{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:R2MIEB34P5BJW6WVFQIBP6VZU5","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":"4cf609b45e4aa40338e8801ae0fda973fdc915dfbef199f19b757784ab5a4005","cross_cats_sorted":["cs.NI"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.PF","submitted_at":"2012-05-17T04:27:30Z","title_canon_sha256":"7c0098b2bcc43769c4711e298ed65d34d7ec2db5ff538c02ddd29149de37c615"},"schema_version":"1.0","source":{"id":"1205.3846","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.3846","created_at":"2026-05-18T03:55:24Z"},{"alias_kind":"arxiv_version","alias_value":"1205.3846v1","created_at":"2026-05-18T03:55:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3846","created_at":"2026-05-18T03:55:24Z"},{"alias_kind":"pith_short_12","alias_value":"R2MIEB34P5BJ","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_16","alias_value":"R2MIEB34P5BJW6WV","created_at":"2026-05-18T12:27:20Z"},{"alias_kind":"pith_short_8","alias_value":"R2MIEB34","created_at":"2026-05-18T12:27:20Z"}],"graph_snapshots":[{"event_id":"sha256:18b2dbfe35c0c1745d67c341a77805f275011a260ead1aa12f2109c392708e0c","target":"graph","created_at":"2026-05-18T03:55:24Z","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":"In all measurement campaigns, one needs to assert that the instrumentation tools do not significantly impact the system being monitored. This is critical to future claims based on the collected data and is sometimes overseen in experimental studies. We propose a method to evaluate the potential \"observer effect\" of an instrumentation system, and apply it to the OMF Measurement Library (OML). OML allows the instrumentation of almost any software to collect any type of measurements. As it is increasingly being used in networking research, it is important to characterise possible biases it may in","authors_text":"Guillaume Jourjon, Olivier Mehani, Thierry Rakotoarivelo","cross_cats":["cs.NI"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.PF","submitted_at":"2012-05-17T04:27:30Z","title":"A Method for the Characterisation of Observer Effects and its Application to OML"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3846","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":"sha256:385069c44d13484312f506645f40a5b5e1b5d4cf3c9a772bc3dedc7bb19acbb8","target":"record","created_at":"2026-05-18T03:55:24Z","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":"4cf609b45e4aa40338e8801ae0fda973fdc915dfbef199f19b757784ab5a4005","cross_cats_sorted":["cs.NI"],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cs.PF","submitted_at":"2012-05-17T04:27:30Z","title_canon_sha256":"7c0098b2bcc43769c4711e298ed65d34d7ec2db5ff538c02ddd29149de37c615"},"schema_version":"1.0","source":{"id":"1205.3846","kind":"arxiv","version":1}},"canonical_sha256":"8e9882077c7f429b7ad52c1017fab9a75a220ab272b89598d19189b9895b2b64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8e9882077c7f429b7ad52c1017fab9a75a220ab272b89598d19189b9895b2b64","first_computed_at":"2026-05-18T03:55:24.307608Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:55:24.307608Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RLeuvUbzYucx89MRfeJTmHoZily6RuKFa0CKUVizqPTCtACsMrfX+0ITyhDU1bpD7IlrrN6r9DUqK4eYJic8Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:55:24.308224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.3846","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:385069c44d13484312f506645f40a5b5e1b5d4cf3c9a772bc3dedc7bb19acbb8","sha256:18b2dbfe35c0c1745d67c341a77805f275011a260ead1aa12f2109c392708e0c"],"state_sha256":"4c808d8c3dcacb13e558db61dfdae2ce6f3a7250d625d4a31a366029a62bbde1"}