{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:TWOZZMH2CMFP6U5IWYEAT5HYY6","short_pith_number":"pith:TWOZZMH2","canonical_record":{"source":{"id":"2402.00469","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-01T10:16:04Z","cross_cats_sorted":[],"title_canon_sha256":"ac5c638dba4c97e3bea63c16c44b6304e8c27e6b6116425093666dce009bb023","abstract_canon_sha256":"29bb6f781df2970996a87c1e939d77f1d04b45de40687ad643788c8361c36c22"},"schema_version":"1.0"},"canonical_sha256":"9d9d9cb0fa130aff53a8b60809f4f8c7a445d2c2c39d04f7215f0a477a6f3b96","source":{"kind":"arxiv","id":"2402.00469","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.00469","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"arxiv_version","alias_value":"2402.00469v1","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.00469","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_12","alias_value":"TWOZZMH2CMFP","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_16","alias_value":"TWOZZMH2CMFP6U5I","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_8","alias_value":"TWOZZMH2","created_at":"2026-07-05T07:40:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:TWOZZMH2CMFP6U5IWYEAT5HYY6","target":"record","payload":{"canonical_record":{"source":{"id":"2402.00469","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-01T10:16:04Z","cross_cats_sorted":[],"title_canon_sha256":"ac5c638dba4c97e3bea63c16c44b6304e8c27e6b6116425093666dce009bb023","abstract_canon_sha256":"29bb6f781df2970996a87c1e939d77f1d04b45de40687ad643788c8361c36c22"},"schema_version":"1.0"},"canonical_sha256":"9d9d9cb0fa130aff53a8b60809f4f8c7a445d2c2c39d04f7215f0a477a6f3b96","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:40:12.177323Z","signature_b64":"T08VCVNJFANx1JWlcjNKiHKTvfM98ALq9XHnELsUnI8XDulkzWcXX+WpyAWHQSj9B+3DT2A0lvZKlcHxOJRkDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d9d9cb0fa130aff53a8b60809f4f8c7a445d2c2c39d04f7215f0a477a6f3b96","last_reissued_at":"2026-07-05T07:40:12.176830Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:40:12.176830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.00469","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":"2026-07-05T07:40:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PA5FKBpNEQlL583bfWzQe0bH5H1oWTDpoFslQFFIYszyDgkcKOgKedSIhE4wswHRX/a1fQwUAc+HpToXjpzEDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:07:00.583995Z"},"content_sha256":"546a35278561554f761e96a94e51e9b82715f6bf4c5b14f2b21998521e80cd43","schema_version":"1.0","event_id":"sha256:546a35278561554f761e96a94e51e9b82715f6bf4c5b14f2b21998521e80cd43"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:TWOZZMH2CMFP6U5IWYEAT5HYY6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spatio-Temporal Characterization of Qubit Routing in Connectivity-Constrained Quantum Processors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Carmen G. Almudever, Eduard Alarcon, Sahar Ben Rached, Sergi Abadal","submitted_at":"2024-02-01T10:16:04Z","abstract_excerpt":"Designing efficient quantum processor topologies is pivotal for advancing scalable quantum computing architectures. The communication overhead, a critical factor affecting the execution fidelity of quantum circuits, arises from inevitable qubit routing that brings interacting qubits into physical proximity by the means of serial SWAP gates to enable the direct two-qubit gate application. Characterizing the qubit movement across the processor is crucial for tailoring techniques for minimizing the SWAP gates. This work presents a comparative analysis of the resulting communication overhead among"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.00469","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/2402.00469/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":"2026-07-05T07:40:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZiFvJzr6gOkAvLciyparw3XlY8VIiiYpTd3K3ct6vHzZK/0/jLEY/i3olbomjc7Cgo+pxQRPFPwa3Jj2qJCGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T05:07:00.584873Z"},"content_sha256":"85d053c114afc448ab4cb3a39a4e2499e46f4b487557180239be079b608b2e58","schema_version":"1.0","event_id":"sha256:85d053c114afc448ab4cb3a39a4e2499e46f4b487557180239be079b608b2e58"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/bundle.json","state_url":"https://pith.science