{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:UKNLOQTBRJVQEUF7UUMFV3FK5Y","short_pith_number":"pith:UKNLOQTB","canonical_record":{"source":{"id":"2312.04630","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-07T19:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"7536d614ddf8eb2c0c5ebd0d8dedbc251f20a4b117eda478796bb965508938c5","abstract_canon_sha256":"05a25748dd2c7b3f7b614bc8e47b044b2110fa637d0d6e96e07065e56daf7011"},"schema_version":"1.0"},"canonical_sha256":"a29ab742618a6b0250bfa5185aecaaee2c7adf8b9c09a4b5135a739af8d18710","source":{"kind":"arxiv","id":"2312.04630","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.04630","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"arxiv_version","alias_value":"2312.04630v2","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.04630","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_12","alias_value":"UKNLOQTBRJVQ","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_16","alias_value":"UKNLOQTBRJVQEUF7","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_8","alias_value":"UKNLOQTB","created_at":"2026-07-05T08:05:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:UKNLOQTBRJVQEUF7UUMFV3FK5Y","target":"record","payload":{"canonical_record":{"source":{"id":"2312.04630","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-07T19:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"7536d614ddf8eb2c0c5ebd0d8dedbc251f20a4b117eda478796bb965508938c5","abstract_canon_sha256":"05a25748dd2c7b3f7b614bc8e47b044b2110fa637d0d6e96e07065e56daf7011"},"schema_version":"1.0"},"canonical_sha256":"a29ab742618a6b0250bfa5185aecaaee2c7adf8b9c09a4b5135a739af8d18710","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:05:54.470279Z","signature_b64":"muDg4+JMagfR57hv+k9+S4UUyJwKYsEP4XaNknAjJJDaPemlCRsd7mC4rn3RxACR1mGu7da4DyECADx2KmUcAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a29ab742618a6b0250bfa5185aecaaee2c7adf8b9c09a4b5135a739af8d18710","last_reissued_at":"2026-07-05T08:05:54.469806Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:05:54.469806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.04630","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":"2026-07-05T08:05:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lt26FT5Jis88IdnnpqnDhqM0WF3VYzTAvYBISmJlxw9uxl81AgaYOa7c1BXM0VkfAHewxyQG/LyPX82RPX/ABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T20:45:42.899193Z"},"content_sha256":"2ab05d04d8d3dc99184b98eafde92d3e70b887e1ea979ebd7577dcc3c50ed81a","schema_version":"1.0","event_id":"sha256:2ab05d04d8d3dc99184b98eafde92d3e70b887e1ea979ebd7577dcc3c50ed81a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:UKNLOQTBRJVQEUF7UUMFV3FK5Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Hubble Space Telescope Search for r-Process Nucleosynthesis in Gamma-ray Burst Supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. J. Levan, A. Melandri, A. Rossi, A. S. Fruchter, B. D. Metzger, B. Milvang-Jensen, C. D. Kilpatrick, D. B. Malesani, D. H. Hartmann, D. M. Siegel, E. Pian, G. Halevi, G. P. Lamb, G. Pugliese, G. Stratta, J. C. Rastinejad (CIERA/Northwestern), J. P. U. Fynbo, K. Bhirombhakdi, K. E. Heintz, L. Izzo, N. R. Tanvir, P. Jakobsson, P. Singh, S. Anand, S. Covino, W. Fong","submitted_at":"2023-12-07T19:00:02Z","abstract_excerpt":"The existence of a secondary (in addition to compact object mergers) source of heavy element ($r$-process) nucleosynthesis, the core-collapse of rapidly-rotating and highly-magnetized massive stars, has been suggested by both simulations and indirect observational evidence. Here, we probe a predicted signature of $r$-process enrichment, a late-time ($\\gtrsim 40$ days post-burst) distinct red color, in observations of GRB-supernovae (GRB-SNe) which are linked to these massive star progenitors. We present optical to near-IR color measurements of four GRB-SNe at $z \\lesssim 0.4$, extending out