{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:P7FXDS4OG2VQ46EPPKFEWSXO4B","short_pith_number":"pith:P7FXDS4O","canonical_record":{"source":{"id":"2403.09807","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-14T18:56:18Z","cross_cats_sorted":["math.OC"],"title_canon_sha256":"95e363a62181de2786964dde4a3da097fffcd860d3cae35ba5b15d895162ba31","abstract_canon_sha256":"f5bb208ca88d3209070dbc99139c2915166add67efdccf31a61f21a245e1a187"},"schema_version":"1.0"},"canonical_sha256":"7fcb71cb8e36ab0e788f7a8a4b4aeee0431d05fc9abd1a88f88e227fe7ff10b4","source":{"kind":"arxiv","id":"2403.09807","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.09807","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"arxiv_version","alias_value":"2403.09807v2","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09807","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_12","alias_value":"P7FXDS4OG2VQ","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_16","alias_value":"P7FXDS4OG2VQ46EP","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_8","alias_value":"P7FXDS4O","created_at":"2026-07-05T10:12:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:P7FXDS4OG2VQ46EPPKFEWSXO4B","target":"record","payload":{"canonical_record":{"source":{"id":"2403.09807","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-14T18:56:18Z","cross_cats_sorted":["math.OC"],"title_canon_sha256":"95e363a62181de2786964dde4a3da097fffcd860d3cae35ba5b15d895162ba31","abstract_canon_sha256":"f5bb208ca88d3209070dbc99139c2915166add67efdccf31a61f21a245e1a187"},"schema_version":"1.0"},"canonical_sha256":"7fcb71cb8e36ab0e788f7a8a4b4aeee0431d05fc9abd1a88f88e227fe7ff10b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:12:15.127376Z","signature_b64":"KsVBjoRLYXHvFsSFI9VNbf2bHO8HddPN2oKp48HSq/hxWLVPIzErsGzuEixq7phYfaSG4jG62RdkwQ/UurfGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fcb71cb8e36ab0e788f7a8a4b4aeee0431d05fc9abd1a88f88e227fe7ff10b4","last_reissued_at":"2026-07-05T10:12:15.126909Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:12:15.126909Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.09807","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:12:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"e3mij7EK5I0mYoYZVfvjoldZljUiqIW7cCuw8FsxT1fC+DG+Adl+90w3n0BSDglf9Owc2An6p7MEoYf07uebAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T09:34:44.264653Z"},"content_sha256":"d99c4bbc04f43aca7489027466f599f18fd129832367d0a61219e6f614317248","schema_version":"1.0","event_id":"sha256:d99c4bbc04f43aca7489027466f599f18fd129832367d0a61219e6f614317248"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:P7FXDS4OG2VQ46EPPKFEWSXO4B","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revealing hidden physical nonclassicality with nonnegative polynomials","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.OC"],"primary_cat":"quant-ph","authors_text":"Benjamin Yadin, Birte Ostermann, Hai-Chau Nguyen, Otfried G\\\"uhne, Ties-A. Ohst, Timo de Wolff","submitted_at":"2024-03-14T18:56:18Z","abstract_excerpt":"Understanding quantum phenomena which go beyond classical concepts is a focus of modern quantum physics. Here, we show how the theory of nonnegative polynomials emerging around Hilbert's 17th problem, can be used to optimally exploit data capturing the nonclassical nature of light. Specifically, we show that nonnegative polynomials can reveal nonclassicality in data even when it is hidden from standard detection methods up to now. Moreover, the abstract language of nonnegative polynomials also leads to a unified mathematical approach to nonclassicality for light and spin systems, allowing us t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09807","kind":"arxiv","version":2},"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/2403.09807/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:12:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4YP2yaZEY9N+V/L0WfDUVrVcRjpygi9BWhweUCvoXE4A8rIeYvC/xrqjJl8yuj7DyxBq0gUdu5v9cLr80ZVqBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T09:34:44.265010Z"},"content_sha256":"efa9c2021ee12103466add1da2fc2f902ed32bdaca98db9bf2305260c6da7003","schema_version":"1.0","event_id":"sha256:efa9c2021ee12103466add1da2fc2f902ed32bdaca98db9bf2305260c6da7003"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/bundle.json","state_