{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:E2BTEP53DRVGN5DUHC5PBPVOJG","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":"99a1098937715ccaffdb3375c7fb69ef6cd929802244645b09db59793e405a25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-13T15:51:20Z","title_canon_sha256":"39f0bd2fa1a1ec68fc39923c36db26adedb901ff25fdc9845b82ac26c654ad41"},"schema_version":"1.0","source":{"id":"1610.04140","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04140","created_at":"2026-05-18T01:02:21Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04140v1","created_at":"2026-05-18T01:02:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04140","created_at":"2026-05-18T01:02:21Z"},{"alias_kind":"pith_short_12","alias_value":"E2BTEP53DRVG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"E2BTEP53DRVGN5DU","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"E2BTEP53","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:c43951b72cd6cbae48abedbf8529fb3abbd9f38975c85cb6227db4d36f439ed3","target":"graph","created_at":"2026-05-18T01:02:21Z","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":"In a radio interferometer, the determination of geometrical antenna positions relies on accurate calibration of the dry and wet delay of the atmosphere above each antenna. For the Atacama Large Millimeter/Submillimeter Array (ALMA), which has baseline lengths up to 16 kilometers, the geography of the site forces the height above mean sea level of the more distant antenna pads to be significantly lower than the central array. Thus, both the ground level meteorological values and the total water column can be quite different between antennas in the extended configurations. During 2015, a network","authors_text":"Catherine Vlahakis, David Rabanus, Dominique Broguiere, Ed B. Fomalont, Neil Phillips, Robert Lucas, Todd R. Hunter, William R. F. Dent","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-13T15:51:20Z","title":"Analysis of antenna position measurements and weather station network data during the ALMA Long Baseline Campaign of 2015"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04140","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":"sha256:7d076d7950849ff21c4d190ef90ae54be2a8380363a17e57e0206c47c1bbc176","target":"record","created_at":"2026-05-18T01:02:21Z","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":"99a1098937715ccaffdb3375c7fb69ef6cd929802244645b09db59793e405a25","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-10-13T15:51:20Z","title_canon_sha256":"39f0bd2fa1a1ec68fc39923c36db26adedb901ff25fdc9845b82ac26c654ad41"},"schema_version":"1.0","source":{"id":"1610.04140","kind":"arxiv","version":1}},"canonical_sha256":"2683323fbb1c6a66f47438baf0beae49a1ed50d4a54020b4ecbeeaf675d2c363","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2683323fbb1c6a66f47438baf0beae49a1ed50d4a54020b4ecbeeaf675d2c363","first_computed_at":"2026-05-18T01:02:21.803399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:21.803399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YLsVXd1+F8u34uWkDBL1e6vqujlac8bkzt9+NFpVgh48KZhkoNfm1M+Hv9rJlg850cRQCl0rzcsG6iaLv+o6Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:21.804333Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.04140","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d076d7950849ff21c4d190ef90ae54be2a8380363a17e57e0206c47c1bbc176","sha256:c43951b72cd6cbae48abedbf8529fb3abbd9f38975c85cb6227db4d36f439ed3"],"state_sha256":"745ff15be437a2587e95db78b78f8de4f2e2ae4cbf7c3b42072156fff6df2332"}