{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:RTODMRNOEVW2KNJ6QQUSLEJ2WD","short_pith_number":"pith:RTODMRNO","canonical_record":{"source":{"id":"1508.03100","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-08-13T01:44:53Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"922accbb41ce6e4ae6341f524b9b9e89bdcba306ecb8f4d951da2d25ba6e3662","abstract_canon_sha256":"85349705aae63972222d0a099bde40072769ebc3ad31cac3c2ba48b8d7d51c7d"},"schema_version":"1.0"},"canonical_sha256":"8cdc3645ae256da5353e842925913ab0f18e52d6d6471c784cd8c82154a317ef","source":{"kind":"arxiv","id":"1508.03100","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.03100","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.03100v2","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.03100","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"RTODMRNOEVW2","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RTODMRNOEVW2KNJ6","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RTODMRNO","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:RTODMRNOEVW2KNJ6QQUSLEJ2WD","target":"record","payload":{"canonical_record":{"source":{"id":"1508.03100","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-08-13T01:44:53Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"922accbb41ce6e4ae6341f524b9b9e89bdcba306ecb8f4d951da2d25ba6e3662","abstract_canon_sha256":"85349705aae63972222d0a099bde40072769ebc3ad31cac3c2ba48b8d7d51c7d"},"schema_version":"1.0"},"canonical_sha256":"8cdc3645ae256da5353e842925913ab0f18e52d6d6471c784cd8c82154a317ef","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:45.497978Z","signature_b64":"gdjrLRj2QFBejQw8V3TNLWgBT9Ssq0JxKcjMgwgMjqVqZAijvtcr4rT6UlJl65Br8dF6x6dJ9g4CXF5MGZHXDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8cdc3645ae256da5353e842925913ab0f18e52d6d6471c784cd8c82154a317ef","last_reissued_at":"2026-05-18T01:20:45.497505Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:45.497505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1508.03100","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":"2026-05-18T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rcB+qyEDC9DUM/RS30wBTK2p1RUNYqOD2AJLemrHBRLdqv/QfJz6Lz9vdXHAVs4vCrn07awmIOu4Bq0YLpnyAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:38:08.383933Z"},"content_sha256":"aeb8e26c555181e6dceaccadddaa8735188f741041d3708746a539924e265151","schema_version":"1.0","event_id":"sha256:aeb8e26c555181e6dceaccadddaa8735188f741041d3708746a539924e265151"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:RTODMRNOEVW2KNJ6QQUSLEJ2WD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two Type Ia Supernovae at Redshift ~2 : Improved Classification and Redshift Determination with Medium-band Infrared Imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Adam G. Riess, Alberto Molino, Bahram Mobasher, Brian Hayden, Curtis McCully, Daniel M. Scolnic, David O. Jones, Louis-Gregory Strolger, Or Graur, Shoubaneh Hemmati, Stefano Casertano, Steven A. Rodney","submitted_at":"2015-08-13T01:44:53Z","abstract_excerpt":"We present two supernovae (SNe) discovered with the Hubble Space Telescope (HST) in the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS), an HST multi-cycle treasury program. We classify both objects as Type Ia SNe and find redshifts of z = 1.80+-0.02 and 2.26 +0.02 -0.10, the latter of which is the highest redshift Type Ia SN yet seen. Using light curve fitting we determine luminosity distances and find that both objects are consistent with a standard Lambda-CDM cosmological model. These SNe were observed using the HST Wide Field Camera 3 infrared detector (WFC3-IR), w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.03100","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":"2026-05-18T01:20:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"X5sdvSwfBGx4bZFJDbhy/h4c9ijar5Gpf3/84y6o6cvX8ssQPuBjDlgiObzS8D4fCcyQ0PbinFWserT75F9TBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T10:38:08.384286Z"},"content_sha256":"c36f763bbd835ee2d11e2c7510fd9d0464ee6a33a251e796035826a96c17549b","schema_version":"1.0","event_id":"sha256:c36f763bbd835ee2d11e2c7510fd9d0464ee6a33a251e796035826a96c17549b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/bundle.json","state_url":"https://pith.science/