{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MTMCP4K2LJZEZBKYWYXWRXUBAJ","short_pith_number":"pith:MTMCP4K2","canonical_record":{"source":{"id":"1308.2512","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-08-12T10:09:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"4a7dad313d6e85bf41a917345e9f473256cbc4c6c582d9757ecc4f3d6bdf4a2a","abstract_canon_sha256":"e930b0d2cd7b48270a1022dcf59263ca7ca3b41397007e4a76dc182e3a080542"},"schema_version":"1.0"},"canonical_sha256":"64d827f15a5a724c8558b62f68de8102724ccd6faa563b9e84a88d4f3a9c5ad1","source":{"kind":"arxiv","id":"1308.2512","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2512","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2512v1","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2512","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"MTMCP4K2LJZE","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MTMCP4K2LJZEZBKY","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MTMCP4K2","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MTMCP4K2LJZEZBKYWYXWRXUBAJ","target":"record","payload":{"canonical_record":{"source":{"id":"1308.2512","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-08-12T10:09:24Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"4a7dad313d6e85bf41a917345e9f473256cbc4c6c582d9757ecc4f3d6bdf4a2a","abstract_canon_sha256":"e930b0d2cd7b48270a1022dcf59263ca7ca3b41397007e4a76dc182e3a080542"},"schema_version":"1.0"},"canonical_sha256":"64d827f15a5a724c8558b62f68de8102724ccd6faa563b9e84a88d4f3a9c5ad1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:07.163451Z","signature_b64":"K1z/GRqi6BMp3EKI621B4ocYGSzPcwK8Mo0Zj46BeoR1GYbAIjWoykH92SSvGron01XGC/6ZYO/XaCVqjFmNAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64d827f15a5a724c8558b62f68de8102724ccd6faa563b9e84a88d4f3a9c5ad1","last_reissued_at":"2026-05-18T03:16:07.162765Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:07.162765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1308.2512","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":"2026-05-18T03:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KM7bycHg4XHdBDdmb/iZTfJ865gON7gat068yySRclkgK/xpYo9QtTgJ3ob9Fx8rytH87oDL4xCWl3RgurrkDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:15:55.424558Z"},"content_sha256":"a9ceb2fd3ad0073def2ae1cc19abe8a05dde5186e1ebb9ad5b0ee39af299d73d","schema_version":"1.0","event_id":"sha256:a9ceb2fd3ad0073def2ae1cc19abe8a05dde5186e1ebb9ad5b0ee39af299d73d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MTMCP4K2LJZEZBKYWYXWRXUBAJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vectorial Radio Interferometry with LOPES 3D","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"A. Chiavassa, A. Haungs, A. Horneffer, A. Saftoiu, A. Schmid, A. Weindl, B. Fuchs, C. Grupen, C. Morello, C. R\\\"uhle, D. Fuhrmann, D. Heck, D. Huber, D. Kang, F. Di Pierro, F.G. Schr\\\"oder, G.C. Trinchero, G. Toma, H. Bozdog, H. Falcke, H. Gemmeke, H.J. Mathes, H. Rebel, H. Schieler, I.M. Brancus, J.A. Zensus, J. Bl\\\"umer, J.C. Arteaga, J. Kuijpers, J. Oehlschl\\\"ager, J. Rautenberg, J.R. H\\\"orandel, J. Wochele, J. Zabierowski, K. Bekk, K. Daumiller, K.H. Kampert, K. Link, L. B\\\"ahren, M. Bertaina, M. Ludwig, M. Melissas, M. Roth, M. Wommer, N. Palmieri, O. Kr\\\"omer, O. Sima, P. Doll, P.G. Isar, P.L. Biermann, P. {\\L}uczak, R. Engel, T. Huege, T. Pierog, V. de Souza, W.D. Apel","submitted_at":"2013-08-12T10:09:24Z","abstract_excerpt":"One successful detection technique for high-energy cosmic rays is based on the radio signal emitted by the charged particles in an air shower. The LOPES experiment at Karlsruhe Institute of Technology, Germany, has made major contributions to the evolution of this technique. LOPES was reconfigured several times to improve and further develop the radio detection technique. In the latest setup LOPES consisted of 10 tripole antennas. With this, LOPES 3D was the first cosmic ray experiment measuring all three vectorial field components at once and thereby gaining the full information about the