{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:Y7E5SILS2BAN74CIXEYC5R3J3V","short_pith_number":"pith:Y7E5SILS","canonical_record":{"source":{"id":"1411.1405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-05T21:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"4244844558637485698b59d724dd611437a54d7084059597affbdef747813ed6","abstract_canon_sha256":"fd16055234dca781ade93ea86c943bdb4516b23f1489f9973136e33f3c26f3bd"},"schema_version":"1.0"},"canonical_sha256":"c7c9d92172d040dff048b9302ec769dd59359c0a19b9df584f25e1b2cc8ee37e","source":{"kind":"arxiv","id":"1411.1405","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.1405","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1411.1405v1","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.1405","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"Y7E5SILS2BAN","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"Y7E5SILS2BAN74CI","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"Y7E5SILS","created_at":"2026-05-18T12:28:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:Y7E5SILS2BAN74CIXEYC5R3J3V","target":"record","payload":{"canonical_record":{"source":{"id":"1411.1405","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-05T21:00:03Z","cross_cats_sorted":[],"title_canon_sha256":"4244844558637485698b59d724dd611437a54d7084059597affbdef747813ed6","abstract_canon_sha256":"fd16055234dca781ade93ea86c943bdb4516b23f1489f9973136e33f3c26f3bd"},"schema_version":"1.0"},"canonical_sha256":"c7c9d92172d040dff048b9302ec769dd59359c0a19b9df584f25e1b2cc8ee37e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:46.905302Z","signature_b64":"fw4jAXtG0i6vRxxCsiGF6/x8VYnnYNZYg1IPqW2bG0B7lZlOQYgs2OgC6XOESe9M8lYhkPbFRmSEUQ6WeSN8CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c7c9d92172d040dff048b9302ec769dd59359c0a19b9df584f25e1b2cc8ee37e","last_reissued_at":"2026-05-18T02:29:46.904790Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:46.904790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1411.1405","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":"2026-05-18T02:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NIzFu9bLlKgjIgBM2wWIssTECJUcwMVkWlgaNGZx8PGfktA0YMgJbZBQtXg8hs/+OAW8EupJbMVUmAOnl5aZAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:24:52.892178Z"},"content_sha256":"7d462d78d3011135d4e11e216b0c92d163262d81cf07c0bf8ad6c6a0c3cd638d","schema_version":"1.0","event_id":"sha256:7d462d78d3011135d4e11e216b0c92d163262d81cf07c0bf8ad6c6a0c3cd638d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:Y7E5SILS2BAN74CIXEYC5R3J3V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar Flare Prediction Using SDO/HMI Vector Magnetic Field Data with a Machine-Learning Algorithm","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Monica G. Bobra, Sebastien Couvidat","submitted_at":"2014-11-05T21:00:03Z","abstract_excerpt":"We attempt to forecast M-and X-class solar flares using a machine-learning algorithm, called Support Vector Machine (SVM), and four years of data from the Solar Dynamics Observatory's Helioseismic and Magnetic Imager, the first instrument to continuously map the full-disk photospheric vector magnetic field from space. Most flare forecasting efforts described in the literature use either line-of-sight magnetograms or a relatively small number of ground-based vector magnetograms. This is the first time a large dataset of vector magnetograms has been used to forecast solar flares. We build a cata"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1405","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":"2026-05-18T02:29:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qQx+CjqCktXOqNVMmYmcdO+EI6/erfUhLouMH+ud+E8irzLdLK5hGY6cNhSymZ9l9VbjF0qhc2HKj3bQClcRDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T09:24:52.892538Z"},"content_sha256":"c5134c028aa44fcd52f893eebeffa4c222d8004d89f3f4de1b540eda67df370d","schema_version":"1.0","event_id":"sha256:c5134c028aa44fcd52f893eebeffa4c222d8004d89f3f4de1b540eda67df370d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/bundle.json","state_url":"https://pith.science/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