{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:T52RNPHEFODSPLE2ALTZOHTMVP","short_pith_number":"pith:T52RNPHE","canonical_record":{"source":{"id":"1807.05733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-16T08:54:54Z","cross_cats_sorted":[],"title_canon_sha256":"2b13f3d928366bea59047e53cf16396eed131ee68856a199c63a4667b8ed1a6f","abstract_canon_sha256":"f2c84a4d0acaf8add62eaea95d22f005f4e9ddc9bbb152f970d37407cc8ec00f"},"schema_version":"1.0"},"canonical_sha256":"9f7516bce42b8727ac9a02e7971e6cabcb8923b3cdb99994890852a2a4a4b079","source":{"kind":"arxiv","id":"1807.05733","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05733","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05733v1","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05733","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"pith_short_12","alias_value":"T52RNPHEFODS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T52RNPHEFODSPLE2","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T52RNPHE","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:T52RNPHEFODSPLE2ALTZOHTMVP","target":"record","payload":{"canonical_record":{"source":{"id":"1807.05733","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-16T08:54:54Z","cross_cats_sorted":[],"title_canon_sha256":"2b13f3d928366bea59047e53cf16396eed131ee68856a199c63a4667b8ed1a6f","abstract_canon_sha256":"f2c84a4d0acaf8add62eaea95d22f005f4e9ddc9bbb152f970d37407cc8ec00f"},"schema_version":"1.0"},"canonical_sha256":"9f7516bce42b8727ac9a02e7971e6cabcb8923b3cdb99994890852a2a4a4b079","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:42.713762Z","signature_b64":"PJVw+qDN3ep/zsp5d7hu3LxPayiHCqDwkKt83iL/sjp6C4v27aInDF2/xkgf+pYc/EzGOy3A+IfJOaJcgrJeDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9f7516bce42b8727ac9a02e7971e6cabcb8923b3cdb99994890852a2a4a4b079","last_reissued_at":"2026-05-18T00:10:42.713198Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:42.713198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.05733","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":"2026-05-18T00:10:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W10Dm8uLlWBBS/e4zpByi45FAcSqFxw5XemoZdiSRu+hYrML/PbddCOOg8oEdqNkSo0cZwxYa98cpXBpLlShDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T00:02:03.767612Z"},"content_sha256":"dc88231a3032578bfff5cf49cf5c7bc891e3ade9d7b845930970f5f720012f95","schema_version":"1.0","event_id":"sha256:dc88231a3032578bfff5cf49cf5c7bc891e3ade9d7b845930970f5f720012f95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:T52RNPHEFODSPLE2ALTZOHTMVP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pipeline Collector: gathering performance data for distributed astronomical pipelines","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Alexandar P. Mechev, Aske Plaat, Huib T. Intema, Huub J.A. R\\\"ottgering, J.B. Raymond Oonk","submitted_at":"2018-07-16T08:54:54Z","abstract_excerpt":"Modern astronomical data processing requires complex software pipelines to process ever growing datasets. For radio astronomy, these pipelines have become so large that they need to be distributed across a computational cluster. This makes it difficult to monitor the performance of each pipeline step. To gain insight into the performance of each step, a performance monitoring utility needs to be integrated with the pipeline execution. In this work we have developed such a utility and integrated it with the calibration pipeline of the Low Frequency Array, LOFAR, a leading radio telescope. We te"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05733","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":""},"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":"2026-05-18T00:10:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XIBOWGSJk2DoC0EfDhBEkbuRsiojmHpQSjvqVTNnI/wKyc1Kv/YSrdcbBpHJQbPC7hLSfIQJHzxqvqLglc7RAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T00:02:03.768012Z"},"content_sha256":"60cea78fe6f6e35fb26b6c6b81cbabecf53e26c2faf643a26494006fe7a0147a","schema_version":"1.0","event_id":"sha256:60cea78fe6f6e35fb26b6c6b81cbabecf53e26c2faf643a26494006fe7a0147a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T52RNPHEFODSPLE2ALTZOHTMVP/bundle.json","state_url