{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:O3MM6T4VYURTOSEZIAONKGLWHY","short_pith_number":"pith:O3MM6T4V","canonical_record":{"source":{"id":"1504.04640","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OS","submitted_at":"2015-04-17T21:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"9364c5c36e8ed1c2e3e94402c100c7309f839f8df1f29797bfc8bcb55162d532","abstract_canon_sha256":"595cae38113dd36c014acee002811260dccfbdb39dff4e496114200946704a7a"},"schema_version":"1.0"},"canonical_sha256":"76d8cf4f95c523374899401cd519763e1168aa9582c9ad909b2efa6d1bfbd174","source":{"kind":"arxiv","id":"1504.04640","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04640","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04640v2","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04640","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"pith_short_12","alias_value":"O3MM6T4VYURT","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O3MM6T4VYURTOSEZ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O3MM6T4V","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:O3MM6T4VYURTOSEZIAONKGLWHY","target":"record","payload":{"canonical_record":{"source":{"id":"1504.04640","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OS","submitted_at":"2015-04-17T21:13:07Z","cross_cats_sorted":[],"title_canon_sha256":"9364c5c36e8ed1c2e3e94402c100c7309f839f8df1f29797bfc8bcb55162d532","abstract_canon_sha256":"595cae38113dd36c014acee002811260dccfbdb39dff4e496114200946704a7a"},"schema_version":"1.0"},"canonical_sha256":"76d8cf4f95c523374899401cd519763e1168aa9582c9ad909b2efa6d1bfbd174","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:23.763864Z","signature_b64":"jXlhAlU8piikzOUeYVVbzHT4olKAMMKXVNrffb821XwhPc1jJMha6CL+E/0J6nIB3rHk0i4BNMLyPKxIkfYVCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76d8cf4f95c523374899401cd519763e1168aa9582c9ad909b2efa6d1bfbd174","last_reissued_at":"2026-05-18T02:17:23.763150Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:23.763150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.04640","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:17:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EaB3xzyUz+V6ndEDpMao/wfFxfz15vwVpxpyd0X9WIOGLVuBHxhqyVCXO8H561B1d9ZRfzxgzoFF7uNqqCYnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:49:01.421570Z"},"content_sha256":"0956d452db6eb57f6756833656acfb2ccf8e6e0a71921d787230b7eb8672f75d","schema_version":"1.0","event_id":"sha256:0956d452db6eb57f6756833656acfb2ccf8e6e0a71921d787230b7eb8672f75d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:O3MM6T4VYURTOSEZIAONKGLWHY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Influence of Malloc Placement on TSX Hardware Transactional Memory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.OS","authors_text":"Alex Kogan, Dave Dice, Tim Harris, Yossi Lev","submitted_at":"2015-04-17T21:13:07Z","abstract_excerpt":"The hardware transactional memory (HTM) implementation in Intel's i7-4770 \"Haswell\" processor tracks the transactional read-set in the L1 (level-1), L2 (level-2) and L3 (level-3) caches and the write-set in the L1 cache. Displacement or eviction of read-set entries from the cache hierarchy or write-set entries from the L1 results in abort. We show that the placement policies of dynamic storage allocators -- such as those found in common \"malloc\" implementations -- can influence the L1 conflict miss rate in the L1. Conflict misses -- sometimes called mapping misses -- arise because of less than"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04640","kind":"arxiv","version":2},"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":"2026-05-18T02:17:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U50wREmJFkGs/7nvqEabJy+6CR90Yb4xpWIAeDMRYYM0q6g5J8hkreDecpmfHG/WfS4yS1gY0XGXZSDBeGaWDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-21T23:49:01.421909Z"},"content_sha256":"ca582f7ad60a00318a93b18f6718439403d086b3956be6931f6dea8aad065451","schema_version":"1.0","event_id":"sha256:ca582f7ad60a00318a93b18f6718439403d086b3956be6931f6dea8aad065451"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/O3MM6T4VYURTOSEZIAONKGLWHY/bundle.json","state_url":"https://pith.science/pith/O3MM6T4VYURTOSEZIAONKGLWHY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/O3MM6T4VYURTOSEZIAONKGLWHY/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":"2026-06-21T23:49:01Z","links":{"resolver":"https://pith.science/pith/O3MM6T4VYURTOSEZIAONKGLWHY","bundle":"https://pith.science/pith/O3MM6T4VYURTOSEZIAONKGLWHY/bundle.json","state":"https://pith.science/pith/O3MM6T4VYURTOSEZIAONKGLWHY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/O3MM6T4VYURTOSEZIAONKGLWHY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:O3MM6T4VYURTOSEZIAONKGLWHY","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":"595cae38113dd36c014acee002811260dccfbdb39dff4e496114200946704a7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OS","submitted_at":"2015-04-17T21:13:07Z","title_canon_sha256":"9364c5c36e8ed1c2e3e94402c100c7309f839f8df1f29797bfc8bcb55162d532"},"schema_version":"1.0","source":{"id":"1504.04640","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.04640","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"arxiv_version","alias_value":"1504.04640v2","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.04640","created_at":"2026-05-18T02:17:23Z"},{"alias_kind":"pith_short_12","alias_value":"O3MM6T4VYURT","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"O3MM6T4VYURTOSEZ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"O3MM6T4V","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:ca582f7ad60a00318a93b18f6718439403d086b3956be6931f6dea8aad065451","target":"graph","created_at":"2026-05-18T02:17:23Z","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":"The hardware transactional memory (HTM) implementation in Intel's i7-4770 \"Haswell\" processor tracks the transactional read-set in the L1 (level-1), L2 (level-2) and L3 (level-3) caches and the write-set in the L1 cache. Displacement or eviction of read-set entries from the cache hierarchy or write-set entries from the L1 results in abort. We show that the placement policies of dynamic storage allocators -- such as those found in common \"malloc\" implementations -- can influence the L1 conflict miss rate in the L1. Conflict misses -- sometimes called mapping misses -- arise because of less than","authors_text":"Alex Kogan, Dave Dice, Tim Harris, Yossi Lev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OS","submitted_at":"2015-04-17T21:13:07Z","title":"The Influence of Malloc Placement on TSX Hardware Transactional Memory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.04640","kind":"arxiv","version":2},"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":"sha256:0956d452db6eb57f6756833656acfb2ccf8e6e0a71921d787230b7eb8672f75d","target":"record","created_at":"2026-05-18T02:17:23Z","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":"595cae38113dd36c014acee002811260dccfbdb39dff4e496114200946704a7a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OS","submitted_at":"2015-04-17T21:13:07Z","title_canon_sha256":"9364c5c36e8ed1c2e3e94402c100c7309f839f8df1f29797bfc8bcb55162d532"},"schema_version":"1.0","source":{"id":"1504.04640","kind":"arxiv","version":2}},"canonical_sha256":"76d8cf4f95c523374899401cd519763e1168aa9582c9ad909b2efa6d1bfbd174","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76d8cf4f95c523374899401cd519763e1168aa9582c9ad909b2efa6d1bfbd174","first_computed_at":"2026-05-18T02:17:23.763150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:23.763150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jXlhAlU8piikzOUeYVVbzHT4olKAMMKXVNrffb821XwhPc1jJMha6CL+E/0J6nIB3rHk0i4BNMLyPKxIkfYVCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:23.763864Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.04640","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0956d452db6eb57f6756833656acfb2ccf8e6e0a71921d787230b7eb8672f75d","sha256:ca582f7ad60a00318a93b18f6718439403d086b3956be6931f6dea8aad065451"],"state_sha256":"dbb725292d8c3e1ea4384ecbc9999fdc3e4b8dac9cb5149ca9ee14b76606feeb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"90Cc3JSBHRW1/yKXuwCiwRfqvAn4gsGs5wXsCXIOkFSM6lQbut0LfX4n6JkJapUxTinl+hkzQoA3ToX4FTMkCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-21T23:49:01.423847Z","bundle_sha256":"82f9ace1d376a79b1e03f6b34e2880816407455330f85a37d97f58c0c2b5c470"}}