{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:DE22L5NTFURNNDAHCUOU56NBP3","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":"c3a5f1ef0ba0223a9968224aa85d60566801d67a8a51a3801a8dee7402d73238","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-04-23T18:24:37Z","title_canon_sha256":"d130fa117c50f796007b82be91b58b094d06ab6472f367b541c65bc8da701e36"},"schema_version":"1.0","source":{"id":"0904.3739","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.3739","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"arxiv_version","alias_value":"0904.3739v1","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.3739","created_at":"2026-05-18T02:13:57Z"},{"alias_kind":"pith_short_12","alias_value":"DE22L5NTFURN","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"DE22L5NTFURNNDAH","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"DE22L5NT","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:5da4738443d255055850faf93338995f6b6bc89bf2d23fd88a8f4372fa702608","target":"graph","created_at":"2026-05-18T02:13:57Z","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":"The Atacama Large Millimeter/submillimeter Array (ALMA) is an international radio telescope under construction in the Atacama Desert of northern Chile. ALMA is situated on a dry site at 5000 m elevation, allowing excellent atmospheric transmission over the instrument wavelength range of 0.3 to 10 mm. ALMA will consist of two arrays of high-precision antennas. One, of up to 64 12-m diameter antennas, is reconfigurable in multiple patterns ranging in size from 150 meters up to ~15 km. A second array is comprised of a set of four 12-m and twelve 7-m antennas operating in one of two closely packed","authors_text":"Alwyn Wootten, A. Richard Thompson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-04-23T18:24:37Z","title":"The Atacama Large Millimeter/submillimeter Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.3739","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":"sha256:03d27a3689098cf7849cac8c795189d2f60458edfcf1c28776c1da292ba7a072","target":"record","created_at":"2026-05-18T02:13:57Z","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":"c3a5f1ef0ba0223a9968224aa85d60566801d67a8a51a3801a8dee7402d73238","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2009-04-23T18:24:37Z","title_canon_sha256":"d130fa117c50f796007b82be91b58b094d06ab6472f367b541c65bc8da701e36"},"schema_version":"1.0","source":{"id":"0904.3739","kind":"arxiv","version":1}},"canonical_sha256":"1935a5f5b32d22d68c07151d4ef9a17edfb9521c5566f6a6bb0297a1278d899a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1935a5f5b32d22d68c07151d4ef9a17edfb9521c5566f6a6bb0297a1278d899a","first_computed_at":"2026-05-18T02:13:57.703437Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:13:57.703437Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"chlYDHwosbbFic5GCnkg92j8H+QgeSbh6tu0eECZ485zPLPhDZZZQvCqonMJ3YOYK2KWPV/ZyxxVB0mgnuk+Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:13:57.704161Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.3739","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03d27a3689098cf7849cac8c795189d2f60458edfcf1c28776c1da292ba7a072","sha256:5da4738443d255055850faf93338995f6b6bc89bf2d23fd88a8f4372fa702608"],"state_sha256":"a5d067b81da449f13536217abb49204b364d94b439397c6b71f6f8d4b68520c0"}