{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:CQKULCIMTB57DUACDKI64BOO4X","short_pith_number":"pith:CQKULCIM","canonical_record":{"source":{"id":"2108.09417","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2021-08-21T01:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"7419d294296536954cbdacae6b45039ad9b1cfe880c5c0362492b639b17c947f","abstract_canon_sha256":"b6989e4c8617c406594dba1907732f77a7abf2854e55e15b38e5c893a279fad9"},"schema_version":"1.0"},"canonical_sha256":"141545890c987bf1d0021a91ee05cee5dbf47abd1776de564f05999a88e33f97","source":{"kind":"arxiv","id":"2108.09417","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.09417","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"arxiv_version","alias_value":"2108.09417v1","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.09417","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_12","alias_value":"CQKULCIMTB57","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_16","alias_value":"CQKULCIMTB57DUAC","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_8","alias_value":"CQKULCIM","created_at":"2026-07-05T03:09:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:CQKULCIMTB57DUACDKI64BOO4X","target":"record","payload":{"canonical_record":{"source":{"id":"2108.09417","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2021-08-21T01:32:46Z","cross_cats_sorted":[],"title_canon_sha256":"7419d294296536954cbdacae6b45039ad9b1cfe880c5c0362492b639b17c947f","abstract_canon_sha256":"b6989e4c8617c406594dba1907732f77a7abf2854e55e15b38e5c893a279fad9"},"schema_version":"1.0"},"canonical_sha256":"141545890c987bf1d0021a91ee05cee5dbf47abd1776de564f05999a88e33f97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:09:19.601848Z","signature_b64":"pGHFQLz0leAV5JF9LXkfBMSIkmz49ANg82+pVeNb3IDHLbwl2Vps/ZURLq9IULVoO4wPt+XVy+Qz9evV96fcAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"141545890c987bf1d0021a91ee05cee5dbf47abd1776de564f05999a88e33f97","last_reissued_at":"2026-07-05T03:09:19.601420Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:09:19.601420Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2108.09417","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":"2026-07-05T03:09:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"spV5Fl1rxq2h4dG8aFWjvWEtQIMQnRFwhZj3VFLXmgjG/Tg7Dfri76ACmTYrAD7LC2BKS/dJjRtuearUW83MDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:35:28.516994Z"},"content_sha256":"3a2d2ee460cfebc5fb2b076d6366e36d001c21b1706727971b202193a9f9c507","schema_version":"1.0","event_id":"sha256:3a2d2ee460cfebc5fb2b076d6366e36d001c21b1706727971b202193a9f9c507"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:CQKULCIMTB57DUACDKI64BOO4X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data Correction and Evolution Analysis of the ProgrammableWeb Service Ecosystem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Mingyi Liu, Quan Z. Sheng, Xiaofei Xu, Yeqi Zhu, Zhiying Tu, Zhongjie Wang","submitted_at":"2021-08-21T01:32:46Z","abstract_excerpt":"The evolution analysis on Web service ecosystems has become a critical problem as the frequency of service changes on the Internet increases rapidly. Developers need to understand these evolution patterns to assist in their decision-making on service selection. ProgrammableWeb is a popular Web service ecosystem on which several evolution analyses have been conducted in the literature. However, the existing studies have ignored the quality issues of the ProgrammableWeb dataset and the issue of service obsolescence. In this study, we first report the quality issues identified in the Programmable"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.09417","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2108.09417/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:09:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vijvOyDULHfvmr2CS8lTMHcpVXEZVxV1/k1wVJMejeOLI2KfMSiiVpQD/08swfjyY5730IGYkiw0sXvDfoFlBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:35:28.518194Z"},"content_sha256":"40a65179d0ae9842fd2587b93a0919b855ce4aedfc6f8785a7eaa58dcfac5c3b","schema_version":"1.0","event_id":"sha256:40a65179d0ae9842fd2587b93a0919b855ce4aedfc6f8785a7eaa58dcfac5c3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CQKULCIMTB57DUACDKI64BOO4X/bundle.json","state_url":"https://pith.science/pith/CQKULCIMTB57DUACDKI64BOO4X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CQKULCIMTB57DUACDKI64BOO4X/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":"2026-08-18T19:35:28Z","links":{"resolver":"https://pith.science/pith/CQKULCIMTB57DUACDKI64BOO4X","bundle":"https://pith.science/pith/CQKULCIMTB57DUACDKI64BOO4X/bundle.json","state":"https://pith.science/pith/CQKULCIMTB57DUACDKI64BOO4X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CQKULCIMTB57DUACDKI64BOO4X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:CQKULCIMTB57DUACDKI64BOO4X","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":"b6989e4c8617c406594dba1907732f77a7abf2854e55e15b38e5c893a279fad9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2021-08-21T01:32:46Z","title_canon_sha256":"7419d294296536954cbdacae6b45039ad9b1cfe880c5c0362492b639b17c947f"},"schema_version":"1.0","source":{"id":"2108.09417","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2108.09417","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"arxiv_version","alias_value":"2108.09417v1","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.09417","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_12","alias_value":"CQKULCIMTB57","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_16","alias_value":"CQKULCIMTB57DUAC","created_at":"2026-07-05T03:09:19Z"},{"alias_kind":"pith_short_8","alias_value":"CQKULCIM","created_at":"2026-07-05T03:09:19Z"}],"graph_snapshots":[{"event_id":"sha256:40a65179d0ae9842fd2587b93a0919b855ce4aedfc6f8785a7eaa58dcfac5c3b","target":"graph","created_at":"2026-07-05T03:09:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2108.09417/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The evolution analysis on Web service ecosystems has become a critical problem as the frequency of service changes on the Internet increases rapidly. Developers need to understand these evolution patterns to assist in their decision-making on service selection. ProgrammableWeb is a popular Web service ecosystem on which several evolution analyses have been conducted in the literature. However, the existing studies have ignored the quality issues of the ProgrammableWeb dataset and the issue of service obsolescence. In this study, we first report the quality issues identified in the Programmable","authors_text":"Mingyi Liu, Quan Z. Sheng, Xiaofei Xu, Yeqi Zhu, Zhiying Tu, Zhongjie Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2021-08-21T01:32:46Z","title":"Data Correction and Evolution Analysis of the ProgrammableWeb Service Ecosystem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.09417","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":"sha256:3a2d2ee460cfebc5fb2b076d6366e36d001c21b1706727971b202193a9f9c507","target":"record","created_at":"2026-07-05T03:09:19Z","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":"b6989e4c8617c406594dba1907732f77a7abf2854e55e15b38e5c893a279fad9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2021-08-21T01:32:46Z","title_canon_sha256":"7419d294296536954cbdacae6b45039ad9b1cfe880c5c0362492b639b17c947f"},"schema_version":"1.0","source":{"id":"2108.09417","kind":"arxiv","version":1}},"canonical_sha256":"141545890c987bf1d0021a91ee05cee5dbf47abd1776de564f05999a88e33f97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"141545890c987bf1d0021a91ee05cee5dbf47abd1776de564f05999a88e33f97","first_computed_at":"2026-07-05T03:09:19.601420Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:09:19.601420Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pGHFQLz0leAV5JF9LXkfBMSIkmz49ANg82+pVeNb3IDHLbwl2Vps/ZURLq9IULVoO4wPt+XVy+Qz9evV96fcAw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:09:19.601848Z","signed_message":"canonical_sha256_bytes"},"source_id":"2108.09417","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a2d2ee460cfebc5fb2b076d6366e36d001c21b1706727971b202193a9f9c507","sha256:40a65179d0ae9842fd2587b93a0919b855ce4aedfc6f8785a7eaa58dcfac5c3b"],"state_sha256":"c282e3469c0f79b7c969b234b823e89efb470ff766aca65aecc98be667011a6d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"is4Ngh54Ye7T6PZZKrAZz7+OMWkDIlEFoXZbiWYD3zf/7Dr2mJeagldZKx3nQTrPzKVQdzWdmLhskhBssMJyAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T19:35:28.528451Z","bundle_sha256":"0a947b9af7d044849e09c658d2a6f83263b0f04c1469e0b3a42118200d7609ea"}}