{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ZX76NCR7OYJ3C75L4OT43Y6S4K","short_pith_number":"pith:ZX76NCR7","canonical_record":{"source":{"id":"1904.09697","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-22T02:07:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"3408ee402afb41753aef3f5ea8468c8af4313efba937f0c21e532906a5ce6e96","abstract_canon_sha256":"ad5efaf3f0f9e58bad6ed19d25e5b8deeaebb2e8ac7def01d8b432cb8db34335"},"schema_version":"1.0"},"canonical_sha256":"cdffe68a3f7613b17fabe3a7cde3d2e2bd45d766053229329740fb318df29d20","source":{"kind":"arxiv","id":"1904.09697","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.09697","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.09697v1","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.09697","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"ZX76NCR7OYJ3","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZX76NCR7OYJ3C75L","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZX76NCR7","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ZX76NCR7OYJ3C75L4OT43Y6S4K","target":"record","payload":{"canonical_record":{"source":{"id":"1904.09697","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-22T02:07:10Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"3408ee402afb41753aef3f5ea8468c8af4313efba937f0c21e532906a5ce6e96","abstract_canon_sha256":"ad5efaf3f0f9e58bad6ed19d25e5b8deeaebb2e8ac7def01d8b432cb8db34335"},"schema_version":"1.0"},"canonical_sha256":"cdffe68a3f7613b17fabe3a7cde3d2e2bd45d766053229329740fb318df29d20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:44:18.887691Z","signature_b64":"zomz0N/smXvFfAdggV+lDYeHegN4EfxNhGBC6C0uSe3WBGv+59hRMU0B4vUBwflfNspFenn6qJqZORtop5RODA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cdffe68a3f7613b17fabe3a7cde3d2e2bd45d766053229329740fb318df29d20","last_reissued_at":"2026-05-17T23:44:18.887063Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:44:18.887063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.09697","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":"2026-05-17T23:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LURIfvjvfjGDtNvDkatWK2nqtB3Epy+ycVSQQg5sNQGYFVRvTmscWsHc32TTOA/lrAygQcb7hw1ylWcWegh1CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:46:48.526224Z"},"content_sha256":"a8a23f788dd6a9fb2cfe94ae1ebce6ef7ec84b5535ea5540f9e4c5ffed1bdf19","schema_version":"1.0","event_id":"sha256:a8a23f788dd6a9fb2cfe94ae1ebce6ef7ec84b5535ea5540f9e4c5ffed1bdf19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ZX76NCR7OYJ3C75L4OT43Y6S4K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Hyper Suprime-Cam SSP Transient Survey in COSMOS: Overview","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Akisato Kimura, Chien-Hsiu Lee, David Rubin, Ichiro Takahashi, Ji-an Jiang, Keiichi Maeda, Masaki S. Yamaguchi, Masaomi Tanaka, Masao Sako, Mikio Morii, Naoki Yasuda, Naoki Yoshida, Naonori Ueda, Nao Suzuki, Nicolas Regnault, Nozomu Tominaga, Sherry H. Suyu, Shiro Ikeda, Takashi J. Moriya, Tomoki Morokuma, Yutaka Komiyama","submitted_at":"2019-04-22T02:07:10Z","abstract_excerpt":"We present an overview of a deep transient survey of the COSMOS field with the Subaru Hyper Suprime-Cam (HSC). The survey was performed for the 1.77 deg$^2$ ultra-deep layer and 5.78 deg$^2$ deep layer in the Subaru Strategic Program over 6- and 4-month periods from 2016 to 2017, respectively. The ultra-deep layer shows a median depth per epoch of 26.4, 26.3, 26.0, 25.6, and 24.6 mag in $g$, $r$, $i$, $z$, and $y$ bands, respectively; the deep layer is $\\sim0.6$ mag shallower. In total, 1,824 supernova candidates were identified. Based on light curve fitting and derived light curve shape param"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.09697","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":"2026-05-17T23:44:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8yna7az7byEatDA00/45LSeR+bAgwcuF/IsHlZ7s5OCT3CYjkoCfvufXPTIhu6RqCvBD7zI1Cn/Tjucl6dExBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T13:46:48.526927Z"},"content_sha256":"d23e6c7aecd10c9edcf0a6dfa3f6f637cead78ccd9888db1b0ffb9646b51c1f4","schema_version":"1.0","event_id":"sha256:d23e6c7aecd10c9edcf0a6dfa3f6f637cead78ccd9888db1b0ffb9646b51c1f4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/bundle.json","state_url":"https://pith.science/