{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:YQKE7LT6KX2DY5IG5W7NW4GDSQ","short_pith_number":"pith:YQKE7LT6","canonical_record":{"source":{"id":"1812.06893","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-12-17T17:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"64c545858d1ef527af57602ebaa1afc6131e04c81e57042008fb9b8d39a59b38","abstract_canon_sha256":"410b40a62b69bad3cc0f4ace71e02328205c088bb872fd46a8baa2f1637c66e8"},"schema_version":"1.0"},"canonical_sha256":"c4144fae7e55f43c7506edbedb70c3941d6904963eedfe1a413a2b48b04e02a2","source":{"kind":"arxiv","id":"1812.06893","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06893","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06893v2","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06893","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"pith_short_12","alias_value":"YQKE7LT6KX2D","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YQKE7LT6KX2DY5IG","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YQKE7LT6","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:YQKE7LT6KX2DY5IG5W7NW4GDSQ","target":"record","payload":{"canonical_record":{"source":{"id":"1812.06893","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-12-17T17:00:09Z","cross_cats_sorted":[],"title_canon_sha256":"64c545858d1ef527af57602ebaa1afc6131e04c81e57042008fb9b8d39a59b38","abstract_canon_sha256":"410b40a62b69bad3cc0f4ace71e02328205c088bb872fd46a8baa2f1637c66e8"},"schema_version":"1.0"},"canonical_sha256":"c4144fae7e55f43c7506edbedb70c3941d6904963eedfe1a413a2b48b04e02a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:31.710477Z","signature_b64":"LWMe5aI6jWlpiLt7lbDi/berVyRPMatTRUNgDNGsRBsOjX6BctZZnG8f18WjuL08DXfBOzp/ZOLYwmeDc2YTDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4144fae7e55f43c7506edbedb70c3941d6904963eedfe1a413a2b48b04e02a2","last_reissued_at":"2026-05-17T23:45:31.709781Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:31.709781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.06893","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":"2026-05-17T23:45:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hHbEZ+gMFyv9a2Ay7EoKiIdh1PzjTGmzus6O5LTDKf/DWv1Y5eJArDIwl6qdwqW2Mmw0Al6PaKZymkOk1/X5DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:28:58.998252Z"},"content_sha256":"fc01f84321b5d70f7f44005ecb9449c57704b2e902a92ccc7da11b488afbd008","schema_version":"1.0","event_id":"sha256:fc01f84321b5d70f7f44005ecb9449c57704b2e902a92ccc7da11b488afbd008"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:YQKE7LT6KX2DY5IG5W7NW4GDSQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Current Status and New Challenges of The Tunka Radio Extension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Haungs, A. Pakhorukov, A. Zagorodnikov, D. Chernykh, D. Kostunin, D. Shipilov, E.E. Korosteleva, E. Osipova, F.G. Schr\\\"oder, L.A. Kuzmichev, L. Pankov, M. Kleifges, N. Lubsandorzhiev, N.M. Budnev, O.A. Gress, O. Fedorov, P.A. Bezyazeekov, R. Hiller, R. Monkhoev, T. Huege, T. Marshalkina, V. Lenok, V.V. Prosin, Y. Kazarina","submitted_at":"2018-12-17T17:00:09Z","abstract_excerpt":"The Tunka Radio Extension (Tunka-Rex) is an antenna array spread over an area of about 1~km$^2$. The array is placed at the Tunka Advanced Instrument for cosmic rays and Gamma Astronomy (TAIGA) and detects the radio emission of air showers in the band of 30 to 80~MHz. During the last years it was shown that a sparse array such as Tunka-Rex is capable of reconstructing the parameters of the primary particle as accurate as the modern instruments. Based on these results we continue developing our data analysis. Our next goal is the reconstruction of cosmic-ray energy spectrum observed only by a