{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:PJVIVUKEP4PBPV7SXG7ZBA4VRD","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":"8142ec68e51ebe8f0f01ed02085bb3a74ac295557a6020fd330aff0b1e9b0e08","cross_cats_sorted":["cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-30T17:35:06Z","title_canon_sha256":"446b62bcf55e3258fb877a83e3090349430f45897a9a067d76e633fa8e5d66a8"},"schema_version":"1.0","source":{"id":"2607.28571","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.28571","created_at":"2026-07-31T01:38:35Z"},{"alias_kind":"arxiv_version","alias_value":"2607.28571v1","created_at":"2026-07-31T01:38:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.28571","created_at":"2026-07-31T01:38:35Z"},{"alias_kind":"pith_short_12","alias_value":"PJVIVUKEP4PB","created_at":"2026-07-31T01:38:35Z"},{"alias_kind":"pith_short_16","alias_value":"PJVIVUKEP4PBPV7S","created_at":"2026-07-31T01:38:35Z"},{"alias_kind":"pith_short_8","alias_value":"PJVIVUKE","created_at":"2026-07-31T01:38:35Z"}],"graph_snapshots":[{"event_id":"sha256:48da35ff7274f6b690409f6cc6e8297932cb9ded5b73ce237b5ecefa22cce717","target":"graph","created_at":"2026-07-31T01:38:35Z","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/2607.28571/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Operational Earth observation increasingly calls for answering queries such as ``find the image pairs where a new building appeared.'' This means searching an archive of before-and-after (bi-temporal) satellite image pairs and ranking each pair by how well it matches a natural-language description of the change. The component that performs this match, the fusion module that combines the ``before'' and ``after'' views, must be run at query time across many candidate pairs, so its speed largely sets the cost of every search. We present a controlled comparison of how to build that module. Using o","authors_text":"Giovanni Beltrame, Mark Bong, Simon Roy","cross_cats":["cs.IR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-30T17:35:06Z","title":"Finding Change in Satellite Archives from Text: How to Combine Before-and-After Images Efficiently"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.28571","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:d8aea1a667363aa66ba1a231e612d1cdf085890a2e0f7cd7d1d26704c74562de","target":"record","created_at":"2026-07-31T01:38:35Z","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":"8142ec68e51ebe8f0f01ed02085bb3a74ac295557a6020fd330aff0b1e9b0e08","cross_cats_sorted":["cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-07-30T17:35:06Z","title_canon_sha256":"446b62bcf55e3258fb877a83e3090349430f45897a9a067d76e633fa8e5d66a8"},"schema_version":"1.0","source":{"id":"2607.28571","kind":"arxiv","version":1}},"canonical_sha256":"7a6a8ad1447f1e17d7f2b9bf90839588ecc083cfb5fd68fa756f26e19a52fab3","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a6a8ad1447f1e17d7f2b9bf90839588ecc083cfb5fd68fa756f26e19a52fab3","first_computed_at":"2026-07-31T01:38:35.197295Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:38:35.197295Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.28571","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8aea1a667363aa66ba1a231e612d1cdf085890a2e0f7cd7d1d26704c74562de","sha256:48da35ff7274f6b690409f6cc6e8297932cb9ded5b73ce237b5ecefa22cce717"],"state_sha256":"cea15f73887adf1bc3670f3cdb965cb51f666fa745f4834c01798520db65577e"}