{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:EKVYTV474YXE2WZPN6BBQTTOAK","short_pith_number":"pith:EKVYTV47","canonical_record":{"source":{"id":"1103.5428","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-28T17:46:42Z","cross_cats_sorted":[],"title_canon_sha256":"619d4e5added406669738ed041c7cc149b0e1188daa5dafa86473782b261bfa5","abstract_canon_sha256":"b4ff92a32f5c8398c26fbd02b62f4a0c96ded880fb853fc39743e021f71aad02"},"schema_version":"1.0"},"canonical_sha256":"22ab89d79fe62e4d5b2f6f82184e6e02b93c87f78321e0f46b73c0f2d44e9a5d","source":{"kind":"arxiv","id":"1103.5428","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.5428","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"arxiv_version","alias_value":"1103.5428v3","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.5428","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"pith_short_12","alias_value":"EKVYTV474YXE","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"EKVYTV474YXE2WZP","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"EKVYTV47","created_at":"2026-05-18T12:26:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:EKVYTV474YXE2WZPN6BBQTTOAK","target":"record","payload":{"canonical_record":{"source":{"id":"1103.5428","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-28T17:46:42Z","cross_cats_sorted":[],"title_canon_sha256":"619d4e5added406669738ed041c7cc149b0e1188daa5dafa86473782b261bfa5","abstract_canon_sha256":"b4ff92a32f5c8398c26fbd02b62f4a0c96ded880fb853fc39743e021f71aad02"},"schema_version":"1.0"},"canonical_sha256":"22ab89d79fe62e4d5b2f6f82184e6e02b93c87f78321e0f46b73c0f2d44e9a5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:16:20.545632Z","signature_b64":"gUj+R/Xk+AmYhqDITgZRRky53Qp+ZUARKRA6caq7CH8BsUYPcHDNj23X9h87Vu8knSLDDQvIYql9flW8zW1MBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"22ab89d79fe62e4d5b2f6f82184e6e02b93c87f78321e0f46b73c0f2d44e9a5d","last_reissued_at":"2026-05-18T04:16:20.544905Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:16:20.544905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1103.5428","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:16:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ojt+7s8cHg6fyR7OOKcNXHw0uiBc/Oh9aJb7JjgKrzzvcpiunSUgcCn0LkOlnNU+R/mEu98qJrJV4ULivUrKCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:13:05.321481Z"},"content_sha256":"c0682817467401bc6c7bba794d5e8f3e859670009ecb6c893bce281737ea4cda","schema_version":"1.0","event_id":"sha256:c0682817467401bc6c7bba794d5e8f3e859670009ecb6c893bce281737ea4cda"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:EKVYTV474YXE2WZPN6BBQTTOAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-Dimensional Arrays of RF Ion Traps with Addressable Interactions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Michael Brownnutt, Muir Kumph, Rainer Blatt","submitted_at":"2011-03-28T17:46:42Z","abstract_excerpt":"We describe the advantages of 2-dimensional, addressable arrays of spherical Paul traps. They would provide for the ability to address and tailor the interaction strengths of trapped objects in 2D and could establish a valuable new tool for quantum information processing. Simulations of trapping ions are compared to first tests using printed circuit board trap arrays loaded with dust particles. Pair-wise interactions in the array are addressed by means of an adjustable radio-frequency (RF) electrode shared between trapping sites. By attenuating this RF electrode potential, neighboring pairs of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.5428","kind":"arxiv","version":3},"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":"2026-05-18T04:16:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UWXvVluCG0D46ebRzqAgI/WBe5D6sHCb3FZ/y6KeDMysA0LzJJJ4Mu2CVvT8uTXXsb1nQPXKomrrfjYH6WXZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T16:13:05.322250Z"},"content_sha256":"2e13e8fbbfad34d0cd4a0050be71d5eaf2a9fdf7b06f1f02524cb20baf3cc5fb","schema_version":"1.0","event_id":"sha256:2e13e8fbbfad34d0cd4a0050be71d5eaf2a9fdf7b06f1f02524cb20baf3cc5fb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EKVYTV474YXE2WZPN6BBQTTOAK/bundle.json","state_url":"https