{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YGK422YTUEUUHUOT6W5SEFL43V","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":"0bb88800956fcb99d645db4668a737e65033bf0f340487c5701a352404cb9c06","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.PL","submitted_at":"2025-06-20T10:11:03Z","title_canon_sha256":"9b0113e103fa8b119b29083330ff5e9f3bcf8c922431d774bc9595be5859492b"},"schema_version":"1.0","source":{"id":"2506.16883","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.16883","created_at":"2026-07-05T11:24:44Z"},{"alias_kind":"arxiv_version","alias_value":"2506.16883v1","created_at":"2026-07-05T11:24:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.16883","created_at":"2026-07-05T11:24:44Z"},{"alias_kind":"pith_short_12","alias_value":"YGK422YTUEUU","created_at":"2026-07-05T11:24:44Z"},{"alias_kind":"pith_short_16","alias_value":"YGK422YTUEUUHUOT","created_at":"2026-07-05T11:24:44Z"},{"alias_kind":"pith_short_8","alias_value":"YGK422YT","created_at":"2026-07-05T11:24:44Z"}],"graph_snapshots":[{"event_id":"sha256:fbb6ab790fe2f381cd16481a8ccb951d2f721913c958aac5ee9065aece1fbe15","target":"graph","created_at":"2026-07-05T11:24:44Z","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/2506.16883/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Compared to the more commonly used time-based profiling, allocation profiling provides an alternate view of the execution of allocation heavy dynamically typed languages. However, profiling every single allocation in a program is very inefficient. We present a sampling allocation profiler that is deeply integrated into the garbage collector of PyPy, a Python virtual machine. This integration ensures tunable low overhead for the allocation profiler, which we measure and quantify. Enabling allocation sampling profiling with a sampling period of 4 MB leads to a maximum time overhead of 25% in our","authors_text":"C.F. Bolz-Tereick, Christoph Jung","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.PL","submitted_at":"2025-06-20T10:11:03Z","title":"Low Overhead Allocation Sampling in a Garbage Collected Virtual Machine"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.16883","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:f823b04f4a38775695e70cc31d653f2374e3cc5182418c0d805fd9ed4d01ff99","target":"record","created_at":"2026-07-05T11:24:44Z","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":"0bb88800956fcb99d645db4668a737e65033bf0f340487c5701a352404cb9c06","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.PL","submitted_at":"2025-06-20T10:11:03Z","title_canon_sha256":"9b0113e103fa8b119b29083330ff5e9f3bcf8c922431d774bc9595be5859492b"},"schema_version":"1.0","source":{"id":"2506.16883","kind":"arxiv","version":1}},"canonical_sha256":"c195cd6b13a12943d1d3f5bb22157cdd68ca7e274465433c898e221c5e1db6a0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c195cd6b13a12943d1d3f5bb22157cdd68ca7e274465433c898e221c5e1db6a0","first_computed_at":"2026-07-05T11:24:44.477745Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:24:44.477745Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A8kFEoFxY9g1FbrnT+xI2iL1csiNtgX4xAvFdR+qR4SBp1Ag3ao9SBnaEmgIEO6QoER9CVHpzGixu7t0CcGaDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:24:44.478222Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.16883","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f823b04f4a38775695e70cc31d653f2374e3cc5182418c0d805fd9ed4d01ff99","sha256:fbb6ab790fe2f381cd16481a8ccb951d2f721913c958aac5ee9065aece1fbe15"],"state_sha256":"6edf8e4d24af1657e64a912153ecc77c5eca9ea0720b36f290d1652be1e08b90"}