{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NNVPLOVUNWZVYZR43BSIKABZLK","short_pith_number":"pith:NNVPLOVU","canonical_record":{"source":{"id":"1701.02596","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-10T14:03:38Z","cross_cats_sorted":[],"title_canon_sha256":"715966dbd43a0f61fa9ffd2d822eb4b3addc365feb5eb0ee9e803e25dd0e41e4","abstract_canon_sha256":"4c0d37e058b88c13d9529af34658450f907f57951f0274ce309863294b83bf5c"},"schema_version":"1.0"},"canonical_sha256":"6b6af5bab46db35c663cd8648500395aa3c488e1fce15f17640adf1892aabf19","source":{"kind":"arxiv","id":"1701.02596","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02596","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02596v2","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02596","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"NNVPLOVUNWZV","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NNVPLOVUNWZVYZR4","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NNVPLOVU","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NNVPLOVUNWZVYZR43BSIKABZLK","target":"record","payload":{"canonical_record":{"source":{"id":"1701.02596","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-10T14:03:38Z","cross_cats_sorted":[],"title_canon_sha256":"715966dbd43a0f61fa9ffd2d822eb4b3addc365feb5eb0ee9e803e25dd0e41e4","abstract_canon_sha256":"4c0d37e058b88c13d9529af34658450f907f57951f0274ce309863294b83bf5c"},"schema_version":"1.0"},"canonical_sha256":"6b6af5bab46db35c663cd8648500395aa3c488e1fce15f17640adf1892aabf19","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:37.383827Z","signature_b64":"pCgLwPeO1rt0U5YCYmGL+u4z935S4xFBiw+wHoo0YsCTnj9nOB1TcKja7ae5ydaLdr/g2CZ4WDov+OeoJjfJBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b6af5bab46db35c663cd8648500395aa3c488e1fce15f17640adf1892aabf19","last_reissued_at":"2026-05-18T00:50:37.383243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:37.383243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1701.02596","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":"2026-05-18T00:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uMaogewStahJ1U640+xxZlcRBA79uceIMYNDblhfDjG8YvA8uEkWU4WBLyiktgdsP5F1q0W5fi5VBEj76D3oBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:38:25.322654Z"},"content_sha256":"2ffd5fc4054add7f94405bca5980fcea510762e5a893c7385d15d3c5cf05da0f","schema_version":"1.0","event_id":"sha256:2ffd5fc4054add7f94405bca5980fcea510762e5a893c7385d15d3c5cf05da0f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NNVPLOVUNWZVYZR43BSIKABZLK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Confined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Gal-Yam, A. Horesh, A. Rubin, A. V. Filippenko, C. Fransson, D. A. Howell, D. A. Perley, D. Khazov, E. O. Ofek, F. Taddia, I. Arcavi, J. H. Groh, J. Sollerman, K. Maguire, M. M. Kasliwal, M. Sullivan, M. T. Soumagnac, N. Sapir, O. D. Fox, O. Gnat, O. Yaron, P. E. Nugent, P. L. Kelly, P. M. Vreeswijk, P. R. Wozniak, P. Szabo, R. R. Laher, S. B. Cenko, S. R. Kulkarni, S. Valenti, U. D. Rebbapragada, W. H. Lee, Y. Cao","submitted_at":"2017-01-10T14:03:38Z","abstract_excerpt":"With the advent of new wide-field, high-cadence optical transient surveys, our understanding of the diversity of core-collapse supernovae has grown tremendously in the last decade. However, the pre-supernova evolution of massive stars, that sets the physical backdrop to these violent events, is theoretically not well understood and difficult to probe observationally. Here we report the discovery of the supernova iPTF13dqy = SN 2013fs, a mere ~3 hr after explosion. Our rapid follow-up observations, which include multiwavelength photometry and extremely early (beginning at ~6 hr post-explosion) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02596","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":"2026-05-18T00:50:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XYWWRsoseLs4cb9NYD21DJdU/Ql4biZnLnsbyF0+lzCa0Cmwzn4d5jqcDvGrSGigRFEEUedjZ1OkChJO91+mDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:38:25.323261Z"},"content_sha256":"98b40114b57201358a707fb032b351219ecd349905c1259a3edd9ff43a844144","schema_version":"1.0","event_id":"sha256:98b40114b57201358a707fb032b351219ecd349905c1259a3edd9ff43a844144"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NNVPLOVUNWZVYZR43BSIKABZLK/bundle.json","state_url":"https://pith.science/pith/NNVPLOVUNWZVYZR43BSIKABZLK