{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:ZQ5SJGUEE6LPU5N3AWPNAMGJCA","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":"9b3f789903fccf181a9d6e6ff3c0a607bf24578a1692086d88018c538158ade6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-09-12T19:25:38Z","title_canon_sha256":"29fd5a3a78e4b51846b346c78e94390c78a29c0047ea0000dde05b0c6d9b38e9"},"schema_version":"1.0","source":{"id":"astro-ph/0409274","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0409274","created_at":"2026-05-18T01:40:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0409274v1","created_at":"2026-05-18T01:40:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0409274","created_at":"2026-05-18T01:40:35Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ5SJGUEE6LP","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ5SJGUEE6LPU5N3","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ5SJGUE","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:61231f14a56e84627fecde03272000a72eb3208b5a1a15615c5d3f3825f234be","target":"graph","created_at":"2026-05-18T01:40:35Z","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"},"paper":{"abstract_excerpt":"The Square Kilometer Array (SKA) represents the next major, and natural, step in radio astronomical facilities, providing two orders of magnitude increase in collecting area over existing telescopes. In a series of meetings, starting in Groningen, the Netherlands (August 2002) and culminating in a `science retreat' in Leiden (November 2003), the SKA International Science Advisory Committee (ISAC), conceived of, and carried-out, a complete revision of the SKA science case (to appear in New Astronomy Reviews). This preface includes: (i) general introductory material, (ii) summaries of the key sc","authors_text":"C. Carilli (NRAO), S. Rawlings (Oxford)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2004-09-12T19:25:38Z","title":"Science with the Square Kilometer Array: Motivation, Key Science Projects, Standards and Assumptions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0409274","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":"sha256:2234687fbe591f37ea58f9729a086fa983a22f29704ff2435b90fbc605f68663","target":"record","created_at":"2026-05-18T01:40:35Z","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":"9b3f789903fccf181a9d6e6ff3c0a607bf24578a1692086d88018c538158ade6","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2004-09-12T19:25:38Z","title_canon_sha256":"29fd5a3a78e4b51846b346c78e94390c78a29c0047ea0000dde05b0c6d9b38e9"},"schema_version":"1.0","source":{"id":"astro-ph/0409274","kind":"arxiv","version":1}},"canonical_sha256":"cc3b249a842796fa75bb059ed030c910058b55786bf7f7b18ee1b33363b34d78","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc3b249a842796fa75bb059ed030c910058b55786bf7f7b18ee1b33363b34d78","first_computed_at":"2026-05-18T01:40:35.099882Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:35.099882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OfSABzVaYbW6DUXEwrVZcbYDQXC7foqmEybS7MZ5ErqitL5t7EcnZh0IDx6ptCPrQF9xRvfeMiFM+d1gbJCbAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:35.100445Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0409274","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2234687fbe591f37ea58f9729a086fa983a22f29704ff2435b90fbc605f68663","sha256:61231f14a56e84627fecde03272000a72eb3208b5a1a15615c5d3f3825f234be"],"state_sha256":"1cc133e97c94e16689124c21a863b111e15a02088aefb830495a72a27985a720"}