{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:YE6ESATGMRTXDCLX77C7MH5PSC","short_pith_number":"pith:YE6ESATG","canonical_record":{"source":{"id":"1112.1561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-12-07T13:52:37Z","cross_cats_sorted":[],"title_canon_sha256":"0459917df063938356e51dd51a6dc81e30b5df5dab985a2f0a2a09691e6bc873","abstract_canon_sha256":"cf8f397e00cd432246645e58941f7158c1b8da6d644a3239838dd1bcfab8d9f8"},"schema_version":"1.0"},"canonical_sha256":"c13c4902666467718977ffc5f61faf90a4018ea95556feb0239a317aba284b16","source":{"kind":"arxiv","id":"1112.1561","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1561","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1561v1","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1561","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"pith_short_12","alias_value":"YE6ESATGMRTX","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YE6ESATGMRTXDCLX","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YE6ESATG","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:YE6ESATGMRTXDCLX77C7MH5PSC","target":"record","payload":{"canonical_record":{"source":{"id":"1112.1561","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-12-07T13:52:37Z","cross_cats_sorted":[],"title_canon_sha256":"0459917df063938356e51dd51a6dc81e30b5df5dab985a2f0a2a09691e6bc873","abstract_canon_sha256":"cf8f397e00cd432246645e58941f7158c1b8da6d644a3239838dd1bcfab8d9f8"},"schema_version":"1.0"},"canonical_sha256":"c13c4902666467718977ffc5f61faf90a4018ea95556feb0239a317aba284b16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:15.784408Z","signature_b64":"qP8xfiv0dVUy2uzWbOuKMpSl4N5ohJrEk/JoD5j29xzuE8cN++Ivnoqgmzv6VGIMhUUJ2X0J7AvBuq9NvV8TCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c13c4902666467718977ffc5f61faf90a4018ea95556feb0239a317aba284b16","last_reissued_at":"2026-05-18T01:59:15.783581Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:15.783581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.1561","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":"2026-05-18T01:59:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V5vJYfwiNSntjiQyGGS9EFsyv8RPg8yS5W1zleimehkvMsAgduBi3hR4QlK293ZOGO8evmX42Ty6JCeAgs1vDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:52:55.333969Z"},"content_sha256":"14d26bd06f61b59bfb33c9c5554165c6e6860fa1b7a6cc12c03669ea9bbb85bd","schema_version":"1.0","event_id":"sha256:14d26bd06f61b59bfb33c9c5554165c6e6860fa1b7a6cc12c03669ea9bbb85bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:YE6ESATGMRTXDCLX77C7MH5PSC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Characterised Noise Hi source finder: Detecting Hi galaxies using a novel implementation of matched filtering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Russell Jurek","submitted_at":"2011-12-07T13:52:37Z","abstract_excerpt":"The spectral line datacubes obtained from the Square Kilometre Array (SKA) and its precursors, such as the Australian SKA Pathfinder (ASKAP), will be sufficiently large to necessitate automated detection and parametrisation of sources. Matched filtering is widely acknowledged as the best possible method for the automated detection of sources. This paper presents the Characterised Noise Hi (CNHI) source finder, which employs a novel implementation of matched filtering. This implementation is optimised for the 3-D nature of the planned Wide-field ASKAP Legacy L-band All- sky Blind surveY's (WALL"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1561","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":"2026-05-18T01:59:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H1p1l0LzRG6Ih2RRo4EHOhPqF4cGMMADFeQB/IWh6VfEVW7IrgknbElymblBIYEte7yQvjZaP3Yvpam/NzsvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T15:52:55.334641Z"},"content_sha256":"f21b467be0eb0e5dec8e5767052c1ebc053c4830727bc8f66a26b4b2f18319e6","schema_version":"1.0","event_id":"sha256:f21b467be0eb0e5dec8e5767052c1ebc053c4830727bc8f66a26b4b2f18319e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YE6ESATGMRTXDCLX77C7MH5PSC/bundle.json","state_url":"https://pith.science/