{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DCASHJ6X5YMUZNDQKA7ILGPAFF","short_pith_number":"pith:DCASHJ6X","canonical_record":{"source":{"id":"1811.04714","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-12T13:30:17Z","cross_cats_sorted":[],"title_canon_sha256":"e2becc9a95c6f0d2080416064c0904f358b80ed0433f6ff2aa5af01703ccc7d1","abstract_canon_sha256":"d91ad93e4ff23cfb3ee7882f5d57e1daf8294533748750df861d84a1e7bbba94"},"schema_version":"1.0"},"canonical_sha256":"188123a7d7ee194cb470503e8599e02973c1a04872f7edbea26343ab592a8e40","source":{"kind":"arxiv","id":"1811.04714","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04714","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04714v2","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04714","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"DCASHJ6X5YMU","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DCASHJ6X5YMUZNDQ","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DCASHJ6X","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DCASHJ6X5YMUZNDQKA7ILGPAFF","target":"record","payload":{"canonical_record":{"source":{"id":"1811.04714","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-12T13:30:17Z","cross_cats_sorted":[],"title_canon_sha256":"e2becc9a95c6f0d2080416064c0904f358b80ed0433f6ff2aa5af01703ccc7d1","abstract_canon_sha256":"d91ad93e4ff23cfb3ee7882f5d57e1daf8294533748750df861d84a1e7bbba94"},"schema_version":"1.0"},"canonical_sha256":"188123a7d7ee194cb470503e8599e02973c1a04872f7edbea26343ab592a8e40","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:35.202848Z","signature_b64":"xpqN3i+m6+ltyFlFfPqqvR+i47JZ2wM4bPCqu9n7994LEbyGa2t1a4GE7UvlpNR4/D3pvfdrxMCimuihJK72Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"188123a7d7ee194cb470503e8599e02973c1a04872f7edbea26343ab592a8e40","last_reissued_at":"2026-05-17T23:45:35.202276Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:35.202276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.04714","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TFIa0sdzP90bccAGZlLvk6taYOj6EI/QAWbWiZVFfh2LtUlX5SUAenWGCeJzqD/lLko7OGzP25vCNYzBhFi4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:41:28.296312Z"},"content_sha256":"f408e5c0b2e32b4f9a762c868e538c0bba7a5a1d1e858d4a66c79ff36de5a2be","schema_version":"1.0","event_id":"sha256:f408e5c0b2e32b4f9a762c868e538c0bba7a5a1d1e858d4a66c79ff36de5a2be"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DCASHJ6X5YMUZNDQKA7ILGPAFF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The stellar halo of isolated central galaxies in the Hyper Suprime-Cam imaging survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessandro Sonnenfeld, David V. Stark, Eli Rykoff, Jiaxin Han, Masahiro Takada, Naoki Yasuda, Neta A. Bahcall, Paul A. Price, Robert Lupton, Song Huang, Surhud More, Ting-Wen Lan, Wentao Luo, Wenting Wang, Xiangchong Li, Yipeng Jing, Yutaka Komiyama","submitted_at":"2018-11-12T13:30:17Z","abstract_excerpt":"We study the faint stellar halo of isolated central galaxies, by stacking galaxy images in the HSC survey and accounting for the residual sky background sampled with random points. The surface brightness profiles in HSC $r$-band are measured for a wide range of galaxy stellar masses ($9.2<\\log_{10}M_\\ast/M_\\odot<11.4$) and out to 120 kpc. Failing to account for the stellar halo below the noise level of individual images will lead to underestimates of the total luminosity by $\\leq 15\\%$. Splitting galaxies according to the concentration parameter of their light distributions, we find that the s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04714","kind":"arxiv","version":2},"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":"2026-05-17T23:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcph+o/x/XsxkHhdYxWMtxW4iqk+BHtcFpt+j2lfJthMhfeLJYXx45VYewGW0BbtkZPoJZbeM93r59TAH5NNBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T12:41:28.297012Z"},"content_sha256":"55b86cbce3b51789ccf392704afe46f3b2a2afc78e05a169a90b9761972d8e15","schema_version":"1.0","event_id":"sha256:55b86cbce3b51789ccf392704afe46f3b2a2afc78e05a169a90b9761972d8e15"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/bundle.json","state_url":"https://pith.science/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