{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:RI3DPYBAUQGWHVK3I2GMAKRJM6","short_pith_number":"pith:RI3DPYBA","canonical_record":{"source":{"id":"1709.09926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-28T12:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"9fc8667fddf22344456c2ad0a287c34a7b6fd421ba8d777580d11efb64624c92","abstract_canon_sha256":"bdbfd0826e30b008916c0ec34f828e8488f4a41a91e3f235bd6a520dc5c4f8bc"},"schema_version":"1.0"},"canonical_sha256":"8a3637e020a40d63d55b468cc02a2967afe532dc01402265e7131b01db602082","source":{"kind":"arxiv","id":"1709.09926","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.09926","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"arxiv_version","alias_value":"1709.09926v1","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.09926","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"pith_short_12","alias_value":"RI3DPYBAUQGW","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RI3DPYBAUQGWHVK3","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RI3DPYBA","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:RI3DPYBAUQGWHVK3I2GMAKRJM6","target":"record","payload":{"canonical_record":{"source":{"id":"1709.09926","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-28T12:55:49Z","cross_cats_sorted":[],"title_canon_sha256":"9fc8667fddf22344456c2ad0a287c34a7b6fd421ba8d777580d11efb64624c92","abstract_canon_sha256":"bdbfd0826e30b008916c0ec34f828e8488f4a41a91e3f235bd6a520dc5c4f8bc"},"schema_version":"1.0"},"canonical_sha256":"8a3637e020a40d63d55b468cc02a2967afe532dc01402265e7131b01db602082","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:28.471199Z","signature_b64":"Y3Cssj5bmYGRNtILVEhvEpEmxSRwQS/GbYuP6AzwwYf69MVwbiQLtfE++2Lqs6QBaB+cGJgJt2Ss8LWU1daRDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a3637e020a40d63d55b468cc02a2967afe532dc01402265e7131b01db602082","last_reissued_at":"2026-05-18T00:29:28.470633Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:28.470633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.09926","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":"2026-05-18T00:29:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"shaDIvlAy9xirPA7tAkzvkPxmHbyAzJcNimstT5y7wyw01UR3xbTA74NlxQ2KmyuXW8wN2tG+/1vC2Bf8sDBBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:29:38.839245Z"},"content_sha256":"6da7729e5e0db6c6f039d50612d628628413b25e7831ec9e37b7af1922475bb2","schema_version":"1.0","event_id":"sha256:6da7729e5e0db6c6f039d50612d628628413b25e7831ec9e37b7af1922475bb2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:RI3DPYBAUQGWHVK3I2GMAKRJM6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Charge proportional and weakly mass-dependent acceleration of different ion species in the Earth's magnetotail","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"A. Greco, A. Retino, D. Delcourt, F. Catapano, G. Zimbardo, I. J. Cohen, S. Perri","submitted_at":"2017-09-28T12:55:49Z","abstract_excerpt":"Energetic particles with energies from tens of keV to a few hundreds keV are frequently observed in the Earth's magnetotail. Here we study, by means of a test particle numerical simulation, the acceleration of different ion species (H$^{+}$, He$^{+}$, He$^{++}$, and O$^{n+}$ with $n=1$--$6$) in the presence of transient electromagnetic perturbations. All the considered ions develop power-law tails at high energies, except for O$^+$ ions. This is strongly correlated to the time that the particle spend in the current sheet. Ion acceleration is found to be proportional to the charge state, while "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.09926","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":"2026-05-18T00:29:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5epMP7ItF8oJDbEyROWY2lwvR8R60dO6FwQPvAJi+Coakf0seIIreIoafsCB0EeEaAhMctXneBASDkssGdAOCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T09:29:38.839873Z"},"content_sha256":"71267bf89dbb2e45da88a919f967069b6740965e46f223d9fea61c15eb9a58ce","schema_version":"1.0","event_id":"sha256:71267bf89dbb2e45da88a919f967069b6740965e46f223d9fea61c15eb9a58ce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/bundle.json","state_url":"https://pith.science/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/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":"2026-05-25T09:29:38Z","links":{"resolver":"https://pith.science/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6","bundle":"https://pith.science/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/bundle.json","state":"https://pith.science/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RI3DPYBAUQGWHVK3I2GMAKRJM6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:RI3DPYBAUQGWHVK3I2GMAKRJM6","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":"bdbfd0826e30b008916c0ec34f828e8488f4a41a91e3f235bd6a520dc5c4f8bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-28T12:55:49Z","title_canon_sha256":"9fc8667fddf22344456c2ad0a287c34a7b6fd421ba8d777580d11efb64624c92"},"schema_version":"1.0","source":{"id":"1709.09926","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.09926","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"arxiv_version","alias_value":"1709.09926v1","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.09926","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"pith_short_12","alias_value":"RI3DPYBAUQGW","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"RI3DPYBAUQGWHVK3","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"RI3DPYBA","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:71267bf89dbb2e45da88a919f967069b6740965e46f223d9fea61c15eb9a58ce","target":"graph","created_at":"2026-05-18T00:29:28Z","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":"Energetic particles with energies from tens of keV to a few hundreds keV are frequently observed in the Earth's magnetotail. Here we study, by means of a test particle numerical simulation, the acceleration of different ion species (H$^{+}$, He$^{+}$, He$^{++}$, and O$^{n+}$ with $n=1$--$6$) in the presence of transient electromagnetic perturbations. All the considered ions develop power-law tails at high energies, except for O$^+$ ions. This is strongly correlated to the time that the particle spend in the current sheet. Ion acceleration is found to be proportional to the charge state, while ","authors_text":"A. Greco, A. Retino, D. Delcourt, F. Catapano, G. Zimbardo, I. J. Cohen, S. Perri","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-28T12:55:49Z","title":"Charge proportional and weakly mass-dependent acceleration of different ion species in the Earth's magnetotail"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.09926","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":"sha256:6da7729e5e0db6c6f039d50612d628628413b25e7831ec9e37b7af1922475bb2","target":"record","created_at":"2026-05-18T00:29:28Z","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":"bdbfd0826e30b008916c0ec34f828e8488f4a41a91e3f235bd6a520dc5c4f8bc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2017-09-28T12:55:49Z","title_canon_sha256":"9fc8667fddf22344456c2ad0a287c34a7b6fd421ba8d777580d11efb64624c92"},"schema_version":"1.0","source":{"id":"1709.09926","kind":"arxiv","version":1}},"canonical_sha256":"8a3637e020a40d63d55b468cc02a2967afe532dc01402265e7131b01db602082","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a3637e020a40d63d55b468cc02a2967afe532dc01402265e7131b01db602082","first_computed_at":"2026-05-18T00:29:28.470633Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:28.470633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y3Cssj5bmYGRNtILVEhvEpEmxSRwQS/GbYuP6AzwwYf69MVwbiQLtfE++2Lqs6QBaB+cGJgJt2Ss8LWU1daRDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:28.471199Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.09926","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6da7729e5e0db6c6f039d50612d628628413b25e7831ec9e37b7af1922475bb2","sha256:71267bf89dbb2e45da88a919f967069b6740965e46f223d9fea61c15eb9a58ce"],"state_sha256":"692d71ae702b954be57fc6814dfcf3f33d23a0d5dc88ac640833ef2e58ea93fb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YHuUT3Bc8ntz0GxrhOfS8SLLQFzYgdj7/STJT66UtrCEUhMIG83Zwaww0G1VHDkffvrwI2j/W7lMJdkTT6NBBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T09:29:38.842884Z","bundle_sha256":"264969b059c28c7ab4215370eabc3617412526ce0b56672dc9cd389a2809fb3c"}}