{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:2SWRT5WGP7AJGFO2WMOSQ5TEFI","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":"e9e6169e4e007af213d72b2fb9bf6c13fc20ce83f2a298e39bc3933ad398a4e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-04-08T15:15:18Z","title_canon_sha256":"4556df3cdd8d4bd5393409da986d8b838c1b55f0d80951b0b2cfc07cf9641a31"},"schema_version":"1.0","source":{"id":"2204.04115","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.04115","created_at":"2026-07-05T04:43:42Z"},{"alias_kind":"arxiv_version","alias_value":"2204.04115v1","created_at":"2026-07-05T04:43:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.04115","created_at":"2026-07-05T04:43:42Z"},{"alias_kind":"pith_short_12","alias_value":"2SWRT5WGP7AJ","created_at":"2026-07-05T04:43:42Z"},{"alias_kind":"pith_short_16","alias_value":"2SWRT5WGP7AJGFO2","created_at":"2026-07-05T04:43:42Z"},{"alias_kind":"pith_short_8","alias_value":"2SWRT5WG","created_at":"2026-07-05T04:43:42Z"}],"graph_snapshots":[{"event_id":"sha256:6e72ffa663e40171788a396efb4d3cc7cda385b836b2bcb3720bd128005a06b8","target":"graph","created_at":"2026-07-05T04:43:42Z","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/2204.04115/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"MeerTime is a five-year Large Survey Project to time pulsars with MeerKAT, the 64-dish South African precursor to the Square Kilometre Array. The science goals for the programme include timing millisecond pulsars (MSPs) to high precision (< 1 $\\mu$s) to study the Galactic MSP population and to contribute to global efforts to detect nanohertz gravitational waves with the International Pulsar Timing Array (IPTA). In order to plan for the remainder of the programme and to use the allocated time most efficiently, we have conducted an initial census with the MeerKAT \"L-band\" receiver of 189 MSPs vi","authors_text":"A. D. Cameron, A. Karastergiou, A. Parthasarathy, D. J. Reardon, F. Camilo, G. Theureau, M. Bailes, M. Geyer, M. Keith, M. Kramer, M. Serylak, M. Shamohammadi, M. T. Miles, N. D. R. Bhat, R. M. Shannon, R. Spiewak, S. Buchner, S. Johnston, V. Venkatraman Krishnan, W. van Straten","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-04-08T15:15:18Z","title":"The MeerTime Pulsar Timing Array -- A Census of Emission Properties and Timing Potential"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.04115","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:e4062b93425f2140897d45497d987d5473be549a7c2a9ae8bb6ed6b0c3cbaf1f","target":"record","created_at":"2026-07-05T04:43:42Z","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":"e9e6169e4e007af213d72b2fb9bf6c13fc20ce83f2a298e39bc3933ad398a4e7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-04-08T15:15:18Z","title_canon_sha256":"4556df3cdd8d4bd5393409da986d8b838c1b55f0d80951b0b2cfc07cf9641a31"},"schema_version":"1.0","source":{"id":"2204.04115","kind":"arxiv","version":1}},"canonical_sha256":"d4ad19f6c67fc09315dab31d2876642a3d96ee9e328bbf9def7ac7720966b46d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4ad19f6c67fc09315dab31d2876642a3d96ee9e328bbf9def7ac7720966b46d","first_computed_at":"2026-07-05T04:43:42.943801Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:43:42.943801Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rlx72X/zffSyorc0ZwlWXreCH338glZoHKstHITnLC3JNXKMLh1hflaz19eszrjNq9Po/jhNEny0+AxYO9GlDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:43:42.944303Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.04115","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e4062b93425f2140897d45497d987d5473be549a7c2a9ae8bb6ed6b0c3cbaf1f","sha256:6e72ffa663e40171788a396efb4d3cc7cda385b836b2bcb3720bd128005a06b8"],"state_sha256":"eba2f8517a60e1f03501d3d815713e8b54e90bc4abf9284f936241d915508307"}