{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2G3K4JMDQ6JUQAGVZRMSNXTYR5","short_pith_number":"pith:2G3K4JMD","canonical_record":{"source":{"id":"2403.12698","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AR","submitted_at":"2024-03-19T12:56:02Z","cross_cats_sorted":["cs.CY"],"title_canon_sha256":"bb2dcc5254dc31e8835c548aa8cb1fb6990bea22bb6c0c639991f0809ef616d2","abstract_canon_sha256":"ffe1fd98f0178caf53d42ea76d411553ac31f5daffc943c4da84d8c7386c88d2"},"schema_version":"1.0"},"canonical_sha256":"d1b6ae258387934800d5cc5926de788f5ffb6e1bf0f4226cdeb6387847425aeb","source":{"kind":"arxiv","id":"2403.12698","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.12698","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"2403.12698v1","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.12698","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"2G3K4JMDQ6JU","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_16","alias_value":"2G3K4JMDQ6JUQAGV","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_8","alias_value":"2G3K4JMD","created_at":"2026-07-05T07:58:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2G3K4JMDQ6JUQAGVZRMSNXTYR5","target":"record","payload":{"canonical_record":{"source":{"id":"2403.12698","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AR","submitted_at":"2024-03-19T12:56:02Z","cross_cats_sorted":["cs.CY"],"title_canon_sha256":"bb2dcc5254dc31e8835c548aa8cb1fb6990bea22bb6c0c639991f0809ef616d2","abstract_canon_sha256":"ffe1fd98f0178caf53d42ea76d411553ac31f5daffc943c4da84d8c7386c88d2"},"schema_version":"1.0"},"canonical_sha256":"d1b6ae258387934800d5cc5926de788f5ffb6e1bf0f4226cdeb6387847425aeb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:58:05.643019Z","signature_b64":"ApBkslHorFUVu6PrBq6V/bkEkCFmxyPYBohFq1wx0exTX2PNm+eI8obfaEIzks1wYGktOQE5PwCTs+CbvuVCCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1b6ae258387934800d5cc5926de788f5ffb6e1bf0f4226cdeb6387847425aeb","last_reissued_at":"2026-07-05T07:58:05.642579Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:58:05.642579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.12698","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":"2026-07-05T07:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mhe3Eg8jrUvl4Tg0FHsSNOyuL/qsvK0cQMw//hGJv8nHYafuP+fD9gqs5HqLPo4xnFJmzSxDo+2atgngalMwBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:58:14.696405Z"},"content_sha256":"100042bedd3ac1147382ad3dd7af79b578e5458a4475686b30b89d80c43230c8","schema_version":"1.0","event_id":"sha256:100042bedd3ac1147382ad3dd7af79b578e5458a4475686b30b89d80c43230c8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2G3K4JMDQ6JUQAGVZRMSNXTYR5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"System Support for Environmentally Sustainable Computing in Data Centers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CY"],"primary_cat":"cs.AR","authors_text":"Fan Chen","submitted_at":"2024-03-19T12:56:02Z","abstract_excerpt":"Modern data centers suffer from a growing carbon footprint due to insufficient support for environmental sustainability. While hardware accelerators and renewable energy have been utilized to enhance sustainability, addressing Quality of Service (QoS) degradation caused by renewable energy supply and hardware recycling remains challenging: (1) prior accelerators exhibit significant carbon footprints due to limited reconfigurability and inability to adapt to renewable energy fluctuations; (2) integrating recycled NAND flash chips in data centers poses challenges due to their short lifetime, inc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.12698","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.12698/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:58:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gbjTGbR8ZLW94Oe5f/QBkadQXx10B+1GhYC6BESpA6uur1EzJGadOc6puCj5I7Guu5mfpb/8gL74sQ29EKDDDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:58:14.696884Z"},"content_sha256":"c0dbc746c03e1b03ed59139bee4dd76c6bcadd2f8db70981601b8a0633d312d5","schema_version":"1.0","event_id":"sha256:c0dbc746c03e1b03ed59139bee4dd76c6bcadd2f8db70981601b8a0633d312d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/bundle.json","state_url":"https://pith.science/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