{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BGHKCR3XGI2F3SU733PS6OM3SV","short_pith_number":"pith:BGHKCR3X","canonical_record":{"source":{"id":"1804.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2018-03-27T17:56:08Z","cross_cats_sorted":[],"title_canon_sha256":"7ec020a42898c5a765181e4c025562ad8fb6ccdf44581e661560d657ca3ba8df","abstract_canon_sha256":"e51ce73a8a69b9562516123cf3315b4378a53272757f13ddfc34e9d900e2d66b"},"schema_version":"1.0"},"canonical_sha256":"098ea1477732345dca9fdedf2f399b955f3898376ff18b90ea0ab6b5d15a47e0","source":{"kind":"arxiv","id":"1804.00485","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.00485","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"arxiv_version","alias_value":"1804.00485v1","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00485","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"pith_short_12","alias_value":"BGHKCR3XGI2F","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BGHKCR3XGI2F3SU7","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BGHKCR3X","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BGHKCR3XGI2F3SU733PS6OM3SV","target":"record","payload":{"canonical_record":{"source":{"id":"1804.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2018-03-27T17:56:08Z","cross_cats_sorted":[],"title_canon_sha256":"7ec020a42898c5a765181e4c025562ad8fb6ccdf44581e661560d657ca3ba8df","abstract_canon_sha256":"e51ce73a8a69b9562516123cf3315b4378a53272757f13ddfc34e9d900e2d66b"},"schema_version":"1.0"},"canonical_sha256":"098ea1477732345dca9fdedf2f399b955f3898376ff18b90ea0ab6b5d15a47e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:37.053443Z","signature_b64":"++3TdJBir9SxvMIYLgbF/mBbcuO7VS7IDuRXVdFNuuXGKd7WbgOLZ8PMXXrgd7DqlK4kusXVDMefGwrK0IqwAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"098ea1477732345dca9fdedf2f399b955f3898376ff18b90ea0ab6b5d15a47e0","last_reissued_at":"2026-05-18T00:19:37.052823Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:37.052823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.00485","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":"2026-05-18T00:19:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"md0gyuTdREsm5ISNuc0osEpyZxIml4L1mrlls0fknAQj3ySaxA51Coz8mrSK3WtaDfz9K2dmkzTf+eOcoIpdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T16:05:52.509205Z"},"content_sha256":"f66f9e738997c75e080d5a9b43731cbb21932ffb25e282b4632b809207413ba3","schema_version":"1.0","event_id":"sha256:f66f9e738997c75e080d5a9b43731cbb21932ffb25e282b4632b809207413ba3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BGHKCR3XGI2F3SU733PS6OM3SV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lisp, Jazz, Aikido -- Three Expressions of a Single Essence","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.PL","authors_text":"Development Laboratory (LRDE), Didier Verna (EPITA Research, France)","submitted_at":"2018-03-27T17:56:08Z","abstract_excerpt":"The relation between Science (what we can explain) and Art (what we can't) has long been acknowledged and while every science contains an artistic part, every art form also needs a bit of science. Among all scientific disciplines, programming holds a special place for two reasons. First, the artistic part is not only undeniable but also essential. Second, and much like in a purely artistic discipline, the act of programming is driven partly by the notion of aesthetics: the pleasure we have in creating beautiful things. Even though the importance of aesthetics in the act of programming is now u"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00485","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":"2026-05-18T00:19:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5GrYEoC8pg5Cc5P4ZWgk431bLAz2TWnngqflpNf6DP0tSqR77Mh88lB3GfYoj3sByikWEMd4+5EpoAHQGPlSAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T16:05:52.509933Z"},"content_sha256":"6fd6e1f55a6f74d3ea611c89a2086e240a66047ff27d180051a09ac4082fd87e","schema_version":"1.0","event_id":"sha256:6fd6e1f55a6f74d3ea611c89a2086e240a66047ff27d180051a09ac4082fd87e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BGHKCR3XGI2F3SU733PS6OM3SV/bundle.json","state_url":"https://pith.science/pith/BGHKCR3XGI2F3SU733PS6OM3SV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BGHKCR3XGI2F3SU733PS6OM3SV/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":"2026-06-09T16:05:52Z","links":{"resolver":"https://pith.science/pith/BGHKCR3XGI2F3SU733PS6OM3SV","bundle":"https://pith.science/pith/BGHKCR3XGI2F3SU733PS6OM3SV/bundle.json","state":"https://pith.science/pith/BGHKCR3XGI2F3SU733PS6OM3SV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BGHKCR3XGI2F3SU733PS6OM3SV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BGHKCR3XGI2F3SU733PS6OM3SV","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":"e51ce73a8a69b9562516123cf3315b4378a53272757f13ddfc34e9d900e2d66b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2018-03-27T17:56:08Z","title_canon_sha256":"7ec020a42898c5a765181e4c025562ad8fb6ccdf44581e661560d657ca3ba8df"},"schema_version":"1.0","source":{"id":"1804.00485","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.00485","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"arxiv_version","alias_value":"1804.00485v1","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00485","created_at":"2026-05-18T00:19:37Z"},{"alias_kind":"pith_short_12","alias_value":"BGHKCR3XGI2F","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BGHKCR3XGI2F3SU7","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BGHKCR3X","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:6fd6e1f55a6f74d3ea611c89a2086e240a66047ff27d180051a09ac4082fd87e","target":"graph","created_at":"2026-05-18T00:19:37Z","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":"The relation between Science (what we can explain) and Art (what we can't) has long been acknowledged and while every science contains an artistic part, every art form also needs a bit of science. Among all scientific disciplines, programming holds a special place for two reasons. First, the artistic part is not only undeniable but also essential. Second, and much like in a purely artistic discipline, the act of programming is driven partly by the notion of aesthetics: the pleasure we have in creating beautiful things. Even though the importance of aesthetics in the act of programming is now u","authors_text":"Development Laboratory (LRDE), Didier Verna (EPITA Research, France)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2018-03-27T17:56:08Z","title":"Lisp, Jazz, Aikido -- Three Expressions of a Single Essence"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00485","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:f66f9e738997c75e080d5a9b43731cbb21932ffb25e282b4632b809207413ba3","target":"record","created_at":"2026-05-18T00:19:37Z","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":"e51ce73a8a69b9562516123cf3315b4378a53272757f13ddfc34e9d900e2d66b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.PL","submitted_at":"2018-03-27T17:56:08Z","title_canon_sha256":"7ec020a42898c5a765181e4c025562ad8fb6ccdf44581e661560d657ca3ba8df"},"schema_version":"1.0","source":{"id":"1804.00485","kind":"arxiv","version":1}},"canonical_sha256":"098ea1477732345dca9fdedf2f399b955f3898376ff18b90ea0ab6b5d15a47e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"098ea1477732345dca9fdedf2f399b955f3898376ff18b90ea0ab6b5d15a47e0","first_computed_at":"2026-05-18T00:19:37.052823Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:37.052823Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"++3TdJBir9SxvMIYLgbF/mBbcuO7VS7IDuRXVdFNuuXGKd7WbgOLZ8PMXXrgd7DqlK4kusXVDMefGwrK0IqwAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:37.053443Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.00485","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f66f9e738997c75e080d5a9b43731cbb21932ffb25e282b4632b809207413ba3","sha256:6fd6e1f55a6f74d3ea611c89a2086e240a66047ff27d180051a09ac4082fd87e"],"state_sha256":"7cd3689764a47fed617ea3c7fcb08079f22c88946b521442447b97cec30a060d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y2hPJteaq8V8Q+oMZZ7U4IO6C/fdBQB/Gol1U3INZCPexg1A8Na9QMFWM1Alazyh3qyVCJB+Mtr4DmmFjmE9AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T16:05:52.514347Z","bundle_sha256":"d74f499060eede93845c488dd5ae3a6182f436de52ededa543f3ffe384690731"}}