{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:A2FGJV6O6TIPDCAY55CUYJMWRK","short_pith_number":"pith:A2FGJV6O","canonical_record":{"source":{"id":"1710.05570","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-10-16T08:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"aaf9b489049a83534ca77463f169bd5e33082e7c588c6dae3929d4620448c69f","abstract_canon_sha256":"2cdc206ec8e851444649350a6588ba983df293f29d6801ae751b163c42b1df64"},"schema_version":"1.0"},"canonical_sha256":"068a64d7cef4d0f18818ef454c25968a9ae0b17c617a1bb0e2d2c0d2297393ac","source":{"kind":"arxiv","id":"1710.05570","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05570","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05570v1","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05570","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"pith_short_12","alias_value":"A2FGJV6O6TIP","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"A2FGJV6O6TIPDCAY","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"A2FGJV6O","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:A2FGJV6O6TIPDCAY55CUYJMWRK","target":"record","payload":{"canonical_record":{"source":{"id":"1710.05570","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-10-16T08:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"aaf9b489049a83534ca77463f169bd5e33082e7c588c6dae3929d4620448c69f","abstract_canon_sha256":"2cdc206ec8e851444649350a6588ba983df293f29d6801ae751b163c42b1df64"},"schema_version":"1.0"},"canonical_sha256":"068a64d7cef4d0f18818ef454c25968a9ae0b17c617a1bb0e2d2c0d2297393ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:58.870437Z","signature_b64":"RQ7+SyTLpBAVu9NBbY8CtTmv8id9RN7vRAsuRNnEnlQtY1sroIqj5VCZJRcn+9rI28Ms+9NzApyNKGPZnSLgBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"068a64d7cef4d0f18818ef454c25968a9ae0b17c617a1bb0e2d2c0d2297393ac","last_reissued_at":"2026-05-18T00:19:58.869905Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:58.869905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.05570","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":"2026-05-18T00:19:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SsmfHjTD66tTBSN8FrXHr851X5HIdSR55BeRBr6V0TeoGC+sP7xwol1yDTI3rNna4AJrg7rdEKSQ+ICVy8LGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:44:36.864398Z"},"content_sha256":"f820bed5671210366f47e4197fa766a436f3efe9dafa8a0828c4fe06c0cd4a7d","schema_version":"1.0","event_id":"sha256:f820bed5671210366f47e4197fa766a436f3efe9dafa8a0828c4fe06c0cd4a7d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:A2FGJV6O6TIPDCAY55CUYJMWRK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How PHP Releases Are Adopted in the Wild?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SE","authors_text":"Jukka Ruohonen, Ville Lepp\\\"anen","submitted_at":"2017-10-16T08:59:58Z","abstract_excerpt":"This empirical paper examines the adoption of PHP releases in the the contemporary world wide web. Motivated by continuous software engineering practices and software traceability improvements for release engineering, the empirical analysis is based on big data collected by web crawling. According to the empirical results based on discrete time-homogeneous Markov chain (DTMC) analysis, (i)~adoption of PHP releases has been relatively uniform across the domains observed, (ii) which tend to also adopt either old or new PHP releases relatively infrequently. Although there are outliers, (iii) down"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05570","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":"2026-05-18T00:19:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dg25CFJWYDfu/W9XvP3rT/VlPyb/ofDwEhtZzHHt952D5/Bc/cuF451roDXTx8aKMsU4rKQxsUiK7mtguTB3Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T11:44:36.864942Z"},"content_sha256":"c8460d32b7debf69c04911e51f7d15237c909db10f8828e96dd8ea6524e24c1f","schema_version":"1.0","event_id":"sha256:c8460d32b7debf69c04911e51f7d15237c909db10f8828e96dd8ea6524e24c1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/bundle.json","state_url":"https://pith.science/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/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":"2026-06-11T11:44:36Z","links":{"resolver":"https://pith.science/pith/A2FGJV6O6TIPDCAY55CUYJMWRK","bundle":"https://pith.science/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/bundle.json","state":"https://pith.science/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2FGJV6O6TIPDCAY55CUYJMWRK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:A2FGJV6O6TIPDCAY55CUYJMWRK","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":"2cdc206ec8e851444649350a6588ba983df293f29d6801ae751b163c42b1df64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-10-16T08:59:58Z","title_canon_sha256":"aaf9b489049a83534ca77463f169bd5e33082e7c588c6dae3929d4620448c69f"},"schema_version":"1.0","source":{"id":"1710.05570","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.05570","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"arxiv_version","alias_value":"1710.05570v1","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.05570","created_at":"2026-05-18T00:19:58Z"},{"alias_kind":"pith_short_12","alias_value":"A2FGJV6O6TIP","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"A2FGJV6O6TIPDCAY","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"A2FGJV6O","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:c8460d32b7debf69c04911e51f7d15237c909db10f8828e96dd8ea6524e24c1f","target":"graph","created_at":"2026-05-18T00:19:58Z","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":"This empirical paper examines the adoption of PHP releases in the the contemporary world wide web. Motivated by continuous software engineering practices and software traceability improvements for release engineering, the empirical analysis is based on big data collected by web crawling. According to the empirical results based on discrete time-homogeneous Markov chain (DTMC) analysis, (i)~adoption of PHP releases has been relatively uniform across the domains observed, (ii) which tend to also adopt either old or new PHP releases relatively infrequently. Although there are outliers, (iii) down","authors_text":"Jukka Ruohonen, Ville Lepp\\\"anen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-10-16T08:59:58Z","title":"How PHP Releases Are Adopted in the Wild?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.05570","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:f820bed5671210366f47e4197fa766a436f3efe9dafa8a0828c4fe06c0cd4a7d","target":"record","created_at":"2026-05-18T00:19:58Z","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":"2cdc206ec8e851444649350a6588ba983df293f29d6801ae751b163c42b1df64","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SE","submitted_at":"2017-10-16T08:59:58Z","title_canon_sha256":"aaf9b489049a83534ca77463f169bd5e33082e7c588c6dae3929d4620448c69f"},"schema_version":"1.0","source":{"id":"1710.05570","kind":"arxiv","version":1}},"canonical_sha256":"068a64d7cef4d0f18818ef454c25968a9ae0b17c617a1bb0e2d2c0d2297393ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"068a64d7cef4d0f18818ef454c25968a9ae0b17c617a1bb0e2d2c0d2297393ac","first_computed_at":"2026-05-18T00:19:58.869905Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:58.869905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RQ7+SyTLpBAVu9NBbY8CtTmv8id9RN7vRAsuRNnEnlQtY1sroIqj5VCZJRcn+9rI28Ms+9NzApyNKGPZnSLgBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:58.870437Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.05570","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f820bed5671210366f47e4197fa766a436f3efe9dafa8a0828c4fe06c0cd4a7d","sha256:c8460d32b7debf69c04911e51f7d15237c909db10f8828e96dd8ea6524e24c1f"],"state_sha256":"e761bf7f9564dafec5759f90bc3e7b1721db1420af4bb4b42233818c35cafd4d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UaB6CQ+y8VsDR6tk5yONRT/qgDPwSfmqfGqg6p5D8Jx2fu3wGOme9UuCSxGih+pL8C+K1mvmsGF8iACHwbaEDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T11:44:36.867604Z","bundle_sha256":"d6af77d1710b6755ad9465a5d5a1273309f98f9c289cb5a473012510995244d0"}}