{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:PPWTVII2DUVQN5A6LSB6Q5LRJN","short_pith_number":"pith:PPWTVII2","canonical_record":{"source":{"id":"1808.04729","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-14T14:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"43e620d2d7a9ae1e01eb6852211e337e3159962589918d0ed73f253a2a62d221","abstract_canon_sha256":"a6956ed7479bc4f24e32a2de9eb9bf22b81aa4e2dba5d77fd5f582890f532e27"},"schema_version":"1.0"},"canonical_sha256":"7bed3aa11a1d2b06f41e5c83e875714b7e317aae20deec69b54b4897c906f720","source":{"kind":"arxiv","id":"1808.04729","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04729","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04729v3","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04729","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"pith_short_12","alias_value":"PPWTVII2DUVQ","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PPWTVII2DUVQN5A6","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PPWTVII2","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:PPWTVII2DUVQN5A6LSB6Q5LRJN","target":"record","payload":{"canonical_record":{"source":{"id":"1808.04729","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-14T14:57:40Z","cross_cats_sorted":[],"title_canon_sha256":"43e620d2d7a9ae1e01eb6852211e337e3159962589918d0ed73f253a2a62d221","abstract_canon_sha256":"a6956ed7479bc4f24e32a2de9eb9bf22b81aa4e2dba5d77fd5f582890f532e27"},"schema_version":"1.0"},"canonical_sha256":"7bed3aa11a1d2b06f41e5c83e875714b7e317aae20deec69b54b4897c906f720","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:38.115389Z","signature_b64":"Uh4UYfQKCMpuA7+gDlIXh/R136U7N2w9DEqn6VF2LV63TspN4WCz8x+gGfKiXB/LIDb5zDm+fzoL/uGwBdXUAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7bed3aa11a1d2b06f41e5c83e875714b7e317aae20deec69b54b4897c906f720","last_reissued_at":"2026-05-17T23:43:38.114689Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:38.114689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.04729","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:43:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"88Antohp0VYcfGvN8AFUO4UfUkU66w+M0JSWU93K3Mcx4PLP3dXQ3ewKgmyUnAN5LwBrRgAiz0pXJLSMhiBMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:35:02.377450Z"},"content_sha256":"f205a0e677198346d34ac0cef07263810678fd89250a14800a897192c019c95f","schema_version":"1.0","event_id":"sha256:f205a0e677198346d34ac0cef07263810678fd89250a14800a897192c019c95f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:PPWTVII2DUVQN5A6LSB6Q5LRJN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Red and Reddened: Ultraviolet through Near-Infrared Observations of Type Ia Supernova 2017erp","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ashley J. Ruiter, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Danfeng Xiang, David Sand, Davron Mirzaqulov, Ethan Vieira, E. Y. Hsiao, G. H. Marion, Griffin Hosseinzadeh, Iair Arcavi, Joao Bento, Kyle G. Dettman, Lifan Wang, Mi Dai, Peter A. Milne, Peter J. Brown, Saurabh W. Jha, Stefano Valenti, Syed Uddin, Tiara Diamond, Xiaofeng Wang","submitted_at":"2018-08-14T14:57:40Z","abstract_excerpt":"We present space-based ultraviolet/optical photometry and spectroscopy with the Swift Ultra-Violet/Optical Telescope and Hubble Space Telescope, respectively, along with ground-based optical photometry and spectroscopy and near-infrared spectroscopy of supernova SN2017erp. The optical light curves and spectra are consistent with a normal Type Ia supernova (SN Ia). Compared to previous photometric samples in the near-ultraviolet (NUV), SN2017erp has colors similar to the NUV-red category after correcting for Milky Way and host dust reddening. We find the difference between SN2017erp and the