url":"https://pith.science/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/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":"2026-07-20T09:34:44Z","links":{"resolver":"https://pith.science/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B","bundle":"https://pith.science/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/bundle.json","state":"https://pith.science/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P7FXDS4OG2VQ46EPPKFEWSXO4B/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:P7FXDS4OG2VQ46EPPKFEWSXO4B","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":"f5bb208ca88d3209070dbc99139c2915166add67efdccf31a61f21a245e1a187","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-14T18:56:18Z","title_canon_sha256":"95e363a62181de2786964dde4a3da097fffcd860d3cae35ba5b15d895162ba31"},"schema_version":"1.0","source":{"id":"2403.09807","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.09807","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"arxiv_version","alias_value":"2403.09807v2","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.09807","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_12","alias_value":"P7FXDS4OG2VQ","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_16","alias_value":"P7FXDS4OG2VQ46EP","created_at":"2026-07-05T10:12:15Z"},{"alias_kind":"pith_short_8","alias_value":"P7FXDS4O","created_at":"2026-07-05T10:12:15Z"}],"graph_snapshots":[{"event_id":"sha256:efa9c2021ee12103466add1da2fc2f902ed32bdaca98db9bf2305260c6da7003","target":"graph","created_at":"2026-07-05T10:12:15Z","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/2403.09807/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding quantum phenomena which go beyond classical concepts is a focus of modern quantum physics. Here, we show how the theory of nonnegative polynomials emerging around Hilbert's 17th problem, can be used to optimally exploit data capturing the nonclassical nature of light. Specifically, we show that nonnegative polynomials can reveal nonclassicality in data even when it is hidden from standard detection methods up to now. Moreover, the abstract language of nonnegative polynomials also leads to a unified mathematical approach to nonclassicality for light and spin systems, allowing us t","authors_text":"Benjamin Yadin, Birte Ostermann, Hai-Chau Nguyen, Otfried G\\\"uhne, Ties-A. Ohst, Timo de Wolff","cross_cats":["math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-14T18:56:18Z","title":"Revealing hidden physical nonclassicality with nonnegative polynomials"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.09807","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:d99c4bbc04f43aca7489027466f599f18fd129832367d0a61219e6f614317248","target":"record","created_at":"2026-07-05T10:12:15Z","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":"f5bb208ca88d3209070dbc99139c2915166add67efdccf31a61f21a245e1a187","cross_cats_sorted":["math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-03-14T18:56:18Z","title_canon_sha256":"95e363a62181de2786964dde4a3da097fffcd860d3cae35ba5b15d895162ba31"},"schema_version":"1.0","source":{"id":"2403.09807","kind":"arxiv","version":2}},"canonical_sha256":"7fcb71cb8e36ab0e788f7a8a4b4aeee0431d05fc9abd1a88f88e227fe7ff10b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fcb71cb8e36ab0e788f7a8a4b4aeee0431d05fc9abd1a88f88e227fe7ff10b4","first_computed_at":"2026-07-05T10:12:15.126909Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:12:15.126909Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KsVBjoRLYXHvFsSFI9VNbf2bHO8HddPN2oKp48HSq/hxWLVPIzErsGzuEixq7phYfaSG4jG62RdkwQ/UurfGDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:12:15.127376Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.09807","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d99c4bbc04f43aca7489027466f599f18fd129832367d0a61219e6f614317248","sha256:efa9c2021ee12103466add1da2fc2f902ed32bdaca98db9bf2305260c6da7003"],"state_sha256":"6541ca2178406cbd2df0b5f793fc47be0c5c4cb3be525fb5e6fc1c63a489dca2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b7N+BqYbnGiaYyl1gOOjBdDV6MTTlCHeecPD8mnMtFHm1vN3RqY/XCqf5Qmj4l/G+u7P+URSyK/c9X5A0iqhDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-20T09:34:44.267373Z","bundle_sha256":"be442617f35e10254c84ab2a33e89f65cc1cbdd5c31a189293fd71ead1bb7ff8"}}