{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:6NS5YC23O34BIC5AONJXKHTDHP","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":"37c59fe7e664f13fccc22c3f2d356ecf1e6eec8d2a5d24861a846cc30560eb98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-05-21T07:00:05Z","title_canon_sha256":"93149ec25b635c3edae447933550e5a4c9d0fe48b229b72ded6b266a80117ae0"},"schema_version":"1.0","source":{"id":"1505.05617","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.05617","created_at":"2026-05-18T01:15:36Z"},{"alias_kind":"arxiv_version","alias_value":"1505.05617v3","created_at":"2026-05-18T01:15:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.05617","created_at":"2026-05-18T01:15:36Z"},{"alias_kind":"pith_short_12","alias_value":"6NS5YC23O34B","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"6NS5YC23O34BIC5A","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"6NS5YC23","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:cca314fa5c943e12e534715ff70bd70345ee4cd7e10dbf9c05a3c8a90f8c54c3","target":"graph","created_at":"2026-05-18T01:15:36Z","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":"As the volume of data grows, astronomers are increasingly faced with choices on what data to keep -- and what to throw away. Recent work evaluating the JPEG2000 (ISO/IEC 15444) standards as a future data format standard in astronomy has shown promising results on observational data. However, there is still a need to evaluate its potential on other type of astronomical data, such as from numerical simulations. GERLUMPH (the GPU-Enabled High Resolution cosmological MicroLensing parameter survey) represents an example of a data intensive project in theoretical astrophysics. In the next phase of p","authors_text":"Christopher J. Fluke, Dany Vohl, Georgios Vernardos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-05-21T07:00:05Z","title":"Data Compression in the Petascale Astronomy Era: a GERLUMPH case study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.05617","kind":"arxiv","version":3},"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:bf99dce746e542d3d141c93066b54015c6fdc9ca34221891840e83b42bd2af9c","target":"record","created_at":"2026-05-18T01:15:36Z","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":"37c59fe7e664f13fccc22c3f2d356ecf1e6eec8d2a5d24861a846cc30560eb98","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-05-21T07:00:05Z","title_canon_sha256":"93149ec25b635c3edae447933550e5a4c9d0fe48b229b72ded6b266a80117ae0"},"schema_version":"1.0","source":{"id":"1505.05617","kind":"arxiv","version":3}},"canonical_sha256":"f365dc0b5b76f8140ba07353751e633bcca2c3100f51c3d83226fe18e81d5d25","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f365dc0b5b76f8140ba07353751e633bcca2c3100f51c3d83226fe18e81d5d25","first_computed_at":"2026-05-18T01:15:36.252335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:15:36.252335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Eo/78mVxU17ZUAOnqv8jBgds1dseLY5q/A3cGGi49wTwWvvWHt6qjDHkHAvUjzCwZKUV/FyyAWSmESWbJGBDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:15:36.253174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.05617","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf99dce746e542d3d141c93066b54015c6fdc9ca34221891840e83b42bd2af9c","sha256:cca314fa5c943e12e534715ff70bd70345ee4cd7e10dbf9c05a3c8a90f8c54c3"],"state_sha256":"99ad383b264d92d581b6eaae6c03ea3eeb12f86e3e08a16a4bbf18dfd019c841"}