/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":"2026-08-05T09:58:14Z","links":{"resolver":"https://pith.science/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5","bundle":"https://pith.science/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/bundle.json","state":"https://pith.science/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2G3K4JMDQ6JUQAGVZRMSNXTYR5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2G3K4JMDQ6JUQAGVZRMSNXTYR5","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":"ffe1fd98f0178caf53d42ea76d411553ac31f5daffc943c4da84d8c7386c88d2","cross_cats_sorted":["cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AR","submitted_at":"2024-03-19T12:56:02Z","title_canon_sha256":"bb2dcc5254dc31e8835c548aa8cb1fb6990bea22bb6c0c639991f0809ef616d2"},"schema_version":"1.0","source":{"id":"2403.12698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.12698","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"arxiv_version","alias_value":"2403.12698v1","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.12698","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_12","alias_value":"2G3K4JMDQ6JU","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_16","alias_value":"2G3K4JMDQ6JUQAGV","created_at":"2026-07-05T07:58:05Z"},{"alias_kind":"pith_short_8","alias_value":"2G3K4JMD","created_at":"2026-07-05T07:58:05Z"}],"graph_snapshots":[{"event_id":"sha256:c0dbc746c03e1b03ed59139bee4dd76c6bcadd2f8db70981601b8a0633d312d5","target":"graph","created_at":"2026-07-05T07:58:05Z","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/2403.12698/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern data centers suffer from a growing carbon footprint due to insufficient support for environmental sustainability. While hardware accelerators and renewable energy have been utilized to enhance sustainability, addressing Quality of Service (QoS) degradation caused by renewable energy supply and hardware recycling remains challenging: (1) prior accelerators exhibit significant carbon footprints due to limited reconfigurability and inability to adapt to renewable energy fluctuations; (2) integrating recycled NAND flash chips in data centers poses challenges due to their short lifetime, inc","authors_text":"Fan Chen","cross_cats":["cs.CY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AR","submitted_at":"2024-03-19T12:56:02Z","title":"System Support for Environmentally Sustainable Computing in Data Centers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.12698","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":"sha256:100042bedd3ac1147382ad3dd7af79b578e5458a4475686b30b89d80c43230c8","target":"record","created_at":"2026-07-05T07:58:05Z","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":"ffe1fd98f0178caf53d42ea76d411553ac31f5daffc943c4da84d8c7386c88d2","cross_cats_sorted":["cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.AR","submitted_at":"2024-03-19T12:56:02Z","title_canon_sha256":"bb2dcc5254dc31e8835c548aa8cb1fb6990bea22bb6c0c639991f0809ef616d2"},"schema_version":"1.0","source":{"id":"2403.12698","kind":"arxiv","version":1}},"canonical_sha256":"d1b6ae258387934800d5cc5926de788f5ffb6e1bf0f4226cdeb6387847425aeb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1b6ae258387934800d5cc5926de788f5ffb6e1bf0f4226cdeb6387847425aeb","first_computed_at":"2026-07-05T07:58:05.642579Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:58:05.642579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ApBkslHorFUVu6PrBq6V/bkEkCFmxyPYBohFq1wx0exTX2PNm+eI8obfaEIzks1wYGktOQE5PwCTs+CbvuVCCw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:58:05.643019Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.12698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:100042bedd3ac1147382ad3dd7af79b578e5458a4475686b30b89d80c43230c8","sha256:c0dbc746c03e1b03ed59139bee4dd76c6bcadd2f8db70981601b8a0633d312d5"],"state_sha256":"2927179ee3a0f823484e97d7c365b08baf9c9744520b6c5bec93e4ad03d95aab"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BaUyLBzqVO3VSsfpdp9iPR2Mi05YMOnmXU/Km3aBdVKID+Iof3uWJ9fSltSSWkO1bTDabXmX4XyYBxg7tbumAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T09:58:14.700137Z","bundle_sha256":"2de324a25b366397ffdd23d7c987b5e2f3064ea62d11a9d1be02f398b9163bdd"}}