{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:PYX4ZAKHC2KEFLD2GL3FZGJIIJ","short_pith_number":"pith:PYX4ZAKH","canonical_record":{"source":{"id":"1509.02703","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-09T10:16:34Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"ce134260380a63ae1d64ebbcbf7c4cf5aa72756aa253f0f5ae053d0f0fe234d7","abstract_canon_sha256":"9eb31ae16bf8a8e90c23f5d8227f6080d23ffd8a71c3923a484425a8006ace1c"},"schema_version":"1.0"},"canonical_sha256":"7e2fcc8147169442ac7a32f65c9928424e2192dbca6cf1406931f52768f9cd7d","source":{"kind":"arxiv","id":"1509.02703","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.02703","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"arxiv_version","alias_value":"1509.02703v2","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.02703","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"pith_short_12","alias_value":"PYX4ZAKHC2KE","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PYX4ZAKHC2KEFLD2","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PYX4ZAKH","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:PYX4ZAKHC2KEFLD2GL3FZGJIIJ","target":"record","payload":{"canonical_record":{"source":{"id":"1509.02703","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-09T10:16:34Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"ce134260380a63ae1d64ebbcbf7c4cf5aa72756aa253f0f5ae053d0f0fe234d7","abstract_canon_sha256":"9eb31ae16bf8a8e90c23f5d8227f6080d23ffd8a71c3923a484425a8006ace1c"},"schema_version":"1.0"},"canonical_sha256":"7e2fcc8147169442ac7a32f65c9928424e2192dbca6cf1406931f52768f9cd7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:52.486174Z","signature_b64":"16MKIqIcJERIhPsf0ayLrdHHVJYE+5+ocmN+jCFMdlWPRvnYvlxmtTAbHALvOkscilp5x2mmlQUL46aAtPmYDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7e2fcc8147169442ac7a32f65c9928424e2192dbca6cf1406931f52768f9cd7d","last_reissued_at":"2026-05-18T01:18:52.485669Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:52.485669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.02703","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":"2026-05-18T01:18:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4ZSiXn24vAqHBDxKDMrVGIah10Y4QNp3rVd8892M7Met5N30sGJNB9ABiv9yQrs5bvQCANdG7wLrcTtrYEg5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:37:07.190365Z"},"content_sha256":"903ff39bdf0335a6bd521a186aba5aeda27f410c958f3586b6f712681608a5b2","schema_version":"1.0","event_id":"sha256:903ff39bdf0335a6bd521a186aba5aeda27f410c958f3586b6f712681608a5b2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:PYX4ZAKHC2KEFLD2GL3FZGJIIJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin models and boson sampling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"quant-ph","authors_text":"Alan Aspuru-Guzik, Borja Peropadre, Juan Jose Garcia-Ripoll","submitted_at":"2015-09-09T10:16:34Z","abstract_excerpt":"In this work we proof that boson sampling with $N$ particles in $M$ modes is equivalent to short-time evolution with $N$ excitations in an XY model of $2N$ spins. This mapping is efficient whenever the boson bunching probability is small, and errors can be efficiently postselected. This mapping opens the door to boson sampling with quantum simulators or general purpose quantum computers, and highlights the complexity of time-evolution with critical spin models, even for very short times."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02703","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":""},"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":"2026-05-18T01:18:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"m8iJ6PHY1t2b3JhGLz6KfHzNMCGW2jFwC4IAOOxXcbt1T+rBMet6PsvRU2UIQ0YxhzyvQuB8bkblLnJnRNCGBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T21:37:07.191031Z"},"content_sha256":"805910326dee32eb5ae6a2111b15aacead606a5e18520360c4c77453ee9e4e23","schema_version":"1.0","event_id":"sha256:805910326dee32eb5ae6a2111b15aacead606a5e18520360c4c77453ee9e4e23"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/bundle.json","state_url":"https://pith.science/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/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":"2026-05-27T21:37:07Z","links":{"resolver":"https://pith.science/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ","bundle":"https://pith.science/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/bundle.json","state":"https://pith.science/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PYX4ZAKHC2KEFLD2GL3FZGJIIJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:PYX4ZAKHC2KEFLD2GL3FZGJIIJ","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":"9eb31ae16bf8a8e90c23f5d8227f6080d23ffd8a71c3923a484425a8006ace1c","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-09T10:16:34Z","title_canon_sha256":"ce134260380a63ae1d64ebbcbf7c4cf5aa72756aa253f0f5ae053d0f0fe234d7"},"schema_version":"1.0","source":{"id":"1509.02703","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.02703","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"arxiv_version","alias_value":"1509.02703v2","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.02703","created_at":"2026-05-18T01:18:52Z"},{"alias_kind":"pith_short_12","alias_value":"PYX4ZAKHC2KE","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"PYX4ZAKHC2KEFLD2","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"PYX4ZAKH","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:805910326dee32eb5ae6a2111b15aacead606a5e18520360c4c77453ee9e4e23","target":"graph","created_at":"2026-05-18T01:18:52Z","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"},"paper":{"abstract_excerpt":"In this work we proof that boson sampling with $N$ particles in $M$ modes is equivalent to short-time evolution with $N$ excitations in an XY model of $2N$ spins. This mapping is efficient whenever the boson bunching probability is small, and errors can be efficiently postselected. This mapping opens the door to boson sampling with quantum simulators or general purpose quantum computers, and highlights the complexity of time-evolution with critical spin models, even for very short times.","authors_text":"Alan Aspuru-Guzik, Borja Peropadre, Juan Jose Garcia-Ripoll","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-09T10:16:34Z","title":"Spin models and boson sampling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.02703","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":"sha256:903ff39bdf0335a6bd521a186aba5aeda27f410c958f3586b6f712681608a5b2","target":"record","created_at":"2026-05-18T01:18:52Z","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":"9eb31ae16bf8a8e90c23f5d8227f6080d23ffd8a71c3923a484425a8006ace1c","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-09-09T10:16:34Z","title_canon_sha256":"ce134260380a63ae1d64ebbcbf7c4cf5aa72756aa253f0f5ae053d0f0fe234d7"},"schema_version":"1.0","source":{"id":"1509.02703","kind":"arxiv","version":2}},"canonical_sha256":"7e2fcc8147169442ac7a32f65c9928424e2192dbca6cf1406931f52768f9cd7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7e2fcc8147169442ac7a32f65c9928424e2192dbca6cf1406931f52768f9cd7d","first_computed_at":"2026-05-18T01:18:52.485669Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:52.485669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"16MKIqIcJERIhPsf0ayLrdHHVJYE+5+ocmN+jCFMdlWPRvnYvlxmtTAbHALvOkscilp5x2mmlQUL46aAtPmYDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:52.486174Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.02703","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:903ff39bdf0335a6bd521a186aba5aeda27f410c958f3586b6f712681608a5b2","sha256:805910326dee32eb5ae6a2111b15aacead606a5e18520360c4c77453ee9e4e23"],"state_sha256":"b57258cffdba9b4d42ec08490d2f592b9645939fddda71f543f524c3a60a8844"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mZCQ0QE20/r67sjPtnAwjFJZPjXpj4zh18hREaY8p4uv+gD7hR3W9YuZwmbVaZZs+ypg8y248BhwqFdBn1x+Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T21:37:07.194507Z","bundle_sha256":"8c83ff7a54fbb64d47cd1b38567b03f94e0b96d709eb04e1b01afe4805791386"}}