{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:XK6D35RYDU4HOUCJVBC5HXTFPZ","short_pith_number":"pith:XK6D35RY","canonical_record":{"source":{"id":"2308.15893","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2023-08-30T09:07:05Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"617c202b66dae78fcf137027655f8ed9ee8f35efad1f187674bec652e40d8b61","abstract_canon_sha256":"3946a7a2deff425c1022617920b71af97c77e3202d7400c4c6400e261822c41b"},"schema_version":"1.0"},"canonical_sha256":"babc3df6381d38775049a845d3de657e468a879a1a0f39172bad9cd49518bdf4","source":{"kind":"arxiv","id":"2308.15893","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.15893","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"arxiv_version","alias_value":"2308.15893v1","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.15893","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_12","alias_value":"XK6D35RYDU4H","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_16","alias_value":"XK6D35RYDU4HOUCJ","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_8","alias_value":"XK6D35RY","created_at":"2026-07-05T06:46:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:XK6D35RYDU4HOUCJVBC5HXTFPZ","target":"record","payload":{"canonical_record":{"source":{"id":"2308.15893","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2023-08-30T09:07:05Z","cross_cats_sorted":["cs.LO"],"title_canon_sha256":"617c202b66dae78fcf137027655f8ed9ee8f35efad1f187674bec652e40d8b61","abstract_canon_sha256":"3946a7a2deff425c1022617920b71af97c77e3202d7400c4c6400e261822c41b"},"schema_version":"1.0"},"canonical_sha256":"babc3df6381d38775049a845d3de657e468a879a1a0f39172bad9cd49518bdf4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:46:14.897018Z","signature_b64":"LbYGI1KtQZQ2eNExwe6ySYFLo0aOLi6UIT2siqkQezHF023QF0G2wWn7bjZyd4UOJsBNvG4P3+FimVzA67g+AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"babc3df6381d38775049a845d3de657e468a879a1a0f39172bad9cd49518bdf4","last_reissued_at":"2026-07-05T06:46:14.896525Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:46:14.896525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2308.15893","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":"2026-07-05T06:46:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TIx+/mYMxVu7ZmRTOed2oiFyQfO6u5y7YnDzmiyWhDt0tKaTopXNPANHUd8/bKIS+SFdVQChVH7QhM7IZDXTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:34:41.868091Z"},"content_sha256":"23193ad6d9a1f8af4d167217ed4814a91eebac730ad7cf7c2ed139aa30b70692","schema_version":"1.0","event_id":"sha256:23193ad6d9a1f8af4d167217ed4814a91eebac730ad7cf7c2ed139aa30b70692"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:XK6D35RYDU4HOUCJVBC5HXTFPZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Janus System: Multi-paradigm Programming in Prolog and Python","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.LO"],"primary_cat":"cs.PL","authors_text":"Carl Andersen, Theresa Swift (Johns Hopkins Applied Physics Lab)","submitted_at":"2023-08-30T09:07:05Z","abstract_excerpt":"Python and Prolog express different programming paradigms, with different strengths.  Python is wildly popular because it is well-structured, easy to use, and mixes well with thousands of scientific and machine learning programs written in C.  Prolog's logic-based approach provides powerful reasoning capabilities, especially when combined with constraint evaluation, probabilistic reasoning, well-founded negation, and other advances. Both languages have commonalities as well: both are usually written in C, both are dynamically typed, and both use data structures based on a small number of recur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.15893","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/2308.15893/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":"2026-07-05T06:46:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"87DyEEmO0NBSryGR/ZWtZyCqfF6XLEaXjnc6SF0JI4EiQMz3f5ocndSOlJ+tg75eG1AQZ61h2LkUrKkvoeThCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T19:34:41.868488Z"},"content_sha256":"1fcd8a12005326ef273e6a487052b788166a38e8e713b292c1b06d0f9d4c5297","schema_version":"1.0","event_id":"sha256:1fcd8a12005326ef273e6a487052b788166a38e8e713b292c1b06d0f9d4c5297"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/bundle.json","state_url":"https://pith.science/