{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:AZXHXADSJ6VC7KL3EI5SUQBLU3","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":"8ad388f48747749b545ec6b8e3c58071993ffdff1b257e5887f0f6b6a14f38fa","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-06T01:38:27Z","title_canon_sha256":"9f0f3d17ef2d10292ac41fa3f52f6c04d698b2143852141c73b99696effbd582"},"schema_version":"1.0","source":{"id":"1607.01454","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1607.01454","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1607.01454v2","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.01454","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"AZXHXADSJ6VC","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"AZXHXADSJ6VC7KL3","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"AZXHXADS","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:9016dcaa7ab32370e5fcc545aa25ddc82aff11f265ceca8206a065244e906b60","target":"graph","created_at":"2026-05-18T01:04:18Z","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":"While the existence of quantum superpositions of massive particles over microscopic separations has been established since the birth of quantum mechanics, the maintenance of superposition states over macroscopic separations is a subject of modern experimental tests. In Ref. [1], T. Kovachy et al. report on applying optical pulses to place a freely falling Bose-Einstein condensate into a superposition of two trajectories that separate by an impressive distance of 54 cm before being redirected toward one another. When the trajectories overlap, a final optical pulse produces interference with hig","authors_text":"Dan M. Stamper-Kurn, G. Edward Marti, Holger M\\\"uller","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-06T01:38:27Z","title":"Verifying quantum superpositions at metre scales"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.01454","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":"sha256:9ed7443264e5eee6ed6386d0e7227af33398e0617a0b182e4668ed0b5a8a1267","target":"record","created_at":"2026-05-18T01:04:18Z","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":"8ad388f48747749b545ec6b8e3c58071993ffdff1b257e5887f0f6b6a14f38fa","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-07-06T01:38:27Z","title_canon_sha256":"9f0f3d17ef2d10292ac41fa3f52f6c04d698b2143852141c73b99696effbd582"},"schema_version":"1.0","source":{"id":"1607.01454","kind":"arxiv","version":2}},"canonical_sha256":"066e7b80724faa2fa97b223b2a402ba6e429c6aac23a6eed7d8356751d27b4de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"066e7b80724faa2fa97b223b2a402ba6e429c6aac23a6eed7d8356751d27b4de","first_computed_at":"2026-05-18T01:04:18.300854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:18.300854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YjvYdNVke4f9Dg5MdTL7q4tHTfnR6zkpzdtfiTSTC1tq2tCyNDVRJknLOmbJrCpdDl48eCMMMlIShoMEEQC3DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:18.301227Z","signed_message":"canonical_sha256_bytes"},"source_id":"1607.01454","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ed7443264e5eee6ed6386d0e7227af33398e0617a0b182e4668ed0b5a8a1267","sha256:9016dcaa7ab32370e5fcc545aa25ddc82aff11f265ceca8206a065244e906b60"],"state_sha256":"5036b2e22a7276a43cf2c928367fab2d80bba065902b648b6799c22b716857a3"}