{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:6XNWBIHVCGQL2M4MUDHLMZHWDA","short_pith_number":"pith:6XNWBIHV","canonical_record":{"source":{"id":"2605.23622","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-22T13:28:35Z","cross_cats_sorted":[],"title_canon_sha256":"193652109d1535047668f1f1fffeba010392e75423f53b17dcc4d88db059fe80","abstract_canon_sha256":"0e4a9be56b632ab88c7b62eb6cc2a31cef45fdc75e3c4874981837915ac734ac"},"schema_version":"1.0"},"canonical_sha256":"f5db60a0f511a0bd338ca0ceb664f61828a3965539f4cee1aee697b828067bea","source":{"kind":"arxiv","id":"2605.23622","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23622","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23622v1","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23622","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_12","alias_value":"6XNWBIHVCGQL","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_16","alias_value":"6XNWBIHVCGQL2M4M","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_8","alias_value":"6XNWBIHV","created_at":"2026-05-25T02:02:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:6XNWBIHVCGQL2M4MUDHLMZHWDA","target":"record","payload":{"canonical_record":{"source":{"id":"2605.23622","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-22T13:28:35Z","cross_cats_sorted":[],"title_canon_sha256":"193652109d1535047668f1f1fffeba010392e75423f53b17dcc4d88db059fe80","abstract_canon_sha256":"0e4a9be56b632ab88c7b62eb6cc2a31cef45fdc75e3c4874981837915ac734ac"},"schema_version":"1.0"},"canonical_sha256":"f5db60a0f511a0bd338ca0ceb664f61828a3965539f4cee1aee697b828067bea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-25T02:02:22.413876Z","signature_b64":"Enq1965TYPpX+JupZHjeLB6I+jZ+UNl9iaDLCJQDv5Zg6TEJknfxV8WMxnQzPgmQ3x6dzSNFEMe3fox77PnMBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f5db60a0f511a0bd338ca0ceb664f61828a3965539f4cee1aee697b828067bea","last_reissued_at":"2026-05-25T02:02:22.413335Z","signature_status":"signed_v1","first_computed_at":"2026-05-25T02:02:22.413335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.23622","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":"2026-05-25T02:02:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D1RmXF+NkaMEovmKOMOsFM3M/uwTAo8jjIZG8q/CdkHwSsP2qaMjJf9VZN/oZK0MrWFWUl6KFoFJNu9P/apwCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:14:40.910895Z"},"content_sha256":"b16f306a46d9116682d5dc3e7746aacf14c62d66b26a559412d42adfc3385c34","schema_version":"1.0","event_id":"sha256:b16f306a46d9116682d5dc3e7746aacf14c62d66b26a559412d42adfc3385c34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:6XNWBIHVCGQL2M4MUDHLMZHWDA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Information transfer along the causal lightcone of a brickwork quantum circuit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Shane Dooley, Shivansh Singh","submitted_at":"2026-05-22T13:28:35Z","abstract_excerpt":"Understanding how local information propagates through many-body quantum systems is a central problem in nonequilibrium dynamics, with important implications for quantum communication, state transfer, and remote sensing. In this work, we investigate information transfer along a one-dimensional open chain of qudits, focusing on the task of recovering information initially encoded at one end via measurements performed at the opposite end. By restricting the dynamics to brickwork quantum circuits, and considering small $M$-qudit subsystems on the causal ``lightcone'' of the circuit, we obtain sev"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23622","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/2605.23622/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":"2026-05-25T02:02:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1L6NCtJg7pLL7Udt3Mski9/DhBlmlbsVNlO9Rt2eXaIUCJKz+5mufO23qWktoOxG3xfd77VkbiLhHjnB4MFkAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:14:40.911691Z"},"content_sha256":"e47afade2b766584954f8694d48b25b796bfdabf86d89f654ec4a1b9292ecbb2","schema_version":"1.0","event_id":"sha256:e47afade2b766584954f8694d48b25b796bfdabf86d89f654ec4a1b9292ecbb2"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:6XNWBIHVCGQL2M4MUDHLMZHWDA","target":"integrity","payload":{"note":"DOI in the printed bibliography is fragmented by whitespace or line breaks. A longer candidate (10.1063/1.2218675/13794658/0835061) was visible in the surrounding text but could not be confirmed against doi.org as printed.","snippet":"D. P´ erez-Garc´ ıa, M. M. Wolf, D. Petz, and M. B. Ruskai, Contractivity of positive and trace-preserving maps un- der lp norms, Journal of Mathematical Physics47, 083506 (2006), https://pubs.aip.org/aip/jmp/article- pdf/doi/10.1063/1.2218","arxiv_id":"2605.23622","detector":"doi_compliance","evidence":{"ref_index":37,"verdict_class":"incontrovertible","resolved_title":null,"printed_excerpt":"D. P´ erez-Garc´ ıa, M. M. Wolf, D. Petz, and M. B. Ruskai, Contractivity of positive and trace-preserving maps un- der lp norms, Journal of Mathematical Physics47, 083506 (2006), https://pubs.aip.org/aip/jmp/article- pdf/doi/10.1063/1.2218","reconstructed_doi":"10.1063/1.2218675/13794658/0835061"},"severity":"advisory","ref_index":37,"audited_at":"2026-05-25T04:28:40.748255Z","event_type":"pith.integrity.v1","detected_doi":"10.1063/1.2218675/13794658/0835061","detector_url":"https://pith.science/pith-integrity-protocol#doi_compliance","external_url":null,"finding_type":"recoverable_identifier","evidence_hash":"c17128283fb710e7bd105568d9372e188da8da46065eb5497ec9580ab426cb29","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null,"integrity_event_id":7354,"payload_sha256":"43114d614e32adc9d1e0213c66dda41475a09c0cedc0118952434d10d08df051","signature_b64":"ddtLaMVh1lqvoiZZ5E+1ccfSRLG6Wmea2St8HzPJrzoTsJQ/yEDyQjeqQaxV0anwfFRXGJWP0EAqCdTJAByXAQ==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-25T04:29:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I0qM7ldHMdD0AOdUmTBqmvyDf1s++eiy9ZoodaUrMeoBTEaC7Gi52uqRjITczfLKkhS6HWlgyxIROa+GtRjPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:14:40.913472Z"},"content_sha256":"6c2381da7038cee2a8d35150dd2b5df6f808391d7179b1db08f18143e3b216b2","schema_version":"1.0","event_id":"sha256:6c2381da7038cee2a8d35150dd2b5df6f808391d7179b1db08f18143e3b216b2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/bundle.json","state_url":"https://pith.science/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/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":"2026-05-27T19:14:40Z","links":{"resolver":"https://pith.science/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA","bundle":"https://pith.science/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/bundle.json","state":"https://pith.science/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6XNWBIHVCGQL2M4MUDHLMZHWDA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:6XNWBIHVCGQL2M4MUDHLMZHWDA","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0e4a9be56b632ab88c7b62eb6cc2a31cef45fdc75e3c4874981837915ac734ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-22T13:28:35Z","title_canon_sha256":"193652109d1535047668f1f1fffeba010392e75423f53b17dcc4d88db059fe80"},"schema_version":"1.0","source":{"id":"2605.23622","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.23622","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"arxiv_version","alias_value":"2605.23622v1","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.23622","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_12","alias_value":"6XNWBIHVCGQL","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_16","alias_value":"6XNWBIHVCGQL2M4M","created_at":"2026-05-25T02:02:22Z"},{"alias_kind":"pith_short_8","alias_value":"6XNWBIHV","created_at":"2026-05-25T02:02:22Z"}],"graph_snapshots":[{"event_id":"sha256:e47afade2b766584954f8694d48b25b796bfdabf86d89f654ec4a1b9292ecbb2","target":"graph","created_at":"2026-05-25T02:02:22Z","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/2605.23622/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Understanding how local information propagates through many-body quantum systems is a central problem in nonequilibrium dynamics, with important implications for quantum communication, state transfer, and remote sensing. In this work, we investigate information transfer along a one-dimensional open chain of qudits, focusing on the task of recovering information initially encoded at one end via measurements performed at the opposite end. By restricting the dynamics to brickwork quantum circuits, and considering small $M$-qudit subsystems on the causal ``lightcone'' of the circuit, we obtain sev","authors_text":"Shane Dooley, Shivansh Singh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-22T13:28:35Z","title":"Information transfer along the causal lightcone of a brickwork quantum circuit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.23622","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:b16f306a46d9116682d5dc3e7746aacf14c62d66b26a559412d42adfc3385c34","target":"record","created_at":"2026-05-25T02:02:22Z","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":"0e4a9be56b632ab88c7b62eb6cc2a31cef45fdc75e3c4874981837915ac734ac","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-22T13:28:35Z","title_canon_sha256":"193652109d1535047668f1f1fffeba010392e75423f53b17dcc4d88db059fe80"},"schema_version":"1.0","source":{"id":"2605.23622","kind":"arxiv","version":1}},"canonical_sha256":"f5db60a0f511a0bd338ca0ceb664f61828a3965539f4cee1aee697b828067bea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f5db60a0f511a0bd338ca0ceb664f61828a3965539f4cee1aee697b828067bea","first_computed_at":"2026-05-25T02:02:22.413335Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-25T02:02:22.413335Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Enq1965TYPpX+JupZHjeLB6I+jZ+UNl9iaDLCJQDv5Zg6TEJknfxV8WMxnQzPgmQ3x6dzSNFEMe3fox77PnMBw==","signature_status":"signed_v1","signed_at":"2026-05-25T02:02:22.413876Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.23622","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b16f306a46d9116682d5dc3e7746aacf14c62d66b26a559412d42adfc3385c34","sha256:e47afade2b766584954f8694d48b25b796bfdabf86d89f654ec4a1b9292ecbb2","sha256:6c2381da7038cee2a8d35150dd2b5df6f808391d7179b1db08f18143e3b216b2"],"state_sha256":"0ac2329a54b047c5fdc48b58b856b22c833d1772ecc93aef9778157c4cd6e12e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dkf4sOOm7O2o0SCKWJORoQZP3jz0FJVxUSL6JljvTq298Nulhj+AeS/klAd6kWkmOGdwDwj+Rgyy8A8VF5bVDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:14:40.918089Z","bundle_sha256":"7d39b322424e628162c518c8f1d7c3c952f97108c042e45110753f113c0053fd"}}