{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:WBFHM5VU4ZJPZGIID4JFCJJ6NG","short_pith_number":"pith:WBFHM5VU","canonical_record":{"source":{"id":"2011.00135","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2020-10-30T23:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"d4ad7af082a43b8b75d3a869a85ee2c6565383155dfa88fb248445c25816096e","abstract_canon_sha256":"0354fa9f1d0790f85a6ad435090bbe5f8cdd104c8fb1b5592fddd480bcc099a9"},"schema_version":"1.0"},"canonical_sha256":"b04a7676b4e652fc99081f1251253e69ab917f485699a147642f6120ba8dac64","source":{"kind":"arxiv","id":"2011.00135","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00135","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00135v4","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00135","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"WBFHM5VU4ZJP","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"WBFHM5VU4ZJPZGII","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"WBFHM5VU","created_at":"2026-07-05T03:21:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:WBFHM5VU4ZJPZGIID4JFCJJ6NG","target":"record","payload":{"canonical_record":{"source":{"id":"2011.00135","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2020-10-30T23:03:30Z","cross_cats_sorted":[],"title_canon_sha256":"d4ad7af082a43b8b75d3a869a85ee2c6565383155dfa88fb248445c25816096e","abstract_canon_sha256":"0354fa9f1d0790f85a6ad435090bbe5f8cdd104c8fb1b5592fddd480bcc099a9"},"schema_version":"1.0"},"canonical_sha256":"b04a7676b4e652fc99081f1251253e69ab917f485699a147642f6120ba8dac64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:21:40.386782Z","signature_b64":"Th51c9KHtRu96Enyt5GsuFWYtPUpc1jcvuaTp6BrBumH5qu0+ujXk9IbZBpfPggOEWB7B+/A/pDJuu9JTRi8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b04a7676b4e652fc99081f1251253e69ab917f485699a147642f6120ba8dac64","last_reissued_at":"2026-07-05T03:21:40.386295Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:21:40.386295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.00135","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bDQx4FMurmYyV5cvw9XnzwBXCk4mcZVz5b01PiQQUfwQUA3Uuobz2iSzz4KFgQo4+Mi7Dt+qgbaK2fa5ELDJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:07:39.969802Z"},"content_sha256":"a5b3008e1ec259fd01a93cc14fe6aa7983214f1d7f22a07b013ba29b20b9bb8d","schema_version":"1.0","event_id":"sha256:a5b3008e1ec259fd01a93cc14fe6aa7983214f1d7f22a07b013ba29b20b9bb8d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:WBFHM5VU4ZJPZGIID4JFCJJ6NG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Laboratory evidence for proton energization by collisionless shock surfing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A. Ciardi, A. Fazzini, D. C. Popescu, E. D. Filippov, E. d'Humi\\`eres, G. Revet, J. B\\'eard, J. Fuchs, K. Burdonov, M. Miceli, P. Antici, Q. Moreno, R. Diab, S. Bola\\~nos, S. Kisyov, S. N. Chen, S. Orlando, S. Pikuz, V. Lelasseux, V. Nastasa, W. Yao, X. Ribeyre","submitted_at":"2020-10-30T23:03:30Z","abstract_excerpt":"Charged particles can be accelerated to high energies by collisionless shock waves in astrophysical environments, such as supernova remnants. By interacting with the magnetized ambient medium, these shocks can transfer energy to particles. Despite increasing efforts in the characterization of these shocks from satellite measurements at the Earth's bow shock and powerful numerical simulations, the underlying acceleration mechanism or a combination thereof is still widely debated. Here, we show that astrophysically relevant super-critical quasi-perpendicular magnetized collisionless shocks can b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00135","kind":"arxiv","version":4},"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/2011.00135/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":"2026-07-05T03:21:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cVqA+FJdGJobWroe86KQSMyfJOsVK3WkdO1XiomKQdMD4bMLlUpYvTYqwwAqMcUnvE+rJoo+AS177Co6drJ4CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T09:07:39.970163Z"},"content_sha256":"685155d8d49e9a5d8a7d679ef3470f84cd7f2c06b9506c04ec0bb7eb59dbc633","schema_version":"1.0","event_id":"sha256:685155d8d49e9a5d8a7d679ef3470f84cd7f2c06b9506c04ec0bb7eb59dbc633"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/bundle.json","state_url":"https://pith.science/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