{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:6KCQ5N6MKKZPFK6MVQSYHP2GWR","short_pith_number":"pith:6KCQ5N6M","canonical_record":{"source":{"id":"1801.03167","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-08T09:21:46Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"0d86631cd997dcd403f2d4bc9f9536beb17b3bad7c5074c694a366bdd28524fa","abstract_canon_sha256":"829e6677af8a926579b8bc9875b68b6e78a010bcb39f0973c04c188cfc53a3a1"},"schema_version":"1.0"},"canonical_sha256":"f2850eb7cc52b2f2abccac2583bf46b4531e9b2004517645b8561729259d52fd","source":{"kind":"arxiv","id":"1801.03167","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03167","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03167v1","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03167","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"6KCQ5N6MKKZP","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6KCQ5N6MKKZPFK6M","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6KCQ5N6M","created_at":"2026-05-18T12:32:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:6KCQ5N6MKKZPFK6MVQSYHP2GWR","target":"record","payload":{"canonical_record":{"source":{"id":"1801.03167","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-08T09:21:46Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"0d86631cd997dcd403f2d4bc9f9536beb17b3bad7c5074c694a366bdd28524fa","abstract_canon_sha256":"829e6677af8a926579b8bc9875b68b6e78a010bcb39f0973c04c188cfc53a3a1"},"schema_version":"1.0"},"canonical_sha256":"f2850eb7cc52b2f2abccac2583bf46b4531e9b2004517645b8561729259d52fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:15.254123Z","signature_b64":"+g4+wnOg4FnwQgT9bzWd9dBKNgt2+xh5DNuqUhb7M359Hh+R+XavORv1xmCw4cMOmjtULajCqf652yj/yikVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2850eb7cc52b2f2abccac2583bf46b4531e9b2004517645b8561729259d52fd","last_reissued_at":"2026-05-18T00:25:15.253335Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:15.253335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.03167","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":"2026-05-18T00:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/sIWTG9zxbKp6rs7S9Xcu/mhajg8Z0ddeRbU6GTnlrod9nE0yFBtmiF+tYahWeGK7OZvdl5mFYFKJCf1xbqbCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:35:49.102212Z"},"content_sha256":"5f7b66b4493b03af8ab742d955d8ac7647dca4e346707edd12fb3550351fc35a","schema_version":"1.0","event_id":"sha256:5f7b66b4493b03af8ab742d955d8ac7647dca4e346707edd12fb3550351fc35a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:6KCQ5N6MKKZPFK6MVQSYHP2GWR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SN 2016X: A Type II-P Supernova with A Signature of Shock Breakout from Explosion of A Massive Red Supergiant","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"C. McCully, D.-A. Howell, D.-F. Xiang, F. Huang, G. Hosseinzadeh, H. Lin, H. Song, I. Arcavi, J.-J. Zhang, J. Mo, K.-C. Zhang, L.-F. Wang, L.-M. Rui, P. J. Brown, S. Valenti, T.-M. Zhang, W.-X. Li, X.-F. Wang","submitted_at":"2018-01-08T09:21:46Z","abstract_excerpt":"We present extensive ultraviolet (UV) and optical photometry, as well as dense optical spectroscopy for type II Plateau (IIP) supernova SN 2016X that exploded in the nearby ($\\sim$ 15 Mpc) spiral galaxy UGC 08041. The observations span the period from 2 to 180 days after the explosion; in particular, the Swift UV data probably captured the signature of shock breakout associated with the explosion of SN 2016X. It shows very strong UV emission during the first week after explosion, with contribution of $\\sim$ 20 -- 30% to the bolometric luminosity (versus $\\lesssim$ 15% for normal SNe