{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JJ3DZW7ZTPZKVXH7UY3NVUVLO4","short_pith_number":"pith:JJ3DZW7Z","canonical_record":{"source":{"id":"1511.08827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-11-27T21:43:39Z","cross_cats_sorted":[],"title_canon_sha256":"f4fba66033fad6e4a3579e354658a6b49f74ba8a2d36e1e63b3dfc4492952e1e","abstract_canon_sha256":"8700143e8a73d4c77e57d7eaff1919bdddba21af3c9cf2b42ae2afae5841c0f1"},"schema_version":"1.0"},"canonical_sha256":"4a763cdbf99bf2aadcffa636dad2ab77089e39c68ec880266183967f2125bf20","source":{"kind":"arxiv","id":"1511.08827","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.08827","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"1511.08827v1","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.08827","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"JJ3DZW7ZTPZK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JJ3DZW7ZTPZKVXH7","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JJ3DZW7Z","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JJ3DZW7ZTPZKVXH7UY3NVUVLO4","target":"record","payload":{"canonical_record":{"source":{"id":"1511.08827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-11-27T21:43:39Z","cross_cats_sorted":[],"title_canon_sha256":"f4fba66033fad6e4a3579e354658a6b49f74ba8a2d36e1e63b3dfc4492952e1e","abstract_canon_sha256":"8700143e8a73d4c77e57d7eaff1919bdddba21af3c9cf2b42ae2afae5841c0f1"},"schema_version":"1.0"},"canonical_sha256":"4a763cdbf99bf2aadcffa636dad2ab77089e39c68ec880266183967f2125bf20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:46.325570Z","signature_b64":"3aTsAaRRmrJPCaHYRjc12SFI/0PliIOsvTqwaHSaScDoJjSiq/gvFetEyigg2QmL+WjIUVjSbFku8nF/7U51Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a763cdbf99bf2aadcffa636dad2ab77089e39c68ec880266183967f2125bf20","last_reissued_at":"2026-05-18T01:25:46.325132Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:46.325132Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.08827","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":"2026-05-18T01:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OSAiWauv4cB6sarJ9CQQIR9OaYfvcA4krSOliFk4QH8MMDZ97NbXT8BNcv0QJhwI5W6qNN/vhp0IHihEez87Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:36:06.997063Z"},"content_sha256":"9d9531e4f05a0fca9f63a0079a5e9c45ec3f7b8d9024f1fa4cedc36981c8375f","schema_version":"1.0","event_id":"sha256:9d9531e4f05a0fca9f63a0079a5e9c45ec3f7b8d9024f1fa4cedc36981c8375f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JJ3DZW7ZTPZKVXH7UY3NVUVLO4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maintenance Support in Open Source Software Projects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Arif Raza, Faheem Ahmed, Luiz Fernando Capretz","submitted_at":"2015-11-27T21:43:39Z","abstract_excerpt":"Easy and mostly free access to the internet has resulted in the growing use of open source software (OSS). However, it is a common perception that closed proprietary software is still superior in areas such as software maintenance and management. The research model of this study establishes a relationship between maintenance issues (such as user requests and error handling) and support provided by open source software through project forums, mailing lists and trackers. To conduct this research, we have used a dataset consisting of 120 open source software projects, covering a wide range of cat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.08827","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":"2026-05-18T01:25:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/aGje4HDG9zSSPyxJFqaZg7UrV4YCuwQ7I7hdsKPA5aJ87/LIpUZzMpF6xjQKeL1VOp+aqPL5vVIYVx9mX/jDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T11:36:06.997838Z"},"content_sha256":"87ea3164e84508a6ad85a2bada6f413129a1ca8f49695eae638f47f6bc312128","schema_version":"1.0","event_id":"sha256:87ea3164e84508a6ad85a2bada6f413129a1ca8f49695eae638f47f6bc312128"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/bundle.json","state_url":"https://pith.science/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/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":"2026-05-31T11:36:07Z","links":{"resolver":"https://pith.science/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4","bundle":"https://pith.science/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/bundle.json","state":"https://pith.science/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JJ3DZW7ZTPZKVXH7UY3NVUVLO4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JJ3DZW7ZTPZKVXH7UY3NVUVLO4","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":"8700143e8a73d4c77e57d7eaff1919bdddba21af3c9cf2b42ae2afae5841c0f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-11-27T21:43:39Z","title_canon_sha256":"f4fba66033fad6e4a3579e354658a6b49f74ba8a2d36e1e63b3dfc4492952e1e"},"schema_version":"1.0","source":{"id":"1511.08827","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.08827","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"arxiv_version","alias_value":"1511.08827v1","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.08827","created_at":"2026-05-18T01:25:46Z"},{"alias_kind":"pith_short_12","alias_value":"JJ3DZW7ZTPZK","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JJ3DZW7ZTPZKVXH7","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JJ3DZW7Z","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:87ea3164e84508a6ad85a2bada6f413129a1ca8f49695eae638f47f6bc312128","target":"graph","created_at":"2026-05-18T01:25:46Z","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":"Easy and mostly free access to the internet has resulted in the growing use of open source software (OSS). However, it is a common perception that closed proprietary software is still superior in areas such as software maintenance and management. The research model of this study establishes a relationship between maintenance issues (such as user requests and error handling) and support provided by open source software through project forums, mailing lists and trackers. To conduct this research, we have used a dataset consisting of 120 open source software projects, covering a wide range of cat","authors_text":"Arif Raza, Faheem Ahmed, Luiz Fernando Capretz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-11-27T21:43:39Z","title":"Maintenance Support in Open Source Software Projects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.08827","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":"sha256:9d9531e4f05a0fca9f63a0079a5e9c45ec3f7b8d9024f1fa4cedc36981c8375f","target":"record","created_at":"2026-05-18T01:25:46Z","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":"8700143e8a73d4c77e57d7eaff1919bdddba21af3c9cf2b42ae2afae5841c0f1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2015-11-27T21:43:39Z","title_canon_sha256":"f4fba66033fad6e4a3579e354658a6b49f74ba8a2d36e1e63b3dfc4492952e1e"},"schema_version":"1.0","source":{"id":"1511.08827","kind":"arxiv","version":1}},"canonical_sha256":"4a763cdbf99bf2aadcffa636dad2ab77089e39c68ec880266183967f2125bf20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4a763cdbf99bf2aadcffa636dad2ab77089e39c68ec880266183967f2125bf20","first_computed_at":"2026-05-18T01:25:46.325132Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:46.325132Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3aTsAaRRmrJPCaHYRjc12SFI/0PliIOsvTqwaHSaScDoJjSiq/gvFetEyigg2QmL+WjIUVjSbFku8nF/7U51Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:46.325570Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.08827","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d9531e4f05a0fca9f63a0079a5e9c45ec3f7b8d9024f1fa4cedc36981c8375f","sha256:87ea3164e84508a6ad85a2bada6f413129a1ca8f49695eae638f47f6bc312128"],"state_sha256":"600b2a86ca0a6dcff696821940100c084f131c2068bd733330d1f70dd086bfec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uRu+8JZ1ExqK03XyXh+gWiLXZZB1zsOFzCvzL91Hl5EoasUNXa+WpW5dUhk549OX+9XHJ90Jp0Qeh3k121DaCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T11:36:07.002573Z","bundle_sha256":"e1b0425d70f355cd0b62f5901ba85edde0bf36bbc9bb134421b52015ccd23276"}}