{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:YXWBSRZ4MIWGAGHSILJL3LCH73","short_pith_number":"pith:YXWBSRZ4","canonical_record":{"source":{"id":"1504.02936","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-12T06:28:27Z","cross_cats_sorted":[],"title_canon_sha256":"75a5a49fa3732ebe0ae879902389448c1cc32150934b85dede429c768698e7b7","abstract_canon_sha256":"093092277664c97b7625a075190e078cc41986d72782c83640be27b48ad60885"},"schema_version":"1.0"},"canonical_sha256":"c5ec19473c622c6018f242d2bdac47fecd4c996f38cda08d37accb0272222ff1","source":{"kind":"arxiv","id":"1504.02936","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02936","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02936v3","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02936","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"YXWBSRZ4MIWG","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"YXWBSRZ4MIWGAGHS","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"YXWBSRZ4","created_at":"2026-05-18T12:29:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:YXWBSRZ4MIWGAGHSILJL3LCH73","target":"record","payload":{"canonical_record":{"source":{"id":"1504.02936","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-12T06:28:27Z","cross_cats_sorted":[],"title_canon_sha256":"75a5a49fa3732ebe0ae879902389448c1cc32150934b85dede429c768698e7b7","abstract_canon_sha256":"093092277664c97b7625a075190e078cc41986d72782c83640be27b48ad60885"},"schema_version":"1.0"},"canonical_sha256":"c5ec19473c622c6018f242d2bdac47fecd4c996f38cda08d37accb0272222ff1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:03.808539Z","signature_b64":"VJSZHKZ7iEaOAF1+S1e9j129VUw/kXClt8vvsdZfo2YWclJMOU8fYALnBXWZr5bZM2vkawIbw2KgY90UNE7KAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5ec19473c622c6018f242d2bdac47fecd4c996f38cda08d37accb0272222ff1","last_reissued_at":"2026-05-18T01:24:03.807915Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:03.807915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.02936","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IQn1xFohs+gojeCyFqALjDG32QGR13jun+c+BlPmAsnzkZxb6lyomcMpQXZai9xeOaxgZsBjWb7+tTbfz6ouDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:50:32.736407Z"},"content_sha256":"9840339e13e8cdf6100292a3980373ced624f0eea1a7500a0b31baf64719917c","schema_version":"1.0","event_id":"sha256:9840339e13e8cdf6100292a3980373ced624f0eea1a7500a0b31baf64719917c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:YXWBSRZ4MIWGAGHSILJL3LCH73","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Automated Transient Identification in the Dark Energy Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. A. Plazas, A. Benoit-L\\'evy, A. Carnero Rosell, A. Fausti Neto, A. G. Kim, A. K. Romer, A. Papadopoulos, A. Roodman, A. R. Walker, B. Flaugher, B. Nord, C. B. D'Andrea, D. A. Finley, D. A. Goldstein, D. Brooks, D. Gerdes, D. Gruen, D. James, D. L. DePoy, E. Bertin, E. Sanchez, E. Suchyta, F. B. Abdalla, F. J. Castander, F. Sobreira, G. Tarle, H. T. Diehl, I. Sevilla-Noarbe, J. A. Fischer, J. Frieman, J. L. Marshall, J. Thaler, K. Kuehn, K. W. Merritt, L. N. da Costa, M. A. G. Maia, M. Banerji, M. E. C. Swanson, M. Makler, M. March, M. Sako, M. Schubnell, M. Smith, M. Soares-Santos, M. Sullivan, N. Kuropatkin, O. Lahav, P. Doel, P. Fosalba, P. Martini, P. Nugent, R. A. Gruendl, R. C. Nichol, R. Covarrubias, R. C. Smith, R. C. Thomas, R. C. Wolf, R. J. Foley, R. Kessler, R. Miquel, R. Ogando, R. R. Gupta, S. Desai, T. F. Eifler, T. S. Li, V. Scarpine, W. Wester","submitted_at":"2015-04-12T06:28:27Z","abstract_excerpt":"We describe an algorithm for identifying point-source transients and moving objects on reference-subtracted optical images containing artifacts of processing and instrumentation. The algorithm makes use of the supervised machine learning technique known as Random Forest. We present results from its use in the Dark Energy Survey Supernova program (DES-SN), where it was trained using a sample of 898,963 signal and background events generated by the transient detection pipeline. After reprocessing the data collected during the first DES-SN observing season (Sep. 2013 through Feb. 2014) using the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02936","kind":"arxiv","version":3},"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":"2026-05-18T01:24:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rxNOjygph+xZdjwirtlhUWhNFUpZpb0SVQMIIKYjhfS6rWvQnzoMefNx4UwWMeOc6P2Myd88Elmb4AsE34Y3BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T06:50:32.736785Z"},"content_sha256":"1243a3095009f3219d2165e3e36cd6702737b3e7dd05ca7d9329fa50dfbdc656","schema_version":"1.0","event_id":"sha256:1243a3095009f3219d2165e3e36cd6702737b3e7dd05ca7d9329fa50dfbdc656"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/bundle.json","state_url":"https://pith.science/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/