{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:CPZ7OVBANXT3PN6BVT6XWQSFUL","short_pith_number":"pith:CPZ7OVBA","canonical_record":{"source":{"id":"2502.20818","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2025-02-28T08:05:18Z","cross_cats_sorted":[],"title_canon_sha256":"47afc353eb32dde5730753e1bc68ddb5b93772b9fb0f80049b29a3fa9a88dbe9","abstract_canon_sha256":"907a16c3ddfd0ac8c70ba0c62cd6f1568b994a160b296ac259be2b77cb73a863"},"schema_version":"1.0"},"canonical_sha256":"13f3f754206de7b7b7c1acfd7b4245a2f6f49696d8302e25be1296f36b0da1ef","source":{"kind":"arxiv","id":"2502.20818","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.20818","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2502.20818v1","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20818","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"CPZ7OVBANXT3","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"CPZ7OVBANXT3PN6B","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"CPZ7OVBA","created_at":"2026-07-05T10:21:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:CPZ7OVBANXT3PN6BVT6XWQSFUL","target":"record","payload":{"canonical_record":{"source":{"id":"2502.20818","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2025-02-28T08:05:18Z","cross_cats_sorted":[],"title_canon_sha256":"47afc353eb32dde5730753e1bc68ddb5b93772b9fb0f80049b29a3fa9a88dbe9","abstract_canon_sha256":"907a16c3ddfd0ac8c70ba0c62cd6f1568b994a160b296ac259be2b77cb73a863"},"schema_version":"1.0"},"canonical_sha256":"13f3f754206de7b7b7c1acfd7b4245a2f6f49696d8302e25be1296f36b0da1ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:21:40.319238Z","signature_b64":"+QnDyZL1/GHLqWJXGolKUhy6z+7kw7bRdZ5SXa+cPluzKEqpSfhTM/vXZfgU3i9KxCFGzsgZetd3kK32KQFeAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13f3f754206de7b7b7c1acfd7b4245a2f6f49696d8302e25be1296f36b0da1ef","last_reissued_at":"2026-07-05T10:21:40.318764Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:21:40.318764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.20818","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":"2026-07-05T10:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dLv6sweKQPpZ4HlQXMg1BL+IEUJFiKat85ALsMbcxExU0FQ0Q4+8/Oei1YW0Vi8yToD8zKPEj/WFUPa3+3J1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:44:14.277081Z"},"content_sha256":"c61b5481f2abfd65b466f2d68c8c99dffdaf476e3578cef9aa918eefc588ee05","schema_version":"1.0","event_id":"sha256:c61b5481f2abfd65b466f2d68c8c99dffdaf476e3578cef9aa918eefc588ee05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:CPZ7OVBANXT3PN6BVT6XWQSFUL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SkyStore: Cost-Optimized Object Storage Across Regions and Clouds","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Audrey Cheng, Danny Harnik, Gil Vernik, Guy Girmonsky, Henric Zhang, Ion Stoica, Joseph E. Gonzalez, Michael Factor, Moshik Hershcovitch, Natacha Crooks, Shu Liu, Soujanya Ponnapalli, Tiemo Bang, Xiangxi Mo","submitted_at":"2025-02-28T08:05:18Z","abstract_excerpt":"Modern applications span multiple clouds to reduce costs, avoid vendor lock-in, and leverage low-availability resources in another cloud. However, standard object stores operate within a single cloud, forcing users to manually manage data placement across clouds, i.e., navigate their diverse APIs and handle heterogeneous costs for network and storage. This is often a complex choice: users must either pay to store objects in a remote cloud, or pay to transfer them over the network based on application access patterns and cloud provider cost offerings. To address this, we present SkyStore, a uni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20818","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/2502.20818/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":"2026-07-05T10:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ODgSy6n468SGCYqPbltDX2QM34dEO+xaWbPhqOqqy62AjYV+bo8EdxFmLM3hIlq7TsJlji+AakXfSYwXp7VAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:44:14.277567Z"},"content_sha256":"b75738ad1876b84baac93003131f3f4e8204f7f113d5b5440267cde26ab6df38","schema_version":"1.0","event_id":"sha256:b75738ad1876b84baac93003131f3f4e8204f7f113d5b5440267cde26ab6df38"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/bundle.json","state_url":"https://pith.science/