{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:JFHFBD7CEHM5KC4RTJVK2R5T43","short_pith_number":"pith:JFHFBD7C","canonical_record":{"source":{"id":"2504.20723","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-29T13:02:28Z","cross_cats_sorted":[],"title_canon_sha256":"37096f2f82d8bd96dcc6e4260045ee23ff5c256fe36258dc2fe76bb003ebc7e2","abstract_canon_sha256":"3e060e2a715558236784ea908c12b95c5f0c215d370f82463044fbad90310f8c"},"schema_version":"1.0"},"canonical_sha256":"494e508fe221d9d50b919a6aad47b3e6ef65c19397b812f98b0c25fd4002f2a4","source":{"kind":"arxiv","id":"2504.20723","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.20723","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"arxiv_version","alias_value":"2504.20723v1","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20723","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_12","alias_value":"JFHFBD7CEHM5","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_16","alias_value":"JFHFBD7CEHM5KC4R","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_8","alias_value":"JFHFBD7C","created_at":"2026-07-05T11:19:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:JFHFBD7CEHM5KC4RTJVK2R5T43","target":"record","payload":{"canonical_record":{"source":{"id":"2504.20723","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-29T13:02:28Z","cross_cats_sorted":[],"title_canon_sha256":"37096f2f82d8bd96dcc6e4260045ee23ff5c256fe36258dc2fe76bb003ebc7e2","abstract_canon_sha256":"3e060e2a715558236784ea908c12b95c5f0c215d370f82463044fbad90310f8c"},"schema_version":"1.0"},"canonical_sha256":"494e508fe221d9d50b919a6aad47b3e6ef65c19397b812f98b0c25fd4002f2a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:19:06.744990Z","signature_b64":"ljdPv4sOu8uDD24c3uk3aIZXjB27heg2krBXSujoeLHmEWv9b0AO6wIJKF1DmeWMUtWKA4LyAZS2dF7ZApjHBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"494e508fe221d9d50b919a6aad47b3e6ef65c19397b812f98b0c25fd4002f2a4","last_reissued_at":"2026-07-05T11:19:06.744523Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:19:06.744523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.20723","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":"2026-07-05T11:19:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wViebHxvSRVhhGITeVLypW/uTGdZoFjEmedo2C+wdErcUZD8wKlLTyVQk8fy8Q9ff8YcoVyrkfkd+HyZXKdiBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:44:43.700203Z"},"content_sha256":"de9be0ade26ddf8df0a9b661d1c51b054dce5d3429dea73c7ee965146e2df9bd","schema_version":"1.0","event_id":"sha256:de9be0ade26ddf8df0a9b661d1c51b054dce5d3429dea73c7ee965146e2df9bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:JFHFBD7CEHM5KC4RTJVK2R5T43","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Cosmology from LOFAR Two-metre Sky Survey Data Release 2: Counts-in-Cells Statistics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Caroline Heneka, Catherine L. Hale, Dominik J. Schwarz, Jinglan Zheng, Lukas B\\\"ohme, Morteza Pashapour-Ahmadabadi, Prabhakar Tiwari, Thilo M. Siewert","submitted_at":"2025-04-29T13:02:28Z","abstract_excerpt":"We investigate the statistical distribution of source counts-in-cells in the second data release of the LOFAR Two-Metre Sky Survey (LoTSS-DR2) and we test a computationally cheap method based on the counts-in-cells to estimate the two-point correlation function. We compare three stochastic models for the counts-in-cells which result in a Poisson distribution, a compound Poisson distribution, and a negative binomial distribution. By analysing the variance of counts-in-cells for various cell sizes, we fit the reduced normalised variance to a single power-law model representing the angular two-po"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20723","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/2504.20723/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":"2026-07-05T11:19:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uks++4PbXBXmWsx00oTEPaAGTLDWAB/t8H+urTW2JtMF4YZKVIsZgL5O9B7B5tNSm+mOn+QflYK3gFFf6YEfCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:44:43.701091Z"},"content_sha256":"fad21e51e32ad61c76f68ef4714698a4d5a6a223d1042db3b10a5d9c1b079f0f","schema_version":"1.0","event_id":"sha256:fad21e51e32ad61c76f68ef4714698a4d5a6a223d1042db3b10a5d9c1b079f0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/bundle.json","