IIP). More"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03167","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":"2026-05-18T00:25:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"scFYezDqtNzhGFtMtNkSeE2jDw2ZnpomWOdWBRrFr9nckwQkTKNU3ESXg2pr044BS0kVISTQSCxki2eeNOb7DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:35:49.102910Z"},"content_sha256":"9228299ddb6fd1b7ef72eae2d06dc27ae8d7f8daebbc2f5184bbd3cafdb15040","schema_version":"1.0","event_id":"sha256:9228299ddb6fd1b7ef72eae2d06dc27ae8d7f8daebbc2f5184bbd3cafdb15040"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/bundle.json","state_url":"https://pith.science/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/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":"2026-05-25T06:35:49Z","links":{"resolver":"https://pith.science/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR","bundle":"https://pith.science/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/bundle.json","state":"https://pith.science/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6KCQ5N6MKKZPFK6MVQSYHP2GWR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6KCQ5N6MKKZPFK6MVQSYHP2GWR","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":"829e6677af8a926579b8bc9875b68b6e78a010bcb39f0973c04c188cfc53a3a1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-08T09:21:46Z","title_canon_sha256":"0d86631cd997dcd403f2d4bc9f9536beb17b3bad7c5074c694a366bdd28524fa"},"schema_version":"1.0","source":{"id":"1801.03167","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.03167","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"arxiv_version","alias_value":"1801.03167v1","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.03167","created_at":"2026-05-18T00:25:15Z"},{"alias_kind":"pith_short_12","alias_value":"6KCQ5N6MKKZP","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6KCQ5N6MKKZPFK6M","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6KCQ5N6M","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:9228299ddb6fd1b7ef72eae2d06dc27ae8d7f8daebbc2f5184bbd3cafdb15040","target":"graph","created_at":"2026-05-18T00:25:15Z","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 extensive ultraviolet (UV) and optical photometry, as well as dense optical spectroscopy for type II Plateau (IIP) supernova SN 2016X that exploded in the nearby ($\\sim$ 15 Mpc) spiral galaxy UGC 08041. The observations span the period from 2 to 180 days after the explosion; in particular, the Swift UV data probably captured the signature of shock breakout associated with the explosion of SN 2016X. It shows very strong UV emission during the first week after explosion, with contribution of $\\sim$ 20 -- 30% to the bolometric luminosity (versus $\\lesssim$ 15% for normal SNe IIP). More","authors_text":"C. McCully, D.-A. Howell, D.-F. Xiang, F. Huang, G. Hosseinzadeh, H. Lin, H. Song, I. Arcavi, J.-J. Zhang, J. Mo, K.-C. Zhang, L.-F. Wang, L.-M. Rui, P. J. Brown, S. Valenti, T.-M. Zhang, W.-X. Li, X.-F. Wang","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-08T09:21:46Z","title":"SN 2016X: A Type II-P Supernova with A Signature of Shock Breakout from Explosion of A Massive Red Supergiant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.03167","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":"sha256:5f7b66b4493b03af8ab742d955d8ac7647dca4e346707edd12fb3550351fc35a","target":"record","created_at":"2026-05-18T00:25:15Z","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":"829e6677af8a926579b8bc9875b68b6e78a010bcb39f0973c04c188cfc53a3a1","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-08T09:21:46Z","title_canon_sha256":"0d86631cd997dcd403f2d4bc9f9536beb17b3bad7c5074c694a366bdd28524fa"},"schema_version":"1.0","source":{"id":"1801.03167","kind":"arxiv","version":1}},"canonical_sha256":"f2850eb7cc52b2f2abccac2583bf46b4531e9b2004517645b8561729259d52fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2850eb7cc52b2f2abccac2583bf46b4531e9b2004517645b8561729259d52fd","first_computed_at":"2026-05-18T00:25:15.253335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:15.253335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+g4+wnOg4FnwQgT9bzWd9dBKNgt2+xh5DNuqUhb7M359Hh+R+XavORv1xmCw4cMOmjtULajCqf652yj/yikVBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:15.254123Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.03167","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5f7b66b4493b03af8ab742d955d8ac7647dca4e346707edd12fb3550351fc35a","sha256:9228299ddb6fd1b7ef72eae2d06dc27ae8d7f8daebbc2f5184bbd3cafdb15040"],"state_sha256":"eb63620c55d736a835155b2632c1c46b3a4ba93f91714857af412fadf04665ef"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wnt7IEo86qxmn2MF1K2F/63TV6an7tgqZvJmwaPz/KTomz2gPK2ECrg9yT416pW4rghcH25L7zvFnzJmdgMrDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T06:35:49.106671Z","bundle_sha256":"331a491696855c7671708d2c0a63e82fb7088178946c24cb1b15ab3855a7f61e"}}