{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MCHWLONCSPIOALNKRG5LKFTOAJ","short_pith_number":"pith:MCHWLONC","canonical_record":{"source":{"id":"2505.18643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-05-24T11:08:41Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"57b197fe841eb475350c1daab956edfe9d17142250d78e343e77737e170b009b","abstract_canon_sha256":"5e72e6e4b9ce8eee3a702918394ad40fdc362d33f1391bb4f91c7f86fe8d4d64"},"schema_version":"1.0"},"canonical_sha256":"608f65b9a293d0e02daa89bab5166e026f3466d17689f266c8b73689937bcd9a","source":{"kind":"arxiv","id":"2505.18643","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18643","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18643v1","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18643","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"MCHWLONCSPIO","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"MCHWLONCSPIOALNK","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"MCHWLONC","created_at":"2026-07-05T11:09:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MCHWLONCSPIOALNKRG5LKFTOAJ","target":"record","payload":{"canonical_record":{"source":{"id":"2505.18643","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-05-24T11:08:41Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"57b197fe841eb475350c1daab956edfe9d17142250d78e343e77737e170b009b","abstract_canon_sha256":"5e72e6e4b9ce8eee3a702918394ad40fdc362d33f1391bb4f91c7f86fe8d4d64"},"schema_version":"1.0"},"canonical_sha256":"608f65b9a293d0e02daa89bab5166e026f3466d17689f266c8b73689937bcd9a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:16.933906Z","signature_b64":"OA66Q4ccRxl1DMYIXm9cYsqPYpp84y3wP7mjdLGHVKXstBI6aWvyD909oe8nJj8UyIfNPNRcv8HOBctkjgv6CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"608f65b9a293d0e02daa89bab5166e026f3466d17689f266c8b73689937bcd9a","last_reissued_at":"2026-07-05T11:09:16.933494Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:16.933494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.18643","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":"2026-07-05T11:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dg7xVi50YzPxkkZPxEc2O5qV0J0TZDNk4hEuAH0fQpti4Rvz/9FkHHWE1VYHLTtUAO2Zh32miXEAaalIHOp1BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T07:35:21.866566Z"},"content_sha256":"ef11072bbfb571ece894b98061108900728f405839360eb667ff107772a54fdb","schema_version":"1.0","event_id":"sha256:ef11072bbfb571ece894b98061108900728f405839360eb667ff107772a54fdb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MCHWLONCSPIOALNKRG5LKFTOAJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Anomaly detection in radio galaxy data with trainable COSFIRE filters","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"astro-ph.IM","authors_text":"George Azzopardi, Stefan J. Wijnholds, Steven Ndung'u, Trienko Grobler","submitted_at":"2025-05-24T11:08:41Z","abstract_excerpt":"Detecting anomalies in radio astronomy is challenging due to the vast amounts of data and the rarity of labeled anomalous examples. Addressing this challenge requires efficient methods capable of identifying unusual radio galaxy morphologies without relying on extensive supervision. This work introduces an innovative approach to anomaly detection based on morphological characteristics of the radio sources using trainable COSFIRE (Combination of Shifted Filter Responses) filters as an efficient alternative to complex deep learning methods. The framework integrates COSFIRE descriptors with an un"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18643","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/2505.18643/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":"2026-07-05T11:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jPkaqws+/jmRM/1T16FTEkLahkTvezAKBe4xAcDDt6loTp6ni0LK8lT/sraxnJmimyjjSnX2TnoBQfBYialxAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-18T07:35:21.866939Z"},"content_sha256":"964b63aef84850e6db43c99070bd5a997dd3b3cd1d32225159d20e09989d3e1c","schema_version":"1.0","event_id":"sha256:964b63aef84850e6db43c99070bd5a997dd3b3cd1d32225159d20e09989d3e1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/bundle.json","state_url":"https://pith.science/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/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":"2026-07-18T07:35:21Z","links":{"resolver":"https://pith.science/pith/MCHWLONCSPIOALNKRG5LKFTOAJ","bundle":"https://pith.science/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/bundle.json","state":"https://pith.science/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MCHWLONCSPIOALNKRG5LKFTOAJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MCHWLONCSPIOALNKRG5LKFTOAJ","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":"5e72e6e4b9ce8eee3a702918394ad40fdc362d33f1391bb4f91c7f86fe8d4d64","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-05-24T11:08:41Z","title_canon_sha256":"57b197fe841eb475350c1daab956edfe9d17142250d78e343e77737e170b009b"},"schema_version":"1.0","source":{"id":"2505.18643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18643","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18643v1","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18643","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"MCHWLONCSPIO","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"MCHWLONCSPIOALNK","created_at":"2026-07-05T11:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"MCHWLONC","created_at":"2026-07-05T11:09:16Z"}],"graph_snapshots":[{"event_id":"sha256:964b63aef84850e6db43c99070bd5a997dd3b3cd1d32225159d20e09989d3e1c","target":"graph","created_at":"2026-07-05T11:09:16Z","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/2505.18643/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Detecting anomalies in radio astronomy is challenging due to the vast amounts of data and the rarity of labeled anomalous examples. Addressing this challenge requires efficient methods capable of identifying unusual radio galaxy morphologies without relying on extensive supervision. This work introduces an innovative approach to anomaly detection based on morphological characteristics of the radio sources using trainable COSFIRE (Combination of Shifted Filter Responses) filters as an efficient alternative to complex deep learning methods. The framework integrates COSFIRE descriptors with an un","authors_text":"George Azzopardi, Stefan J. Wijnholds, Steven Ndung'u, Trienko Grobler","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-05-24T11:08:41Z","title":"Anomaly detection in radio galaxy data with trainable COSFIRE filters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18643","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:ef11072bbfb571ece894b98061108900728f405839360eb667ff107772a54fdb","target":"record","created_at":"2026-07-05T11:09:16Z","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":"5e72e6e4b9ce8eee3a702918394ad40fdc362d33f1391bb4f91c7f86fe8d4d64","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-05-24T11:08:41Z","title_canon_sha256":"57b197fe841eb475350c1daab956edfe9d17142250d78e343e77737e170b009b"},"schema_version":"1.0","source":{"id":"2505.18643","kind":"arxiv","version":1}},"canonical_sha256":"608f65b9a293d0e02daa89bab5166e026f3466d17689f266c8b73689937bcd9a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"608f65b9a293d0e02daa89bab5166e026f3466d17689f266c8b73689937bcd9a","first_computed_at":"2026-07-05T11:09:16.933494Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:09:16.933494Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OA66Q4ccRxl1DMYIXm9cYsqPYpp84y3wP7mjdLGHVKXstBI6aWvyD909oe8nJj8UyIfNPNRcv8HOBctkjgv6CA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:09:16.933906Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.18643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef11072bbfb571ece894b98061108900728f405839360eb667ff107772a54fdb","sha256:964b63aef84850e6db43c99070bd5a997dd3b3cd1d32225159d20e09989d3e1c"],"state_sha256":"f507939c9e6fa2df5e3b4ed2a90314f19cefc7a3a414dc509478a6cae8dd1ccd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DCmdZcwcZXs3p8bGzFFTLhgbTK0G054X1ED7vwO3vweaYfwGvK3KVwq69nmM4IGO5x8Tl8hOPN6VDSSD7mt5AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-18T07:35:21.869038Z","bundle_sha256":"b51ad73cf55f1cc3c2c8451752b346c29398b34d17100563198ddca49e431822"}}