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":"2026-06-04T06:50:32Z","links":{"resolver":"https://pith.science/pith/YXWBSRZ4MIWGAGHSILJL3LCH73","bundle":"https://pith.science/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/bundle.json","state":"https://pith.science/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YXWBSRZ4MIWGAGHSILJL3LCH73/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:YXWBSRZ4MIWGAGHSILJL3LCH73","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":"093092277664c97b7625a075190e078cc41986d72782c83640be27b48ad60885","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-12T06:28:27Z","title_canon_sha256":"75a5a49fa3732ebe0ae879902389448c1cc32150934b85dede429c768698e7b7"},"schema_version":"1.0","source":{"id":"1504.02936","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.02936","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"arxiv_version","alias_value":"1504.02936v3","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.02936","created_at":"2026-05-18T01:24:03Z"},{"alias_kind":"pith_short_12","alias_value":"YXWBSRZ4MIWG","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_16","alias_value":"YXWBSRZ4MIWGAGHS","created_at":"2026-05-18T12:29:52Z"},{"alias_kind":"pith_short_8","alias_value":"YXWBSRZ4","created_at":"2026-05-18T12:29:52Z"}],"graph_snapshots":[{"event_id":"sha256:1243a3095009f3219d2165e3e36cd6702737b3e7dd05ca7d9329fa50dfbdc656","target":"graph","created_at":"2026-05-18T01:24:03Z","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":"We describe an algorithm for identifying point-source transients and moving objects on reference-subtracted optical images containing artifacts of processing and instrumentation. The algorithm makes use of the supervised machine learning technique known as Random Forest. We present results from its use in the Dark Energy Survey Supernova program (DES-SN), where it was trained using a sample of 898,963 signal and background events generated by the transient detection pipeline. After reprocessing the data collected during the first DES-SN observing season (Sep. 2013 through Feb. 2014) using the ","authors_text":"A. A. Plazas, A. Benoit-L\\'evy, A. Carnero Rosell, A. Fausti Neto, A. G. Kim, A. K. Romer, A. Papadopoulos, A. Roodman, A. R. Walker, B. Flaugher, B. Nord, C. B. D'Andrea, D. A. Finley, D. A. Goldstein, D. Brooks, D. Gerdes, D. Gruen, D. James, D. L. DePoy, E. Bertin, E. Sanchez, E. Suchyta, F. B. Abdalla, F. J. Castander, F. Sobreira, G. Tarle, H. T. Diehl, I. Sevilla-Noarbe, J. A. Fischer, J. Frieman, J. L. Marshall, J. Thaler, K. Kuehn, K. W. Merritt, L. N. da Costa, M. A. G. Maia, M. Banerji, M. E. C. Swanson, M. Makler, M. March, M. Sako, M. Schubnell, M. Smith, M. Soares-Santos, M. Sullivan, N. Kuropatkin, O. Lahav, P. Doel, P. Fosalba, P. Martini, P. Nugent, R. A. Gruendl, R. C. Nichol, R. Covarrubias, R. C. Smith, R. C. Thomas, R. C. Wolf, R. J. Foley, R. Kessler, R. Miquel, R. Ogando, R. R. Gupta, S. Desai, T. F. Eifler, T. S. Li, V. Scarpine, W. Wester","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-12T06:28:27Z","title":"Automated Transient Identification in the Dark Energy Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.02936","kind":"arxiv","version":3},"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":"sha256:9840339e13e8cdf6100292a3980373ced624f0eea1a7500a0b31baf64719917c","target":"record","created_at":"2026-05-18T01:24:03Z","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":"093092277664c97b7625a075190e078cc41986d72782c83640be27b48ad60885","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-04-12T06:28:27Z","title_canon_sha256":"75a5a49fa3732ebe0ae879902389448c1cc32150934b85dede429c768698e7b7"},"schema_version":"1.0","source":{"id":"1504.02936","kind":"arxiv","version":3}},"canonical_sha256":"c5ec19473c622c6018f242d2bdac47fecd4c996f38cda08d37accb0272222ff1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5ec19473c622c6018f242d2bdac47fecd4c996f38cda08d37accb0272222ff1","first_computed_at":"2026-05-18T01:24:03.807915Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:03.807915Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VJSZHKZ7iEaOAF1+S1e9j129VUw/kXClt8vvsdZfo2YWclJMOU8fYALnBXWZr5bZM2vkawIbw2KgY90UNE7KAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:03.808539Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.02936","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9840339e13e8cdf6100292a3980373ced624f0eea1a7500a0b31baf64719917c","sha256:1243a3095009f3219d2165e3e36cd6702737b3e7dd05ca7d9329fa50dfbdc656"],"state_sha256":"ee904fcf2f4742740c7eb8c9fdbb1103350e7315fe43f2f08e071a3c78eb029d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P9cB6NYBoZg+FABQSh+2DPkwxxAROSybHw5i49yuBKjT+YUlkZHtu8qyX1Q5JXkL6dJ6f2MdxrHzpl0gp1VKBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T06:50:32.739119Z","bundle_sha256":"abe9539c2531b0884899b818ca1646e0a33517f5601aafd93a0ec1298ab01bcb"}}