{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:IDOLLOT3W3VZR7ZOHLQWNPJGYR","short_pith_number":"pith:IDOLLOT3","canonical_record":{"source":{"id":"2606.22067","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-20T14:37:04Z","cross_cats_sorted":[],"title_canon_sha256":"a8a750d603a5083522032a8a5ff4f9b0b4c46e40a32e327160cf9e24bdad0568","abstract_canon_sha256":"0f42a8c4c377310f54e8c2068be9ad52f4a89e619527697c7ef81e941ef620fb"},"schema_version":"1.0"},"canonical_sha256":"40dcb5ba7bb6eb98ff2e3ae166bd26c466d57b64abd7a9160f7bd5d1433661c1","source":{"kind":"arxiv","id":"2606.22067","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22067","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22067v1","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22067","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_12","alias_value":"IDOLLOT3W3VZ","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_16","alias_value":"IDOLLOT3W3VZR7ZO","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_8","alias_value":"IDOLLOT3","created_at":"2026-06-23T02:13:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:IDOLLOT3W3VZR7ZOHLQWNPJGYR","target":"record","payload":{"canonical_record":{"source":{"id":"2606.22067","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-20T14:37:04Z","cross_cats_sorted":[],"title_canon_sha256":"a8a750d603a5083522032a8a5ff4f9b0b4c46e40a32e327160cf9e24bdad0568","abstract_canon_sha256":"0f42a8c4c377310f54e8c2068be9ad52f4a89e619527697c7ef81e941ef620fb"},"schema_version":"1.0"},"canonical_sha256":"40dcb5ba7bb6eb98ff2e3ae166bd26c466d57b64abd7a9160f7bd5d1433661c1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T02:13:06.863299Z","signature_b64":"hMXmSTWTgAlPjROGKWViekiH3QSCliXTetCofEF2vPUXC/7Iq+WXw00EPEWxd5ZQqFuJ7UWxu1XSzEBstdfeBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"40dcb5ba7bb6eb98ff2e3ae166bd26c466d57b64abd7a9160f7bd5d1433661c1","last_reissued_at":"2026-06-23T02:13:06.862911Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T02:13:06.862911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.22067","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":"2026-06-23T02:13:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nx4xwClqvZRlgZG13YjHhP+5SLXYezvfRUCr40GLL0gF7UlPyR9+H7YYajFwfuXnxygP/BBlFXlAjMg+LhonCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T16:08:33.774745Z"},"content_sha256":"c8a1e7988b2fa18aae3f3f49051a671b646b2292a4d98899068b5df9af877854","schema_version":"1.0","event_id":"sha256:c8a1e7988b2fa18aae3f3f49051a671b646b2292a4d98899068b5df9af877854"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:IDOLLOT3W3VZR7ZOHLQWNPJGYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detector-Grade Germanium as a Low-Disorder Host for Indium-Acceptor Spin Qubits: A Five-Qubit Materials-to-Architecture Design Study","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Prem, D.-M. Mei, K.-M. Dong, N. Budhathoki, S. A. Panamaldeniya, S. Bhattarai, S. Chhetri","submitted_at":"2026-06-20T14:37:04Z","abstract_excerpt":"Acceptor-bound hole spins in germanium (Ge) offer a promising but underexplored route to semiconductor quantum information processing. We present a theory-guided design study of a detector-grade Ge acceptor-spin platform based on intentionally incorporated indium (In) acceptors in ultra-high-purity Ge. The proposed materials strategy combines a residual impurity background near $10^{10} \\mathrm{cm^{-3}}$ with a target In density of approximately $2\\times10^{14} \\mathrm{cm^{-3}}$, corresponding to an acceptor spacing of about 170 nanometer. A 1 $\\mu$m-long active channel with a suitable transve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22067","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/2606.22067/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":"2026-06-23T02:13:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RmerY24iCI+HqNTYqhfdnItO1zhjo90uSbMEbIZU+ouQf8DZILoErjts6VZoRjPoGGFx+bQuKbFJfOrxSNmZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T16:08:33.775110Z"},"content_sha256":"c514f585a2af507ae73ba9d6b194543eb2f0f643aa6456c5a3ef74bc46419c42","schema_version":"1.0","event_id":"sha256:c514f585a2af507ae73ba9d6b194543eb2f0f643aa6456c5a3ef74bc46419c42"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/bundle.json","state_url":"https://pith.science/