{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YQT3SSOWAY74HWBVSAB347XHFW","short_pith_number":"pith:YQT3SSOW","canonical_record":{"source":{"id":"1506.08789","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-06-29T19:21:04Z","cross_cats_sorted":["cs.CL","cs.IR"],"title_canon_sha256":"9f49baa98ef19d9791e8dd2c5112f0950fa0a17c5ef98ec5f3048f7b6dea8af6","abstract_canon_sha256":"4874d3dfb4ea67c3463cd3095e3eba3f6d9a05343124ab7ae312933e8f3f3f1a"},"schema_version":"1.0"},"canonical_sha256":"c427b949d6063fc3d8359003be7ee72d9a0253983cc1661193143a12965b37c6","source":{"kind":"arxiv","id":"1506.08789","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08789","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08789v1","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08789","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"YQT3SSOWAY74","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YQT3SSOWAY74HWBV","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YQT3SSOW","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YQT3SSOWAY74HWBVSAB347XHFW","target":"record","payload":{"canonical_record":{"source":{"id":"1506.08789","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-06-29T19:21:04Z","cross_cats_sorted":["cs.CL","cs.IR"],"title_canon_sha256":"9f49baa98ef19d9791e8dd2c5112f0950fa0a17c5ef98ec5f3048f7b6dea8af6","abstract_canon_sha256":"4874d3dfb4ea67c3463cd3095e3eba3f6d9a05343124ab7ae312933e8f3f3f1a"},"schema_version":"1.0"},"canonical_sha256":"c427b949d6063fc3d8359003be7ee72d9a0253983cc1661193143a12965b37c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:43.433439Z","signature_b64":"cHFM3HkXOtNsACdxNlsFRw8KhQTaFRjorNRb8p39/AzXu/6/sMUAB5KuQQEbx0isfsmX3P6Yi51jNhgIEBN3AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c427b949d6063fc3d8359003be7ee72d9a0253983cc1661193143a12965b37c6","last_reissued_at":"2026-05-18T01:37:43.432938Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:43.432938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1506.08789","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":"2026-05-18T01:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"81G1xJAHgZinYIjNThhD/sefX3DF87LaOeoTlEHSgo/A7od6Es+N4vU0M7VNWiQaaDRYXcZp5vuhlM2M8UtDCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:41:34.519933Z"},"content_sha256":"84360373406d762a31b6f0db4b2813aafc66b241ee00cff50dc0a828ac8cdf19","schema_version":"1.0","event_id":"sha256:84360373406d762a31b6f0db4b2813aafc66b241ee00cff50dc0a828ac8cdf19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YQT3SSOWAY74HWBVSAB347XHFW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Requirement Tracing using Term Extraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL","cs.IR"],"primary_cat":"cs.SE","authors_text":"Najla Al-Saati, Raghda Abdul-Jaleel","submitted_at":"2015-06-29T19:21:04Z","abstract_excerpt":"Requirements traceability is an essential step in ensuring the quality of software during the early stages of its development life cycle. Requirements tracing usually consists of document parsing, candidate link generation and evaluation and traceability analysis. This paper demonstrates the applicability of Statistical Term Extraction metrics to generate candidate links. It is applied and validated using two data sets and four types of filters two for each data set, 0.2 and 0.25 for MODIS, 0 and 0.05 for CM1. This method generates requirements traceability matrices between textual requirement"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08789","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":"2026-05-18T01:37:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4n7V/inq1B/t8KurGGhS8QsWqwDPo2MiaBVeoxn+vlU4qhtDRlTozP/Lc5RIHdvFPosiziQ1EcuPO3m1QEE4DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T07:41:34.520395Z"},"content_sha256":"0ac70eb936fae9e1b7ef6976a3885b9c51d33f91519363f8c132ff4ce3d4125a","schema_version":"1.0","event_id":"sha256:0ac70eb936fae9e1b7ef6976a3885b9c51d33f91519363f8c132ff4ce3d4125a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQT3SSOWAY74HWBVSAB347XHFW/bundle.json","state_url":"https://pith.science/pith/YQT3SSOWAY74HWBVSAB347XHFW