{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:CFANI7PS5CHX2HZJJZE2BEI65C","short_pith_number":"pith:CFANI7PS","canonical_record":{"source":{"id":"1712.02201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-11-20T09:40:23Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"cf17853869abe873976ca2dcf6179382bd5e407b6f5f10b880f8badc7af031b0","abstract_canon_sha256":"f509f666e140e1294a638ade6b230ee60ba96c755094255d8de0d1fb279f9675"},"schema_version":"1.0"},"canonical_sha256":"1140d47df2e88f7d1f294e49a0911ee8847d1cd6176234d59e15cd4899e545a6","source":{"kind":"arxiv","id":"1712.02201","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.02201","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"arxiv_version","alias_value":"1712.02201v1","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.02201","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"pith_short_12","alias_value":"CFANI7PS5CHX","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CFANI7PS5CHX2HZJ","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CFANI7PS","created_at":"2026-05-18T12:31:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:CFANI7PS5CHX2HZJJZE2BEI65C","target":"record","payload":{"canonical_record":{"source":{"id":"1712.02201","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-11-20T09:40:23Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"cf17853869abe873976ca2dcf6179382bd5e407b6f5f10b880f8badc7af031b0","abstract_canon_sha256":"f509f666e140e1294a638ade6b230ee60ba96c755094255d8de0d1fb279f9675"},"schema_version":"1.0"},"canonical_sha256":"1140d47df2e88f7d1f294e49a0911ee8847d1cd6176234d59e15cd4899e545a6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:38.860554Z","signature_b64":"TpmgOA9Raa0Vzsqe9dsVlw71i5o54U8AuBPkCkXrb6pFlam+QsmTGFlJTdgeldpFpK7BM5L4zHWPM7PJQogSDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1140d47df2e88f7d1f294e49a0911ee8847d1cd6176234d59e15cd4899e545a6","last_reissued_at":"2026-05-18T00:28:38.859858Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:38.859858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.02201","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":"2026-05-18T00:28:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u8WjI9WTaCB2B2wjAGLo5XMtksARmX5I/GIbWZHK5h6NIZ3ca5O/2Is/L+Rd61CCYTE8l1d847jv4wZq1zruBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:20:19.486070Z"},"content_sha256":"c6053dcb177e99e41fcb88fe1d9eb9e9997cc7137bd162a10cd4228dbf9fb9a2","schema_version":"1.0","event_id":"sha256:c6053dcb177e99e41fcb88fe1d9eb9e9997cc7137bd162a10cd4228dbf9fb9a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:CFANI7PS5CHX2HZJJZE2BEI65C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Targeting realistic geometry in Tokamak code Gysela","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.plasm-ph","authors_text":"Camilla Bressan, Guillaume Latu, Michel Mehrenberger, Nicolas Bouzat, Virginie Grandgirard","submitted_at":"2017-11-20T09:40:23Z","abstract_excerpt":"In magnetically confined plasmas used in Tokamak, turbulence is responsible for specific transport that limits the performance of this kind of reactors. Gyrokinetic simulations are able to capture ion and electron turbulence that give rise to heat losses, but require also state-of-the-art HPC techniques to handle computation costs. Such simulations are a major tool to establish good operating regime in Tokamak such as ITER, which is currently being built. Some of the key issues to address more realistic gyrokinetic simulations are: efficient and robust numerical schemes, accurate geometric des"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.02201","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":"2026-05-18T00:28:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n86AH52RPdOyIQNOjVZo59T5BlOyxAD5YrTmznRCA48tYbi8WCnzJzE4b7xTqD/1cbjSOzcDEUr4VyhAzNSzAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T18:20:19.486438Z"},"content_sha256":"f89e00af2e01cc2d88070d8aecf3d6716edf5baeaf40b49d2830dc7682eec076","schema_version":"1.0","event_id":"sha256:f89e00af2e01cc2d88070d8aecf3d6716edf5baeaf40b49d2830dc7682eec076"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CFANI7PS5CHX2HZJJZE2BEI65C/bundle.json","state_url":"https