{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:H3ZLBYJUSSJ7ZY45GJVSGQZKDD","short_pith_number":"pith:H3ZLBYJU","canonical_record":{"source":{"id":"1612.05097","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-15T14:59:04Z","cross_cats_sorted":[],"title_canon_sha256":"259c35d59f1ea43e5b0f7b8eb7d74fb4788f97ac2de34cbc5fe7b890c386702c","abstract_canon_sha256":"d369687e3459722adfa0dc00df3b6542a0307a72fdf63887cc5c2855ce9d7a75"},"schema_version":"1.0"},"canonical_sha256":"3ef2b0e1349493fce39d326b23432a18c61d2076147138f532f1daadb514fd98","source":{"kind":"arxiv","id":"1612.05097","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05097","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05097v2","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05097","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"pith_short_12","alias_value":"H3ZLBYJUSSJ7","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"H3ZLBYJUSSJ7ZY45","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"H3ZLBYJU","created_at":"2026-05-18T12:30:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:H3ZLBYJUSSJ7ZY45GJVSGQZKDD","target":"record","payload":{"canonical_record":{"source":{"id":"1612.05097","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-15T14:59:04Z","cross_cats_sorted":[],"title_canon_sha256":"259c35d59f1ea43e5b0f7b8eb7d74fb4788f97ac2de34cbc5fe7b890c386702c","abstract_canon_sha256":"d369687e3459722adfa0dc00df3b6542a0307a72fdf63887cc5c2855ce9d7a75"},"schema_version":"1.0"},"canonical_sha256":"3ef2b0e1349493fce39d326b23432a18c61d2076147138f532f1daadb514fd98","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:18.114014Z","signature_b64":"I6Qpih1SwTmgBrvkeWoIClcgM9sa0SfSUK0MycKYV9yyJJ67jNZWMX/EJ4U8gdOaec7t4nUmdW9PuXi0k05ZDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ef2b0e1349493fce39d326b23432a18c61d2076147138f532f1daadb514fd98","last_reissued_at":"2026-05-18T00:43:18.113269Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:18.113269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.05097","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":"2026-05-18T00:43:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C0/HDUjK5kTYYjJnJy6JvmY060s2pE6BskUuIVlEna1vYa28o+ZTKkKjZXpdXzrwBlxGmOT4cR0Ffm7egNn8Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:27:32.687672Z"},"content_sha256":"55c37c0bae72a690d8ea60b439eafc5b65df090c41dc0b25b6033696791ce889","schema_version":"1.0","event_id":"sha256:55c37c0bae72a690d8ea60b439eafc5b65df090c41dc0b25b6033696791ce889"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:H3ZLBYJUSSJ7ZY45GJVSGQZKDD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust Quantum Entanglement Generation and Generation-plus-Storage Protocols with Spin Chains","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Irene D'Amico, Marta P. Estarellas, Timothy P. Spiller","submitted_at":"2016-12-15T14:59:04Z","abstract_excerpt":"Reliable quantum communication/processing links between modules are a necessary building block for various quantum processing architectures. Here we consider a spin chain system with alternating strength couplings and containing three defects, that impose three domain walls between topologically distinct regions of the chain. We show that -- in addition to its useful, high fidelity, quantum state transfer properties -- an entangling protocol can be implemented in this system, with optional localisation and storage of the entangled states. We demonstrate both numerically and analytically that, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05097","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":"2026-05-18T00:43:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JLFn+jzR4cTvx+KrnPba8NobNsLgAnJ6KAftkW5W9MKTxKhekj1/2dbb2IdQEL4CJXo1TfuQn/JbauYNsqDKCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T09:27:32.688044Z"},"content_sha256":"9d10e0db348e40e389611ebaf3126b6d41b8071db8580e47bc46ceb786418d5d","schema_version":"1.0","event_id":"sha256:9d10e0db348e40e389611ebaf3126b6d41b8071db8580e47bc46ceb786418d5d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/bundle.json","state_url":"https://pith.science/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