuncak","submitted_at":"2016-07-06T09:39:33Z","abstract_excerpt":"We present a trustworthy connection between the Leon verification system and the Isabelle proof assistant. Leon is a system for verifying functional Scala programs. It uses a variety of automated theorem provers (ATPs) to check verification conditions (VCs) stemming from the input program. Isabelle, on the other hand, is an interactive theorem prover used to verify mathematical specifications using its own input language Isabelle/Isar. Users specify (inductive) definitions and write proofs about them manually, albeit with the help of semi-automated tactics. The integration of these two systems"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.01539","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":"2026-05-18T01:11:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SA0WqzdnzGO7Xxp0B9WVfAM6WNzWZflOBvwwXMm+K5hMmcTh004HAQ/Jy51x+tyWaxRm8XSUGdqq5ZgJpI/kBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T23:25:22.808364Z"},"content_sha256":"430402a00d62ec04b138086372e30965963d9966e3e2ffe93917351d85575eb0","schema_version":"1.0","event_id":"sha256:430402a00d62ec04b138086372e30965963d9966e3e2ffe93917351d85575eb0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N66NWJFFQVJ3YE362FHQSQTMUK/bundle.json","state_url":"https://pith.science/pith/N66NWJFFQVJ3YE362FHQSQTMUK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N66NWJFFQVJ3YE362FHQSQTMUK/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":"2026-06-22T23:25:22Z","links":{"resolver":"https://pith.science/pith/N66NWJFFQVJ3YE362FHQSQTMUK","bundle":"https://pith.science/pith/N66NWJFFQVJ3YE362FHQSQTMUK/bundle.json","state":"https://pith.science/pith/N66NWJFFQVJ3YE362FHQSQTMUK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N66NWJFFQVJ3YE362FHQSQTMUK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:N66NWJFFQVJ3YE362FHQSQTMUK","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":"d069c4aca54d130a668a08e17b81f3d55739b80b0cf1eb6a51233be406b397a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-07-06T09:39:33Z","title_canon_sha256":"f396c86fd283ef586a7a416f9397aca92a7eb4befb41b5e181efd59687a66b7b"},"schema_version":"1.0","source":{"id":"1607.01539","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.01539","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"arxiv_version","alias_value":"1607.01539v1","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.01539","created_at":"2026-05-18T01:11:26Z"},{"alias_kind":"pith_short_12","alias_value":"N66NWJFFQVJ3","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_16","alias_value":"N66NWJFFQVJ3YE36","created_at":"2026-05-18T12:30:32Z"},{"alias_kind":"pith_short_8","alias_value":"N66NWJFF","created_at":"2026-05-18T12:30:32Z"}],"graph_snapshots":[{"event_id":"sha256:430402a00d62ec04b138086372e30965963d9966e3e2ffe93917351d85575eb0","target":"graph","created_at":"2026-05-18T01:11:26Z","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 present a trustworthy connection between the Leon verification system and the Isabelle proof assistant. Leon is a system for verifying functional Scala programs. It uses a variety of automated theorem provers (ATPs) to check verification conditions (VCs) stemming from the input program. Isabelle, on the other hand, is an interactive theorem prover used to verify mathematical specifications using its own input language Isabelle/Isar. Users specify (inductive) definitions and write proofs about them manually, albeit with the help of semi-automated tactics. The integration of these two systems","authors_text":"Lars Hupel, Viktor Kuncak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-07-06T09:39:33Z","title":"Translating Scala Programs to Isabelle/HOL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.01539","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":"sha256:466212fd8f714350146a52cc338fa14813501dfcf4e0801e5f85c8d9a551cb70","target":"record","created_at":"2026-05-18T01:11:26Z","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":"d069c4aca54d130a668a08e17b81f3d55739b80b0cf1eb6a51233be406b397a1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2016-07-06T09:39:33Z","title_canon_sha256":"f396c86fd283ef586a7a416f9397aca92a7eb4befb41b5e181efd59687a66b7b"},"schema_version":"1.0","source":{"id":"1607.01539","kind":"arxiv","version":1}},"canonical_sha256":"6fbcdb24a58553bc137ed14f09426ca2890af2019364659d5df096c65f3adcf1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6fbcdb24a58553bc137ed14f09426ca2890af2019364659d5df096c65f3adcf1","first_computed_at":"2026-05-18T01:11:26.179335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:26.179335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PhU4kL9rJO4WAfagj67/r4VJP/3vt3SO9qFGkz8GFgTw6eXFxj/7GFy/FWZOKegiLQemrpJoN8+O/sCLCDWSCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:26.179846Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.01539","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:466212fd8f714350146a52cc338fa14813501dfcf4e0801e5f85c8d9a551cb70","sha256:430402a00d62ec04b138086372e30965963d9966e3e2ffe93917351d85575eb0"],"state_sha256":"564fd37a0a5fc4b41b7d16af06a26cdec41b0d51df7832c77ef2bd2deffb53d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l7pYGDqAoioWTG2NUnSQs2/hzsi+k7fJDXxAHd2BUhL7/6MuSO3Y60dnmx7EjohZWnagnhEW6k89HL0EYbS7Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T23:25:22.810299Z","bundle_sha256":"11c903b87c0f00b943aa684a1a117aa7933f98c0a68841c58c27c698ba5cfcdc"}}