{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:EHYLHPBY4EHSNJ6QBAWE45MJ6R","short_pith_number":"pith:EHYLHPBY","schema_version":"1.0","canonical_sha256":"21f0b3bc38e10f26a7d0082c4e7589f459b4f7dff1ceb5b0327751cfc4b67307","source":{"kind":"arxiv","id":"2012.13754","version":4},"attestation_state":"computed","paper":{"title":"Einstein's Equivalence principle for superpositions of gravitational fields and quantum reference frames","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Flaminia Giacomini, \\v{C}aslav Brukner","submitted_at":"2020-12-26T14:56:25Z","abstract_excerpt":"The Einstein Equivalence Principle (EEP), stating that all laws of physics take their special-relativistic form in any local inertial (classical) reference frame, lies at the core of general relativity. Because of its fundamental status, this principle could be a very powerful guide in formulating physical laws at regimes where both gravitational and quantum effects are relevant. The formulation of the EEP only holds when both matter systems and gravity are classical, and we do not know whether we should abandon or modify it when we consider quantum systems in a-possibly nonclassical-gravitati"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2012.13754","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2020-12-26T14:56:25Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"225e2ba241c2410bbff3192d7b6f4df22f6d72fd9dc311de1d2600be18a8ccb1","abstract_canon_sha256":"02789f02a631afb3f9cb6adf7603dde1c9430bbf7ee8f62d29e6b078f119cfc5"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:23:43.190721Z","signature_b64":"/qmlx2/l+rcngE0Zynw78XfI2Q3e+z6XYnX6eaoyg7wkP6jogWmDrG+C5077yQNUeQUBMkt9PQkILpwWIAMoBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"21f0b3bc38e10f26a7d0082c4e7589f459b4f7dff1ceb5b0327751cfc4b67307","last_reissued_at":"2026-07-05T06:23:43.190278Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:23:43.190278Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Einstein's Equivalence principle for superpositions of gravitational fields and quantum reference frames","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Flaminia Giacomini, \\v{C}aslav Brukner","submitted_at":"2020-12-26T14:56:25Z","abstract_excerpt":"The Einstein Equivalence Principle (EEP), stating that all laws of physics take their special-relativistic form in any local inertial (classical) reference frame, lies at the core of general relativity. Because of its fundamental status, this principle could be a very powerful guide in formulating physical laws at regimes where both gravitational and quantum effects are relevant. The formulation of the EEP only holds when both matter systems and gravity are classical, and we do not know whether we should abandon or modify it when we consider quantum systems in a-possibly nonclassical-gravitati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.13754","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.13754/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2012.13754","created_at":"2026-07-05T06:23:43.190342+00:00"},{"alias_kind":"arxiv_version","alias_value":"2012.13754v4","created_at":"2026-07-05T06:23:43.190342+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.13754","created_at":"2026-07-05T06:23:43.190342+00:00"},{"alias_kind":"pith_short_12","alias_value":"EHYLHPBY4EHS","created_at":"2026-07-05T06:23:43.190342+00:00"},{"alias_kind":"pith_short_16","alias_value":"EHYLHPBY4EHSNJ6Q","created_at":"2026-07-05T06:23:43.190342+00:00"},{"alias_kind":"pith_short_8","alias_value":"EHYLHPBY","created_at":"2026-07-05T06:23:43.190342+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.09344","citing_title":"Quantum Reference Fields Transformations in Linearized Quantum Gravity","ref_index":84,"is_internal_anchor":false},{"citing_arxiv_id":"2506.00265","citing_title":"Recovering Einstein's equation from local correlations with quantum reference frames","ref_index":17,"is_internal_anchor":false},{"citing_arxiv_id":"2507.21601","citing_title":"Foundations of Relational Quantum Field Theory I: Scalars","ref_index":12,"is_internal_anchor":false},{"citing_arxiv_id":"2604.02873","citing_title":"Frame perspectives for process matrices: from coordinate parametrization to spacetime representation","ref_index":12,"is_internal_anchor":false},{"citing_arxiv_id":"2604.06149","citing_title":"Error Correction in Lattice Quantum Electrodynamics with Quantum Reference Frames","ref_index":57,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R","json":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R.json","graph_json":"https://pith.science/api/pith-number/EHYLHPBY4EHSNJ6QBAWE45MJ6R/graph.json","events_json":"https://pith.science/api/pith-number/EHYLHPBY4EHSNJ6QBAWE45MJ6R/events.json","paper":"https://pith.science/paper/EHYLHPBY"},"agent_actions":{"view_html":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R","download_json":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R.json","view_paper":"https://pith.science/paper/EHYLHPBY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2012.13754&json=true","fetch_graph":"https://pith.science/api/pith-number/EHYLHPBY4EHSNJ6QBAWE45MJ6R/graph.json","fetch_events":"https://pith.science/api/pith-number/EHYLHPBY4EHSNJ6QBAWE45MJ6R/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R/action/storage_attestation","attest_author":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R/action/author_attestation","sign_citation":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R/action/citation_signature","submit_replication":"https://pith.science/pith/EHYLHPBY4EHSNJ6QBAWE45MJ6R/action/replication_record"}},"created_at":"2026-07-05T06:23:43.190342+00:00","updated_at":"2026-07-05T06:23:43.190342+00:00"}