to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.04630","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2312.04630/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T08:05:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oh82DNo5C0RW3NZGiEmZial/356oTrmuv+U1gjVIwO9yp+LPMnEtQjFAhMUnxiEHPoT6T4bJoWUlzjWJQ17BDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T20:45:42.900064Z"},"content_sha256":"20af2f38b98a02fe09c5094398d8bf2310c34584deca619c73b2e206cb937ac7","schema_version":"1.0","event_id":"sha256:20af2f38b98a02fe09c5094398d8bf2310c34584deca619c73b2e206cb937ac7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/bundle.json","state_url":"https://pith.science/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/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":"2026-08-18T20:45:42Z","links":{"resolver":"https://pith.science/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y","bundle":"https://pith.science/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/bundle.json","state":"https://pith.science/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UKNLOQTBRJVQEUF7UUMFV3FK5Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:UKNLOQTBRJVQEUF7UUMFV3FK5Y","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":"05a25748dd2c7b3f7b614bc8e47b044b2110fa637d0d6e96e07065e56daf7011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-07T19:00:02Z","title_canon_sha256":"7536d614ddf8eb2c0c5ebd0d8dedbc251f20a4b117eda478796bb965508938c5"},"schema_version":"1.0","source":{"id":"2312.04630","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.04630","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"arxiv_version","alias_value":"2312.04630v2","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.04630","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_12","alias_value":"UKNLOQTBRJVQ","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_16","alias_value":"UKNLOQTBRJVQEUF7","created_at":"2026-07-05T08:05:54Z"},{"alias_kind":"pith_short_8","alias_value":"UKNLOQTB","created_at":"2026-07-05T08:05:54Z"}],"graph_snapshots":[{"event_id":"sha256:20af2f38b98a02fe09c5094398d8bf2310c34584deca619c73b2e206cb937ac7","target":"graph","created_at":"2026-07-05T08:05:54Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2312.04630/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The existence of a secondary (in addition to compact object mergers) source of heavy element ($r$-process) nucleosynthesis, the core-collapse of rapidly-rotating and highly-magnetized massive stars, has been suggested by both simulations and indirect observational evidence. Here, we probe a predicted signature of $r$-process enrichment, a late-time ($\\gtrsim 40$ days post-burst) distinct red color, in observations of GRB-supernovae (GRB-SNe) which are linked to these massive star progenitors. We present optical to near-IR color measurements of four GRB-SNe at $z \\lesssim 0.4$, extending out to","authors_text":"A. J. Levan, A. Melandri, A. Rossi, A. S. Fruchter, B. D. Metzger, B. Milvang-Jensen, C. D. Kilpatrick, D. B. Malesani, D. H. Hartmann, D. M. Siegel, E. Pian, G. Halevi, G. P. Lamb, G. Pugliese, G. Stratta, J. C. Rastinejad (CIERA/Northwestern), J. P. U. Fynbo, K. Bhirombhakdi, K. E. Heintz, L. Izzo, N. R. Tanvir, P. Jakobsson, P. Singh, S. Anand, S. Covino, W. Fong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-07T19:00:02Z","title":"A Hubble Space Telescope Search for r-Process Nucleosynthesis in Gamma-ray Burst Supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.04630","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":"sha256:2ab05d04d8d3dc99184b98eafde92d3e70b887e1ea979ebd7577dcc3c50ed81a","target":"record","created_at":"2026-07-05T08:05:54Z","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":"05a25748dd2c7b3f7b614bc8e47b044b2110fa637d0d6e96e07065e56daf7011","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-12-07T19:00:02Z","title_canon_sha256":"7536d614ddf8eb2c0c5ebd0d8dedbc251f20a4b117eda478796bb965508938c5"},"schema_version":"1.0","source":{"id":"2312.04630","kind":"arxiv","version":2}},"canonical_sha256":"a29ab742618a6b0250bfa5185aecaaee2c7adf8b9c09a4b5135a739af8d18710","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a29ab742618a6b0250bfa5185aecaaee2c7adf8b9c09a4b5135a739af8d18710","first_computed_at":"2026-07-05T08:05:54.469806Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:05:54.469806Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"muDg4+JMagfR57hv+k9+S4UUyJwKYsEP4XaNknAjJJDaPemlCRsd7mC4rn3RxACR1mGu7da4DyECADx2KmUcAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:05:54.470279Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.04630","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ab05d04d8d3dc99184b98eafde92d3e70b887e1ea979ebd7577dcc3c50ed81a","sha256:20af2f38b98a02fe09c5094398d8bf2310c34584deca619c73b2e206cb937ac7"],"state_sha256":"fab4f9cc36a1983eca04a6a155be8d63f7b53fc98495182a878abb46a1978336"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HfjSWM1bPCpw7W8LSfXCdFMBo2hSSLVCRaSqgWrPSh+gN6RJkfUBRaqeU69hTaD6GIb88pcf3VM9a7W0ehCQBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T20:45:42.969561Z","bundle_sha256":"c9e43c0bdef7e963bf09ac9427f6af9435f02b9d31f0e63d40f8cf9cce73dfcd"}}