ele"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2512","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":"2026-05-18T03:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hhJN7cKZdxD+MJqWRp+8inCxC48pIX6ULEPjog9S4sOfUEYrUGglDWueGVV4jtvBWqvULfsY1gYjS+zE2dbYCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T09:15:55.425024Z"},"content_sha256":"9b1bfb766f59e07104cdb51cbaa164b4c793507194867ee66ccc7d26d7af0f40","schema_version":"1.0","event_id":"sha256:9b1bfb766f59e07104cdb51cbaa164b4c793507194867ee66ccc7d26d7af0f40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/bundle.json","state_url":"https://pith.science/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/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":"2026-08-05T09:15:55Z","links":{"resolver":"https://pith.science/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ","bundle":"https://pith.science/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/bundle.json","state":"https://pith.science/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MTMCP4K2LJZEZBKYWYXWRXUBAJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MTMCP4K2LJZEZBKYWYXWRXUBAJ","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":"e930b0d2cd7b48270a1022dcf59263ca7ca3b41397007e4a76dc182e3a080542","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-08-12T10:09:24Z","title_canon_sha256":"4a7dad313d6e85bf41a917345e9f473256cbc4c6c582d9757ecc4f3d6bdf4a2a"},"schema_version":"1.0","source":{"id":"1308.2512","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1308.2512","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1308.2512v1","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.2512","created_at":"2026-05-18T03:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"MTMCP4K2LJZE","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MTMCP4K2LJZEZBKY","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MTMCP4K2","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:9b1bfb766f59e07104cdb51cbaa164b4c793507194867ee66ccc7d26d7af0f40","target":"graph","created_at":"2026-05-18T03:16:07Z","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":"One successful detection technique for high-energy cosmic rays is based on the radio signal emitted by the charged particles in an air shower. The LOPES experiment at Karlsruhe Institute of Technology, Germany, has made major contributions to the evolution of this technique. LOPES was reconfigured several times to improve and further develop the radio detection technique. In the latest setup LOPES consisted of 10 tripole antennas. With this, LOPES 3D was the first cosmic ray experiment measuring all three vectorial field components at once and thereby gaining the full information about the ele","authors_text":"A. Chiavassa, A. Haungs, A. Horneffer, A. Saftoiu, A. Schmid, A. Weindl, B. Fuchs, C. Grupen, C. Morello, C. R\\\"uhle, D. Fuhrmann, D. Heck, D. Huber, D. Kang, F. Di Pierro, F.G. Schr\\\"oder, G.C. Trinchero, G. Toma, H. Bozdog, H. Falcke, H. Gemmeke, H.J. Mathes, H. Rebel, H. Schieler, I.M. Brancus, J.A. Zensus, J. Bl\\\"umer, J.C. Arteaga, J. Kuijpers, J. Oehlschl\\\"ager, J. Rautenberg, J.R. H\\\"orandel, J. Wochele, J. Zabierowski, K. Bekk, K. Daumiller, K.H. Kampert, K. Link, L. B\\\"ahren, M. Bertaina, M. Ludwig, M. Melissas, M. Roth, M. Wommer, N. Palmieri, O. Kr\\\"omer, O. Sima, P. Doll, P.G. Isar, P.L. Biermann, P. {\\L}uczak, R. Engel, T. Huege, T. Pierog, V. de Souza, W.D. Apel","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-08-12T10:09:24Z","title":"Vectorial Radio Interferometry with LOPES 3D"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.2512","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:a9ceb2fd3ad0073def2ae1cc19abe8a05dde5186e1ebb9ad5b0ee39af299d73d","target":"record","created_at":"2026-05-18T03:16:07Z","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":"e930b0d2cd7b48270a1022dcf59263ca7ca3b41397007e4a76dc182e3a080542","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-08-12T10:09:24Z","title_canon_sha256":"4a7dad313d6e85bf41a917345e9f473256cbc4c6c582d9757ecc4f3d6bdf4a2a"},"schema_version":"1.0","source":{"id":"1308.2512","kind":"arxiv","version":1}},"canonical_sha256":"64d827f15a5a724c8558b62f68de8102724ccd6faa563b9e84a88d4f3a9c5ad1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"64d827f15a5a724c8558b62f68de8102724ccd6faa563b9e84a88d4f3a9c5ad1","first_computed_at":"2026-05-18T03:16:07.162765Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:07.162765Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"K1z/GRqi6BMp3EKI621B4ocYGSzPcwK8Mo0Zj46BeoR1GYbAIjWoykH92SSvGron01XGC/6ZYO/XaCVqjFmNAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:07.163451Z","signed_message":"canonical_sha256_bytes"},"source_id":"1308.2512","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9ceb2fd3ad0073def2ae1cc19abe8a05dde5186e1ebb9ad5b0ee39af299d73d","sha256:9b1bfb766f59e07104cdb51cbaa164b4c793507194867ee66ccc7d26d7af0f40"],"state_sha256":"b06def77aa8caa0d2144e3225fa501707c777ecac75741579048b9cdc1ec9c39"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"24M9VdPKtm0MaEdTjkaP2dHWmarWheJigE8P1sdyZVHv8i/i+A8bchQT4aCY1B+sJdS20gc4B9OH3wfVyIFFCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T09:15:55.429473Z","bundle_sha256":"11bda0302b1e03416d4118fb518d5872e82e2566e1f8a616362e8dd542157a17"}}