{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:F62OK2KPB6TJG6PMYRKYHVDFAS","short_pith_number":"pith:F62OK2KP","canonical_record":{"source":{"id":"1903.06027","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-13T04:50:09Z","cross_cats_sorted":[],"title_canon_sha256":"68b6f2d80dfe74c257006b33dce440a52d9f30f32176125310af97d27977749d","abstract_canon_sha256":"d0cd9797e76c55cc945608828d2aa78f3eeaab2750fcc8db58ded26daeca9a42"},"schema_version":"1.0"},"canonical_sha256":"2fb4e5694f0fa69379ecc45583d46504be5695e4d72f461cc6c928073898dd5d","source":{"kind":"arxiv","id":"1903.06027","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.06027","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"arxiv_version","alias_value":"1903.06027v2","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06027","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"pith_short_12","alias_value":"F62OK2KPB6TJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F62OK2KPB6TJG6PM","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F62OK2KP","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:F62OK2KPB6TJG6PMYRKYHVDFAS","target":"record","payload":{"canonical_record":{"source":{"id":"1903.06027","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-13T04:50:09Z","cross_cats_sorted":[],"title_canon_sha256":"68b6f2d80dfe74c257006b33dce440a52d9f30f32176125310af97d27977749d","abstract_canon_sha256":"d0cd9797e76c55cc945608828d2aa78f3eeaab2750fcc8db58ded26daeca9a42"},"schema_version":"1.0"},"canonical_sha256":"2fb4e5694f0fa69379ecc45583d46504be5695e4d72f461cc6c928073898dd5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:04.739053Z","signature_b64":"RFio5OZpwMLXIMYFPX9vKUKbuMUOYCyJejabveHbOLKyabLH0Vwa35UDz1yKBZhZOVQZjh9KYn9U964qT/LZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2fb4e5694f0fa69379ecc45583d46504be5695e4d72f461cc6c928073898dd5d","last_reissued_at":"2026-05-17T23:51:04.738556Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:04.738556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.06027","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":"2026-05-17T23:51:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Orohz+vE+07HKEymAPQu9LSan0XHFS2F8YZunGVnAm06i0b/39sFU/cl2lg/54DEj3pslxKbLObJGL7eYN06Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T11:49:47.488197Z"},"content_sha256":"6fe62bb3bfb83708b974df326fee71894b767c526e4dbc7be6bf2f46d9661485","schema_version":"1.0","event_id":"sha256:6fe62bb3bfb83708b974df326fee71894b767c526e4dbc7be6bf2f46d9661485"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:F62OK2KPB6TJG6PMYRKYHVDFAS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ASTRO2020 White Paper: JWST: Probing the Epoch of Reionization with a Wide Field Time-Domain Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Fruchter, A. Gal-Yam, A. Heger, A. Kashlinsky, A. Kim, A. Koekemoer, A. Rest, B. Yue, C. Stubbs, D. A. Howell, D. Baade, D. Rubin, D. Sand, D. Whalen, E. Baron, E. Pian, F. Pacucci, F. Patat, J. Cooke, J. C. Wheeler, J. Mather, J. Mould, L. Wang, N. Suntzeff, P. Hoeflich, P. Mazzali, R. Foley, S. Perlmutter, T.-W. Chen, V.Bromm, X. Fan, X.-F. Wang","submitted_at":"2019-03-13T04:50:09Z","abstract_excerpt":"A major scientific goal of JWST is to probe the epoch of re-ionization of the Universe at z above 6, and up to 20 and beyond. At these redshifts, galaxies are just beginning to form and the observable objects are early black holes, supernovae, and cosmic infrared background. The JWST has the necessary sensitivity to observe these targets individually, but a public deep and wide science enabling survey in the wavelength range from 2-5 $\\mu$m is needed to discover these black holes and supernovae and to cover the area large enough for cosmic infrared background to be reliably studied. This