{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:H3IZMJ5C6EYY6L7R2ZZFVYCJL2","short_pith_number":"pith:H3IZMJ5C","canonical_record":{"source":{"id":"2602.20108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2026-02-23T18:26:59Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"title_canon_sha256":"96dea68040b6afdaf4fb8fb003ca5db2296015c5daaac3ddb516faaa2d800341","abstract_canon_sha256":"f89e1f997bc5cee51aa096a8d1eb7443c0aefed7949a99f6bbe6640e42a347e5"},"schema_version":"1.0"},"canonical_sha256":"3ed19627a2f1318f2ff1d6725ae0495eb57ced5b5bdaf26f71c3c5d0b312074a","source":{"kind":"arxiv","id":"2602.20108","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20108","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20108v1","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20108","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"H3IZMJ5C6EYY","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"H3IZMJ5C6EYY6L7R","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"H3IZMJ5C","created_at":"2026-05-22T01:04:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:H3IZMJ5C6EYY6L7R2ZZFVYCJL2","target":"record","payload":{"canonical_record":{"source":{"id":"2602.20108","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2026-02-23T18:26:59Z","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"title_canon_sha256":"96dea68040b6afdaf4fb8fb003ca5db2296015c5daaac3ddb516faaa2d800341","abstract_canon_sha256":"f89e1f997bc5cee51aa096a8d1eb7443c0aefed7949a99f6bbe6640e42a347e5"},"schema_version":"1.0"},"canonical_sha256":"3ed19627a2f1318f2ff1d6725ae0495eb57ced5b5bdaf26f71c3c5d0b312074a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:04:55.129191Z","signature_b64":"eZ5bzH40BshaD2ncGml8Fx8/vgQUgD1DvykhRrRWX415rf82fhV4FGniaXphGEkbQdvtnGTuJ45jxVeN5HjEBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ed19627a2f1318f2ff1d6725ae0495eb57ced5b5bdaf26f71c3c5d0b312074a","last_reissued_at":"2026-05-22T01:04:55.128198Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:04:55.128198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2602.20108","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":"2026-05-22T01:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"njafslfAsyshzp60PEv3uakHuMOWt73y0zKncxHcilpQOP8RLyZrwgDAP2cRDwVZDL0TSCWKhms9HVgVbiF2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:58:54.781144Z"},"content_sha256":"6a3fabb19edfc3233674199f4918705383a5692e5afde953eaa4c502b4bef447","schema_version":"1.0","event_id":"sha256:6a3fabb19edfc3233674199f4918705383a5692e5afde953eaa4c502b4bef447"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:H3IZMJ5C6EYY6L7R2ZZFVYCJL2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Energy gap of quantum spin glasses: a projection quantum Monte Carlo study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"primary_cat":"cond-mat.dis-nn","authors_text":"G. E. Astrakharchik, L. Brodoloni, S. Giorgini, S. Pilati","submitted_at":"2026-02-23T18:26:59Z","abstract_excerpt":"The performance of quantum annealing for combinatorial optimization is fundamentally limited by the minimum energy gap $\\Delta$ encountered at quantum phase transitions. We investigate the scaling of $\\Delta$ with system size $N$ for two paradigmatic quantum spin-glass models: the two-dimensional Edwards-Anderson (2D-EA) and the all-to-all Sherrington-Kirkpatrick (SK) models. Utilizing a newly proposed unbiased energy-gap estimator for continuous-time projection quantum Monte Carlo simulations, complemented by high-performance sparse eigenvalue solvers, we characterize the gap distributions ac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20108","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/2602.20108/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":"2026-05-22T01:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UsnuEqAaiRsuAaVhRmqSPzI0qxal3qbCqhWycj032yU/sPrhMfcIBN6KC9wqPqqZ502a+uPDsgqVa1reEeKrBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T12:58:54.781879Z"},"content_sha256":"1f1c75fe64014dd6d2924c95a5d5c061bdcb8ae13fadd43c89a1cce0c4bc79d4","schema_version":"1.0","event_id":"sha256:1f1c75fe64014dd6d2924c95a5d5c061bdcb8ae13fadd43c89a1cce0c4bc79d4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/bundle.json","state_url":"https://pith.science/