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/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":"2026-07-06T19:34:41Z","links":{"resolver":"https://pith.science/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ","bundle":"https://pith.science/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/bundle.json","state":"https://pith.science/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XK6D35RYDU4HOUCJVBC5HXTFPZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:XK6D35RYDU4HOUCJVBC5HXTFPZ","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":"3946a7a2deff425c1022617920b71af97c77e3202d7400c4c6400e261822c41b","cross_cats_sorted":["cs.LO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2023-08-30T09:07:05Z","title_canon_sha256":"617c202b66dae78fcf137027655f8ed9ee8f35efad1f187674bec652e40d8b61"},"schema_version":"1.0","source":{"id":"2308.15893","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2308.15893","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"arxiv_version","alias_value":"2308.15893v1","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.15893","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_12","alias_value":"XK6D35RYDU4H","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_16","alias_value":"XK6D35RYDU4HOUCJ","created_at":"2026-07-05T06:46:14Z"},{"alias_kind":"pith_short_8","alias_value":"XK6D35RY","created_at":"2026-07-05T06:46:14Z"}],"graph_snapshots":[{"event_id":"sha256:1fcd8a12005326ef273e6a487052b788166a38e8e713b292c1b06d0f9d4c5297","target":"graph","created_at":"2026-07-05T06:46:14Z","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/2308.15893/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Python and Prolog express different programming paradigms, with different strengths.  Python is wildly popular because it is well-structured, easy to use, and mixes well with thousands of scientific and machine learning programs written in C.  Prolog's logic-based approach provides powerful reasoning capabilities, especially when combined with constraint evaluation, probabilistic reasoning, well-founded negation, and other advances. Both languages have commonalities as well: both are usually written in C, both are dynamically typed, and both use data structures based on a small number of recur","authors_text":"Carl Andersen, Theresa Swift (Johns Hopkins Applied Physics Lab)","cross_cats":["cs.LO"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2023-08-30T09:07:05Z","title":"The Janus System: Multi-paradigm Programming in Prolog and Python"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.15893","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":"sha256:23193ad6d9a1f8af4d167217ed4814a91eebac730ad7cf7c2ed139aa30b70692","target":"record","created_at":"2026-07-05T06:46:14Z","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":"3946a7a2deff425c1022617920b71af97c77e3202d7400c4c6400e261822c41b","cross_cats_sorted":["cs.LO"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.PL","submitted_at":"2023-08-30T09:07:05Z","title_canon_sha256":"617c202b66dae78fcf137027655f8ed9ee8f35efad1f187674bec652e40d8b61"},"schema_version":"1.0","source":{"id":"2308.15893","kind":"arxiv","version":1}},"canonical_sha256":"babc3df6381d38775049a845d3de657e468a879a1a0f39172bad9cd49518bdf4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"babc3df6381d38775049a845d3de657e468a879a1a0f39172bad9cd49518bdf4","first_computed_at":"2026-07-05T06:46:14.896525Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:46:14.896525Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LbYGI1KtQZQ2eNExwe6ySYFLo0aOLi6UIT2siqkQezHF023QF0G2wWn7bjZyd4UOJsBNvG4P3+FimVzA67g+AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:46:14.897018Z","signed_message":"canonical_sha256_bytes"},"source_id":"2308.15893","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23193ad6d9a1f8af4d167217ed4814a91eebac730ad7cf7c2ed139aa30b70692","sha256:1fcd8a12005326ef273e6a487052b788166a38e8e713b292c1b06d0f9d4c5297"],"state_sha256":"60e2116ba6fcdfe1891b80051efcea5550a631143cc96a5e2576eb9e1d9b7946"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"giOk3PpEiNn/63pKRJ3N/a8lwuRRB3RXbfyovfCZXyCh20mt8r1ob77Wl6W3K47l7C6NB4Ww2maLqeh6WldKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T19:34:41.870573Z","bundle_sha256":"758138ec551907196fcfb03f560ba141e95fc2b82adaa53eb9436c8792285200"}}