{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:KLQ6IR2QGAAZ4QE7BYJGNNF7AI","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":"b1ce1b2b431ecbc5cab0185527ae179afac894a04071fb37b9e758071cba2d57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2014-10-31T18:18:15Z","title_canon_sha256":"b08264be68ebcfca8b1c7900bd282793b684a23923c8027ebaff150c416a69bb"},"schema_version":"1.0","source":{"id":"1410.8834","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.8834","created_at":"2026-05-18T02:38:53Z"},{"alias_kind":"arxiv_version","alias_value":"1410.8834v1","created_at":"2026-05-18T02:38:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.8834","created_at":"2026-05-18T02:38:53Z"},{"alias_kind":"pith_short_12","alias_value":"KLQ6IR2QGAAZ","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"KLQ6IR2QGAAZ4QE7","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"KLQ6IR2Q","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:64061414777811d9e90bf81cc325574cd2393ec637dc03d1a3f7605c371813e9","target":"graph","created_at":"2026-05-18T02:38:53Z","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":"A classification technique for identifying focal mechanism type and fault plane orientation based on the polarity of P-wave \"first motion\" data is derived. A support vector machine is used to classify the polarity data in the space of spherical harmonic functions. The classification is non-parametric in the sense that there is no requirement to make a priori assumptions source mechanism. A metric of similarity potentially able to distinguish shear versus tensile dislocation without requiring estimation of the fault plane orientation is a natural consequence of this procedure. Going further, co","authors_text":"Ben G. Lasscock, Brendon J. Hall, Michael E. Glinsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2014-10-31T18:18:15Z","title":"Focal mechanism estimation by classification"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8834","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:d5660cd858afe19639d23e10587db69c0aa88aaeeed40c14d8981cdf89176978","target":"record","created_at":"2026-05-18T02:38:53Z","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":"b1ce1b2b431ecbc5cab0185527ae179afac894a04071fb37b9e758071cba2d57","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.geo-ph","submitted_at":"2014-10-31T18:18:15Z","title_canon_sha256":"b08264be68ebcfca8b1c7900bd282793b684a23923c8027ebaff150c416a69bb"},"schema_version":"1.0","source":{"id":"1410.8834","kind":"arxiv","version":1}},"canonical_sha256":"52e1e4475030019e409f0e1266b4bf02092a595b25ec48a98a94fa3eccdb87ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52e1e4475030019e409f0e1266b4bf02092a595b25ec48a98a94fa3eccdb87ba","first_computed_at":"2026-05-18T02:38:53.618728Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:38:53.618728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8TCM/KiKiFeG0YZmJXw+K9lP0h+3NYilaxzvZGHYn5KqUknAB/fGGP6ONlE8+jI7Q1bDHtiDFOSiqgntDTIIDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:38:53.619174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.8834","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d5660cd858afe19639d23e10587db69c0aa88aaeeed40c14d8981cdf89176978","sha256:64061414777811d9e90bf81cc325574cd2393ec637dc03d1a3f7605c371813e9"],"state_sha256":"cfc99b9e4b8838ba0d4b7bec8770ce847fa3e9bc5938de0a08b54f24a72e4731"}