{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AKQHKD4RDR7FP6MHKD3WDVLECS","short_pith_number":"pith:AKQHKD4R","canonical_record":{"source":{"id":"1807.01314","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2018-06-25T09:00:21Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"e1ec70796e42b8bcf6925f8bb3a7f065b19ae214311a20e9023a9a357ca7c3c9","abstract_canon_sha256":"9c1ad06587ed216a7c589bcdea5cf1a26de9dabd2f722aa1d569c2ce47842374"},"schema_version":"1.0"},"canonical_sha256":"02a0750f911c7e57f98750f761d56414a5bc0365449606a14614901d37d82727","source":{"kind":"arxiv","id":"1807.01314","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01314","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01314v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01314","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"AKQHKD4RDR7F","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AKQHKD4RDR7FP6MH","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AKQHKD4R","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AKQHKD4RDR7FP6MHKD3WDVLECS","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01314","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2018-06-25T09:00:21Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"e1ec70796e42b8bcf6925f8bb3a7f065b19ae214311a20e9023a9a357ca7c3c9","abstract_canon_sha256":"9c1ad06587ed216a7c589bcdea5cf1a26de9dabd2f722aa1d569c2ce47842374"},"schema_version":"1.0"},"canonical_sha256":"02a0750f911c7e57f98750f761d56414a5bc0365449606a14614901d37d82727","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:44.653300Z","signature_b64":"eDRtyidowGUIHjFBbjnY9Gq0iMBqJAc3CwFcn8snnInhBLQUrV+p2JUFsJ3kusnYhFSKNC7v0ACWjthVEfdpDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02a0750f911c7e57f98750f761d56414a5bc0365449606a14614901d37d82727","last_reissued_at":"2026-05-18T00:11:44.652717Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:44.652717Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01314","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IL2OebPddBCY960mbpCNa3bsef2ScmkwepRijRdj8jxo+qi10VSbqiz9j/zZkX1QysbbDd3tUG7jAUWjhougAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:58:09.169057Z"},"content_sha256":"7278bf923699fc4ef59736adad2e883758360482e22a34753445ad5c77bc1115","schema_version":"1.0","event_id":"sha256:7278bf923699fc4ef59736adad2e883758360482e22a34753445ad5c77bc1115"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AKQHKD4RDR7FP6MHKD3WDVLECS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dualities and Twins: Reflections on Hapgood","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.pop-ph","authors_text":"Adrian Kent (Centre for Quantum Information, DAMTP, Foundations, Perimeter Institute for Theoretical of Physics), U.K., University of Cambridge","submitted_at":"2018-06-25T09:00:21Z","abstract_excerpt":"These programme notes were written for a production of \"Hapgood\" at the Hampstead Theatre, London in December 2015. I thank Sir Tom Stoppard for helpful suggestions."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01314","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EVVeZa/YVLL6fJRKVZgePuLUicYbvK/N+u//tCVLmnHas0xtzKZJT3ENw/MdgIE9sc1kDiCkDjYkNAExWQZOCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-19T22:58:09.169427Z"},"content_sha256":"829da56e37727fd7e0e40924cd5789ba63c56007cf13dad6d1d1260502fdc454","schema_version":"1.0","event_id":"sha256:829da56e37727fd7e0e40924cd5789ba63c56007cf13dad6d1d1260502fdc454"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/bundle.json","state_url":"https://pith.science/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/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":"2026-06-19T22:58:09Z","links":{"resolver":"https://pith.science/pith/AKQHKD4RDR7FP6MHKD3WDVLECS","bundle":"https://pith.science/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/bundle.json","state":"https://pith.science/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AKQHKD4RDR7FP6MHKD3WDVLECS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AKQHKD4RDR7FP6MHKD3WDVLECS","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":"9c1ad06587ed216a7c589bcdea5cf1a26de9dabd2f722aa1d569c2ce47842374","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2018-06-25T09:00:21Z","title_canon_sha256":"e1ec70796e42b8bcf6925f8bb3a7f065b19ae214311a20e9023a9a357ca7c3c9"},"schema_version":"1.0","source":{"id":"1807.01314","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01314","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01314v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01314","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"AKQHKD4RDR7F","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AKQHKD4RDR7FP6MH","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AKQHKD4R","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:829da56e37727fd7e0e40924cd5789ba63c56007cf13dad6d1d1260502fdc454","target":"graph","created_at":"2026-05-18T00:11:44Z","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":"These programme notes were written for a production of \"Hapgood\" at the Hampstead Theatre, London in December 2015. I thank Sir Tom Stoppard for helpful suggestions.","authors_text":"Adrian Kent (Centre for Quantum Information, DAMTP, Foundations, Perimeter Institute for Theoretical of Physics), U.K., University of Cambridge","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2018-06-25T09:00:21Z","title":"Dualities and Twins: Reflections on Hapgood"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01314","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":"sha256:7278bf923699fc4ef59736adad2e883758360482e22a34753445ad5c77bc1115","target":"record","created_at":"2026-05-18T00:11:44Z","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":"9c1ad06587ed216a7c589bcdea5cf1a26de9dabd2f722aa1d569c2ce47842374","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.pop-ph","submitted_at":"2018-06-25T09:00:21Z","title_canon_sha256":"e1ec70796e42b8bcf6925f8bb3a7f065b19ae214311a20e9023a9a357ca7c3c9"},"schema_version":"1.0","source":{"id":"1807.01314","kind":"arxiv","version":1}},"canonical_sha256":"02a0750f911c7e57f98750f761d56414a5bc0365449606a14614901d37d82727","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02a0750f911c7e57f98750f761d56414a5bc0365449606a14614901d37d82727","first_computed_at":"2026-05-18T00:11:44.652717Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:44.652717Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eDRtyidowGUIHjFBbjnY9Gq0iMBqJAc3CwFcn8snnInhBLQUrV+p2JUFsJ3kusnYhFSKNC7v0ACWjthVEfdpDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:44.653300Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01314","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7278bf923699fc4ef59736adad2e883758360482e22a34753445ad5c77bc1115","sha256:829da56e37727fd7e0e40924cd5789ba63c56007cf13dad6d1d1260502fdc454"],"state_sha256":"5f1e9352509f70cab974518ac15b9d5772b840dda539857adc112e55d79a12d2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5b2pSQo+bEsyzeyK+KDjJ51Xb9rPjkEtvSQlz8Cbd+hsNP+nIQ8roZszw5a98kFH4AcQRTh5MOHi/HsfEq8CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-19T22:58:09.171597Z","bundle_sha256":"b86f22d279db08ef01fe93b022a998d7fa3f9c4611043d6c3416bc8d2c3ab69a"}}