{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:KYKEOIJBTVUV2RJE2SAYKV2FDU","short_pith_number":"pith:KYKEOIJB","canonical_record":{"source":{"id":"1309.5289","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-20T15:00:52Z","cross_cats_sorted":[],"title_canon_sha256":"20b41014d93f2b68ea09d5f1d1d9926af3c2c68f0d37edb0ba0b8f908dc8cc54","abstract_canon_sha256":"4f2a6c5f6f4770305430bbe8c8888e1ebc27b2c5614fae5fe4ad4a3840fab8a6"},"schema_version":"1.0"},"canonical_sha256":"56144721219d695d4524d4818557451d25904401eee2e64184aba467d77f0cb5","source":{"kind":"arxiv","id":"1309.5289","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5289","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5289v1","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5289","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"KYKEOIJBTVUV","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYKEOIJBTVUV2RJE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYKEOIJB","created_at":"2026-05-18T12:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:KYKEOIJBTVUV2RJE2SAYKV2FDU","target":"record","payload":{"canonical_record":{"source":{"id":"1309.5289","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-20T15:00:52Z","cross_cats_sorted":[],"title_canon_sha256":"20b41014d93f2b68ea09d5f1d1d9926af3c2c68f0d37edb0ba0b8f908dc8cc54","abstract_canon_sha256":"4f2a6c5f6f4770305430bbe8c8888e1ebc27b2c5614fae5fe4ad4a3840fab8a6"},"schema_version":"1.0"},"canonical_sha256":"56144721219d695d4524d4818557451d25904401eee2e64184aba467d77f0cb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:35.019033Z","signature_b64":"gp+sk9nILxuA0GQqnqrxQoWWXMxX5PzuYheSrDv9dEstYj2FDfdYrWVIfuRlkgbBqpw9Pcdo63f+rwO/MgL9Dg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56144721219d695d4524d4818557451d25904401eee2e64184aba467d77f0cb5","last_reissued_at":"2026-05-18T01:47:35.018557Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:35.018557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.5289","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":"2026-05-18T01:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZm8Fp0LjO3b/X01SOj4fbv4SCigT8NtoGEB3wjUDoLQ4midkjox1pZug6k71yYn5OEHf6eYl90DmYWtVPuXBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:41:44.130766Z"},"content_sha256":"8cd294d80f2d9b1cc693bb09ba4cb562b611ee64e325e383c2274b563ef0651c","schema_version":"1.0","event_id":"sha256:8cd294d80f2d9b1cc693bb09ba4cb562b611ee64e325e383c2274b563ef0651c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:KYKEOIJBTVUV2RJE2SAYKV2FDU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic Geometry and Physics of Advanced Divertors: The X-Divertor and the Snowflake","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Brent Covele, Mike Kotschenreuther, Prashant Valanju, Swadesh Mahajan","submitted_at":"2013-09-20T15:00:52Z","abstract_excerpt":"Advanced divertors are magnetic geometries where a second X-point is added in the divertor region to address the serious challenges of burning plasma power exhaust. Invoking physical arguments, numerical work, and detailed model magnetic field analysis, we investigate the magnetic field structure of advanced divertors in the physically relevant region for power exhaust - the Scrape-Off Layer (SOL). A primary result of our analysis is the emergence of a physical \"metric\", the Divertor Index DI, that quantifies the flux expansion increase as one goes from the main X-point to the strike point. It"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5289","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":"2026-05-18T01:47:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ua3QYfU5rn7U72S+FmqrRq0Qw+rsahda+bEUcf0/w/hPyVRzmWHW339UK+mWb5D0ykKdHk5xja3UUOrZYCoeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:41:44.131366Z"},"content_sha256":"3d956ec0d2a74efd8f28a24d32ff55719e0040ce61671c8ed1ea6cc75804a125","schema_version":"1.0","event_id":"sha256:3d956ec0d2a74efd8f28a24d32ff55719e0040ce61671c8ed1ea6cc75804a125"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/bundle.json","state_url":"https://pith.science/