/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":"2026-07-05T09:07:39Z","links":{"resolver":"https://pith.science/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG","bundle":"https://pith.science/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/bundle.json","state":"https://pith.science/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WBFHM5VU4ZJPZGIID4JFCJJ6NG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:WBFHM5VU4ZJPZGIID4JFCJJ6NG","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":"0354fa9f1d0790f85a6ad435090bbe5f8cdd104c8fb1b5592fddd480bcc099a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2020-10-30T23:03:30Z","title_canon_sha256":"d4ad7af082a43b8b75d3a869a85ee2c6565383155dfa88fb248445c25816096e"},"schema_version":"1.0","source":{"id":"2011.00135","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00135","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00135v4","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00135","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_12","alias_value":"WBFHM5VU4ZJP","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_16","alias_value":"WBFHM5VU4ZJPZGII","created_at":"2026-07-05T03:21:40Z"},{"alias_kind":"pith_short_8","alias_value":"WBFHM5VU","created_at":"2026-07-05T03:21:40Z"}],"graph_snapshots":[{"event_id":"sha256:685155d8d49e9a5d8a7d679ef3470f84cd7f2c06b9506c04ec0bb7eb59dbc633","target":"graph","created_at":"2026-07-05T03:21:40Z","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/2011.00135/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Charged particles can be accelerated to high energies by collisionless shock waves in astrophysical environments, such as supernova remnants. By interacting with the magnetized ambient medium, these shocks can transfer energy to particles. Despite increasing efforts in the characterization of these shocks from satellite measurements at the Earth's bow shock and powerful numerical simulations, the underlying acceleration mechanism or a combination thereof is still widely debated. Here, we show that astrophysically relevant super-critical quasi-perpendicular magnetized collisionless shocks can b","authors_text":"A. Ciardi, A. Fazzini, D. C. Popescu, E. D. Filippov, E. d'Humi\\`eres, G. Revet, J. B\\'eard, J. Fuchs, K. Burdonov, M. Miceli, P. Antici, Q. Moreno, R. Diab, S. Bola\\~nos, S. Kisyov, S. N. Chen, S. Orlando, S. Pikuz, V. Lelasseux, V. Nastasa, W. Yao, X. Ribeyre","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2020-10-30T23:03:30Z","title":"Laboratory evidence for proton energization by collisionless shock surfing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00135","kind":"arxiv","version":4},"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:a5b3008e1ec259fd01a93cc14fe6aa7983214f1d7f22a07b013ba29b20b9bb8d","target":"record","created_at":"2026-07-05T03:21:40Z","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":"0354fa9f1d0790f85a6ad435090bbe5f8cdd104c8fb1b5592fddd480bcc099a9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2020-10-30T23:03:30Z","title_canon_sha256":"d4ad7af082a43b8b75d3a869a85ee2c6565383155dfa88fb248445c25816096e"},"schema_version":"1.0","source":{"id":"2011.00135","kind":"arxiv","version":4}},"canonical_sha256":"b04a7676b4e652fc99081f1251253e69ab917f485699a147642f6120ba8dac64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b04a7676b4e652fc99081f1251253e69ab917f485699a147642f6120ba8dac64","first_computed_at":"2026-07-05T03:21:40.386295Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:21:40.386295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Th51c9KHtRu96Enyt5GsuFWYtPUpc1jcvuaTp6BrBumH5qu0+ujXk9IbZBpfPggOEWB7B+/A/pDJuu9JTRi8BQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:21:40.386782Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.00135","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5b3008e1ec259fd01a93cc14fe6aa7983214f1d7f22a07b013ba29b20b9bb8d","sha256:685155d8d49e9a5d8a7d679ef3470f84cd7f2c06b9506c04ec0bb7eb59dbc633"],"state_sha256":"6f58c732e973cd9dbf80e5f0946e8070a4cfa9753458524728b705f1e68e6c0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NqJBjgKEH4c/vwVtpJM92Nf9L5QuqhpO2Dr3aqvQjVTglW4FNgzlgPai/rev5h4YjLYx1Hjk1QRoF6EboA+bCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T09:07:39.972063Z","bundle_sha256":"b896a580c931e3a12bbfcc2e1e1edb08c29f1e6f0d9ba1fd834a2e9004d37b72"}}