{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:3T7GO4S6C5LSXAYIJNLPSFNYWX","short_pith_number":"pith:3T7GO4S6","canonical_record":{"source":{"id":"2505.24395","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-30T09:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"2b1bd51e979e87b373314b74ad9626fcb2efde558cabf6335bbb5e3e45a0c24d","abstract_canon_sha256":"0d7d8ce83cb0d4c2a28fddc8d9785356032d15e4d00911627918bad57f11cef4"},"schema_version":"1.0"},"canonical_sha256":"dcfe67725e17572b83084b56f915b8b5c824a33c43960618bf3648dd82705bf4","source":{"kind":"arxiv","id":"2505.24395","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24395","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24395v1","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24395","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_12","alias_value":"3T7GO4S6C5LS","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_16","alias_value":"3T7GO4S6C5LSXAYI","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_8","alias_value":"3T7GO4S6","created_at":"2026-07-05T11:12:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:3T7GO4S6C5LSXAYIJNLPSFNYWX","target":"record","payload":{"canonical_record":{"source":{"id":"2505.24395","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-30T09:24:18Z","cross_cats_sorted":[],"title_canon_sha256":"2b1bd51e979e87b373314b74ad9626fcb2efde558cabf6335bbb5e3e45a0c24d","abstract_canon_sha256":"0d7d8ce83cb0d4c2a28fddc8d9785356032d15e4d00911627918bad57f11cef4"},"schema_version":"1.0"},"canonical_sha256":"dcfe67725e17572b83084b56f915b8b5c824a33c43960618bf3648dd82705bf4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:12:48.247130Z","signature_b64":"JJl4tLxGQqppvxN1DV7ffvw25STs8gtl3xLJ1rcyZ5+FQKybmwYt7CfIsg9nANkbgdYH/CJ2og6TOdkpKEi4DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dcfe67725e17572b83084b56f915b8b5c824a33c43960618bf3648dd82705bf4","last_reissued_at":"2026-07-05T11:12:48.246596Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:12:48.246596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.24395","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":"2026-07-05T11:12:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wy8MXbBQEDPFcvC8aJCREWLWxeuLW3oqQi2CK79VmDgWi/ZYrrkkD3UENClvJKq9MWjdrZrhVYQFzbZjgRCSCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:54:07.240989Z"},"content_sha256":"1e00d3e3dfffdaf1bd10bb2a4bad9287f304c55186fc5aff068ae242912a60ac","schema_version":"1.0","event_id":"sha256:1e00d3e3dfffdaf1bd10bb2a4bad9287f304c55186fc5aff068ae242912a60ac"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:3T7GO4S6C5LSXAYIJNLPSFNYWX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Correcting for the effects of the point spread function in intra-halo light measurements and application to deep Hyper Suprime-Cam data","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. S. G. Robotham, L. J. M. Davies, L. P. Garate-Nu\\~nez, S. Bellstedt","submitted_at":"2025-05-30T09:24:18Z","abstract_excerpt":"The intra-halo light (IHL) is the diffuse stellar component that surrounds galaxies, groups, and clusters. Its formation is intimately linked to the hierarchical assembly of the system, making it a key tracer of galaxy evolution. However, the low surface brightness (LSB) of the IHL makes it challenging to detect and also to distinguish from the point spread function (PSF) effect of the telescope. In this paper, we present two independent techniques that, when combined, provide a statistically robust estimation of the IHL component in galaxy groups and clusters. The first technique corrects for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24395","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/2505.24395/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":"2026-07-05T11:12:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RwW8epzPtJA8Mg2wxuFoq4rgpFHytfxPrKjKwfziDswOwiu8o35AwhkR2UU2asglRCCWxBxQxtDueCIjekClBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:54:07.242087Z"},"content_sha256":"b7f3fa5e14fc8fc7e86ec89391572ceddb9a7c9ec3703f5c98be918f7bffc6dc","schema_version":"1.0","event_id":"sha256:b7f3fa5e14fc8fc7e86ec89391572ceddb9a7c9ec3703f5c98be918f7bffc6dc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/bundle.json","state_url":"https://pith.science/