r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06893","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":"2026-05-17T23:45:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xlFd93ZeYrt1mJ4Qk/lJFBWb70+dVY81kyIHqVNV+kAptc8ub4bLfdtOtBo651mpZcvZCga6d9OhYBHxmr7mDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T09:28:58.998966Z"},"content_sha256":"f4be044242aaa0bb21e8c1cec5749d5cc2936188cf7088bf2abe8a910dd13df9","schema_version":"1.0","event_id":"sha256:f4be044242aaa0bb21e8c1cec5749d5cc2936188cf7088bf2abe8a910dd13df9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/bundle.json","state_url":"https://pith.science/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/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":"2026-08-07T09:28:59Z","links":{"resolver":"https://pith.science/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ","bundle":"https://pith.science/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/bundle.json","state":"https://pith.science/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YQKE7LT6KX2DY5IG5W7NW4GDSQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:YQKE7LT6KX2DY5IG5W7NW4GDSQ","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":"410b40a62b69bad3cc0f4ace71e02328205c088bb872fd46a8baa2f1637c66e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-12-17T17:00:09Z","title_canon_sha256":"64c545858d1ef527af57602ebaa1afc6131e04c81e57042008fb9b8d39a59b38"},"schema_version":"1.0","source":{"id":"1812.06893","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06893","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06893v2","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06893","created_at":"2026-05-17T23:45:31Z"},{"alias_kind":"pith_short_12","alias_value":"YQKE7LT6KX2D","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"YQKE7LT6KX2DY5IG","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"YQKE7LT6","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:f4be044242aaa0bb21e8c1cec5749d5cc2936188cf7088bf2abe8a910dd13df9","target":"graph","created_at":"2026-05-17T23:45:31Z","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":"The Tunka Radio Extension (Tunka-Rex) is an antenna array spread over an area of about 1~km$^2$. The array is placed at the Tunka Advanced Instrument for cosmic rays and Gamma Astronomy (TAIGA) and detects the radio emission of air showers in the band of 30 to 80~MHz. During the last years it was shown that a sparse array such as Tunka-Rex is capable of reconstructing the parameters of the primary particle as accurate as the modern instruments. Based on these results we continue developing our data analysis. Our next goal is the reconstruction of cosmic-ray energy spectrum observed only by a r","authors_text":"A. Haungs, A. Pakhorukov, A. Zagorodnikov, D. Chernykh, D. Kostunin, D. Shipilov, E.E. Korosteleva, E. Osipova, F.G. Schr\\\"oder, L.A. Kuzmichev, L. Pankov, M. Kleifges, N. Lubsandorzhiev, N.M. Budnev, O.A. Gress, O. Fedorov, P.A. Bezyazeekov, R. Hiller, R. Monkhoev, T. Huege, T. Marshalkina, V. Lenok, V.V. Prosin, Y. Kazarina","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-12-17T17:00:09Z","title":"Current Status and New Challenges of The Tunka Radio Extension"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06893","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:fc01f84321b5d70f7f44005ecb9449c57704b2e902a92ccc7da11b488afbd008","target":"record","created_at":"2026-05-17T23:45:31Z","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":"410b40a62b69bad3cc0f4ace71e02328205c088bb872fd46a8baa2f1637c66e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2018-12-17T17:00:09Z","title_canon_sha256":"64c545858d1ef527af57602ebaa1afc6131e04c81e57042008fb9b8d39a59b38"},"schema_version":"1.0","source":{"id":"1812.06893","kind":"arxiv","version":2}},"canonical_sha256":"c4144fae7e55f43c7506edbedb70c3941d6904963eedfe1a413a2b48b04e02a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4144fae7e55f43c7506edbedb70c3941d6904963eedfe1a413a2b48b04e02a2","first_computed_at":"2026-05-17T23:45:31.709781Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:31.709781Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LWMe5aI6jWlpiLt7lbDi/berVyRPMatTRUNgDNGsRBsOjX6BctZZnG8f18WjuL08DXfBOzp/ZOLYwmeDc2YTDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:31.710477Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.06893","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fc01f84321b5d70f7f44005ecb9449c57704b2e902a92ccc7da11b488afbd008","sha256:f4be044242aaa0bb21e8c1cec5749d5cc2936188cf7088bf2abe8a910dd13df9"],"state_sha256":"56f03ba7c1b47342d0bbc9ddda4e87a723e86207e842e7b3cb2c2e9f21f987bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4EYzZXLIg+g7L9KFGsC0fw5Ku2x09UWtZM4g2CLVWaGMnvhC67tuq3ypZeWyBGOKnucTXNhSc8RKFm59jySsCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T09:28:59.002511Z","bundle_sha256":"bc7c50ee9e2e6e6a26647f477af1cc151b521a3e4c8b0a3d60a2b30c4bc8f0f2"}}