{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:MQGPUPXABYEVVAOYKICO5UFGFG","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":"aa17e53671ce7a77b2a3aaa9fa7a32b180d5b518c9222b318f9a5a6b142537d1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-23T19:54:13Z","title_canon_sha256":"31a5e3383fbc384dd4ac3fe34a8244b62b35c0e45a4eb38e508cb460c13910de"},"schema_version":"1.0","source":{"id":"2606.25124","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.25124","created_at":"2026-06-25T00:18:18Z"},{"alias_kind":"arxiv_version","alias_value":"2606.25124v1","created_at":"2026-06-25T00:18:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.25124","created_at":"2026-06-25T00:18:18Z"},{"alias_kind":"pith_short_12","alias_value":"MQGPUPXABYEV","created_at":"2026-06-25T00:18:18Z"},{"alias_kind":"pith_short_16","alias_value":"MQGPUPXABYEVVAOY","created_at":"2026-06-25T00:18:18Z"},{"alias_kind":"pith_short_8","alias_value":"MQGPUPXA","created_at":"2026-06-25T00:18:18Z"}],"graph_snapshots":[{"event_id":"sha256:86a26c94cf564c9c8a1a888a9151ac3b196b1656684380c534672b4f213b3598","target":"graph","created_at":"2026-06-25T00:18:18Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.25124/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"By certifying quantum operations from measurement statistics directly, without any assumption on the internal workings of the devices involved, self-testing enables a uniquely reliable identification of quantum objects. While such device-independent characterization has been shown to be possible for states, measurements and channels, it has so far not been extended to quantum supermaps -- operations that act on quantum channels themselves and can combine them in either a well-defined causal order or also, remarkably, in an indefinite causal order. Here we show that quantum supermaps can be ide","authors_text":"Alastair A. Abbott, Cyril Branciard, Jean-Daniel Bancal, Pavel Sekatski, Victor Barizien","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-23T19:54:13Z","title":"Self-testing Quantum Supermaps"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.25124","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":"sha256:263257a65549b0eed952f4ce5fcf4da48a3c2314d45c5e0238a07c6f7338a807","target":"record","created_at":"2026-06-25T00:18:18Z","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":"aa17e53671ce7a77b2a3aaa9fa7a32b180d5b518c9222b318f9a5a6b142537d1","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-23T19:54:13Z","title_canon_sha256":"31a5e3383fbc384dd4ac3fe34a8244b62b35c0e45a4eb38e508cb460c13910de"},"schema_version":"1.0","source":{"id":"2606.25124","kind":"arxiv","version":1}},"canonical_sha256":"640cfa3ee00e095a81d85204eed0a629948a215eb3f19d27fa28b4ac805af7de","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"640cfa3ee00e095a81d85204eed0a629948a215eb3f19d27fa28b4ac805af7de","first_computed_at":"2026-06-25T00:18:18.696331Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-25T00:18:18.696331Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3zl6lp7LOEVD4quL91y2029mCuAxDJRbiVVwguBxpZrH56m3prdQ7DmNppD6lTPvlA/nU7x1QcJ5bbukYus0BA==","signature_status":"signed_v1","signed_at":"2026-06-25T00:18:18.696720Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.25124","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:263257a65549b0eed952f4ce5fcf4da48a3c2314d45c5e0238a07c6f7338a807","sha256:86a26c94cf564c9c8a1a888a9151ac3b196b1656684380c534672b4f213b3598"],"state_sha256":"df834ca2fcb23e3c863a13c282076597cc5a0b6efd4a098ff8a3860fbf2c14b7"}