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/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":"2026-06-28T16:08:33Z","links":{"resolver":"https://pith.science/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR","bundle":"https://pith.science/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/bundle.json","state":"https://pith.science/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IDOLLOT3W3VZR7ZOHLQWNPJGYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IDOLLOT3W3VZR7ZOHLQWNPJGYR","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":"0f42a8c4c377310f54e8c2068be9ad52f4a89e619527697c7ef81e941ef620fb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-20T14:37:04Z","title_canon_sha256":"a8a750d603a5083522032a8a5ff4f9b0b4c46e40a32e327160cf9e24bdad0568"},"schema_version":"1.0","source":{"id":"2606.22067","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.22067","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"arxiv_version","alias_value":"2606.22067v1","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.22067","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_12","alias_value":"IDOLLOT3W3VZ","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_16","alias_value":"IDOLLOT3W3VZR7ZO","created_at":"2026-06-23T02:13:06Z"},{"alias_kind":"pith_short_8","alias_value":"IDOLLOT3","created_at":"2026-06-23T02:13:06Z"}],"graph_snapshots":[{"event_id":"sha256:c514f585a2af507ae73ba9d6b194543eb2f0f643aa6456c5a3ef74bc46419c42","target":"graph","created_at":"2026-06-23T02:13:06Z","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/2606.22067/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Acceptor-bound hole spins in germanium (Ge) offer a promising but underexplored route to semiconductor quantum information processing. We present a theory-guided design study of a detector-grade Ge acceptor-spin platform based on intentionally incorporated indium (In) acceptors in ultra-high-purity Ge. The proposed materials strategy combines a residual impurity background near $10^{10} \\mathrm{cm^{-3}}$ with a target In density of approximately $2\\times10^{14} \\mathrm{cm^{-3}}$, corresponding to an acceptor spacing of about 170 nanometer. A 1 $\\mu$m-long active channel with a suitable transve","authors_text":"A. Prem, D.-M. Mei, K.-M. Dong, N. Budhathoki, S. A. Panamaldeniya, S. Bhattarai, S. Chhetri","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-20T14:37:04Z","title":"Detector-Grade Germanium as a Low-Disorder Host for Indium-Acceptor Spin Qubits: A Five-Qubit Materials-to-Architecture Design Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22067","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:c8a1e7988b2fa18aae3f3f49051a671b646b2292a4d98899068b5df9af877854","target":"record","created_at":"2026-06-23T02:13:06Z","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":"0f42a8c4c377310f54e8c2068be9ad52f4a89e619527697c7ef81e941ef620fb","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-06-20T14:37:04Z","title_canon_sha256":"a8a750d603a5083522032a8a5ff4f9b0b4c46e40a32e327160cf9e24bdad0568"},"schema_version":"1.0","source":{"id":"2606.22067","kind":"arxiv","version":1}},"canonical_sha256":"40dcb5ba7bb6eb98ff2e3ae166bd26c466d57b64abd7a9160f7bd5d1433661c1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"40dcb5ba7bb6eb98ff2e3ae166bd26c466d57b64abd7a9160f7bd5d1433661c1","first_computed_at":"2026-06-23T02:13:06.862911Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T02:13:06.862911Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hMXmSTWTgAlPjROGKWViekiH3QSCliXTetCofEF2vPUXC/7Iq+WXw00EPEWxd5ZQqFuJ7UWxu1XSzEBstdfeBg==","signature_status":"signed_v1","signed_at":"2026-06-23T02:13:06.863299Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.22067","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8a1e7988b2fa18aae3f3f49051a671b646b2292a4d98899068b5df9af877854","sha256:c514f585a2af507ae73ba9d6b194543eb2f0f643aa6456c5a3ef74bc46419c42"],"state_sha256":"e8a86ff1f967c876c1f6a5b98d3a7a16c94fa70201d23e29e9682a8f59d27964"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KWUusnkSxZekfJ3fFamHx6FDGCFBCc4ddVODhhAiYMZWxUgnNPP18/P0y8qbTYnycR2HVId1wywBnelSfa7UDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T16:08:33.777086Z","bundle_sha256":"e486060203eb8371485d2d8a8417757b470ba46fa669a4d5de237b482d2073a8"}}