{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IGDELZ7UNQN2BCTB4QCBYEBH62","short_pith_number":"pith:IGDELZ7U","canonical_record":{"source":{"id":"1410.1309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2014-10-06T10:02:22Z","cross_cats_sorted":[],"title_canon_sha256":"cfd49c8bcecb008f3e3070e0466573c3a710c53374d61fe458839fc9e13515f1","abstract_canon_sha256":"74877d486bc3b0072a42069a9eee2d94499694bf71c98c358d5dd72982aa35e9"},"schema_version":"1.0"},"canonical_sha256":"418645e7f46c1ba08a61e4041c1027f68ff42866147c1bfe65fd14f639c3eafa","source":{"kind":"arxiv","id":"1410.1309","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.1309","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1410.1309v1","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.1309","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"IGDELZ7UNQN2","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IGDELZ7UNQN2BCTB","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IGDELZ7U","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IGDELZ7UNQN2BCTB4QCBYEBH62","target":"record","payload":{"canonical_record":{"source":{"id":"1410.1309","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2014-10-06T10:02:22Z","cross_cats_sorted":[],"title_canon_sha256":"cfd49c8bcecb008f3e3070e0466573c3a710c53374d61fe458839fc9e13515f1","abstract_canon_sha256":"74877d486bc3b0072a42069a9eee2d94499694bf71c98c358d5dd72982aa35e9"},"schema_version":"1.0"},"canonical_sha256":"418645e7f46c1ba08a61e4041c1027f68ff42866147c1bfe65fd14f639c3eafa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:02.333184Z","signature_b64":"g7QlH0h65MjrCVhjxF/uhG2EPOv1oBjM2msQbtxL2HJ5ejcBtM2jEfBUUh3pWpLZ3w82G5U1qj4uFgYby0OoBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"418645e7f46c1ba08a61e4041c1027f68ff42866147c1bfe65fd14f639c3eafa","last_reissued_at":"2026-05-18T02:41:02.332648Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:02.332648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.1309","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":"2026-05-18T02:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HZ8VVhSY21G4CAgTd9izxs3tROhiYYKgFBExadm2SD5pLJiKtDV5h7mLrrgI5IefpilxP3W9npGD1US60N5zCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:31:34.102951Z"},"content_sha256":"11f7ec62ec7d2e41ffeee032e7c4634aaac5512a4dee06ffc6178c597dc6a163","schema_version":"1.0","event_id":"sha256:11f7ec62ec7d2e41ffeee032e7c4634aaac5512a4dee06ffc6178c597dc6a163"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IGDELZ7UNQN2BCTB4QCBYEBH62","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"BiDAl: Big Data Analyzer for Cluster Traces","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Alina S\\^irbu, Alkida Balliu, Dennis Olivetti, Moreno Marzolla, Ozalp Babaoglu","submitted_at":"2014-10-06T10:02:22Z","abstract_excerpt":"Modern data centers that provide Internet-scale services are stadium-size structures housing tens of thousands of heterogeneous devices (server clusters, networking equipment, power and cooling infrastructures) that must operate continuously and reliably. As part of their operation, these devices produce large amounts of data in the form of event and error logs that are essential not only for identifying problems but also for improving data center efficiency and management. These activities employ data analytics and often exploit hidden statistical patterns and correlations among different fac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.1309","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":"2026-05-18T02:41:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ODEpuey+Ql6ax3Vgfx7mivZRNXc7ZbqcS/Y5bJaXT+Uv5D5D4nbz48WJPAlejBNVpd3nO23yEOT99aOQQzu0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:31:34.103583Z"},"content_sha256":"46d4f415cda7945ab666d4673fa5806bfd7f325c7d7053e1a5642ec5bc7ce3ca","schema_version":"1.0","event_id":"sha256:46d4f415cda7945ab666d4673fa5806bfd7f325c7d7053e1a5642ec5bc7ce3ca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/bundle.json","state_url":"https://pith.science/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/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":"2026-05-27T00:31:34Z","links":{"resolver":"https://pith.science/pith/IGDELZ7UNQN2BCTB4QCBYEBH62","bundle":"https://pith.science/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/bundle.json","state":"https://pith.science/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IGDELZ7UNQN2BCTB4QCBYEBH62/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IGDELZ7UNQN2BCTB4QCBYEBH62","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":"74877d486bc3b0072a42069a9eee2d94499694bf71c98c358d5dd72982aa35e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2014-10-06T10:02:22Z","title_canon_sha256":"cfd49c8bcecb008f3e3070e0466573c3a710c53374d61fe458839fc9e13515f1"},"schema_version":"1.0","source":{"id":"1410.1309","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.1309","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"arxiv_version","alias_value":"1410.1309v1","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.1309","created_at":"2026-05-18T02:41:02Z"},{"alias_kind":"pith_short_12","alias_value":"IGDELZ7UNQN2","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IGDELZ7UNQN2BCTB","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IGDELZ7U","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:46d4f415cda7945ab666d4673fa5806bfd7f325c7d7053e1a5642ec5bc7ce3ca","target":"graph","created_at":"2026-05-18T02:41:02Z","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":"Modern data centers that provide Internet-scale services are stadium-size structures housing tens of thousands of heterogeneous devices (server clusters, networking equipment, power and cooling infrastructures) that must operate continuously and reliably. As part of their operation, these devices produce large amounts of data in the form of event and error logs that are essential not only for identifying problems but also for improving data center efficiency and management. These activities employ data analytics and often exploit hidden statistical patterns and correlations among different fac","authors_text":"Alina S\\^irbu, Alkida Balliu, Dennis Olivetti, Moreno Marzolla, Ozalp Babaoglu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2014-10-06T10:02:22Z","title":"BiDAl: Big Data Analyzer for Cluster Traces"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.1309","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":"sha256:11f7ec62ec7d2e41ffeee032e7c4634aaac5512a4dee06ffc6178c597dc6a163","target":"record","created_at":"2026-05-18T02:41:02Z","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":"74877d486bc3b0072a42069a9eee2d94499694bf71c98c358d5dd72982aa35e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2014-10-06T10:02:22Z","title_canon_sha256":"cfd49c8bcecb008f3e3070e0466573c3a710c53374d61fe458839fc9e13515f1"},"schema_version":"1.0","source":{"id":"1410.1309","kind":"arxiv","version":1}},"canonical_sha256":"418645e7f46c1ba08a61e4041c1027f68ff42866147c1bfe65fd14f639c3eafa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"418645e7f46c1ba08a61e4041c1027f68ff42866147c1bfe65fd14f639c3eafa","first_computed_at":"2026-05-18T02:41:02.332648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:41:02.332648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g7QlH0h65MjrCVhjxF/uhG2EPOv1oBjM2msQbtxL2HJ5ejcBtM2jEfBUUh3pWpLZ3w82G5U1qj4uFgYby0OoBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:41:02.333184Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.1309","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11f7ec62ec7d2e41ffeee032e7c4634aaac5512a4dee06ffc6178c597dc6a163","sha256:46d4f415cda7945ab666d4673fa5806bfd7f325c7d7053e1a5642ec5bc7ce3ca"],"state_sha256":"82b56d4852731f09bfdd701b6d238d7eb12cb13942e5460af23e84f950cdd490"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QymJw0OJfOIjCFlG3EUolM+8bR3uOt/rrpWlzSlc9FTQ6wD7Z1lYweiM7FauAie2XX1qBz4tpwxGEwuPcyvJBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:31:34.106743Z","bundle_sha256":"1bc5abe4f6b500474040acf52f1ff04a29cf3f67ef16822505a26063baff8b9c"}}