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/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":"2026-05-27T12:58:54Z","links":{"resolver":"https://pith.science/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2","bundle":"https://pith.science/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/bundle.json","state":"https://pith.science/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H3IZMJ5C6EYY6L7R2ZZFVYCJL2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:H3IZMJ5C6EYY6L7R2ZZFVYCJL2","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":"f89e1f997bc5cee51aa096a8d1eb7443c0aefed7949a99f6bbe6640e42a347e5","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2026-02-23T18:26:59Z","title_canon_sha256":"96dea68040b6afdaf4fb8fb003ca5db2296015c5daaac3ddb516faaa2d800341"},"schema_version":"1.0","source":{"id":"2602.20108","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2602.20108","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"2602.20108v1","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.20108","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"H3IZMJ5C6EYY","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"H3IZMJ5C6EYY6L7R","created_at":"2026-05-22T01:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"H3IZMJ5C","created_at":"2026-05-22T01:04:55Z"}],"graph_snapshots":[{"event_id":"sha256:1f1c75fe64014dd6d2924c95a5d5c061bdcb8ae13fadd43c89a1cce0c4bc79d4","target":"graph","created_at":"2026-05-22T01:04:55Z","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/2602.20108/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The performance of quantum annealing for combinatorial optimization is fundamentally limited by the minimum energy gap $\\Delta$ encountered at quantum phase transitions. We investigate the scaling of $\\Delta$ with system size $N$ for two paradigmatic quantum spin-glass models: the two-dimensional Edwards-Anderson (2D-EA) and the all-to-all Sherrington-Kirkpatrick (SK) models. Utilizing a newly proposed unbiased energy-gap estimator for continuous-time projection quantum Monte Carlo simulations, complemented by high-performance sparse eigenvalue solvers, we characterize the gap distributions ac","authors_text":"G. E. Astrakharchik, L. Brodoloni, S. Giorgini, S. Pilati","cross_cats":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2026-02-23T18:26:59Z","title":"Energy gap of quantum spin glasses: a projection quantum Monte Carlo study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.20108","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":"sha256:6a3fabb19edfc3233674199f4918705383a5692e5afde953eaa4c502b4bef447","target":"record","created_at":"2026-05-22T01:04:55Z","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":"f89e1f997bc5cee51aa096a8d1eb7443c0aefed7949a99f6bbe6640e42a347e5","cross_cats_sorted":["cond-mat.stat-mech","physics.comp-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.dis-nn","submitted_at":"2026-02-23T18:26:59Z","title_canon_sha256":"96dea68040b6afdaf4fb8fb003ca5db2296015c5daaac3ddb516faaa2d800341"},"schema_version":"1.0","source":{"id":"2602.20108","kind":"arxiv","version":1}},"canonical_sha256":"3ed19627a2f1318f2ff1d6725ae0495eb57ced5b5bdaf26f71c3c5d0b312074a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ed19627a2f1318f2ff1d6725ae0495eb57ced5b5bdaf26f71c3c5d0b312074a","first_computed_at":"2026-05-22T01:04:55.128198Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:04:55.128198Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eZ5bzH40BshaD2ncGml8Fx8/vgQUgD1DvykhRrRWX415rf82fhV4FGniaXphGEkbQdvtnGTuJ45jxVeN5HjEBg==","signature_status":"signed_v1","signed_at":"2026-05-22T01:04:55.129191Z","signed_message":"canonical_sha256_bytes"},"source_id":"2602.20108","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6a3fabb19edfc3233674199f4918705383a5692e5afde953eaa4c502b4bef447","sha256:1f1c75fe64014dd6d2924c95a5d5c061bdcb8ae13fadd43c89a1cce0c4bc79d4"],"state_sha256":"3e390dcc1c60fb2be2bb9b1133be349284847b67b8f4246ce9e062f3f3d70789"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MvQbg8EDxlE6k8FRMtGsuWYdKFs3ddRt23/dUGj8JVU1iCw9qsoS+rA1ZeUUpzSIRNKluHYc5W4tqyamClmMBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T12:58:54.785338Z","bundle_sha256":"86f03a4e60c3a8487bff57e7508ddcfcfa240e93284f91cf68ec94a7dacfd4f4"}}