://pith.science/pith/EKVYTV474YXE2WZPN6BBQTTOAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EKVYTV474YXE2WZPN6BBQTTOAK/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":"2026-06-11T16:13:05Z","links":{"resolver":"https://pith.science/pith/EKVYTV474YXE2WZPN6BBQTTOAK","bundle":"https://pith.science/pith/EKVYTV474YXE2WZPN6BBQTTOAK/bundle.json","state":"https://pith.science/pith/EKVYTV474YXE2WZPN6BBQTTOAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EKVYTV474YXE2WZPN6BBQTTOAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:EKVYTV474YXE2WZPN6BBQTTOAK","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":"b4ff92a32f5c8398c26fbd02b62f4a0c96ded880fb853fc39743e021f71aad02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-28T17:46:42Z","title_canon_sha256":"619d4e5added406669738ed041c7cc149b0e1188daa5dafa86473782b261bfa5"},"schema_version":"1.0","source":{"id":"1103.5428","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.5428","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"arxiv_version","alias_value":"1103.5428v3","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.5428","created_at":"2026-05-18T04:16:20Z"},{"alias_kind":"pith_short_12","alias_value":"EKVYTV474YXE","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"EKVYTV474YXE2WZP","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"EKVYTV47","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:2e13e8fbbfad34d0cd4a0050be71d5eaf2a9fdf7b06f1f02524cb20baf3cc5fb","target":"graph","created_at":"2026-05-18T04:16:20Z","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 describe the advantages of 2-dimensional, addressable arrays of spherical Paul traps. They would provide for the ability to address and tailor the interaction strengths of trapped objects in 2D and could establish a valuable new tool for quantum information processing. Simulations of trapping ions are compared to first tests using printed circuit board trap arrays loaded with dust particles. Pair-wise interactions in the array are addressed by means of an adjustable radio-frequency (RF) electrode shared between trapping sites. By attenuating this RF electrode potential, neighboring pairs of","authors_text":"Michael Brownnutt, Muir Kumph, Rainer Blatt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-28T17:46:42Z","title":"Two-Dimensional Arrays of RF Ion Traps with Addressable Interactions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.5428","kind":"arxiv","version":3},"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:c0682817467401bc6c7bba794d5e8f3e859670009ecb6c893bce281737ea4cda","target":"record","created_at":"2026-05-18T04:16:20Z","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":"b4ff92a32f5c8398c26fbd02b62f4a0c96ded880fb853fc39743e021f71aad02","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-03-28T17:46:42Z","title_canon_sha256":"619d4e5added406669738ed041c7cc149b0e1188daa5dafa86473782b261bfa5"},"schema_version":"1.0","source":{"id":"1103.5428","kind":"arxiv","version":3}},"canonical_sha256":"22ab89d79fe62e4d5b2f6f82184e6e02b93c87f78321e0f46b73c0f2d44e9a5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"22ab89d79fe62e4d5b2f6f82184e6e02b93c87f78321e0f46b73c0f2d44e9a5d","first_computed_at":"2026-05-18T04:16:20.544905Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:20.544905Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gUj+R/Xk+AmYhqDITgZRRky53Qp+ZUARKRA6caq7CH8BsUYPcHDNj23X9h87Vu8knSLDDQvIYql9flW8zW1MBg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:20.545632Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.5428","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0682817467401bc6c7bba794d5e8f3e859670009ecb6c893bce281737ea4cda","sha256:2e13e8fbbfad34d0cd4a0050be71d5eaf2a9fdf7b06f1f02524cb20baf3cc5fb"],"state_sha256":"540128c0273a9d8d55e041f00f4415ba66d622f94a3379e4aca7e8518987a44b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W6FEUmBnNvIuZCnRCZFmb5hegHoqnC7/GvwnqkrBWgovHMk61k6o/Rc98wa2VcIrVZrz7P/RTi/naMRS9RhBAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T16:13:05.326723Z","bundle_sha256":"d2c12f56b35523c151bf11d587b8f3078d0ba45b0111103578a3d9fe5d7e4489"}}