{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:HZQ7K7GAZCQKOBGIFEM2RVIB3J","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":"6c02471b11ad983ee85b19d692c5240c9c7bcb64c8ad2086708c81a1c6433633","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-15T08:04:11Z","title_canon_sha256":"67a9794c11422938396e6c065f416e604fe18d0df6e56b9b9739b36a2aef9180"},"schema_version":"1.0","source":{"id":"1612.04959","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.04959","created_at":"2026-05-18T00:44:45Z"},{"alias_kind":"arxiv_version","alias_value":"1612.04959v2","created_at":"2026-05-18T00:44:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.04959","created_at":"2026-05-18T00:44:45Z"},{"alias_kind":"pith_short_12","alias_value":"HZQ7K7GAZCQK","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"HZQ7K7GAZCQKOBGI","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"HZQ7K7GA","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:7a9e792b9fe11a610bfc9f9f1adce124608a7a7ba3120ef1bf14923a36cdaf9c","target":"graph","created_at":"2026-05-18T00:44:45Z","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 2009, Banados, Silk and West (BSW) pointed out the possibility of having an unbounded limit of centre-of-mass collision energy for test particles in the field of an extremal Kerr black hole, if one of them has fine-tuned parameters and the collision point is approaching the horizon. The possibility of this \"BSW effect\" attracted much attention: it was generalised to arbitrary (\"dirty\") rotating black holes and an analogy was found for collisions of charged particles in the field of non-rotating charged black holes. Our work considers the unification of these two mechanisms, which have so fa","authors_text":"Filip Hejda, Ji\\v{r}\\'i Bi\\v{c}\\'ak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-15T08:04:11Z","title":"Kinematic restrictions on particle collisions near extremal black holes: A unified picture"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.04959","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:c6deb35e5d8b2b89ec9139ae3a3fca77de781615ad20fe8a1f4cf632b3649676","target":"record","created_at":"2026-05-18T00:44:45Z","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":"6c02471b11ad983ee85b19d692c5240c9c7bcb64c8ad2086708c81a1c6433633","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-12-15T08:04:11Z","title_canon_sha256":"67a9794c11422938396e6c065f416e604fe18d0df6e56b9b9739b36a2aef9180"},"schema_version":"1.0","source":{"id":"1612.04959","kind":"arxiv","version":2}},"canonical_sha256":"3e61f57cc0c8a0a704c82919a8d501da6f419891431e43d1d1b2d08f3d4cac87","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3e61f57cc0c8a0a704c82919a8d501da6f419891431e43d1d1b2d08f3d4cac87","first_computed_at":"2026-05-18T00:44:45.771195Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:44:45.771195Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xXxsiYNisSd6jcDjGu/S6qV9pX50bVa6PD3oHGjJb9MjZTPg6njcWp1o4lnVuGcF2z34TRuqn4DKeUW9Ao6/CA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:44:45.771572Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.04959","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6deb35e5d8b2b89ec9139ae3a3fca77de781615ad20fe8a1f4cf632b3649676","sha256:7a9e792b9fe11a610bfc9f9f1adce124608a7a7ba3120ef1bf14923a36cdaf9c"],"state_sha256":"76af38aad05b05528035c17eae8afd580341f3b5cc747433548cd75dd6b34c50"}