{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JGUBGGEZDHJGRR4H33L3RZLLWC","short_pith_number":"pith:JGUBGGEZ","canonical_record":{"source":{"id":"1310.8494","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2013-10-31T13:33:16Z","cross_cats_sorted":[],"title_canon_sha256":"bbe6cee4790a0d5d83c5a1851ff0f28499021b8bab383c98958678913d4ae012","abstract_canon_sha256":"e3905d4504fbe1a5e7569f6a57630c4cdaf83b6cff344ea6ffc2d0d38a8e0321"},"schema_version":"1.0"},"canonical_sha256":"49a813189919d268c787ded7b8e56bb08aa26f9e96ce1c1cf999d9080c88feb2","source":{"kind":"arxiv","id":"1310.8494","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.8494","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"arxiv_version","alias_value":"1310.8494v1","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8494","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"pith_short_12","alias_value":"JGUBGGEZDHJG","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JGUBGGEZDHJGRR4H","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JGUBGGEZ","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JGUBGGEZDHJGRR4H33L3RZLLWC","target":"record","payload":{"canonical_record":{"source":{"id":"1310.8494","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2013-10-31T13:33:16Z","cross_cats_sorted":[],"title_canon_sha256":"bbe6cee4790a0d5d83c5a1851ff0f28499021b8bab383c98958678913d4ae012","abstract_canon_sha256":"e3905d4504fbe1a5e7569f6a57630c4cdaf83b6cff344ea6ffc2d0d38a8e0321"},"schema_version":"1.0"},"canonical_sha256":"49a813189919d268c787ded7b8e56bb08aa26f9e96ce1c1cf999d9080c88feb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:08:16.848307Z","signature_b64":"gTs8jpaGReVrkGu9ShV3rvwClmfq8xIkHo8975H/6gliD8l3nECpDHBcSR5Iw8pk78IGRn9f9OHEkr8qhoAFCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49a813189919d268c787ded7b8e56bb08aa26f9e96ce1c1cf999d9080c88feb2","last_reissued_at":"2026-05-18T03:08:16.847539Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:08:16.847539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.8494","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":"2026-05-18T03:08:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KeNj01ymQuM2KyUD9rIXCMQutdt42aaZ6LNTxNdiVBZy4CuAqsp4XfWuvsTKlDHZ2mS92ykMTN3r6Ug61SOjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:20:03.000355Z"},"content_sha256":"f57152bd593fdd7b2647f033bb73ac0c2524226ca6507f874803510ca2f1477c","schema_version":"1.0","event_id":"sha256:f57152bd593fdd7b2647f033bb73ac0c2524226ca6507f874803510ca2f1477c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JGUBGGEZDHJGRR4H33L3RZLLWC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using Cache-coloring to Mitigate Inter-set Write Variation in Non-volatile Caches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.AR","authors_text":"Sparsh Mittal","submitted_at":"2013-10-31T13:33:16Z","abstract_excerpt":"In recent years, researchers have explored use of non-volatile devices such as STT-RAM (spin torque transfer RAM) for designing on-chip caches, since they provide high density and consume low leakage power. A common limitation of all non-volatile devices is their limited write endurance. Further, since existing cache management policies are write-variation unaware, excessive writes to a few blocks may lead to a quick failure of the whole cache. We propose an architectural technique for wear-leveling of non-volatile last level caches (LLCs). Our technique uses cache-coloring approach which adds"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8494","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":"2026-05-18T03:08:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jUKMEiJuQiCpiNGNRxtXT2++1fHr0c98y6aUqf5Dr1/Yp/3BgzLnhnkSr7OdUZ8uQ6VLyMYue7kihtio8bdUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:20:03.001000Z"},"content_sha256":"7a0632a790910c26170f4f371de417737b3f089c6448cfeb1285c3afd234e13c","schema_version":"1.0","event_id":"sha256:7a0632a790910c26170f4f371de417737b3f089c6448cfeb1285c3afd234e13c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/bundle.json","state_url":"https://pith.science/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/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":"2026-05-27T03:20:03Z","links":{"resolver":"https://pith.science/pith/JGUBGGEZDHJGRR4H33L3RZLLWC","bundle":"https://pith.science/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/bundle.json","state":"https://pith.science/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JGUBGGEZDHJGRR4H33L3RZLLWC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JGUBGGEZDHJGRR4H33L3RZLLWC","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":"e3905d4504fbe1a5e7569f6a57630c4cdaf83b6cff344ea6ffc2d0d38a8e0321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2013-10-31T13:33:16Z","title_canon_sha256":"bbe6cee4790a0d5d83c5a1851ff0f28499021b8bab383c98958678913d4ae012"},"schema_version":"1.0","source":{"id":"1310.8494","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.8494","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"arxiv_version","alias_value":"1310.8494v1","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.8494","created_at":"2026-05-18T03:08:16Z"},{"alias_kind":"pith_short_12","alias_value":"JGUBGGEZDHJG","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JGUBGGEZDHJGRR4H","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JGUBGGEZ","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:7a0632a790910c26170f4f371de417737b3f089c6448cfeb1285c3afd234e13c","target":"graph","created_at":"2026-05-18T03:08:16Z","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 recent years, researchers have explored use of non-volatile devices such as STT-RAM (spin torque transfer RAM) for designing on-chip caches, since they provide high density and consume low leakage power. A common limitation of all non-volatile devices is their limited write endurance. Further, since existing cache management policies are write-variation unaware, excessive writes to a few blocks may lead to a quick failure of the whole cache. We propose an architectural technique for wear-leveling of non-volatile last level caches (LLCs). Our technique uses cache-coloring approach which adds","authors_text":"Sparsh Mittal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2013-10-31T13:33:16Z","title":"Using Cache-coloring to Mitigate Inter-set Write Variation in Non-volatile Caches"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.8494","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:f57152bd593fdd7b2647f033bb73ac0c2524226ca6507f874803510ca2f1477c","target":"record","created_at":"2026-05-18T03:08:16Z","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":"e3905d4504fbe1a5e7569f6a57630c4cdaf83b6cff344ea6ffc2d0d38a8e0321","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AR","submitted_at":"2013-10-31T13:33:16Z","title_canon_sha256":"bbe6cee4790a0d5d83c5a1851ff0f28499021b8bab383c98958678913d4ae012"},"schema_version":"1.0","source":{"id":"1310.8494","kind":"arxiv","version":1}},"canonical_sha256":"49a813189919d268c787ded7b8e56bb08aa26f9e96ce1c1cf999d9080c88feb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49a813189919d268c787ded7b8e56bb08aa26f9e96ce1c1cf999d9080c88feb2","first_computed_at":"2026-05-18T03:08:16.847539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:08:16.847539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gTs8jpaGReVrkGu9ShV3rvwClmfq8xIkHo8975H/6gliD8l3nECpDHBcSR5Iw8pk78IGRn9f9OHEkr8qhoAFCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:08:16.848307Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.8494","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f57152bd593fdd7b2647f033bb73ac0c2524226ca6507f874803510ca2f1477c","sha256:7a0632a790910c26170f4f371de417737b3f089c6448cfeb1285c3afd234e13c"],"state_sha256":"cbf31c9973361dbef8b81b1089589319fe1325f50bb40405e15041d796c41645"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+K3xXuzSInMQT9B5wHDMxXA1piLID4N9zobiGpIN2JRZke+xBcgL8nTRQxMcftyDFBzotyyExD0Z3gBPPDVTBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T03:20:03.003957Z","bundle_sha256":"726408f00557cffd6cdb9a8ace54f2faf90a0bdc086196ca2bebfaf30f3d0793"}}