/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":"2026-06-05T09:24:52Z","links":{"resolver":"https://pith.science/pith/Y7E5SILS2BAN74CIXEYC5R3J3V","bundle":"https://pith.science/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/bundle.json","state":"https://pith.science/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Y7E5SILS2BAN74CIXEYC5R3J3V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:Y7E5SILS2BAN74CIXEYC5R3J3V","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":"fd16055234dca781ade93ea86c943bdb4516b23f1489f9973136e33f3c26f3bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-05T21:00:03Z","title_canon_sha256":"4244844558637485698b59d724dd611437a54d7084059597affbdef747813ed6"},"schema_version":"1.0","source":{"id":"1411.1405","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1411.1405","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"arxiv_version","alias_value":"1411.1405v1","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.1405","created_at":"2026-05-18T02:29:46Z"},{"alias_kind":"pith_short_12","alias_value":"Y7E5SILS2BAN","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_16","alias_value":"Y7E5SILS2BAN74CI","created_at":"2026-05-18T12:28:57Z"},{"alias_kind":"pith_short_8","alias_value":"Y7E5SILS","created_at":"2026-05-18T12:28:57Z"}],"graph_snapshots":[{"event_id":"sha256:c5134c028aa44fcd52f893eebeffa4c222d8004d89f3f4de1b540eda67df370d","target":"graph","created_at":"2026-05-18T02:29:46Z","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 attempt to forecast M-and X-class solar flares using a machine-learning algorithm, called Support Vector Machine (SVM), and four years of data from the Solar Dynamics Observatory's Helioseismic and Magnetic Imager, the first instrument to continuously map the full-disk photospheric vector magnetic field from space. Most flare forecasting efforts described in the literature use either line-of-sight magnetograms or a relatively small number of ground-based vector magnetograms. This is the first time a large dataset of vector magnetograms has been used to forecast solar flares. We build a cata","authors_text":"Monica G. Bobra, Sebastien Couvidat","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-05T21:00:03Z","title":"Solar Flare Prediction Using SDO/HMI Vector Magnetic Field Data with a Machine-Learning Algorithm"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.1405","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":"sha256:7d462d78d3011135d4e11e216b0c92d163262d81cf07c0bf8ad6c6a0c3cd638d","target":"record","created_at":"2026-05-18T02:29:46Z","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":"fd16055234dca781ade93ea86c943bdb4516b23f1489f9973136e33f3c26f3bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-11-05T21:00:03Z","title_canon_sha256":"4244844558637485698b59d724dd611437a54d7084059597affbdef747813ed6"},"schema_version":"1.0","source":{"id":"1411.1405","kind":"arxiv","version":1}},"canonical_sha256":"c7c9d92172d040dff048b9302ec769dd59359c0a19b9df584f25e1b2cc8ee37e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c7c9d92172d040dff048b9302ec769dd59359c0a19b9df584f25e1b2cc8ee37e","first_computed_at":"2026-05-18T02:29:46.904790Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:29:46.904790Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fw4jAXtG0i6vRxxCsiGF6/x8VYnnYNZYg1IPqW2bG0B7lZlOQYgs2OgC6XOESe9M8lYhkPbFRmSEUQ6WeSN8CA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:29:46.905302Z","signed_message":"canonical_sha256_bytes"},"source_id":"1411.1405","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d462d78d3011135d4e11e216b0c92d163262d81cf07c0bf8ad6c6a0c3cd638d","sha256:c5134c028aa44fcd52f893eebeffa4c222d8004d89f3f4de1b540eda67df370d"],"state_sha256":"5fb3111e8b6e9ddb826c2dc7607aca09f392f7f395f0953b1dd66dc0953d2a51"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T4UVXyHKlrEFzZyhJ3q8V2LJIhjjCjgN//kiXpv4QkAK2uEc0Se+X2qx+uZidwhcxXwfK5AOppb9REhREO9aCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T09:24:52.894485Z","bundle_sha256":"42dc317b67e2c471cf899b2bb8dee0942db27c42a9ed790780a983b60489d138"}}