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/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":"2026-05-31T04:41:44Z","links":{"resolver":"https://pith.science/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU","bundle":"https://pith.science/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/bundle.json","state":"https://pith.science/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KYKEOIJBTVUV2RJE2SAYKV2FDU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:KYKEOIJBTVUV2RJE2SAYKV2FDU","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":"4f2a6c5f6f4770305430bbe8c8888e1ebc27b2c5614fae5fe4ad4a3840fab8a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-20T15:00:52Z","title_canon_sha256":"20b41014d93f2b68ea09d5f1d1d9926af3c2c68f0d37edb0ba0b8f908dc8cc54"},"schema_version":"1.0","source":{"id":"1309.5289","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5289","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5289v1","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5289","created_at":"2026-05-18T01:47:35Z"},{"alias_kind":"pith_short_12","alias_value":"KYKEOIJBTVUV","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"KYKEOIJBTVUV2RJE","created_at":"2026-05-18T12:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"KYKEOIJB","created_at":"2026-05-18T12:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:3d956ec0d2a74efd8f28a24d32ff55719e0040ce61671c8ed1ea6cc75804a125","target":"graph","created_at":"2026-05-18T01:47:35Z","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":"Advanced divertors are magnetic geometries where a second X-point is added in the divertor region to address the serious challenges of burning plasma power exhaust. Invoking physical arguments, numerical work, and detailed model magnetic field analysis, we investigate the magnetic field structure of advanced divertors in the physically relevant region for power exhaust - the Scrape-Off Layer (SOL). A primary result of our analysis is the emergence of a physical \"metric\", the Divertor Index DI, that quantifies the flux expansion increase as one goes from the main X-point to the strike point. It","authors_text":"Brent Covele, Mike Kotschenreuther, Prashant Valanju, Swadesh Mahajan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-20T15:00:52Z","title":"Magnetic Geometry and Physics of Advanced Divertors: The X-Divertor and the Snowflake"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5289","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":"sha256:8cd294d80f2d9b1cc693bb09ba4cb562b611ee64e325e383c2274b563ef0651c","target":"record","created_at":"2026-05-18T01:47:35Z","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":"4f2a6c5f6f4770305430bbe8c8888e1ebc27b2c5614fae5fe4ad4a3840fab8a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-09-20T15:00:52Z","title_canon_sha256":"20b41014d93f2b68ea09d5f1d1d9926af3c2c68f0d37edb0ba0b8f908dc8cc54"},"schema_version":"1.0","source":{"id":"1309.5289","kind":"arxiv","version":1}},"canonical_sha256":"56144721219d695d4524d4818557451d25904401eee2e64184aba467d77f0cb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56144721219d695d4524d4818557451d25904401eee2e64184aba467d77f0cb5","first_computed_at":"2026-05-18T01:47:35.018557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:35.018557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gp+sk9nILxuA0GQqnqrxQoWWXMxX5PzuYheSrDv9dEstYj2FDfdYrWVIfuRlkgbBqpw9Pcdo63f+rwO/MgL9Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:35.019033Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.5289","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8cd294d80f2d9b1cc693bb09ba4cb562b611ee64e325e383c2274b563ef0651c","sha256:3d956ec0d2a74efd8f28a24d32ff55719e0040ce61671c8ed1ea6cc75804a125"],"state_sha256":"74ece1bde6959d98d45366b010d20de6a794e7900db43a8b3c3cec7272c353c6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UOROC7pplHHfduoRDi23VoEJlPy9bmewJgeIsec34IJxYqrrrtN5E64J5salKJzq/Xin/wKnaFgQWhZLfI9CBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:41:44.134100Z","bundle_sha256":"03d28dc229368988896587763c62445f0f8572f079d5eedd26d77a3b6809e50c"}}