{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:DJFSQZXB5UPR345VRZUDA5DZ5J","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":"34e73e66a006946a9b7745691598f391527bf48ddb1b6b80dc9593e90b91139f","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-07T08:24:29Z","title_canon_sha256":"f8b28e1f0416a238bfde234f6805684fd72a5e4d589f0aa7f4b7164c7c1eebc6"},"schema_version":"1.0","source":{"id":"2001.02511","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.02511","created_at":"2026-05-26T01:03:06Z"},{"alias_kind":"arxiv_version","alias_value":"2001.02511v3","created_at":"2026-05-26T01:03:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.02511","created_at":"2026-05-26T01:03:06Z"},{"alias_kind":"pith_short_12","alias_value":"DJFSQZXB5UPR","created_at":"2026-05-26T01:03:06Z"},{"alias_kind":"pith_short_16","alias_value":"DJFSQZXB5UPR345V","created_at":"2026-05-26T01:03:06Z"},{"alias_kind":"pith_short_8","alias_value":"DJFSQZXB","created_at":"2026-05-26T01:03:06Z"}],"graph_snapshots":[{"event_id":"sha256:9c7af395ca13056e2514ea34d4ef59e65a1a4ee9e3134ac4d08fc14115ad901a","target":"graph","created_at":"2026-05-26T01:03:06Z","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/2001.02511/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The theory of general relativity predicts the existence of closed time-like curves (CTCs), which theoretically would allow an observer to travel back in time and interact with their past self. This raises the question of whether this could create a grandfather paradox, in which the observer interacts in such a way to prevent their own time travel. Previous research has proposed a framework for deterministic, reversible, dynamics compatible with non-trivial time travel, where observers in distinct regions of spacetime can perform arbitrary local operations with no contradiction arising. However","authors_text":"Fabio Costa, Germain Tobar","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-07T08:24:29Z","title":"Reversible dynamics with closed time-like curves and freedom of choice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.02511","kind":"arxiv","version":3},"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":"sha256:16a0d38fe29ce03ef31cef7c7b6430c4343f83372b9a7382f577f7c6df8aa50b","target":"record","created_at":"2026-05-26T01:03:06Z","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":"34e73e66a006946a9b7745691598f391527bf48ddb1b6b80dc9593e90b91139f","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-01-07T08:24:29Z","title_canon_sha256":"f8b28e1f0416a238bfde234f6805684fd72a5e4d589f0aa7f4b7164c7c1eebc6"},"schema_version":"1.0","source":{"id":"2001.02511","kind":"arxiv","version":3}},"canonical_sha256":"1a4b2866e1ed1f1df3b58e68307479ea6b3d2abaa37ddcbd1893c474d26ec6aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1a4b2866e1ed1f1df3b58e68307479ea6b3d2abaa37ddcbd1893c474d26ec6aa","first_computed_at":"2026-05-26T01:03:06.817226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-26T01:03:06.817226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xSuLMlx+EPhz2e85Yj/AwQwo+AfyH6iDFClyN2Cr1FjpXbsMDCQRGbNPBn3FnsjXXjPDgRaTbjrQ6EqpSZUbAQ==","signature_status":"signed_v1","signed_at":"2026-05-26T01:03:06.817871Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.02511","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16a0d38fe29ce03ef31cef7c7b6430c4343f83372b9a7382f577f7c6df8aa50b","sha256:9c7af395ca13056e2514ea34d4ef59e65a1a4ee9e3134ac4d08fc14115ad901a"],"state_sha256":"c7caeb3163cf6f20939987f32817b05467a419541e8adce3a6e7f34d747e2eb6"}