{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:K6TMUT3ZA3KWGPZM2VW6ELXTCG","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":"6ea9b1547ad5fa8cb7d250f098ccaf5ff45c4899f5fe4acb7e26c93bd08bcefb","cross_cats_sorted":["hep-ex","hep-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2003-10-03T13:23:26Z","title_canon_sha256":"d5045ad5269ad7e762d31b2b27c608694e4b651cfdfa74d669f40646f7673a17"},"schema_version":"1.0","source":{"id":"gr-qc/0310020","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0310020","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0310020v1","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0310020","created_at":"2026-05-18T04:33:05Z"},{"alias_kind":"pith_short_12","alias_value":"K6TMUT3ZA3KW","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"K6TMUT3ZA3KWGPZM","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"K6TMUT3Z","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:d58a61cb1e647e1548f0689f0940bd414f73e5f2bea24e1ace0554ecb298ad30","target":"graph","created_at":"2026-05-18T04:33:05Z","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":"We consider a few thought experiments of radial motion of massive particles in the gravitational fields outside and inside various celestial bodies: Earth, Sun, black hole. All other interactions except gravity are disregarded. For the outside motion there exists a critical value of coordinate velocity ${\\rm v}_c = c/\\sqrt 3$: particles with ${\\rm v} < {\\rm v}_c$ are accelerated by the field, like Newtonian apples, particles with ${\\rm v} > {\\rm v}_c$ are decelerated like photons. Particles moving inside a body with constant density have no critical velocity; they are always accelerated. We co","authors_text":"L.B. Okun, M.I. Vysotsky (ITEP, Moscow, Russia), S.I. Blinnikov","cross_cats":["hep-ex","hep-ph"],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2003-10-03T13:23:26Z","title":"Critical velocities $c/\\sqrt 3$ and $c/\\sqrt 2$ in general theory of relativity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0310020","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":"sha256:63d7f7933296df46041cc77de768c77645bf2ce7d262b7436308a56855b611c9","target":"record","created_at":"2026-05-18T04:33:05Z","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":"6ea9b1547ad5fa8cb7d250f098ccaf5ff45c4899f5fe4acb7e26c93bd08bcefb","cross_cats_sorted":["hep-ex","hep-ph"],"license":"","primary_cat":"gr-qc","submitted_at":"2003-10-03T13:23:26Z","title_canon_sha256":"d5045ad5269ad7e762d31b2b27c608694e4b651cfdfa74d669f40646f7673a17"},"schema_version":"1.0","source":{"id":"gr-qc/0310020","kind":"arxiv","version":1}},"canonical_sha256":"57a6ca4f7906d5633f2cd56de22ef3118fb84bd7727ca6ae9b7abbf5a2fea6c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57a6ca4f7906d5633f2cd56de22ef3118fb84bd7727ca6ae9b7abbf5a2fea6c3","first_computed_at":"2026-05-18T04:33:05.375200Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:33:05.375200Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iZAKanOWxfG/o4IdLlyxkJGfZo/uUjfJVIxZVJQ6DBuqcWlzyBbyA8AVcVMXPzKNJ9uhl/hDBDpHVge8XYn5CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:33:05.376091Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0310020","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:63d7f7933296df46041cc77de768c77645bf2ce7d262b7436308a56855b611c9","sha256:d58a61cb1e647e1548f0689f0940bd414f73e5f2bea24e1ace0554ecb298ad30"],"state_sha256":"7eb921e15bc7cf110de1b286fc78fc716ae75601176bd113da766a37192fa7c8"}