/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":"2026-06-03T09:27:32Z","links":{"resolver":"https://pith.science/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD","bundle":"https://pith.science/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/bundle.json","state":"https://pith.science/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H3ZLBYJUSSJ7ZY45GJVSGQZKDD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:H3ZLBYJUSSJ7ZY45GJVSGQZKDD","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":"d369687e3459722adfa0dc00df3b6542a0307a72fdf63887cc5c2855ce9d7a75","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-15T14:59:04Z","title_canon_sha256":"259c35d59f1ea43e5b0f7b8eb7d74fb4788f97ac2de34cbc5fe7b890c386702c"},"schema_version":"1.0","source":{"id":"1612.05097","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.05097","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"arxiv_version","alias_value":"1612.05097v2","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.05097","created_at":"2026-05-18T00:43:18Z"},{"alias_kind":"pith_short_12","alias_value":"H3ZLBYJUSSJ7","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_16","alias_value":"H3ZLBYJUSSJ7ZY45","created_at":"2026-05-18T12:30:19Z"},{"alias_kind":"pith_short_8","alias_value":"H3ZLBYJU","created_at":"2026-05-18T12:30:19Z"}],"graph_snapshots":[{"event_id":"sha256:9d10e0db348e40e389611ebaf3126b6d41b8071db8580e47bc46ceb786418d5d","target":"graph","created_at":"2026-05-18T00:43:18Z","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":"Reliable quantum communication/processing links between modules are a necessary building block for various quantum processing architectures. Here we consider a spin chain system with alternating strength couplings and containing three defects, that impose three domain walls between topologically distinct regions of the chain. We show that -- in addition to its useful, high fidelity, quantum state transfer properties -- an entangling protocol can be implemented in this system, with optional localisation and storage of the entangled states. We demonstrate both numerically and analytically that, ","authors_text":"Irene D'Amico, Marta P. Estarellas, Timothy P. Spiller","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-15T14:59:04Z","title":"Robust Quantum Entanglement Generation and Generation-plus-Storage Protocols with Spin Chains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.05097","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":"sha256:55c37c0bae72a690d8ea60b439eafc5b65df090c41dc0b25b6033696791ce889","target":"record","created_at":"2026-05-18T00:43:18Z","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":"d369687e3459722adfa0dc00df3b6542a0307a72fdf63887cc5c2855ce9d7a75","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-12-15T14:59:04Z","title_canon_sha256":"259c35d59f1ea43e5b0f7b8eb7d74fb4788f97ac2de34cbc5fe7b890c386702c"},"schema_version":"1.0","source":{"id":"1612.05097","kind":"arxiv","version":2}},"canonical_sha256":"3ef2b0e1349493fce39d326b23432a18c61d2076147138f532f1daadb514fd98","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ef2b0e1349493fce39d326b23432a18c61d2076147138f532f1daadb514fd98","first_computed_at":"2026-05-18T00:43:18.113269Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:18.113269Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I6Qpih1SwTmgBrvkeWoIClcgM9sa0SfSUK0MycKYV9yyJJ67jNZWMX/EJ4U8gdOaec7t4nUmdW9PuXi0k05ZDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:18.114014Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.05097","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:55c37c0bae72a690d8ea60b439eafc5b65df090c41dc0b25b6033696791ce889","sha256:9d10e0db348e40e389611ebaf3126b6d41b8071db8580e47bc46ceb786418d5d"],"state_sha256":"113312be045f558242383ce285307594fac1c23765b403b940c56ec40cf5da46"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yBtWtXGaPI/UFQ5ektRSYqLH9/fu+SM8srSITLX6tsS29PMr/ViLqV+Rd26M7Yn3SlyrErlrAgsKNJovPpgfAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T09:27:32.689843Z","bundle_sha256":"7af452abb18eb4512ee1773b0221b694bbb78f0286461e3c5e339f784fa63985"}}