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/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":"2026-05-26T13:46:48Z","links":{"resolver":"https://pith.science/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K","bundle":"https://pith.science/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/bundle.json","state":"https://pith.science/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZX76NCR7OYJ3C75L4OT43Y6S4K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZX76NCR7OYJ3C75L4OT43Y6S4K","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":"ad5efaf3f0f9e58bad6ed19d25e5b8deeaebb2e8ac7def01d8b432cb8db34335","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-22T02:07:10Z","title_canon_sha256":"3408ee402afb41753aef3f5ea8468c8af4313efba937f0c21e532906a5ce6e96"},"schema_version":"1.0","source":{"id":"1904.09697","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.09697","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"arxiv_version","alias_value":"1904.09697v1","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.09697","created_at":"2026-05-17T23:44:18Z"},{"alias_kind":"pith_short_12","alias_value":"ZX76NCR7OYJ3","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"ZX76NCR7OYJ3C75L","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"ZX76NCR7","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:d23e6c7aecd10c9edcf0a6dfa3f6f637cead78ccd9888db1b0ffb9646b51c1f4","target":"graph","created_at":"2026-05-17T23:44:18Z","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 present an overview of a deep transient survey of the COSMOS field with the Subaru Hyper Suprime-Cam (HSC). The survey was performed for the 1.77 deg$^2$ ultra-deep layer and 5.78 deg$^2$ deep layer in the Subaru Strategic Program over 6- and 4-month periods from 2016 to 2017, respectively. The ultra-deep layer shows a median depth per epoch of 26.4, 26.3, 26.0, 25.6, and 24.6 mag in $g$, $r$, $i$, $z$, and $y$ bands, respectively; the deep layer is $\\sim0.6$ mag shallower. In total, 1,824 supernova candidates were identified. Based on light curve fitting and derived light curve shape param","authors_text":"Akisato Kimura, Chien-Hsiu Lee, David Rubin, Ichiro Takahashi, Ji-an Jiang, Keiichi Maeda, Masaki S. Yamaguchi, Masaomi Tanaka, Masao Sako, Mikio Morii, Naoki Yasuda, Naoki Yoshida, Naonori Ueda, Nao Suzuki, Nicolas Regnault, Nozomu Tominaga, Sherry H. Suyu, Shiro Ikeda, Takashi J. Moriya, Tomoki Morokuma, Yutaka Komiyama","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-22T02:07:10Z","title":"The Hyper Suprime-Cam SSP Transient Survey in COSMOS: Overview"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.09697","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:a8a23f788dd6a9fb2cfe94ae1ebce6ef7ec84b5535ea5540f9e4c5ffed1bdf19","target":"record","created_at":"2026-05-17T23:44:18Z","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":"ad5efaf3f0f9e58bad6ed19d25e5b8deeaebb2e8ac7def01d8b432cb8db34335","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-22T02:07:10Z","title_canon_sha256":"3408ee402afb41753aef3f5ea8468c8af4313efba937f0c21e532906a5ce6e96"},"schema_version":"1.0","source":{"id":"1904.09697","kind":"arxiv","version":1}},"canonical_sha256":"cdffe68a3f7613b17fabe3a7cde3d2e2bd45d766053229329740fb318df29d20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdffe68a3f7613b17fabe3a7cde3d2e2bd45d766053229329740fb318df29d20","first_computed_at":"2026-05-17T23:44:18.887063Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:44:18.887063Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zomz0N/smXvFfAdggV+lDYeHegN4EfxNhGBC6C0uSe3WBGv+59hRMU0B4vUBwflfNspFenn6qJqZORtop5RODA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:44:18.887691Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.09697","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a8a23f788dd6a9fb2cfe94ae1ebce6ef7ec84b5535ea5540f9e4c5ffed1bdf19","sha256:d23e6c7aecd10c9edcf0a6dfa3f6f637cead78ccd9888db1b0ffb9646b51c1f4"],"state_sha256":"8902ccd07bd43d19a18b590ca791d14436c571eabb257e0a6f14fd529e5374de"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kh4PqSPCGKx2Y/04/rbPPLCtG4UOXALOWsCx+oFrU3WcuaAOFvyM+jjeLraFixS2o+65uhlTc0B14yiQRUNiBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T13:46:48.529856Z","bundle_sha256":"6d7b0df7af5bda4cb2592f7530d2a09a7aa997372cc913da9a9c0e9bcbf48351"}}