/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":"2026-05-25T12:41:28Z","links":{"resolver":"https://pith.science/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF","bundle":"https://pith.science/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/bundle.json","state":"https://pith.science/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DCASHJ6X5YMUZNDQKA7ILGPAFF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DCASHJ6X5YMUZNDQKA7ILGPAFF","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":"d91ad93e4ff23cfb3ee7882f5d57e1daf8294533748750df861d84a1e7bbba94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-12T13:30:17Z","title_canon_sha256":"e2becc9a95c6f0d2080416064c0904f358b80ed0433f6ff2aa5af01703ccc7d1"},"schema_version":"1.0","source":{"id":"1811.04714","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.04714","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1811.04714v2","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.04714","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"DCASHJ6X5YMU","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DCASHJ6X5YMUZNDQ","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DCASHJ6X","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:55b86cbce3b51789ccf392704afe46f3b2a2afc78e05a169a90b9761972d8e15","target":"graph","created_at":"2026-05-17T23:45:35Z","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":"We study the faint stellar halo of isolated central galaxies, by stacking galaxy images in the HSC survey and accounting for the residual sky background sampled with random points. The surface brightness profiles in HSC $r$-band are measured for a wide range of galaxy stellar masses ($9.2<\\log_{10}M_\\ast/M_\\odot<11.4$) and out to 120 kpc. Failing to account for the stellar halo below the noise level of individual images will lead to underestimates of the total luminosity by $\\leq 15\\%$. Splitting galaxies according to the concentration parameter of their light distributions, we find that the s","authors_text":"Alessandro Sonnenfeld, David V. Stark, Eli Rykoff, Jiaxin Han, Masahiro Takada, Naoki Yasuda, Neta A. Bahcall, Paul A. Price, Robert Lupton, Song Huang, Surhud More, Ting-Wen Lan, Wentao Luo, Wenting Wang, Xiangchong Li, Yipeng Jing, Yutaka Komiyama","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-12T13:30:17Z","title":"The stellar halo of isolated central galaxies in the Hyper Suprime-Cam imaging survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.04714","kind":"arxiv","version":2},"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:f408e5c0b2e32b4f9a762c868e538c0bba7a5a1d1e858d4a66c79ff36de5a2be","target":"record","created_at":"2026-05-17T23:45:35Z","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":"d91ad93e4ff23cfb3ee7882f5d57e1daf8294533748750df861d84a1e7bbba94","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2018-11-12T13:30:17Z","title_canon_sha256":"e2becc9a95c6f0d2080416064c0904f358b80ed0433f6ff2aa5af01703ccc7d1"},"schema_version":"1.0","source":{"id":"1811.04714","kind":"arxiv","version":2}},"canonical_sha256":"188123a7d7ee194cb470503e8599e02973c1a04872f7edbea26343ab592a8e40","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"188123a7d7ee194cb470503e8599e02973c1a04872f7edbea26343ab592a8e40","first_computed_at":"2026-05-17T23:45:35.202276Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:35.202276Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xpqN3i+m6+ltyFlFfPqqvR+i47JZ2wM4bPCqu9n7994LEbyGa2t1a4GE7UvlpNR4/D3pvfdrxMCimuihJK72Bw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:35.202848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.04714","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f408e5c0b2e32b4f9a762c868e538c0bba7a5a1d1e858d4a66c79ff36de5a2be","sha256:55b86cbce3b51789ccf392704afe46f3b2a2afc78e05a169a90b9761972d8e15"],"state_sha256":"f1f3a4a4cf539aa655871446dfe34beaccf4a6c6515f407d6be5c8797725e1ea"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6EKlPiUA+MAJFLrZFITvslti+NcHH5d83jXxJ2QUk0m7QWMBQCAUjA9ubsKc5g4/c0XLgQZh0WYwhlMmP9HoBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T12:41:28.300390Z","bundle_sha256":"361e12264e4e43629d3ee3b1b31dbbe0e0653cc61ce1064bcc9d559022333239"}}