{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:A46IHXADPUWCLIV5HCZ6GNL3JN","short_pith_number":"pith:A46IHXAD","canonical_record":{"source":{"id":"2009.05797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-09-12T14:05:30Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"c43571c4ea96bb91aa798224bca17462f88a3ce0ec6da26b2c46377cd8489791","abstract_canon_sha256":"3f239ec5d546158b12b62664ff0dd1007b220444e99e031888084dffe17bf754"},"schema_version":"1.0"},"canonical_sha256":"073c83dc037d2c25a2bd38b3e3357b4b42798a0a4234b44ffc70cea2cbc48793","source":{"kind":"arxiv","id":"2009.05797","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.05797","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"arxiv_version","alias_value":"2009.05797v1","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.05797","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_12","alias_value":"A46IHXADPUWC","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_16","alias_value":"A46IHXADPUWCLIV5","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_8","alias_value":"A46IHXAD","created_at":"2026-07-05T03:22:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:A46IHXADPUWCLIV5HCZ6GNL3JN","target":"record","payload":{"canonical_record":{"source":{"id":"2009.05797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-09-12T14:05:30Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"c43571c4ea96bb91aa798224bca17462f88a3ce0ec6da26b2c46377cd8489791","abstract_canon_sha256":"3f239ec5d546158b12b62664ff0dd1007b220444e99e031888084dffe17bf754"},"schema_version":"1.0"},"canonical_sha256":"073c83dc037d2c25a2bd38b3e3357b4b42798a0a4234b44ffc70cea2cbc48793","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:22:19.757596Z","signature_b64":"uA4Kqbmb07LgUI23I6akzOEtOFJ5ou0tYsKIro9glYGFrVGgLhch5gs8A58FQqFALUBmrrIYazcuJcmvAbaKCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"073c83dc037d2c25a2bd38b3e3357b4b42798a0a4234b44ffc70cea2cbc48793","last_reissued_at":"2026-07-05T03:22:19.757147Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:22:19.757147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2009.05797","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:22:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FogU+YF8jlga9rz4qtHpCMudIPA1BWpOia7Eu9KNar/uFHenWB5OwJ2pUiCWI2RS8Ld3PftNDBvxvo0q5EobBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:46:12.370322Z"},"content_sha256":"46a65a7df62ab62ecce47bad199064109ed0c973662573e402c427cf681b38e3","schema_version":"1.0","event_id":"sha256:46a65a7df62ab62ecce47bad199064109ed0c973662573e402c427cf681b38e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:A46IHXADPUWCLIV5HCZ6GNL3JN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Thousand-Pulsar-Array programme on MeerKAT IV: Polarisation properties of young, energetic pulsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"A. Jameson, A. Karastergiou, A. Parthasarathy, B. V. Hugo, D. J. Reardon, E. D. Barr, F. Camilo, M. Bailes, M. Geyer, M. J. Keith, M. Kramer, M. Serylak, P. Weltevrede, R. M. Shannon, R. Spiewak, S. Buchner, S. Johnston, V. Venkatraman Krishnan, W. van Straten","submitted_at":"2020-09-12T14:05:30Z","abstract_excerpt":"We present observations of 35 high spin-down energy radio pulsars using the MeerKAT telescope. Polarisation profiles and associated parameters are also presented. We derive the geometry for a selection of pulsars which show interpulse emission. We point out that, in several cases, these radio pulsars should also be seen in $\\gamma$-rays but that improved radio timing is required to aid the high-energy detection. We discuss the relationship between the width of the radio profile and its high-energy detectability. Finally, we reflect on the correlation between the spin-down energy and the radio "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.05797","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/2009.05797/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:22:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1uU2txH8JP2/gI7j01NnRe6D9u1b6WSVmBG9JUz9p8ex3yAD+eX2HyiuXCL3d/6PwEyP+LK8b2ci5EIWvLC6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:46:12.370719Z"},"content_sha256":"d14d6fc7460006ad870c6692a83fb59cafe1c5a1d3952feb35d594786cb6b669","schema_version":"1.0","event_id":"sha256:d14d6fc7460006ad870c6692a83fb59cafe1c5a1d3952feb35d594786cb6b669"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/bundle.json","state_url":"https://pith.science/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T13:46:12Z","links":{"resolver":"https://pith.science/pith/A46IHXADPUWCLIV5HCZ6GNL3JN","bundle":"https://pith.science/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/bundle.json","state":"https://pith.science/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A46IHXADPUWCLIV5HCZ6GNL3JN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:A46IHXADPUWCLIV5HCZ6GNL3JN","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":"3f239ec5d546158b12b62664ff0dd1007b220444e99e031888084dffe17bf754","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-09-12T14:05:30Z","title_canon_sha256":"c43571c4ea96bb91aa798224bca17462f88a3ce0ec6da26b2c46377cd8489791"},"schema_version":"1.0","source":{"id":"2009.05797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.05797","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"arxiv_version","alias_value":"2009.05797v1","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.05797","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_12","alias_value":"A46IHXADPUWC","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_16","alias_value":"A46IHXADPUWCLIV5","created_at":"2026-07-05T03:22:19Z"},{"alias_kind":"pith_short_8","alias_value":"A46IHXAD","created_at":"2026-07-05T03:22:19Z"}],"graph_snapshots":[{"event_id":"sha256:d14d6fc7460006ad870c6692a83fb59cafe1c5a1d3952feb35d594786cb6b669","target":"graph","created_at":"2026-07-05T03:22:19Z","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/2009.05797/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present observations of 35 high spin-down energy radio pulsars using the MeerKAT telescope. Polarisation profiles and associated parameters are also presented. We derive the geometry for a selection of pulsars which show interpulse emission. We point out that, in several cases, these radio pulsars should also be seen in $\\gamma$-rays but that improved radio timing is required to aid the high-energy detection. We discuss the relationship between the width of the radio profile and its high-energy detectability. Finally, we reflect on the correlation between the spin-down energy and the radio ","authors_text":"A. Jameson, A. Karastergiou, A. Parthasarathy, B. V. Hugo, D. J. Reardon, E. D. Barr, F. Camilo, M. Bailes, M. Geyer, M. J. Keith, M. Kramer, M. Serylak, P. Weltevrede, R. M. Shannon, R. Spiewak, S. Buchner, S. Johnston, V. Venkatraman Krishnan, W. van Straten","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-09-12T14:05:30Z","title":"The Thousand-Pulsar-Array programme on MeerKAT IV: Polarisation properties of young, energetic pulsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.05797","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":"sha256:46a65a7df62ab62ecce47bad199064109ed0c973662573e402c427cf681b38e3","target":"record","created_at":"2026-07-05T03:22:19Z","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":"3f239ec5d546158b12b62664ff0dd1007b220444e99e031888084dffe17bf754","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-09-12T14:05:30Z","title_canon_sha256":"c43571c4ea96bb91aa798224bca17462f88a3ce0ec6da26b2c46377cd8489791"},"schema_version":"1.0","source":{"id":"2009.05797","kind":"arxiv","version":1}},"canonical_sha256":"073c83dc037d2c25a2bd38b3e3357b4b42798a0a4234b44ffc70cea2cbc48793","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"073c83dc037d2c25a2bd38b3e3357b4b42798a0a4234b44ffc70cea2cbc48793","first_computed_at":"2026-07-05T03:22:19.757147Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:22:19.757147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uA4Kqbmb07LgUI23I6akzOEtOFJ5ou0tYsKIro9glYGFrVGgLhch5gs8A58FQqFALUBmrrIYazcuJcmvAbaKCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:22:19.757596Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.05797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46a65a7df62ab62ecce47bad199064109ed0c973662573e402c427cf681b38e3","sha256:d14d6fc7460006ad870c6692a83fb59cafe1c5a1d3952feb35d594786cb6b669"],"state_sha256":"c5d18833c48ac5bf7f982662df4b1b3907a7d2f3b8106ea0fb67d7d36d8154fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CWZ+UZmcK2iYlIIKdAcL20dDUY3EgCJvUxRmomt2tYOE12i5Rn4A2k1OkErG+VLGItJgo/pJshgX5PDnrIPJDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:46:12.372656Z","bundle_sha256":"3e1dbbcf468d7a6a46018c5144374f1a5ed086659990a488b98dbd3031c075c6"}}