{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:Z7MSFA3ADVXUZ76ZLOP5F2HI2O","short_pith_number":"pith:Z7MSFA3A","canonical_record":{"source":{"id":"2508.14979","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-20T18:03:33Z","cross_cats_sorted":[],"title_canon_sha256":"4a365f367fa02d525651138021ce0a9b7037000005de5b5bf65766ff8a17f199","abstract_canon_sha256":"3cc6fcf1d5d4afe55e0b2e88a752086aec03945f675852c2072f2bf87bcd1a2a"},"schema_version":"1.0"},"canonical_sha256":"cfd92283601d6f4cffd95b9fd2e8e8d3ad6a545d4836dc7175718a6025a5fd2d","source":{"kind":"arxiv","id":"2508.14979","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.14979","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"arxiv_version","alias_value":"2508.14979v1","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.14979","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_12","alias_value":"Z7MSFA3ADVXU","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_16","alias_value":"Z7MSFA3ADVXUZ76Z","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_8","alias_value":"Z7MSFA3A","created_at":"2026-07-05T11:57:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:Z7MSFA3ADVXUZ76ZLOP5F2HI2O","target":"record","payload":{"canonical_record":{"source":{"id":"2508.14979","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-20T18:03:33Z","cross_cats_sorted":[],"title_canon_sha256":"4a365f367fa02d525651138021ce0a9b7037000005de5b5bf65766ff8a17f199","abstract_canon_sha256":"3cc6fcf1d5d4afe55e0b2e88a752086aec03945f675852c2072f2bf87bcd1a2a"},"schema_version":"1.0"},"canonical_sha256":"cfd92283601d6f4cffd95b9fd2e8e8d3ad6a545d4836dc7175718a6025a5fd2d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:57:04.394817Z","signature_b64":"wBQKsVFDW/rpgJypn1KCkQw9xNp1N/DymK6+OzKIEpcI3MzP6Xg5zEprv5/gLzI9IByz3V6nsT4II5aZCZQrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfd92283601d6f4cffd95b9fd2e8e8d3ad6a545d4836dc7175718a6025a5fd2d","last_reissued_at":"2026-07-05T11:57:04.394393Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:57:04.394393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2508.14979","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":"2026-07-05T11:57:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9X/wBX9lr3dp+STQq7z3QCZv+dk6pkhrEOocCPwmMPNnuWDTNImdCM9vECXicwPuJvVZWUUUXK5kh5O6/TQ+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:32:58.098426Z"},"content_sha256":"40aae0cd42e38cdc6c4a1f10c6af15abd4adb41a3e887be067bff96f99da0aef","schema_version":"1.0","event_id":"sha256:40aae0cd42e38cdc6c4a1f10c6af15abd4adb41a3e887be067bff96f99da0aef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:Z7MSFA3ADVXUZ76ZLOP5F2HI2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy-independent tomography of Gaussian states","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Antonio A. Mele, Francesco A. Mele, Jens Eisert, Lennart Bittel","submitted_at":"2025-08-20T18:03:33Z","abstract_excerpt":"The exploration of tomography of bosonic Gaussian states is presumably as old as quantum optics, but only recently, their precise and rigorous study have been moving into the focus of attention, motivated by technological developments. In this work, we present an efficient and experimentally feasible Gaussian state tomography algorithm with provable recovery trace-distance guarantees, whose sample complexity depends only on the number of modes, and - remarkably - is independent of the state's photon number or energy, up to doubly logarithmic factors. Our algorithm yields a doubly-exponential i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.14979","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2508.14979/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":"2026-07-05T11:57:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pQrJb93XRFZlVaZ36e3Gu9TGvaf5gXgBrqo4ZJD6/6XcRZjMBEqYqKqVCIrWqTgaQpo2wUsoOKOVeb0v9thJAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T22:32:58.099305Z"},"content_sha256":"41a1226d10d03007a391d8d01318549ac0aab773d93b11da82472b580d76d728","schema_version":"1.0","event_id":"sha256:41a1226d10d03007a391d8d01318549ac0aab773d93b11da82472b580d76d728"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/bundle.json","state_url":"https://pith.