://pith.science/pith/CFANI7PS5CHX2HZJJZE2BEI65C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CFANI7PS5CHX2HZJJZE2BEI65C/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":"2026-06-04T18:20:19Z","links":{"resolver":"https://pith.science/pith/CFANI7PS5CHX2HZJJZE2BEI65C","bundle":"https://pith.science/pith/CFANI7PS5CHX2HZJJZE2BEI65C/bundle.json","state":"https://pith.science/pith/CFANI7PS5CHX2HZJJZE2BEI65C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CFANI7PS5CHX2HZJJZE2BEI65C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CFANI7PS5CHX2HZJJZE2BEI65C","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":"f509f666e140e1294a638ade6b230ee60ba96c755094255d8de0d1fb279f9675","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-11-20T09:40:23Z","title_canon_sha256":"cf17853869abe873976ca2dcf6179382bd5e407b6f5f10b880f8badc7af031b0"},"schema_version":"1.0","source":{"id":"1712.02201","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.02201","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"arxiv_version","alias_value":"1712.02201v1","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.02201","created_at":"2026-05-18T00:28:38Z"},{"alias_kind":"pith_short_12","alias_value":"CFANI7PS5CHX","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CFANI7PS5CHX2HZJ","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CFANI7PS","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:f89e00af2e01cc2d88070d8aecf3d6716edf5baeaf40b49d2830dc7682eec076","target":"graph","created_at":"2026-05-18T00:28:38Z","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":"In magnetically confined plasmas used in Tokamak, turbulence is responsible for specific transport that limits the performance of this kind of reactors. Gyrokinetic simulations are able to capture ion and electron turbulence that give rise to heat losses, but require also state-of-the-art HPC techniques to handle computation costs. Such simulations are a major tool to establish good operating regime in Tokamak such as ITER, which is currently being built. Some of the key issues to address more realistic gyrokinetic simulations are: efficient and robust numerical schemes, accurate geometric des","authors_text":"Camilla Bressan, Guillaume Latu, Michel Mehrenberger, Nicolas Bouzat, Virginie Grandgirard","cross_cats":["physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-11-20T09:40:23Z","title":"Targeting realistic geometry in Tokamak code Gysela"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.02201","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:c6053dcb177e99e41fcb88fe1d9eb9e9997cc7137bd162a10cd4228dbf9fb9a2","target":"record","created_at":"2026-05-18T00:28:38Z","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":"f509f666e140e1294a638ade6b230ee60ba96c755094255d8de0d1fb279f9675","cross_cats_sorted":["physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-11-20T09:40:23Z","title_canon_sha256":"cf17853869abe873976ca2dcf6179382bd5e407b6f5f10b880f8badc7af031b0"},"schema_version":"1.0","source":{"id":"1712.02201","kind":"arxiv","version":1}},"canonical_sha256":"1140d47df2e88f7d1f294e49a0911ee8847d1cd6176234d59e15cd4899e545a6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1140d47df2e88f7d1f294e49a0911ee8847d1cd6176234d59e15cd4899e545a6","first_computed_at":"2026-05-18T00:28:38.859858Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:38.859858Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TpmgOA9Raa0Vzsqe9dsVlw71i5o54U8AuBPkCkXrb6pFlam+QsmTGFlJTdgeldpFpK7BM5L4zHWPM7PJQogSDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:38.860554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.02201","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6053dcb177e99e41fcb88fe1d9eb9e9997cc7137bd162a10cd4228dbf9fb9a2","sha256:f89e00af2e01cc2d88070d8aecf3d6716edf5baeaf40b49d2830dc7682eec076"],"state_sha256":"ff0afdfcf24f245a0954bd1f2f2a8e9b647df38de1b444da1414176d0aeef211"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GNm7iLYRbmN0Hp+g+NME7MWEl6KAjBAs6w+lF9TLU3JO/Q7BaIG9CXwJn5gDZOW3mruUe2Wvc36hIS2u67FeCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T18:20:19.488435Z","bundle_sha256":"1473cc832ef92d23e775bc11779d94eaaca76df74c537765ad12fddb806370b2"}}