":"https://pith.science/pith/T52RNPHEFODSPLE2ALTZOHTMVP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T52RNPHEFODSPLE2ALTZOHTMVP/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":"2026-05-30T00:02:03Z","links":{"resolver":"https://pith.science/pith/T52RNPHEFODSPLE2ALTZOHTMVP","bundle":"https://pith.science/pith/T52RNPHEFODSPLE2ALTZOHTMVP/bundle.json","state":"https://pith.science/pith/T52RNPHEFODSPLE2ALTZOHTMVP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T52RNPHEFODSPLE2ALTZOHTMVP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:T52RNPHEFODSPLE2ALTZOHTMVP","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":"f2c84a4d0acaf8add62eaea95d22f005f4e9ddc9bbb152f970d37407cc8ec00f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-16T08:54:54Z","title_canon_sha256":"2b13f3d928366bea59047e53cf16396eed131ee68856a199c63a4667b8ed1a6f"},"schema_version":"1.0","source":{"id":"1807.05733","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05733","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05733v1","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05733","created_at":"2026-05-18T00:10:42Z"},{"alias_kind":"pith_short_12","alias_value":"T52RNPHEFODS","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"T52RNPHEFODSPLE2","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"T52RNPHE","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:60cea78fe6f6e35fb26b6c6b81cbabecf53e26c2faf643a26494006fe7a0147a","target":"graph","created_at":"2026-05-18T00:10:42Z","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"},"paper":{"abstract_excerpt":"Modern astronomical data processing requires complex software pipelines to process ever growing datasets. For radio astronomy, these pipelines have become so large that they need to be distributed across a computational cluster. This makes it difficult to monitor the performance of each pipeline step. To gain insight into the performance of each step, a performance monitoring utility needs to be integrated with the pipeline execution. In this work we have developed such a utility and integrated it with the calibration pipeline of the Low Frequency Array, LOFAR, a leading radio telescope. We te","authors_text":"Alexandar P. Mechev, Aske Plaat, Huib T. Intema, Huub J.A. R\\\"ottgering, J.B. Raymond Oonk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-16T08:54:54Z","title":"Pipeline Collector: gathering performance data for distributed astronomical pipelines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05733","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:dc88231a3032578bfff5cf49cf5c7bc891e3ade9d7b845930970f5f720012f95","target":"record","created_at":"2026-05-18T00:10:42Z","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":"f2c84a4d0acaf8add62eaea95d22f005f4e9ddc9bbb152f970d37407cc8ec00f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-07-16T08:54:54Z","title_canon_sha256":"2b13f3d928366bea59047e53cf16396eed131ee68856a199c63a4667b8ed1a6f"},"schema_version":"1.0","source":{"id":"1807.05733","kind":"arxiv","version":1}},"canonical_sha256":"9f7516bce42b8727ac9a02e7971e6cabcb8923b3cdb99994890852a2a4a4b079","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9f7516bce42b8727ac9a02e7971e6cabcb8923b3cdb99994890852a2a4a4b079","first_computed_at":"2026-05-18T00:10:42.713198Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:42.713198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PJVw+qDN3ep/zsp5d7hu3LxPayiHCqDwkKt83iL/sjp6C4v27aInDF2/xkgf+pYc/EzGOy3A+IfJOaJcgrJeDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:42.713762Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.05733","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc88231a3032578bfff5cf49cf5c7bc891e3ade9d7b845930970f5f720012f95","sha256:60cea78fe6f6e35fb26b6c6b81cbabecf53e26c2faf643a26494006fe7a0147a"],"state_sha256":"01549b9526211adf4e711fb698daa60db3f8f6d3870555340a5fbae187fde0d8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sQsVyKJZpjhhHP5msUoJ6ekD9Iztppt94UhcfcaZeg9+7mHKy+LF4qdNXd+AvTIg5iHvysccV626J7DEb6x+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T00:02:03.770457Z","bundle_sha256":"229d10905da00e713566228d96b592cdb05c28fc08f4645558cdb086915cbe26"}}