state_url":"https://pith.science/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/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":"2026-08-09T08:44:43Z","links":{"resolver":"https://pith.science/pith/JFHFBD7CEHM5KC4RTJVK2R5T43","bundle":"https://pith.science/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/bundle.json","state":"https://pith.science/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JFHFBD7CEHM5KC4RTJVK2R5T43/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:JFHFBD7CEHM5KC4RTJVK2R5T43","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":"3e060e2a715558236784ea908c12b95c5f0c215d370f82463044fbad90310f8c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-29T13:02:28Z","title_canon_sha256":"37096f2f82d8bd96dcc6e4260045ee23ff5c256fe36258dc2fe76bb003ebc7e2"},"schema_version":"1.0","source":{"id":"2504.20723","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.20723","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"arxiv_version","alias_value":"2504.20723v1","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20723","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_12","alias_value":"JFHFBD7CEHM5","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_16","alias_value":"JFHFBD7CEHM5KC4R","created_at":"2026-07-05T11:19:06Z"},{"alias_kind":"pith_short_8","alias_value":"JFHFBD7C","created_at":"2026-07-05T11:19:06Z"}],"graph_snapshots":[{"event_id":"sha256:fad21e51e32ad61c76f68ef4714698a4d5a6a223d1042db3b10a5d9c1b079f0f","target":"graph","created_at":"2026-07-05T11:19:06Z","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/2504.20723/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the statistical distribution of source counts-in-cells in the second data release of the LOFAR Two-Metre Sky Survey (LoTSS-DR2) and we test a computationally cheap method based on the counts-in-cells to estimate the two-point correlation function. We compare three stochastic models for the counts-in-cells which result in a Poisson distribution, a compound Poisson distribution, and a negative binomial distribution. By analysing the variance of counts-in-cells for various cell sizes, we fit the reduced normalised variance to a single power-law model representing the angular two-po","authors_text":"Caroline Heneka, Catherine L. Hale, Dominik J. Schwarz, Jinglan Zheng, Lukas B\\\"ohme, Morteza Pashapour-Ahmadabadi, Prabhakar Tiwari, Thilo M. Siewert","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-29T13:02:28Z","title":"Cosmology from LOFAR Two-metre Sky Survey Data Release 2: Counts-in-Cells Statistics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20723","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:de9be0ade26ddf8df0a9b661d1c51b054dce5d3429dea73c7ee965146e2df9bd","target":"record","created_at":"2026-07-05T11:19:06Z","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":"3e060e2a715558236784ea908c12b95c5f0c215d370f82463044fbad90310f8c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-29T13:02:28Z","title_canon_sha256":"37096f2f82d8bd96dcc6e4260045ee23ff5c256fe36258dc2fe76bb003ebc7e2"},"schema_version":"1.0","source":{"id":"2504.20723","kind":"arxiv","version":1}},"canonical_sha256":"494e508fe221d9d50b919a6aad47b3e6ef65c19397b812f98b0c25fd4002f2a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"494e508fe221d9d50b919a6aad47b3e6ef65c19397b812f98b0c25fd4002f2a4","first_computed_at":"2026-07-05T11:19:06.744523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:19:06.744523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ljdPv4sOu8uDD24c3uk3aIZXjB27heg2krBXSujoeLHmEWv9b0AO6wIJKF1DmeWMUtWKA4LyAZS2dF7ZApjHBA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:19:06.744990Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.20723","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de9be0ade26ddf8df0a9b661d1c51b054dce5d3429dea73c7ee965146e2df9bd","sha256:fad21e51e32ad61c76f68ef4714698a4d5a6a223d1042db3b10a5d9c1b079f0f"],"state_sha256":"249af2fe9291b0e56cb8d505c6380dd766aab319a2ee8a4cfdbc586fde46c9c6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VzB7sUPzYloMPDVy2K0dPnve+r/Nhh453YEPk47RCyRhHr4TEmxNmn/J/y2nPqMfBsrGtCjBjpGFQWCuvZxtCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T08:44:43.707610Z","bundle_sha256":"1c96779df37b1bddb7ad2d785fc173d72490d0c0805eb9e450c72e23c48028b8"}}