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/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":"2026-08-13T18:44:14Z","links":{"resolver":"https://pith.science/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL","bundle":"https://pith.science/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/bundle.json","state":"https://pith.science/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CPZ7OVBANXT3PN6BVT6XWQSFUL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:CPZ7OVBANXT3PN6BVT6XWQSFUL","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":"907a16c3ddfd0ac8c70ba0c62cd6f1568b994a160b296ac259be2b77cb73a863","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2025-02-28T08:05:18Z","title_canon_sha256":"47afc353eb32dde5730753e1bc68ddb5b93772b9fb0f80049b29a3fa9a88dbe9"},"schema_version":"1.0","source":{"id":"2502.20818","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.20818","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2502.20818v1","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20818","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"CPZ7OVBANXT3","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"CPZ7OVBANXT3PN6B","created_at":"2026-07-05T10:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"CPZ7OVBA","created_at":"2026-07-05T10:21:40Z"}],"graph_snapshots":[{"event_id":"sha256:b75738ad1876b84baac93003131f3f4e8204f7f113d5b5440267cde26ab6df38","target":"graph","created_at":"2026-07-05T10:21:40Z","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/2502.20818/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern applications span multiple clouds to reduce costs, avoid vendor lock-in, and leverage low-availability resources in another cloud. However, standard object stores operate within a single cloud, forcing users to manually manage data placement across clouds, i.e., navigate their diverse APIs and handle heterogeneous costs for network and storage. This is often a complex choice: users must either pay to store objects in a remote cloud, or pay to transfer them over the network based on application access patterns and cloud provider cost offerings. To address this, we present SkyStore, a uni","authors_text":"Audrey Cheng, Danny Harnik, Gil Vernik, Guy Girmonsky, Henric Zhang, Ion Stoica, Joseph E. Gonzalez, Michael Factor, Moshik Hershcovitch, Natacha Crooks, Shu Liu, Soujanya Ponnapalli, Tiemo Bang, Xiangxi Mo","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2025-02-28T08:05:18Z","title":"SkyStore: Cost-Optimized Object Storage Across Regions and Clouds"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20818","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:c61b5481f2abfd65b466f2d68c8c99dffdaf476e3578cef9aa918eefc588ee05","target":"record","created_at":"2026-07-05T10:21:40Z","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":"907a16c3ddfd0ac8c70ba0c62cd6f1568b994a160b296ac259be2b77cb73a863","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2025-02-28T08:05:18Z","title_canon_sha256":"47afc353eb32dde5730753e1bc68ddb5b93772b9fb0f80049b29a3fa9a88dbe9"},"schema_version":"1.0","source":{"id":"2502.20818","kind":"arxiv","version":1}},"canonical_sha256":"13f3f754206de7b7b7c1acfd7b4245a2f6f49696d8302e25be1296f36b0da1ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"13f3f754206de7b7b7c1acfd7b4245a2f6f49696d8302e25be1296f36b0da1ef","first_computed_at":"2026-07-05T10:21:40.318764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:21:40.318764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+QnDyZL1/GHLqWJXGolKUhy6z+7kw7bRdZ5SXa+cPluzKEqpSfhTM/vXZfgU3i9KxCFGzsgZetd3kK32KQFeAg==","signature_status":"signed_v1","signed_at":"2026-07-05T10:21:40.319238Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.20818","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c61b5481f2abfd65b466f2d68c8c99dffdaf476e3578cef9aa918eefc588ee05","sha256:b75738ad1876b84baac93003131f3f4e8204f7f113d5b5440267cde26ab6df38"],"state_sha256":"238207fdf8b46cfc034eb1dd7651f7c0161b80e334c3ca379a9584d361c6202b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tCKza7MQVaq5wqjv4yqowK6BCqDgT9u76JZLWVMOaYoT8S94ldOVlN7ZXR3PQyzGPqRfxAY6Kjgw+0SgRMqFBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T18:44:14.280518Z","bundle_sha256":"604f18a00c08e8e113f2dbb547947b2a2ced77b82c970e54f5f4795c8ed72d33"}}