{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:WDKRM2BFYFJ5QA4EOV7NP6LDNS","short_pith_number":"pith:WDKRM2BF","canonical_record":{"source":{"id":"2201.10279","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2022-01-25T12:43:06Z","cross_cats_sorted":[],"title_canon_sha256":"9736d6a7ffd264210bd9fc4b8f1a72acd29b12f089a107a87876e0bf16f22d47","abstract_canon_sha256":"9f38b4fbef901f74a8a57bf70aba47955b0da536d360caca91c9ad2f8bd8c4b3"},"schema_version":"1.0"},"canonical_sha256":"b0d5166825c153d80384757ed7f9636c9e294f20ca2605ad7fb302fa10f68fe2","source":{"kind":"arxiv","id":"2201.10279","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.10279","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"arxiv_version","alias_value":"2201.10279v2","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.10279","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_12","alias_value":"WDKRM2BFYFJ5","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_16","alias_value":"WDKRM2BFYFJ5QA4E","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_8","alias_value":"WDKRM2BF","created_at":"2026-07-05T05:05:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:WDKRM2BFYFJ5QA4EOV7NP6LDNS","target":"record","payload":{"canonical_record":{"source":{"id":"2201.10279","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2022-01-25T12:43:06Z","cross_cats_sorted":[],"title_canon_sha256":"9736d6a7ffd264210bd9fc4b8f1a72acd29b12f089a107a87876e0bf16f22d47","abstract_canon_sha256":"9f38b4fbef901f74a8a57bf70aba47955b0da536d360caca91c9ad2f8bd8c4b3"},"schema_version":"1.0"},"canonical_sha256":"b0d5166825c153d80384757ed7f9636c9e294f20ca2605ad7fb302fa10f68fe2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:05:02.720976Z","signature_b64":"QfbbGPiVSdPdEYT3QLdOF8BTZHMBSQ0yqeBPsksUvw0hHlLo/j/gMz3YZh3pmM8bT1fPijdwWwzj+A7yMDCdCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b0d5166825c153d80384757ed7f9636c9e294f20ca2605ad7fb302fa10f68fe2","last_reissued_at":"2026-07-05T05:05:02.720611Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:05:02.720611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.10279","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:05:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jp1VKK53bCFmpKcbSr/qPXe/W3Ab6Qt+jRbFSHmmxmNAw5bCeMA2DQdzS8aLroVj7JAkoy8K/KMLIngTqn4bCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:51:34.154940Z"},"content_sha256":"bc14035d524beadda822fdfc80b21cb9931d126b218801c20b49aa6424d78db6","schema_version":"1.0","event_id":"sha256:bc14035d524beadda822fdfc80b21cb9931d126b218801c20b49aa6424d78db6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:WDKRM2BFYFJ5QA4EOV7NP6LDNS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of Two-Stage Shattered Pellet Injection on Tokamak Disruptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"I. Pusztai, M. Hoppe, O. Vallhagen, S. L. Newton, T. F\\\"ul\\\"op","submitted_at":"2022-01-25T12:43:06Z","abstract_excerpt":"An effective disruption mitigation system in a tokamak reactor should limit the exposure of the wall to localized heat losses and to the impact of high current runaway electron beams, and avoid excessive forces on the structure. We evaluate with respect to these aspects a two-stage deuterium-neon shattered pellet injection in an ITER-like plasma, using simulations with the DREAM framework [M. Hoppe et al (2021) Comp. Phys. Commun. 268, 108098]. To minimize the obtained runaway currents an optimal range of injected deuterium quantities is found. This range is sensitive to the opacity of the pla"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.10279","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2201.10279/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T05:05:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CDvviSRXINKvm+Pj97G+dGEtqZAA074Om2++yti95o1yasZbHTPGBfNsRL8qrzeGZJzzkhaZfCfYAs3+/OpNCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:51:34.155596Z"},"content_sha256":"ede8cf523fd9a8f8f7d02a8bff3d7062a3fffe4ffdef742698562e3b495789c1","schema_version":"1.0","event_id":"sha256:ede8cf523fd9a8f8f7d02a8bff3d7062a3fffe4ffdef742698562e3b495789c1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/bundle.json","state_url":"https://pith.science/