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQT3SSOWAY74HWBVSAB347XHFW/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":"2026-08-09T07:41:34Z","links":{"resolver":"https://pith.science/pith/YQT3SSOWAY74HWBVSAB347XHFW","bundle":"https://pith.science/pith/YQT3SSOWAY74HWBVSAB347XHFW/bundle.json","state":"https://pith.science/pith/YQT3SSOWAY74HWBVSAB347XHFW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQT3SSOWAY74HWBVSAB347XHFW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YQT3SSOWAY74HWBVSAB347XHFW","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":"4874d3dfb4ea67c3463cd3095e3eba3f6d9a05343124ab7ae312933e8f3f3f1a","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-06-29T19:21:04Z","title_canon_sha256":"9f49baa98ef19d9791e8dd2c5112f0950fa0a17c5ef98ec5f3048f7b6dea8af6"},"schema_version":"1.0","source":{"id":"1506.08789","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1506.08789","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"arxiv_version","alias_value":"1506.08789v1","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.08789","created_at":"2026-05-18T01:37:43Z"},{"alias_kind":"pith_short_12","alias_value":"YQT3SSOWAY74","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"YQT3SSOWAY74HWBV","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"YQT3SSOW","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:0ac70eb936fae9e1b7ef6976a3885b9c51d33f91519363f8c132ff4ce3d4125a","target":"graph","created_at":"2026-05-18T01:37:43Z","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":"Requirements traceability is an essential step in ensuring the quality of software during the early stages of its development life cycle. Requirements tracing usually consists of document parsing, candidate link generation and evaluation and traceability analysis. This paper demonstrates the applicability of Statistical Term Extraction metrics to generate candidate links. It is applied and validated using two data sets and four types of filters two for each data set, 0.2 and 0.25 for MODIS, 0 and 0.05 for CM1. This method generates requirements traceability matrices between textual requirement","authors_text":"Najla Al-Saati, Raghda Abdul-Jaleel","cross_cats":["cs.CL","cs.IR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-06-29T19:21:04Z","title":"Requirement Tracing using Term Extraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.08789","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":"sha256:84360373406d762a31b6f0db4b2813aafc66b241ee00cff50dc0a828ac8cdf19","target":"record","created_at":"2026-05-18T01:37:43Z","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":"4874d3dfb4ea67c3463cd3095e3eba3f6d9a05343124ab7ae312933e8f3f3f1a","cross_cats_sorted":["cs.CL","cs.IR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-06-29T19:21:04Z","title_canon_sha256":"9f49baa98ef19d9791e8dd2c5112f0950fa0a17c5ef98ec5f3048f7b6dea8af6"},"schema_version":"1.0","source":{"id":"1506.08789","kind":"arxiv","version":1}},"canonical_sha256":"c427b949d6063fc3d8359003be7ee72d9a0253983cc1661193143a12965b37c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c427b949d6063fc3d8359003be7ee72d9a0253983cc1661193143a12965b37c6","first_computed_at":"2026-05-18T01:37:43.432938Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:43.432938Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cHFM3HkXOtNsACdxNlsFRw8KhQTaFRjorNRb8p39/AzXu/6/sMUAB5KuQQEbx0isfsmX3P6Yi51jNhgIEBN3AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:43.433439Z","signed_message":"canonical_sha256_bytes"},"source_id":"1506.08789","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84360373406d762a31b6f0db4b2813aafc66b241ee00cff50dc0a828ac8cdf19","sha256:0ac70eb936fae9e1b7ef6976a3885b9c51d33f91519363f8c132ff4ce3d4125a"],"state_sha256":"b6fd7dbe52e576b841ef98e3ab79a7077b87f2c346ed5ba81b15359da1869e17"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zj/u566HqWVrvYh8KCvIb/83qExSyRjMftLcZrd0ZKbDXZeH8jE/CkrFGgxZNVcxYcffxiPAiK1kk7q2hVFiAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T07:41:34.523630Z","bundle_sha256":"e2c8475c3857f63e3be5e5e646daaba4dd8c89d848b07ec15325400243cd93c7"}}