{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:SNUUD4K35JRWXN5QSFROTFRAX6","short_pith_number":"pith:SNUUD4K3","canonical_record":{"source":{"id":"1008.2660","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-16T14:03:11Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"a69475586684863c9ff1312202a92507a1cfcb551a26d7652659c814eb49fc72","abstract_canon_sha256":"dcc14129e828f9cc1af3fe90d9a4108ed55c944a275ecd0c4b4ae132f76a8695"},"schema_version":"1.0"},"canonical_sha256":"936941f15bea636bb7b09162e99620bf8303e59cfb0c23fca2d96498d56540b4","source":{"kind":"arxiv","id":"1008.2660","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2660","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2660v4","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2660","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"pith_short_12","alias_value":"SNUUD4K35JRW","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SNUUD4K35JRWXN5Q","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SNUUD4K3","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:SNUUD4K35JRWXN5QSFROTFRAX6","target":"record","payload":{"canonical_record":{"source":{"id":"1008.2660","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-16T14:03:11Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"a69475586684863c9ff1312202a92507a1cfcb551a26d7652659c814eb49fc72","abstract_canon_sha256":"dcc14129e828f9cc1af3fe90d9a4108ed55c944a275ecd0c4b4ae132f76a8695"},"schema_version":"1.0"},"canonical_sha256":"936941f15bea636bb7b09162e99620bf8303e59cfb0c23fca2d96498d56540b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:47:31.847729Z","signature_b64":"mUF4v9Cbnh7q8git3Xl8sefeahTw7vXU5UlaCWNGYhXkh/+eIC22bkVMqt/yBgOAOFJ1HonOVxe3gk2Qt7LwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"936941f15bea636bb7b09162e99620bf8303e59cfb0c23fca2d96498d56540b4","last_reissued_at":"2026-05-18T00:47:31.847165Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:47:31.847165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.2660","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":"2026-05-18T00:47:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dBVK6nS95/HkMnznGLNvtVnjcM+Zjd8XVmXiyDmB4EhUAbZf64khHvjoMigvm1/QZ4Qd8goRZM3OWH5pwr24Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:43:03.291554Z"},"content_sha256":"b40ef8f8c00b478aadd78540c83251bedad10e9a79257c001be5f6237517fe94","schema_version":"1.0","event_id":"sha256:b40ef8f8c00b478aadd78540c83251bedad10e9a79257c001be5f6237517fe94"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:SNUUD4K35JRWXN5QSFROTFRAX6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Acceleration of particles in Einstein-Maxwell-dilaton black holes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"hep-th","authors_text":"Ji-rong Ren, Lin-Yu Jia, Pu-Jian Mao, Ran Li","submitted_at":"2010-08-16T14:03:11Z","abstract_excerpt":"It has recently been pointed out that, under certain conditions, the energy of particles accelerated by black holes in the center-of-mass frame can become arbitrarily high. In this paper, we study the collision of two particles in the case of four-dimensional charged nonrotating, extremal charged rotating and near-extremal charged rotating Kaluza-Klein black holes as well as the naked singularity case in Einstein-Maxwell-dilaton theory. We find that the center-of-mass energy for a pair of colliding particles is unlimited at the horizon of charged nonrotating Kaluza-Klein black holes, extremal "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2660","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":""},"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":"2026-05-18T00:47:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gZdYAWYdAjD4W5e855IbCNcQNbTiJihR4bRKNht5MwnLVA+50aKh6qZUrVr9iZ/l3U26tk7gB5bcDM0iSSHgDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:43:03.292214Z"},"content_sha256":"f3c27bf2774c4cc6a9ad57b2909ebc3c3da993d556cb321a9ecfbad168a7c31d","schema_version":"1.0","event_id":"sha256:f3c27bf2774c4cc6a9ad57b2909ebc3c3da993d556cb321a9ecfbad168a7c31d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SNUUD4K35JRWXN5QSFROTFRAX6/bundle.json","state_url":"https://pith.science/pith/SNUUD4K35JRWXN5QSFROTFRAX6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SNUUD4K35JRWXN5QSFROTFRAX6/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":"2026-05-26T01:43:03Z","links":{"resolver":"https://pith.science/pith/SNUUD4K35JRWXN5QSFROTFRAX6","bundle":"https://pith.science/pith/SNUUD4K35JRWXN5QSFROTFRAX6/bundle.json","state":"https://pith.science/pith/SNUUD4K35JRWXN5QSFROTFRAX6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SNUUD4K35JRWXN5QSFROTFRAX6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:SNUUD4K35JRWXN5QSFROTFRAX6","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":"dcc14129e828f9cc1af3fe90d9a4108ed55c944a275ecd0c4b4ae132f76a8695","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-16T14:03:11Z","title_canon_sha256":"a69475586684863c9ff1312202a92507a1cfcb551a26d7652659c814eb49fc72"},"schema_version":"1.0","source":{"id":"1008.2660","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2660","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2660v4","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2660","created_at":"2026-05-18T00:47:31Z"},{"alias_kind":"pith_short_12","alias_value":"SNUUD4K35JRW","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"SNUUD4K35JRWXN5Q","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"SNUUD4K3","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:f3c27bf2774c4cc6a9ad57b2909ebc3c3da993d556cb321a9ecfbad168a7c31d","target":"graph","created_at":"2026-05-18T00:47:31Z","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":"It has recently been pointed out that, under certain conditions, the energy of particles accelerated by black holes in the center-of-mass frame can become arbitrarily high. In this paper, we study the collision of two particles in the case of four-dimensional charged nonrotating, extremal charged rotating and near-extremal charged rotating Kaluza-Klein black holes as well as the naked singularity case in Einstein-Maxwell-dilaton theory. We find that the center-of-mass energy for a pair of colliding particles is unlimited at the horizon of charged nonrotating Kaluza-Klein black holes, extremal ","authors_text":"Ji-rong Ren, Lin-Yu Jia, Pu-Jian Mao, Ran Li","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-16T14:03:11Z","title":"Acceleration of particles in Einstein-Maxwell-dilaton black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2660","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:b40ef8f8c00b478aadd78540c83251bedad10e9a79257c001be5f6237517fe94","target":"record","created_at":"2026-05-18T00:47:31Z","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":"dcc14129e828f9cc1af3fe90d9a4108ed55c944a275ecd0c4b4ae132f76a8695","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2010-08-16T14:03:11Z","title_canon_sha256":"a69475586684863c9ff1312202a92507a1cfcb551a26d7652659c814eb49fc72"},"schema_version":"1.0","source":{"id":"1008.2660","kind":"arxiv","version":4}},"canonical_sha256":"936941f15bea636bb7b09162e99620bf8303e59cfb0c23fca2d96498d56540b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"936941f15bea636bb7b09162e99620bf8303e59cfb0c23fca2d96498d56540b4","first_computed_at":"2026-05-18T00:47:31.847165Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:31.847165Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mUF4v9Cbnh7q8git3Xl8sefeahTw7vXU5UlaCWNGYhXkh/+eIC22bkVMqt/yBgOAOFJ1HonOVxe3gk2Qt7LwBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:31.847729Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.2660","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b40ef8f8c00b478aadd78540c83251bedad10e9a79257c001be5f6237517fe94","sha256:f3c27bf2774c4cc6a9ad57b2909ebc3c3da993d556cb321a9ecfbad168a7c31d"],"state_sha256":"5831a6e9e2cef9dfabb9b0c54bcafc44a0e344583b71d700e23ffc5d1e8a973a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qS297Mjv0cvpzKPwMRvEBZRJKJShRi534EpN4fAYTtNQV4E66vkAhoX643JEmXn5oLmhszSSVzgAvR7KkWi0Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:43:03.295721Z","bundle_sha256":"434419db6f58bca277705f323395f831e66f96a1b840720b3f27595a8c04e61a"}}