/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/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":"2026-08-06T05:07:00Z","links":{"resolver":"https://pith.science/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6","bundle":"https://pith.science/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/bundle.json","state":"https://pith.science/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TWOZZMH2CMFP6U5IWYEAT5HYY6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:TWOZZMH2CMFP6U5IWYEAT5HYY6","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":"29bb6f781df2970996a87c1e939d77f1d04b45de40687ad643788c8361c36c22","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-01T10:16:04Z","title_canon_sha256":"ac5c638dba4c97e3bea63c16c44b6304e8c27e6b6116425093666dce009bb023"},"schema_version":"1.0","source":{"id":"2402.00469","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.00469","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"arxiv_version","alias_value":"2402.00469v1","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.00469","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_12","alias_value":"TWOZZMH2CMFP","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_16","alias_value":"TWOZZMH2CMFP6U5I","created_at":"2026-07-05T07:40:12Z"},{"alias_kind":"pith_short_8","alias_value":"TWOZZMH2","created_at":"2026-07-05T07:40:12Z"}],"graph_snapshots":[{"event_id":"sha256:85d053c114afc448ab4cb3a39a4e2499e46f4b487557180239be079b608b2e58","target":"graph","created_at":"2026-07-05T07:40:12Z","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/2402.00469/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Designing efficient quantum processor topologies is pivotal for advancing scalable quantum computing architectures. The communication overhead, a critical factor affecting the execution fidelity of quantum circuits, arises from inevitable qubit routing that brings interacting qubits into physical proximity by the means of serial SWAP gates to enable the direct two-qubit gate application. Characterizing the qubit movement across the processor is crucial for tailoring techniques for minimizing the SWAP gates. This work presents a comparative analysis of the resulting communication overhead among","authors_text":"Carmen G. Almudever, Eduard Alarcon, Sahar Ben Rached, Sergi Abadal","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-01T10:16:04Z","title":"Spatio-Temporal Characterization of Qubit Routing in Connectivity-Constrained Quantum Processors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.00469","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":"sha256:546a35278561554f761e96a94e51e9b82715f6bf4c5b14f2b21998521e80cd43","target":"record","created_at":"2026-07-05T07:40:12Z","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":"29bb6f781df2970996a87c1e939d77f1d04b45de40687ad643788c8361c36c22","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-02-01T10:16:04Z","title_canon_sha256":"ac5c638dba4c97e3bea63c16c44b6304e8c27e6b6116425093666dce009bb023"},"schema_version":"1.0","source":{"id":"2402.00469","kind":"arxiv","version":1}},"canonical_sha256":"9d9d9cb0fa130aff53a8b60809f4f8c7a445d2c2c39d04f7215f0a477a6f3b96","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d9d9cb0fa130aff53a8b60809f4f8c7a445d2c2c39d04f7215f0a477a6f3b96","first_computed_at":"2026-07-05T07:40:12.176830Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:40:12.176830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T08VCVNJFANx1JWlcjNKiHKTvfM98ALq9XHnELsUnI8XDulkzWcXX+WpyAWHQSj9B+3DT2A0lvZKlcHxOJRkDw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:40:12.177323Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.00469","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:546a35278561554f761e96a94e51e9b82715f6bf4c5b14f2b21998521e80cd43","sha256:85d053c114afc448ab4cb3a39a4e2499e46f4b487557180239be079b608b2e58"],"state_sha256":"608cbaa4247d7299161619ca1ed859e7a7b5c24d0e0ed77c7e4a2284d4621629"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sOY+RxYjkOiRWzg56pUq8yhNtff9fBZndNd+Wk3bXRuQN5HtTpQXOQ7yzQmwE6I3tJXHTk1m6YySb217RvndBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T05:07:00.592069Z","bundle_sha256":"92ff374b53b17a40007b74dfba52cbb661c2cf820eb08c052d76b5d6f6aa700e"}}