enabl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06027","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":"2026-05-17T23:51:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DsH66Ak6mhI8LbB/c5ASlYBCJT9ArkYovyObqDrNQgPX/ss/lEm+WHMCs9N6yGkXf5mUQHzXHyYN6ZB6Otm9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T11:49:47.488752Z"},"content_sha256":"15bce7a2b53fa46db33f0b32ae1151b96929678aa59b411f338f3f7c42b2d805","schema_version":"1.0","event_id":"sha256:15bce7a2b53fa46db33f0b32ae1151b96929678aa59b411f338f3f7c42b2d805"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/bundle.json","state_url":"https://pith.science/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/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":"2026-05-19T11:49:47Z","links":{"resolver":"https://pith.science/pith/F62OK2KPB6TJG6PMYRKYHVDFAS","bundle":"https://pith.science/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/bundle.json","state":"https://pith.science/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F62OK2KPB6TJG6PMYRKYHVDFAS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:F62OK2KPB6TJG6PMYRKYHVDFAS","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":"d0cd9797e76c55cc945608828d2aa78f3eeaab2750fcc8db58ded26daeca9a42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-13T04:50:09Z","title_canon_sha256":"68b6f2d80dfe74c257006b33dce440a52d9f30f32176125310af97d27977749d"},"schema_version":"1.0","source":{"id":"1903.06027","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.06027","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"arxiv_version","alias_value":"1903.06027v2","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.06027","created_at":"2026-05-17T23:51:04Z"},{"alias_kind":"pith_short_12","alias_value":"F62OK2KPB6TJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"F62OK2KPB6TJG6PM","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"F62OK2KP","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:15bce7a2b53fa46db33f0b32ae1151b96929678aa59b411f338f3f7c42b2d805","target":"graph","created_at":"2026-05-17T23:51:04Z","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":"A major scientific goal of JWST is to probe the epoch of re-ionization of the Universe at z above 6, and up to 20 and beyond. At these redshifts, galaxies are just beginning to form and the observable objects are early black holes, supernovae, and cosmic infrared background. The JWST has the necessary sensitivity to observe these targets individually, but a public deep and wide science enabling survey in the wavelength range from 2-5 $\\mu$m is needed to discover these black holes and supernovae and to cover the area large enough for cosmic infrared background to be reliably studied. This enabl","authors_text":"A. Fruchter, A. Gal-Yam, A. Heger, A. Kashlinsky, A. Kim, A. Koekemoer, A. Rest, B. Yue, C. Stubbs, D. A. Howell, D. Baade, D. Rubin, D. Sand, D. Whalen, E. Baron, E. Pian, F. Pacucci, F. Patat, J. Cooke, J. C. Wheeler, J. Mather, J. Mould, L. Wang, N. Suntzeff, P. Hoeflich, P. Mazzali, R. Foley, S. Perlmutter, T.-W. Chen, V.Bromm, X. Fan, X.-F. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-13T04:50:09Z","title":"ASTRO2020 White Paper: JWST: Probing the Epoch of Reionization with a Wide Field Time-Domain Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.06027","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":"sha256:6fe62bb3bfb83708b974df326fee71894b767c526e4dbc7be6bf2f46d9661485","target":"record","created_at":"2026-05-17T23:51:04Z","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":"d0cd9797e76c55cc945608828d2aa78f3eeaab2750fcc8db58ded26daeca9a42","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2019-03-13T04:50:09Z","title_canon_sha256":"68b6f2d80dfe74c257006b33dce440a52d9f30f32176125310af97d27977749d"},"schema_version":"1.0","source":{"id":"1903.06027","kind":"arxiv","version":2}},"canonical_sha256":"2fb4e5694f0fa69379ecc45583d46504be5695e4d72f461cc6c928073898dd5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2fb4e5694f0fa69379ecc45583d46504be5695e4d72f461cc6c928073898dd5d","first_computed_at":"2026-05-17T23:51:04.738556Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:51:04.738556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RFio5OZpwMLXIMYFPX9vKUKbuMUOYCyJejabveHbOLKyabLH0Vwa35UDz1yKBZhZOVQZjh9KYn9U964qT/LZBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:51:04.739053Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.06027","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6fe62bb3bfb83708b974df326fee71894b767c526e4dbc7be6bf2f46d9661485","sha256:15bce7a2b53fa46db33f0b32ae1151b96929678aa59b411f338f3f7c42b2d805"],"state_sha256":"33f8235690648e845a71d026437dbd2fc2d3a4cb38b4574aa35120f84b7d53ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0IdqvopETB97ayLgr3n1HqrmCbDbW1A+aXKUX791lbmt6nEWwD0wQIiBxConBsVvZB+dryt6Lo4aCZdiwjOQBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T11:49:47.490942Z","bundle_sha256":"0aeeca8f57fc8d5a183fae8a838de581293ab9e8f97413832ee06c06bb86b0b2"}}