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/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":"2026-07-07T10:38:08Z","links":{"resolver":"https://pith.science/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD","bundle":"https://pith.science/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/bundle.json","state":"https://pith.science/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RTODMRNOEVW2KNJ6QQUSLEJ2WD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:RTODMRNOEVW2KNJ6QQUSLEJ2WD","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":"85349705aae63972222d0a099bde40072769ebc3ad31cac3c2ba48b8d7d51c7d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-08-13T01:44:53Z","title_canon_sha256":"922accbb41ce6e4ae6341f524b9b9e89bdcba306ecb8f4d951da2d25ba6e3662"},"schema_version":"1.0","source":{"id":"1508.03100","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1508.03100","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"arxiv_version","alias_value":"1508.03100v2","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1508.03100","created_at":"2026-05-18T01:20:45Z"},{"alias_kind":"pith_short_12","alias_value":"RTODMRNOEVW2","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"RTODMRNOEVW2KNJ6","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"RTODMRNO","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:c36f763bbd835ee2d11e2c7510fd9d0464ee6a33a251e796035826a96c17549b","target":"graph","created_at":"2026-05-18T01:20:45Z","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 two supernovae (SNe) discovered with the Hubble Space Telescope (HST) in the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS), an HST multi-cycle treasury program. We classify both objects as Type Ia SNe and find redshifts of z = 1.80+-0.02 and 2.26 +0.02 -0.10, the latter of which is the highest redshift Type Ia SN yet seen. Using light curve fitting we determine luminosity distances and find that both objects are consistent with a standard Lambda-CDM cosmological model. These SNe were observed using the HST Wide Field Camera 3 infrared detector (WFC3-IR), w","authors_text":"Adam G. Riess, Alberto Molino, Bahram Mobasher, Brian Hayden, Curtis McCully, Daniel M. Scolnic, David O. Jones, Louis-Gregory Strolger, Or Graur, Shoubaneh Hemmati, Stefano Casertano, Steven A. Rodney","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-08-13T01:44:53Z","title":"Two Type Ia Supernovae at Redshift ~2 : Improved Classification and Redshift Determination with Medium-band Infrared Imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1508.03100","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:aeb8e26c555181e6dceaccadddaa8735188f741041d3708746a539924e265151","target":"record","created_at":"2026-05-18T01:20:45Z","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":"85349705aae63972222d0a099bde40072769ebc3ad31cac3c2ba48b8d7d51c7d","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2015-08-13T01:44:53Z","title_canon_sha256":"922accbb41ce6e4ae6341f524b9b9e89bdcba306ecb8f4d951da2d25ba6e3662"},"schema_version":"1.0","source":{"id":"1508.03100","kind":"arxiv","version":2}},"canonical_sha256":"8cdc3645ae256da5353e842925913ab0f18e52d6d6471c784cd8c82154a317ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8cdc3645ae256da5353e842925913ab0f18e52d6d6471c784cd8c82154a317ef","first_computed_at":"2026-05-18T01:20:45.497505Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:20:45.497505Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gdjrLRj2QFBejQw8V3TNLWgBT9Ssq0JxKcjMgwgMjqVqZAijvtcr4rT6UlJl65Br8dF6x6dJ9g4CXF5MGZHXDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:20:45.497978Z","signed_message":"canonical_sha256_bytes"},"source_id":"1508.03100","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aeb8e26c555181e6dceaccadddaa8735188f741041d3708746a539924e265151","sha256:c36f763bbd835ee2d11e2c7510fd9d0464ee6a33a251e796035826a96c17549b"],"state_sha256":"34e41a49c9ac7eb392105c46264117a2aed53af249e55a774050abe5efbbe1a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CATyWgsGESBDVg9EZPtOZ5dEmZo3zIonvLsy9xOEctpHyKofoaPMD7fq7s1pEeSizeu2qwDc6ckSCOZSHpkTBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T10:38:08.386603Z","bundle_sha256":"f49677ae87cd5a1d993a9f7db0b8797116c0fe03e24d1a54646bb6a9188e116a"}}