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NNVPLOVUNWZVYZR43BSIKABZLK/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":"2026-05-26T06:38:25Z","links":{"resolver":"https://pith.science/pith/NNVPLOVUNWZVYZR43BSIKABZLK","bundle":"https://pith.science/pith/NNVPLOVUNWZVYZR43BSIKABZLK/bundle.json","state":"https://pith.science/pith/NNVPLOVUNWZVYZR43BSIKABZLK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NNVPLOVUNWZVYZR43BSIKABZLK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NNVPLOVUNWZVYZR43BSIKABZLK","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":"4c0d37e058b88c13d9529af34658450f907f57951f0274ce309863294b83bf5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-10T14:03:38Z","title_canon_sha256":"715966dbd43a0f61fa9ffd2d822eb4b3addc365feb5eb0ee9e803e25dd0e41e4"},"schema_version":"1.0","source":{"id":"1701.02596","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.02596","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"arxiv_version","alias_value":"1701.02596v2","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.02596","created_at":"2026-05-18T00:50:37Z"},{"alias_kind":"pith_short_12","alias_value":"NNVPLOVUNWZV","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NNVPLOVUNWZVYZR4","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NNVPLOVU","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:98b40114b57201358a707fb032b351219ecd349905c1259a3edd9ff43a844144","target":"graph","created_at":"2026-05-18T00:50:37Z","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":"With the advent of new wide-field, high-cadence optical transient surveys, our understanding of the diversity of core-collapse supernovae has grown tremendously in the last decade. However, the pre-supernova evolution of massive stars, that sets the physical backdrop to these violent events, is theoretically not well understood and difficult to probe observationally. Here we report the discovery of the supernova iPTF13dqy = SN 2013fs, a mere ~3 hr after explosion. Our rapid follow-up observations, which include multiwavelength photometry and extremely early (beginning at ~6 hr post-explosion) ","authors_text":"A. Gal-Yam, A. Horesh, A. Rubin, A. V. Filippenko, C. Fransson, D. A. Howell, D. A. Perley, D. Khazov, E. O. Ofek, F. Taddia, I. Arcavi, J. H. Groh, J. Sollerman, K. Maguire, M. M. Kasliwal, M. Sullivan, M. T. Soumagnac, N. Sapir, O. D. Fox, O. Gnat, O. Yaron, P. E. Nugent, P. L. Kelly, P. M. Vreeswijk, P. R. Wozniak, P. Szabo, R. R. Laher, S. B. Cenko, S. R. Kulkarni, S. Valenti, U. D. Rebbapragada, W. H. Lee, Y. Cao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-10T14:03:38Z","title":"Confined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.02596","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":"sha256:2ffd5fc4054add7f94405bca5980fcea510762e5a893c7385d15d3c5cf05da0f","target":"record","created_at":"2026-05-18T00:50:37Z","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":"4c0d37e058b88c13d9529af34658450f907f57951f0274ce309863294b83bf5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-01-10T14:03:38Z","title_canon_sha256":"715966dbd43a0f61fa9ffd2d822eb4b3addc365feb5eb0ee9e803e25dd0e41e4"},"schema_version":"1.0","source":{"id":"1701.02596","kind":"arxiv","version":2}},"canonical_sha256":"6b6af5bab46db35c663cd8648500395aa3c488e1fce15f17640adf1892aabf19","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b6af5bab46db35c663cd8648500395aa3c488e1fce15f17640adf1892aabf19","first_computed_at":"2026-05-18T00:50:37.383243Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:37.383243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pCgLwPeO1rt0U5YCYmGL+u4z935S4xFBiw+wHoo0YsCTnj9nOB1TcKja7ae5ydaLdr/g2CZ4WDov+OeoJjfJBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:37.383827Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.02596","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ffd5fc4054add7f94405bca5980fcea510762e5a893c7385d15d3c5cf05da0f","sha256:98b40114b57201358a707fb032b351219ecd349905c1259a3edd9ff43a844144"],"state_sha256":"53cac64a30c18eaa466a31b5521671a6ae4d3c76665afa884ed2804b9a8f256d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SLKiBaRv0tQkzwrLhDjr8wacI69KnJs8qvxrSDjJxA6eEn4EsgMBy57cxYFB1wQxdSq99ocUYZ8GMQ2nCOV8BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:38:25.326079Z","bundle_sha256":"00af1a86e9000516d27c86ac357cfec4e1cfe7c23de3eb2365d7a8afb07ca3d0"}}