{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:YE5U3DWVOEESW7N25OCEIK5TTU","short_pith_number":"pith:YE5U3DWV","canonical_record":{"source":{"id":"1306.4971","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-06-20T19:44:42Z","cross_cats_sorted":[],"title_canon_sha256":"e3fbdb8c46c897d09b9e8f2ce1f9d34cdc8e8f06b1e48c366363dfc459aa3363","abstract_canon_sha256":"950811c743f1d2b247d41b9bea8711dc00bb5bbdcda175074413cd2b778c1038"},"schema_version":"1.0"},"canonical_sha256":"c13b4d8ed571092b7dbaeb84442bb39d26215dd64ba81348360b67bb7e7d0734","source":{"kind":"arxiv","id":"1306.4971","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4971","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4971v2","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4971","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YE5U3DWVOEES","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YE5U3DWVOEESW7N2","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YE5U3DWV","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:YE5U3DWVOEESW7N25OCEIK5TTU","target":"record","payload":{"canonical_record":{"source":{"id":"1306.4971","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-06-20T19:44:42Z","cross_cats_sorted":[],"title_canon_sha256":"e3fbdb8c46c897d09b9e8f2ce1f9d34cdc8e8f06b1e48c366363dfc459aa3363","abstract_canon_sha256":"950811c743f1d2b247d41b9bea8711dc00bb5bbdcda175074413cd2b778c1038"},"schema_version":"1.0"},"canonical_sha256":"c13b4d8ed571092b7dbaeb84442bb39d26215dd64ba81348360b67bb7e7d0734","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:14.230198Z","signature_b64":"cd2dvfFDh+WrdJQtP33qLTiiMbS9X4K+LZgHYRNT1Li+10PwH/QpGXjxPiP9aq1GfvLlk/QLR0rVTjQ77wsaCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c13b4d8ed571092b7dbaeb84442bb39d26215dd64ba81348360b67bb7e7d0734","last_reissued_at":"2026-05-18T01:49:14.229663Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:14.229663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.4971","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":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yrl8oJsdw73iCsz6K2EcfyXCm6X4nlByEQJiEvARbDOEuvGM0Kf8c/q6Z0/vQolLaWpz8zOjJC13AUa6LWx7Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:44:44.963840Z"},"content_sha256":"02bbc964b69669610931ba7c6fd6a3bae4c46d497fe3899ab9a66e37e180a18c","schema_version":"1.0","event_id":"sha256:02bbc964b69669610931ba7c6fd6a3bae4c46d497fe3899ab9a66e37e180a18c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:YE5U3DWVOEESW7N25OCEIK5TTU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A \"kilonova\" associated with short-duration gamma-ray burst 130603B","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. J. Levan, A. S. Fruchter, J. Hjorth, K. Wiersema, N. R. Tanvir, R. A. Hounsell, R. Tunnicliffe","submitted_at":"2013-06-20T19:44:42Z","abstract_excerpt":"Short-duration gamma-ray bursts (SGRBs) are intense flashes of cosmic gamma-rays, lasting less than ~2 s, whose origin is one of the great unsolved questions of astrophysics today. While the favoured hypothesis for their production, a relativistic jet created by the merger of two compact stellar objects (specifically, two neutron stars, NS-NS, or a neutron star and a black hole, NS-BH), is supported by indirect evidence such as their host galaxy properties, unambiguous confirmation of the model is still lacking. Mergers of this kind are also expected to create significant quantities of neutron"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4971","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":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E0XQSyjrzZ0Bk6WqnhbW5YyU+w1Ixaeg4anjIMaE7CWnFvKsKyDA2Xc1nd1V2kQDff7Zabr9e8pxE/L+LmoXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T13:44:44.964177Z"},"content_sha256":"0cf3b40d879c57819ac296e8fc37fbe726bf2599de5bd159925f870caa1404ef","schema_version":"1.0","event_id":"sha256:0cf3b40d879c57819ac296e8fc37fbe726bf2599de5bd159925f870caa1404ef"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YE5U3DWVOEESW7N25OCEIK5TTU/bundle.json","state_url":"https://pith.science/pith/YE5U3DWVOEESW7N25OCEIK5TTU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YE5U3DWVOEESW7N25OCEIK5TTU/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":"2026-06-05T13:44:44Z","links":{"resolver":"https://pith.science/pith/YE5U3DWVOEESW7N25OCEIK5TTU","bundle":"https://pith.science/pith/YE5U3DWVOEESW7N25OCEIK5TTU/bundle.json","state":"https://pith.science/pith/YE5U3DWVOEESW7N25OCEIK5TTU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YE5U3DWVOEESW7N25OCEIK5TTU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:YE5U3DWVOEESW7N25OCEIK5TTU","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":"950811c743f1d2b247d41b9bea8711dc00bb5bbdcda175074413cd2b778c1038","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-06-20T19:44:42Z","title_canon_sha256":"e3fbdb8c46c897d09b9e8f2ce1f9d34cdc8e8f06b1e48c366363dfc459aa3363"},"schema_version":"1.0","source":{"id":"1306.4971","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.4971","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.4971v2","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.4971","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"YE5U3DWVOEES","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"YE5U3DWVOEESW7N2","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"YE5U3DWV","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:0cf3b40d879c57819ac296e8fc37fbe726bf2599de5bd159925f870caa1404ef","target":"graph","created_at":"2026-05-18T01:49:14Z","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":"Short-duration gamma-ray bursts (SGRBs) are intense flashes of cosmic gamma-rays, lasting less than ~2 s, whose origin is one of the great unsolved questions of astrophysics today. While the favoured hypothesis for their production, a relativistic jet created by the merger of two compact stellar objects (specifically, two neutron stars, NS-NS, or a neutron star and a black hole, NS-BH), is supported by indirect evidence such as their host galaxy properties, unambiguous confirmation of the model is still lacking. Mergers of this kind are also expected to create significant quantities of neutron","authors_text":"A. J. Levan, A. S. Fruchter, J. Hjorth, K. Wiersema, N. R. Tanvir, R. A. Hounsell, R. Tunnicliffe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-06-20T19:44:42Z","title":"A \"kilonova\" associated with short-duration gamma-ray burst 130603B"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.4971","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":"sha256:02bbc964b69669610931ba7c6fd6a3bae4c46d497fe3899ab9a66e37e180a18c","target":"record","created_at":"2026-05-18T01:49:14Z","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":"950811c743f1d2b247d41b9bea8711dc00bb5bbdcda175074413cd2b778c1038","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-06-20T19:44:42Z","title_canon_sha256":"e3fbdb8c46c897d09b9e8f2ce1f9d34cdc8e8f06b1e48c366363dfc459aa3363"},"schema_version":"1.0","source":{"id":"1306.4971","kind":"arxiv","version":2}},"canonical_sha256":"c13b4d8ed571092b7dbaeb84442bb39d26215dd64ba81348360b67bb7e7d0734","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c13b4d8ed571092b7dbaeb84442bb39d26215dd64ba81348360b67bb7e7d0734","first_computed_at":"2026-05-18T01:49:14.229663Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:14.229663Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cd2dvfFDh+WrdJQtP33qLTiiMbS9X4K+LZgHYRNT1Li+10PwH/QpGXjxPiP9aq1GfvLlk/QLR0rVTjQ77wsaCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:14.230198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.4971","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:02bbc964b69669610931ba7c6fd6a3bae4c46d497fe3899ab9a66e37e180a18c","sha256:0cf3b40d879c57819ac296e8fc37fbe726bf2599de5bd159925f870caa1404ef"],"state_sha256":"9897b9723945faaf66245adae550acf2b5a805ecdf053fac309c3e715fcb7674"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mONktD7c8t6a2svW2OKGV/uFncF8/r2fpCNcvsVBTVQBvg1qwbpF56a+hHLVk6elFhFMt70nV5WNOFQCYT5pCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T13:44:44.966135Z","bundle_sha256":"329b6277dd2f56ecd5394195a08d4d2ce0aa0306689833130ffc41e5c61f4e1b"}}