NUV"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04729","kind":"arxiv","version":3},"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":"2026-05-17T23:43:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H4x545uSnBb7v3hrKlEi4iaYiRMiKxhQ7ibrYvwqo4rS0uqlVHate7m8BQjRXj5p8hJI4FJ3AjzIJ/KZlrraAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:35:02.378110Z"},"content_sha256":"e4eac1167566134390e2819a0095ed04747765310b4a576142612c127f411864","schema_version":"1.0","event_id":"sha256:e4eac1167566134390e2819a0095ed04747765310b4a576142612c127f411864"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/bundle.json","state_url":"https://pith.science/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/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":"2026-05-20T11:35:02Z","links":{"resolver":"https://pith.science/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN","bundle":"https://pith.science/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/bundle.json","state":"https://pith.science/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PPWTVII2DUVQN5A6LSB6Q5LRJN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:PPWTVII2DUVQN5A6LSB6Q5LRJN","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":"a6956ed7479bc4f24e32a2de9eb9bf22b81aa4e2dba5d77fd5f582890f532e27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-14T14:57:40Z","title_canon_sha256":"43e620d2d7a9ae1e01eb6852211e337e3159962589918d0ed73f253a2a62d221"},"schema_version":"1.0","source":{"id":"1808.04729","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04729","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04729v3","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04729","created_at":"2026-05-17T23:43:38Z"},{"alias_kind":"pith_short_12","alias_value":"PPWTVII2DUVQ","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"PPWTVII2DUVQN5A6","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"PPWTVII2","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:e4eac1167566134390e2819a0095ed04747765310b4a576142612c127f411864","target":"graph","created_at":"2026-05-17T23:43:38Z","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 space-based ultraviolet/optical photometry and spectroscopy with the Swift Ultra-Violet/Optical Telescope and Hubble Space Telescope, respectively, along with ground-based optical photometry and spectroscopy and near-infrared spectroscopy of supernova SN2017erp. The optical light curves and spectra are consistent with a normal Type Ia supernova (SN Ia). Compared to previous photometric samples in the near-ultraviolet (NUV), SN2017erp has colors similar to the NUV-red category after correcting for Milky Way and host dust reddening. We find the difference between SN2017erp and the NUV","authors_text":"Ashley J. Ruiter, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Danfeng Xiang, David Sand, Davron Mirzaqulov, Ethan Vieira, E. Y. Hsiao, G. H. Marion, Griffin Hosseinzadeh, Iair Arcavi, Joao Bento, Kyle G. Dettman, Lifan Wang, Mi Dai, Peter A. Milne, Peter J. Brown, Saurabh W. Jha, Stefano Valenti, Syed Uddin, Tiara Diamond, Xiaofeng Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-14T14:57:40Z","title":"Red and Reddened: Ultraviolet through Near-Infrared Observations of Type Ia Supernova 2017erp"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04729","kind":"arxiv","version":3},"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:f205a0e677198346d34ac0cef07263810678fd89250a14800a897192c019c95f","target":"record","created_at":"2026-05-17T23:43:38Z","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":"a6956ed7479bc4f24e32a2de9eb9bf22b81aa4e2dba5d77fd5f582890f532e27","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-08-14T14:57:40Z","title_canon_sha256":"43e620d2d7a9ae1e01eb6852211e337e3159962589918d0ed73f253a2a62d221"},"schema_version":"1.0","source":{"id":"1808.04729","kind":"arxiv","version":3}},"canonical_sha256":"7bed3aa11a1d2b06f41e5c83e875714b7e317aae20deec69b54b4897c906f720","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7bed3aa11a1d2b06f41e5c83e875714b7e317aae20deec69b54b4897c906f720","first_computed_at":"2026-05-17T23:43:38.114689Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:43:38.114689Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Uh4UYfQKCMpuA7+gDlIXh/R136U7N2w9DEqn6VF2LV63TspN4WCz8x+gGfKiXB/LIDb5zDm+fzoL/uGwBdXUAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:43:38.115389Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.04729","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f205a0e677198346d34ac0cef07263810678fd89250a14800a897192c019c95f","sha256:e4eac1167566134390e2819a0095ed04747765310b4a576142612c127f411864"],"state_sha256":"20b811ba54ac52a4660b946103522a64df495c196e60956b1ce0d57f78eb2e40"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R63bt3rUarESev72cxZay8CsVnBFa1sZr32tXH066/lfUaCltydgtF/DnRYtiTk2XZMq+aWa32AFhtKDyT0fBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T11:35:02.381283Z","bundle_sha256":"7fae52356cda187ba7461a3b7fd05dee3a57710e495783b8355b48ccae073039"}}