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/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":"2026-08-08T22:54:07Z","links":{"resolver":"https://pith.science/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX","bundle":"https://pith.science/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/bundle.json","state":"https://pith.science/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3T7GO4S6C5LSXAYIJNLPSFNYWX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3T7GO4S6C5LSXAYIJNLPSFNYWX","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":"0d7d8ce83cb0d4c2a28fddc8d9785356032d15e4d00911627918bad57f11cef4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-30T09:24:18Z","title_canon_sha256":"2b1bd51e979e87b373314b74ad9626fcb2efde558cabf6335bbb5e3e45a0c24d"},"schema_version":"1.0","source":{"id":"2505.24395","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.24395","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"arxiv_version","alias_value":"2505.24395v1","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.24395","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_12","alias_value":"3T7GO4S6C5LS","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_16","alias_value":"3T7GO4S6C5LSXAYI","created_at":"2026-07-05T11:12:48Z"},{"alias_kind":"pith_short_8","alias_value":"3T7GO4S6","created_at":"2026-07-05T11:12:48Z"}],"graph_snapshots":[{"event_id":"sha256:b7f3fa5e14fc8fc7e86ec89391572ceddb9a7c9ec3703f5c98be918f7bffc6dc","target":"graph","created_at":"2026-07-05T11:12:48Z","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/2505.24395/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The intra-halo light (IHL) is the diffuse stellar component that surrounds galaxies, groups, and clusters. Its formation is intimately linked to the hierarchical assembly of the system, making it a key tracer of galaxy evolution. However, the low surface brightness (LSB) of the IHL makes it challenging to detect and also to distinguish from the point spread function (PSF) effect of the telescope. In this paper, we present two independent techniques that, when combined, provide a statistically robust estimation of the IHL component in galaxy groups and clusters. The first technique corrects for","authors_text":"A. S. G. Robotham, L. J. M. Davies, L. P. Garate-Nu\\~nez, S. Bellstedt","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-30T09:24:18Z","title":"Correcting for the effects of the point spread function in intra-halo light measurements and application to deep Hyper Suprime-Cam data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24395","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":"sha256:1e00d3e3dfffdaf1bd10bb2a4bad9287f304c55186fc5aff068ae242912a60ac","target":"record","created_at":"2026-07-05T11:12:48Z","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":"0d7d8ce83cb0d4c2a28fddc8d9785356032d15e4d00911627918bad57f11cef4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-05-30T09:24:18Z","title_canon_sha256":"2b1bd51e979e87b373314b74ad9626fcb2efde558cabf6335bbb5e3e45a0c24d"},"schema_version":"1.0","source":{"id":"2505.24395","kind":"arxiv","version":1}},"canonical_sha256":"dcfe67725e17572b83084b56f915b8b5c824a33c43960618bf3648dd82705bf4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dcfe67725e17572b83084b56f915b8b5c824a33c43960618bf3648dd82705bf4","first_computed_at":"2026-07-05T11:12:48.246596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:12:48.246596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JJl4tLxGQqppvxN1DV7ffvw25STs8gtl3xLJ1rcyZ5+FQKybmwYt7CfIsg9nANkbgdYH/CJ2og6TOdkpKEi4DA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:12:48.247130Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.24395","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e00d3e3dfffdaf1bd10bb2a4bad9287f304c55186fc5aff068ae242912a60ac","sha256:b7f3fa5e14fc8fc7e86ec89391572ceddb9a7c9ec3703f5c98be918f7bffc6dc"],"state_sha256":"8281a175125cdbc01ad3d3dc894262bf46da7e7a4b811851af045833271c92c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/A31DgZhqsQnv6IWPah3eyacwkBoJqIZ1DomSW0546yWXsyHeogJWJWMPRlhn673eHp0Xp94Y67dxK2yGlO3DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T22:54:07.247249Z","bundle_sha256":"80427bbe01d28631941cb55de2e56c9b306153f876ae5873f5e46fb86d2f857a"}}