science/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/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":"2026-08-05T22:32:58Z","links":{"resolver":"https://pith.science/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O","bundle":"https://pith.science/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/bundle.json","state":"https://pith.science/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z7MSFA3ADVXUZ76ZLOP5F2HI2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Z7MSFA3ADVXUZ76ZLOP5F2HI2O","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":"3cc6fcf1d5d4afe55e0b2e88a752086aec03945f675852c2072f2bf87bcd1a2a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-20T18:03:33Z","title_canon_sha256":"4a365f367fa02d525651138021ce0a9b7037000005de5b5bf65766ff8a17f199"},"schema_version":"1.0","source":{"id":"2508.14979","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.14979","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"arxiv_version","alias_value":"2508.14979v1","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.14979","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_12","alias_value":"Z7MSFA3ADVXU","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_16","alias_value":"Z7MSFA3ADVXUZ76Z","created_at":"2026-07-05T11:57:04Z"},{"alias_kind":"pith_short_8","alias_value":"Z7MSFA3A","created_at":"2026-07-05T11:57:04Z"}],"graph_snapshots":[{"event_id":"sha256:41a1226d10d03007a391d8d01318549ac0aab773d93b11da82472b580d76d728","target":"graph","created_at":"2026-07-05T11:57:04Z","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/2508.14979/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The exploration of tomography of bosonic Gaussian states is presumably as old as quantum optics, but only recently, their precise and rigorous study have been moving into the focus of attention, motivated by technological developments. In this work, we present an efficient and experimentally feasible Gaussian state tomography algorithm with provable recovery trace-distance guarantees, whose sample complexity depends only on the number of modes, and - remarkably - is independent of the state's photon number or energy, up to doubly logarithmic factors. Our algorithm yields a doubly-exponential i","authors_text":"Antonio A. Mele, Francesco A. Mele, Jens Eisert, Lennart Bittel","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-20T18:03:33Z","title":"Energy-independent tomography of Gaussian states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.14979","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":"sha256:40aae0cd42e38cdc6c4a1f10c6af15abd4adb41a3e887be067bff96f99da0aef","target":"record","created_at":"2026-07-05T11:57:04Z","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":"3cc6fcf1d5d4afe55e0b2e88a752086aec03945f675852c2072f2bf87bcd1a2a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2025-08-20T18:03:33Z","title_canon_sha256":"4a365f367fa02d525651138021ce0a9b7037000005de5b5bf65766ff8a17f199"},"schema_version":"1.0","source":{"id":"2508.14979","kind":"arxiv","version":1}},"canonical_sha256":"cfd92283601d6f4cffd95b9fd2e8e8d3ad6a545d4836dc7175718a6025a5fd2d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfd92283601d6f4cffd95b9fd2e8e8d3ad6a545d4836dc7175718a6025a5fd2d","first_computed_at":"2026-07-05T11:57:04.394393Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:57:04.394393Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wBQKsVFDW/rpgJypn1KCkQw9xNp1N/DymK6+OzKIEpcI3MzP6Xg5zEprv5/gLzI9IByz3V6nsT4II5aZCZQrDA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:57:04.394817Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.14979","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40aae0cd42e38cdc6c4a1f10c6af15abd4adb41a3e887be067bff96f99da0aef","sha256:41a1226d10d03007a391d8d01318549ac0aab773d93b11da82472b580d76d728"],"state_sha256":"df5284ed96dcf9abeb755ad034b5b2ef5176fbc71d8bc07f35f2907245092eb8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LYBYRV4KC6pqE34V1Yyyqsm/eqoVtXde1gFRAlqRiFgcjpF34uBsR/8mah+waDFXaQXQXe7HQmUcw3F46L8XBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T22:32:58.105285Z","bundle_sha256":"a463fae7aacf970a8ef539ea7ad42630788d6ffc5ea47e3da3c31f7a6ec353d7"}}