{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:62JEQ3DV76TYEYPLXC4Q2JHN3H","short_pith_number":"pith:62JEQ3DV","canonical_record":{"source":{"id":"1510.08905","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-29T21:12:51Z","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"title_canon_sha256":"d99bab70d5ec621597f5e887ab47b00e56d80912c2acea032893744489fb5e61","abstract_canon_sha256":"2bc9718044255851c976d6fe7a7b5b921605ff3abf8904c38c309daede76f46f"},"schema_version":"1.0"},"canonical_sha256":"f692486c75ffa78261ebb8b90d24edd9d160ab61719faa93d0bcda7a3a6d0908","source":{"kind":"arxiv","id":"1510.08905","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08905","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08905v2","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08905","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"62JEQ3DV76TY","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"62JEQ3DV76TYEYPL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"62JEQ3DV","created_at":"2026-05-18T12:29:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:62JEQ3DV76TYEYPLXC4Q2JHN3H","target":"record","payload":{"canonical_record":{"source":{"id":"1510.08905","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-29T21:12:51Z","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"title_canon_sha256":"d99bab70d5ec621597f5e887ab47b00e56d80912c2acea032893744489fb5e61","abstract_canon_sha256":"2bc9718044255851c976d6fe7a7b5b921605ff3abf8904c38c309daede76f46f"},"schema_version":"1.0"},"canonical_sha256":"f692486c75ffa78261ebb8b90d24edd9d160ab61719faa93d0bcda7a3a6d0908","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:17:32.797301Z","signature_b64":"TOIITmdc9tDaMDP7yFI00XMo8RdUcu/MoRAPuuROXqNeA5B96SyVmOCpiXFJF46z8Ya/AJts1pFFIATSkt8DAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f692486c75ffa78261ebb8b90d24edd9d160ab61719faa93d0bcda7a3a6d0908","last_reissued_at":"2026-05-18T01:17:32.796635Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:17:32.796635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.08905","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":"2026-05-18T01:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GLupQGYu1al327wSNkprsm0/YRbszwSUagMqGu7nv2QDpDuwFhYVRqUP9R4SCEvf1HfVSSfPtRSf0GXpqI6GBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:53:00.684262Z"},"content_sha256":"9ab76b17f663c337adaf2608db31c25b94bd7d27fa309710659a3ef36a79455b","schema_version":"1.0","event_id":"sha256:9ab76b17f663c337adaf2608db31c25b94bd7d27fa309710659a3ef36a79455b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:62JEQ3DV76TYEYPLXC4Q2JHN3H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revivals in Quantum Walks with quasi-periodically time-dependent coin","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","math-ph","math.MP"],"primary_cat":"quant-ph","authors_text":"C. Cedzich, R. F. Werner","submitted_at":"2015-10-29T21:12:51Z","abstract_excerpt":"We provide an explanation of recent experimental results of Xue et al., where full revivals in a time-dependent quantum walk model with a periodically changing coin are found. Using methods originally developed for \"electric\" walks with a space-dependent, rather than a time-dependent coin, we provide a full explanation of the observations of Xue et al. We extend the analysis from periodic time-dependence to quasi-periodic behaviour with periods incommensurate to the step size. Spectral analysis, one of the principal tools for the study of electric walks, fails for time-dependent systems, but w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08905","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":"2026-05-18T01:17:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qGCAWbBMfuGRGlF79sUnFhSXh350PT5RcFtDzbdv7B+QjI9ImDhL3ba+lzravJFFtnw1QDD7dYEtsQZ3LNjTDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:53:00.684640Z"},"content_sha256":"d2e941fe08f58c0fe71b912b6fa052d3711db397dd8d8d94f1e1ebd4f624fac6","schema_version":"1.0","event_id":"sha256:d2e941fe08f58c0fe71b912b6fa052d3711db397dd8d8d94f1e1ebd4f624fac6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/bundle.json","state_url":"https://pith.science/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/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":"2026-06-03T05:53:00Z","links":{"resolver":"https://pith.science/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H","bundle":"https://pith.science/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/bundle.json","state":"https://pith.science/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/62JEQ3DV76TYEYPLXC4Q2JHN3H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:62JEQ3DV76TYEYPLXC4Q2JHN3H","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":"2bc9718044255851c976d6fe7a7b5b921605ff3abf8904c38c309daede76f46f","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-29T21:12:51Z","title_canon_sha256":"d99bab70d5ec621597f5e887ab47b00e56d80912c2acea032893744489fb5e61"},"schema_version":"1.0","source":{"id":"1510.08905","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.08905","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"arxiv_version","alias_value":"1510.08905v2","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.08905","created_at":"2026-05-18T01:17:32Z"},{"alias_kind":"pith_short_12","alias_value":"62JEQ3DV76TY","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"62JEQ3DV76TYEYPL","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"62JEQ3DV","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:d2e941fe08f58c0fe71b912b6fa052d3711db397dd8d8d94f1e1ebd4f624fac6","target":"graph","created_at":"2026-05-18T01:17:32Z","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":"We provide an explanation of recent experimental results of Xue et al., where full revivals in a time-dependent quantum walk model with a periodically changing coin are found. Using methods originally developed for \"electric\" walks with a space-dependent, rather than a time-dependent coin, we provide a full explanation of the observations of Xue et al. We extend the analysis from periodic time-dependence to quasi-periodic behaviour with periods incommensurate to the step size. Spectral analysis, one of the principal tools for the study of electric walks, fails for time-dependent systems, but w","authors_text":"C. Cedzich, R. F. Werner","cross_cats":["cond-mat.other","math-ph","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-29T21:12:51Z","title":"Revivals in Quantum Walks with quasi-periodically time-dependent coin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.08905","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":"sha256:9ab76b17f663c337adaf2608db31c25b94bd7d27fa309710659a3ef36a79455b","target":"record","created_at":"2026-05-18T01:17:32Z","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":"2bc9718044255851c976d6fe7a7b5b921605ff3abf8904c38c309daede76f46f","cross_cats_sorted":["cond-mat.other","math-ph","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-29T21:12:51Z","title_canon_sha256":"d99bab70d5ec621597f5e887ab47b00e56d80912c2acea032893744489fb5e61"},"schema_version":"1.0","source":{"id":"1510.08905","kind":"arxiv","version":2}},"canonical_sha256":"f692486c75ffa78261ebb8b90d24edd9d160ab61719faa93d0bcda7a3a6d0908","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f692486c75ffa78261ebb8b90d24edd9d160ab61719faa93d0bcda7a3a6d0908","first_computed_at":"2026-05-18T01:17:32.796635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:32.796635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TOIITmdc9tDaMDP7yFI00XMo8RdUcu/MoRAPuuROXqNeA5B96SyVmOCpiXFJF46z8Ya/AJts1pFFIATSkt8DAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:32.797301Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.08905","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9ab76b17f663c337adaf2608db31c25b94bd7d27fa309710659a3ef36a79455b","sha256:d2e941fe08f58c0fe71b912b6fa052d3711db397dd8d8d94f1e1ebd4f624fac6"],"state_sha256":"923feb89758984e10fae101f74ed8d81a0c84ce62fe519b38abd422aafc72360"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"12rdbs3HSmaGPyPT2kLXbPO9EQweOqSn/KKsqW+juIq6KFm686bhw8X/NeP2OsQ4VFhMlihs1cF4otBu00V3BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:53:00.686614Z","bundle_sha256":"67ed189eb2886f434fd7d085ea361073244e334bf1a90d5a2aa824e137f60ea0"}}