{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UVCF2Y6J4P4F43UVV7YGFSF6LY","short_pith_number":"pith:UVCF2Y6J","canonical_record":{"source":{"id":"1509.02293","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-09-08T09:25:18Z","cross_cats_sorted":[],"title_canon_sha256":"90e4917d1862868843f6594e83c1ad2ef3c0757dab8e02a6c7ce56b5aa9c69fc","abstract_canon_sha256":"bce7d5d5542cfd5e7819cc549d408795d9881c8391888a4945314d8a16b56561"},"schema_version":"1.0"},"canonical_sha256":"a5445d63c9e3f85e6e95aff062c8be5e3f8e874686cf352169afad834a6d31be","source":{"kind":"arxiv","id":"1509.02293","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.02293","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"arxiv_version","alias_value":"1509.02293v1","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.02293","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"pith_short_12","alias_value":"UVCF2Y6J4P4F","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UVCF2Y6J4P4F43UV","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UVCF2Y6J","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UVCF2Y6J4P4F43UVV7YGFSF6LY","target":"record","payload":{"canonical_record":{"source":{"id":"1509.02293","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-09-08T09:25:18Z","cross_cats_sorted":[],"title_canon_sha256":"90e4917d1862868843f6594e83c1ad2ef3c0757dab8e02a6c7ce56b5aa9c69fc","abstract_canon_sha256":"bce7d5d5542cfd5e7819cc549d408795d9881c8391888a4945314d8a16b56561"},"schema_version":"1.0"},"canonical_sha256":"a5445d63c9e3f85e6e95aff062c8be5e3f8e874686cf352169afad834a6d31be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:33:41.296532Z","signature_b64":"JknimzjDc0pTWMUQRyHGxSTItCH9GV5f8P315cmPzdvyCLJgcT3iAcI+IsW4qVpwhLadXqKjZQEgEinrHHdeDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a5445d63c9e3f85e6e95aff062c8be5e3f8e874686cf352169afad834a6d31be","last_reissued_at":"2026-05-18T01:33:41.296036Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:33:41.296036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.02293","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":"2026-05-18T01:33:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ov3pUjHhqTzTgBUfKwQN6nZ+d2VyNjjoZAWwuzeBHsLH8SU2XiSKIQpD0rqTTpmmKhrlH+nhsFgl5P2aEPMfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:30:17.191156Z"},"content_sha256":"3aeba1337750b04ccc874986824054de94c299e2475de2f0e1039fb1e6bcc493","schema_version":"1.0","event_id":"sha256:3aeba1337750b04ccc874986824054de94c299e2475de2f0e1039fb1e6bcc493"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UVCF2Y6J4P4F43UVV7YGFSF6LY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using Software Categories for the Development of Generative Software","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Bernhard Rumpe, Pedram Mir Seyed Nazari","submitted_at":"2015-09-08T09:25:18Z","abstract_excerpt":"In model-driven development (MDD) software emerges by systematically transforming abstract models to concrete source code. Ideally, performing those transformations is to a large extent the task of code generators. One approach for developing a new code generator is to write a reference implementation and separate it into handwritten and generatable code. Typically, the generator developer manually performs this separation a process that is often time-consuming, labor-intensive, difficult to maintain and may produce more code than necessary. Software categories provide a way for separating cod"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02293","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":"2026-05-18T01:33:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R1klhV2b/b9WTZ8C6XW+7391qZzsTOQkYKNdrMD6yP7VUPv9VNRRQFUeY23407EwZtk/y85Zab1opNArSm3eCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T23:30:17.191513Z"},"content_sha256":"a05d7ef28c42dbcf7b20ef85c1f1571bf5413060ffa52c2c5c4796f5cf6e0b48","schema_version":"1.0","event_id":"sha256:a05d7ef28c42dbcf7b20ef85c1f1571bf5413060ffa52c2c5c4796f5cf6e0b48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/bundle.json","state_url":"https://pith.science/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/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":"2026-06-08T23:30:17Z","links":{"resolver":"https://pith.science/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY","bundle":"https://pith.science/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/bundle.json","state":"https://pith.science/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UVCF2Y6J4P4F43UVV7YGFSF6LY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UVCF2Y6J4P4F43UVV7YGFSF6LY","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":"bce7d5d5542cfd5e7819cc549d408795d9881c8391888a4945314d8a16b56561","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-09-08T09:25:18Z","title_canon_sha256":"90e4917d1862868843f6594e83c1ad2ef3c0757dab8e02a6c7ce56b5aa9c69fc"},"schema_version":"1.0","source":{"id":"1509.02293","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.02293","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"arxiv_version","alias_value":"1509.02293v1","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.02293","created_at":"2026-05-18T01:33:41Z"},{"alias_kind":"pith_short_12","alias_value":"UVCF2Y6J4P4F","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UVCF2Y6J4P4F43UV","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UVCF2Y6J","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:a05d7ef28c42dbcf7b20ef85c1f1571bf5413060ffa52c2c5c4796f5cf6e0b48","target":"graph","created_at":"2026-05-18T01:33:41Z","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 model-driven development (MDD) software emerges by systematically transforming abstract models to concrete source code. Ideally, performing those transformations is to a large extent the task of code generators. One approach for developing a new code generator is to write a reference implementation and separate it into handwritten and generatable code. Typically, the generator developer manually performs this separation a process that is often time-consuming, labor-intensive, difficult to maintain and may produce more code than necessary. Software categories provide a way for separating cod","authors_text":"Bernhard Rumpe, Pedram Mir Seyed Nazari","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-09-08T09:25:18Z","title":"Using Software Categories for the Development of Generative Software"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02293","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":"sha256:3aeba1337750b04ccc874986824054de94c299e2475de2f0e1039fb1e6bcc493","target":"record","created_at":"2026-05-18T01:33:41Z","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":"bce7d5d5542cfd5e7819cc549d408795d9881c8391888a4945314d8a16b56561","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-09-08T09:25:18Z","title_canon_sha256":"90e4917d1862868843f6594e83c1ad2ef3c0757dab8e02a6c7ce56b5aa9c69fc"},"schema_version":"1.0","source":{"id":"1509.02293","kind":"arxiv","version":1}},"canonical_sha256":"a5445d63c9e3f85e6e95aff062c8be5e3f8e874686cf352169afad834a6d31be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5445d63c9e3f85e6e95aff062c8be5e3f8e874686cf352169afad834a6d31be","first_computed_at":"2026-05-18T01:33:41.296036Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:41.296036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JknimzjDc0pTWMUQRyHGxSTItCH9GV5f8P315cmPzdvyCLJgcT3iAcI+IsW4qVpwhLadXqKjZQEgEinrHHdeDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:41.296532Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.02293","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3aeba1337750b04ccc874986824054de94c299e2475de2f0e1039fb1e6bcc493","sha256:a05d7ef28c42dbcf7b20ef85c1f1571bf5413060ffa52c2c5c4796f5cf6e0b48"],"state_sha256":"3bca098f14baf27ab497c98fe01458af3ffbfb6b5639b6de2c657789e5b2630d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJCz+ShXJH7wNHUO45FbRGL6iJPd7UhZVFYgN9VcREqCt/0dd3+nn4DZSGagsJR0ZdHrUMectduVO60cX5cTCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T23:30:17.193554Z","bundle_sha256":"347b10e784df78afacbfb60e48254e931ecdbf286598471233d5fa2b2d50df45"}}