{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JQUBWDVSUPTTXDCENEFRX2S2FN","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":"4d16167fc0fc958ed98a75e1ee7f74ba94785fa1b33ce38c2465b19c407cbe71","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-07-26T13:15:16Z","title_canon_sha256":"a64cc4fe3343b83f18450c1ff2241954f6ba00ea4cc8f610bd27bc26e489418f"},"schema_version":"1.0","source":{"id":"1807.10106","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10106","created_at":"2026-05-18T00:09:45Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10106v1","created_at":"2026-05-18T00:09:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10106","created_at":"2026-05-18T00:09:45Z"},{"alias_kind":"pith_short_12","alias_value":"JQUBWDVSUPTT","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"JQUBWDVSUPTTXDCE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"JQUBWDVS","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:ae5c8207e298eaf7f976f765522034be30f8082d15cfdc7f8eec3927bdd23422","target":"graph","created_at":"2026-05-18T00:09:45Z","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":"As program comprehension is a vast research area, it is necessary to get an overview of its rising and falling trends. We performed an n-gram frequency analysis on titles, abstracts and keywords of 1885 articles about program comprehension from the years 2000-2014. According to this analysis, the most rising trends are feature location and open source systems, the most falling ones are program slicing and legacy systems.","authors_text":"Jaroslav Porub\\\"an, Mat\\'u\\v{s} Sul\\'ir","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-07-26T13:15:16Z","title":"Trend Analysis on the Metadata of Program Comprehension Papers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10106","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":"sha256:159ed65768629698323370f3e1d770ca32d6ebd6860b556ae32ec502282d984f","target":"record","created_at":"2026-05-18T00:09:45Z","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":"4d16167fc0fc958ed98a75e1ee7f74ba94785fa1b33ce38c2465b19c407cbe71","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2018-07-26T13:15:16Z","title_canon_sha256":"a64cc4fe3343b83f18450c1ff2241954f6ba00ea4cc8f610bd27bc26e489418f"},"schema_version":"1.0","source":{"id":"1807.10106","kind":"arxiv","version":1}},"canonical_sha256":"4c281b0eb2a3e73b8c44690b1bea5a2b51b2bef36841ab2edbbc4b139a777ac3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4c281b0eb2a3e73b8c44690b1bea5a2b51b2bef36841ab2edbbc4b139a777ac3","first_computed_at":"2026-05-18T00:09:45.385564Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:45.385564Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YIKsIHIVBXNxPvgzCzcKBHtXTMBLs5ZFYJkRsy7NCFxrgtNxRYEBSuA9k3OUygaj5C8WEJ2cDmcFUeEoF1VbDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:45.386266Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.10106","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:159ed65768629698323370f3e1d770ca32d6ebd6860b556ae32ec502282d984f","sha256:ae5c8207e298eaf7f976f765522034be30f8082d15cfdc7f8eec3927bdd23422"],"state_sha256":"0a53de43c7cb01fe81dbe70df7928e4226411aed87c10e7194c38f75b3f122f3"}