pith/YE6ESATGMRTXDCLX77C7MH5PSC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YE6ESATGMRTXDCLX77C7MH5PSC/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":"2026-05-27T15:52:55Z","links":{"resolver":"https://pith.science/pith/YE6ESATGMRTXDCLX77C7MH5PSC","bundle":"https://pith.science/pith/YE6ESATGMRTXDCLX77C7MH5PSC/bundle.json","state":"https://pith.science/pith/YE6ESATGMRTXDCLX77C7MH5PSC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YE6ESATGMRTXDCLX77C7MH5PSC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:YE6ESATGMRTXDCLX77C7MH5PSC","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":"cf8f397e00cd432246645e58941f7158c1b8da6d644a3239838dd1bcfab8d9f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-12-07T13:52:37Z","title_canon_sha256":"0459917df063938356e51dd51a6dc81e30b5df5dab985a2f0a2a09691e6bc873"},"schema_version":"1.0","source":{"id":"1112.1561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1561","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1561v1","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1561","created_at":"2026-05-18T01:59:15Z"},{"alias_kind":"pith_short_12","alias_value":"YE6ESATGMRTX","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YE6ESATGMRTXDCLX","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YE6ESATG","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:f21b467be0eb0e5dec8e5767052c1ebc053c4830727bc8f66a26b4b2f18319e6","target":"graph","created_at":"2026-05-18T01:59:15Z","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":"The spectral line datacubes obtained from the Square Kilometre Array (SKA) and its precursors, such as the Australian SKA Pathfinder (ASKAP), will be sufficiently large to necessitate automated detection and parametrisation of sources. Matched filtering is widely acknowledged as the best possible method for the automated detection of sources. This paper presents the Characterised Noise Hi (CNHI) source finder, which employs a novel implementation of matched filtering. This implementation is optimised for the 3-D nature of the planned Wide-field ASKAP Legacy L-band All- sky Blind surveY's (WALL","authors_text":"Russell Jurek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-12-07T13:52:37Z","title":"The Characterised Noise Hi source finder: Detecting Hi galaxies using a novel implementation of matched filtering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1561","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":"sha256:14d26bd06f61b59bfb33c9c5554165c6e6860fa1b7a6cc12c03669ea9bbb85bd","target":"record","created_at":"2026-05-18T01:59:15Z","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":"cf8f397e00cd432246645e58941f7158c1b8da6d644a3239838dd1bcfab8d9f8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-12-07T13:52:37Z","title_canon_sha256":"0459917df063938356e51dd51a6dc81e30b5df5dab985a2f0a2a09691e6bc873"},"schema_version":"1.0","source":{"id":"1112.1561","kind":"arxiv","version":1}},"canonical_sha256":"c13c4902666467718977ffc5f61faf90a4018ea95556feb0239a317aba284b16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c13c4902666467718977ffc5f61faf90a4018ea95556feb0239a317aba284b16","first_computed_at":"2026-05-18T01:59:15.783581Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:15.783581Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qP8xfiv0dVUy2uzWbOuKMpSl4N5ohJrEk/JoD5j29xzuE8cN++Ivnoqgmzv6VGIMhUUJ2X0J7AvBuq9NvV8TCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:15.784408Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.1561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:14d26bd06f61b59bfb33c9c5554165c6e6860fa1b7a6cc12c03669ea9bbb85bd","sha256:f21b467be0eb0e5dec8e5767052c1ebc053c4830727bc8f66a26b4b2f18319e6"],"state_sha256":"8bbe97c79413fe01f68d11b59e890b9565edf306f5da23387caaff4e09e23495"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uv34nXytr0Wjc5wRjfn39u+3LMtTbxKRBrV3wSP5ZjL6EK8ugFd2Sb7dm0MFESHv2TF4WjB3vof/3MRseqwVDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T15:52:55.337487Z","bundle_sha256":"cd1199091f28971573dfac5a34f710f77f3c778dfb36d602f0984a602b996940"}}