{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:USDHXYK3F2NVPNPHDECQZ4G2I6","short_pith_number":"pith:USDHXYK3","schema_version":"1.0","canonical_sha256":"a4867be15b2e9b57b5e719050cf0da479b7cdb23ce982b23de571485650945b7","source":{"kind":"arxiv","id":"2402.09065","version":1},"attestation_state":"computed","paper":{"title":"The Thousand-Pulsar-Array programme on MeerKAT -- XII. Discovery of long-term pulse profile evolution in 7 young pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Basu, A. D. Cameron, A. Karastergiou, B. Posselt, L. S. Oswald, M. J. Keith, P. Weltevrede, S. Johnston, X. Song","submitted_at":"2024-02-14T10:22:58Z","abstract_excerpt":"A number of pulsars are known to have profile evolution on timescales of months, often correlated with spin-down rate changes. Here, we present the first result from 3 years of monitoring observations from MeerKAT as part of the Thousand Pulsar Array programme. This programme obtains high-fidelity pulse profiles for $\\sim$ 500 pulsars, which enabled the detection of subtle changes in seven sources not previously known to exhibit long-term profile evolution. A 2D Gaussian convolution is used to highlight correlated emission variability in both the pulse phase and observing epoch direction. Simu"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2402.09065","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-02-14T10:22:58Z","cross_cats_sorted":[],"title_canon_sha256":"e46c78988a935e82fe479d26db104c5f9c9fd12eb53f2d69c6dd773b0d451786","abstract_canon_sha256":"e1630d0c4c7f822cb31145f4bee7b6ce4b59b98c001091a46f696f26d96c37a7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:45:08.098375Z","signature_b64":"hmSTgeK2kdHBugiv6DrxHZ7neYagp+M9vAZRhJ7kUvI2cxXJ2XspbyvBstIarf8Ype8F0GH316huKW2HI/8FAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a4867be15b2e9b57b5e719050cf0da479b7cdb23ce982b23de571485650945b7","last_reissued_at":"2026-07-05T07:45:08.097958Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:45:08.097958Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Thousand-Pulsar-Array programme on MeerKAT -- XII. Discovery of long-term pulse profile evolution in 7 young pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Basu, A. D. Cameron, A. Karastergiou, B. Posselt, L. S. Oswald, M. J. Keith, P. Weltevrede, S. Johnston, X. Song","submitted_at":"2024-02-14T10:22:58Z","abstract_excerpt":"A number of pulsars are known to have profile evolution on timescales of months, often correlated with spin-down rate changes. Here, we present the first result from 3 years of monitoring observations from MeerKAT as part of the Thousand Pulsar Array programme. This programme obtains high-fidelity pulse profiles for $\\sim$ 500 pulsars, which enabled the detection of subtle changes in seven sources not previously known to exhibit long-term profile evolution. A 2D Gaussian convolution is used to highlight correlated emission variability in both the pulse phase and observing epoch direction. Simu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.09065","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2402.09065/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2402.09065","created_at":"2026-07-05T07:45:08.098018+00:00"},{"alias_kind":"arxiv_version","alias_value":"2402.09065v1","created_at":"2026-07-05T07:45:08.098018+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.09065","created_at":"2026-07-05T07:45:08.098018+00:00"},{"alias_kind":"pith_short_12","alias_value":"USDHXYK3F2NV","created_at":"2026-07-05T07:45:08.098018+00:00"},{"alias_kind":"pith_short_16","alias_value":"USDHXYK3F2NVPNPH","created_at":"2026-07-05T07:45:08.098018+00:00"},{"alias_kind":"pith_short_8","alias_value":"USDHXYK3","created_at":"2026-07-05T07:45:08.098018+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.02597","citing_title":"Probing Neutron Star Interiors and the Properties of Cold Ultra-dense Matter with the SKAO","ref_index":40,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6","json":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6.json","graph_json":"https://pith.science/api/pith-number/USDHXYK3F2NVPNPHDECQZ4G2I6/graph.json","events_json":"https://pith.science/api/pith-number/USDHXYK3F2NVPNPHDECQZ4G2I6/events.json","paper":"https://pith.science/paper/USDHXYK3"},"agent_actions":{"view_html":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6","download_json":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6.json","view_paper":"https://pith.science/paper/USDHXYK3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2402.09065&json=true","fetch_graph":"https://pith.science/api/pith-number/USDHXYK3F2NVPNPHDECQZ4G2I6/graph.json","fetch_events":"https://pith.science/api/pith-number/USDHXYK3F2NVPNPHDECQZ4G2I6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6/action/storage_attestation","attest_author":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6/action/author_attestation","sign_citation":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6/action/citation_signature","submit_replication":"https://pith.science/pith/USDHXYK3F2NVPNPHDECQZ4G2I6/action/replication_record"}},"created_at":"2026-07-05T07:45:08.098018+00:00","updated_at":"2026-07-05T07:45:08.098018+00:00"}