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/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":"2026-07-07T05:51:34Z","links":{"resolver":"https://pith.science/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS","bundle":"https://pith.science/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/bundle.json","state":"https://pith.science/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WDKRM2BFYFJ5QA4EOV7NP6LDNS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:WDKRM2BFYFJ5QA4EOV7NP6LDNS","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":"9f38b4fbef901f74a8a57bf70aba47955b0da536d360caca91c9ad2f8bd8c4b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2022-01-25T12:43:06Z","title_canon_sha256":"9736d6a7ffd264210bd9fc4b8f1a72acd29b12f089a107a87876e0bf16f22d47"},"schema_version":"1.0","source":{"id":"2201.10279","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.10279","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"arxiv_version","alias_value":"2201.10279v2","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.10279","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_12","alias_value":"WDKRM2BFYFJ5","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_16","alias_value":"WDKRM2BFYFJ5QA4E","created_at":"2026-07-05T05:05:02Z"},{"alias_kind":"pith_short_8","alias_value":"WDKRM2BF","created_at":"2026-07-05T05:05:02Z"}],"graph_snapshots":[{"event_id":"sha256:ede8cf523fd9a8f8f7d02a8bff3d7062a3fffe4ffdef742698562e3b495789c1","target":"graph","created_at":"2026-07-05T05:05:02Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2201.10279/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"An effective disruption mitigation system in a tokamak reactor should limit the exposure of the wall to localized heat losses and to the impact of high current runaway electron beams, and avoid excessive forces on the structure. We evaluate with respect to these aspects a two-stage deuterium-neon shattered pellet injection in an ITER-like plasma, using simulations with the DREAM framework [M. Hoppe et al (2021) Comp. Phys. Commun. 268, 108098]. To minimize the obtained runaway currents an optimal range of injected deuterium quantities is found. This range is sensitive to the opacity of the pla","authors_text":"I. Pusztai, M. Hoppe, O. Vallhagen, S. L. Newton, T. F\\\"ul\\\"op","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2022-01-25T12:43:06Z","title":"Effect of Two-Stage Shattered Pellet Injection on Tokamak Disruptions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.10279","kind":"arxiv","version":2},"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:bc14035d524beadda822fdfc80b21cb9931d126b218801c20b49aa6424d78db6","target":"record","created_at":"2026-07-05T05:05:02Z","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":"9f38b4fbef901f74a8a57bf70aba47955b0da536d360caca91c9ad2f8bd8c4b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2022-01-25T12:43:06Z","title_canon_sha256":"9736d6a7ffd264210bd9fc4b8f1a72acd29b12f089a107a87876e0bf16f22d47"},"schema_version":"1.0","source":{"id":"2201.10279","kind":"arxiv","version":2}},"canonical_sha256":"b0d5166825c153d80384757ed7f9636c9e294f20ca2605ad7fb302fa10f68fe2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0d5166825c153d80384757ed7f9636c9e294f20ca2605ad7fb302fa10f68fe2","first_computed_at":"2026-07-05T05:05:02.720611Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:05:02.720611Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QfbbGPiVSdPdEYT3QLdOF8BTZHMBSQ0yqeBPsksUvw0hHlLo/j/gMz3YZh3pmM8bT1fPijdwWwzj+A7yMDCdCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:05:02.720976Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.10279","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bc14035d524beadda822fdfc80b21cb9931d126b218801c20b49aa6424d78db6","sha256:ede8cf523fd9a8f8f7d02a8bff3d7062a3fffe4ffdef742698562e3b495789c1"],"state_sha256":"1e1d0d84025ae67ab9a5dc48e680e87535df331c43a0d19e3d37abbd4fe426f8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+yy5TNGX2WlrUWoCrNPkdpOq8OCX74eagOlXSF+1TOnU1WBGoqUMgAahNpp3/SlI51wH6DzlGlmtU4LufpLCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:51:34.159057Z","bundle_sha256":"618b643c29485ee9c12c0b5af99d40984fda1f55c3a163559864d088a1fd29c6"}}