{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:R2YKSK2XBP37R2EJLNMJMGLXL4","short_pith_number":"pith:R2YKSK2X","canonical_record":{"source":{"id":"1401.6454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-01-24T14:05:56Z","cross_cats_sorted":[],"title_canon_sha256":"6c916b2a71567fc7380de3482594b831bb4cd96575907f4fe85fae3437f35fe8","abstract_canon_sha256":"885fd1e08db85da4e864e04e2f15a12266777d8e22109a55c11e039493053310"},"schema_version":"1.0"},"canonical_sha256":"8eb0a92b570bf7f8e8895b589619775f0416c2eb31d7a76a656411ea369e5858","source":{"kind":"arxiv","id":"1401.6454","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.6454","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"1401.6454v1","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.6454","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"R2YKSK2XBP37","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"R2YKSK2XBP37R2EJ","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"R2YKSK2X","created_at":"2026-05-18T12:28:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:R2YKSK2XBP37R2EJLNMJMGLXL4","target":"record","payload":{"canonical_record":{"source":{"id":"1401.6454","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-01-24T14:05:56Z","cross_cats_sorted":[],"title_canon_sha256":"6c916b2a71567fc7380de3482594b831bb4cd96575907f4fe85fae3437f35fe8","abstract_canon_sha256":"885fd1e08db85da4e864e04e2f15a12266777d8e22109a55c11e039493053310"},"schema_version":"1.0"},"canonical_sha256":"8eb0a92b570bf7f8e8895b589619775f0416c2eb31d7a76a656411ea369e5858","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:03.528951Z","signature_b64":"dqWK4myOetpAXrEhWeiZFY+5Wj7SfuceG3vf3Vwa0EDAzWXgR3sNdJ0jCGLYVCHt7NvfR71NwLegUjWpYogNAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8eb0a92b570bf7f8e8895b589619775f0416c2eb31d7a76a656411ea369e5858","last_reissued_at":"2026-05-18T01:22:03.528447Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:03.528447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.6454","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":"2026-05-18T01:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E2lM5M2rS2xJekJ+G/Gf+IoHO8sNRxyHuVzspcTg7djwGBtK74rwvPwgHJvr70zE0VaPs9HJbB8OJYN/1LFsDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:09:56.074896Z"},"content_sha256":"72ba7195f02110c59eca82ab4f80135b344d09126bc8dd68e44774a46a041580","schema_version":"1.0","event_id":"sha256:72ba7195f02110c59eca82ab4f80135b344d09126bc8dd68e44774a46a041580"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:R2YKSK2XBP37R2EJLNMJMGLXL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A fast pneumatic sample-shuttle with attenuated shocks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Leonardo Stiaccini, Valerio Biancalana, Yordanka Dancheva","submitted_at":"2014-01-24T14:05:56Z","abstract_excerpt":"We describe a home-built pneumatic shuttle suitable for the fast displacement of samples in the vicinity of a highly sensitive atomic magnetometer. The samples are magnetized at 1 T using a Halbach assembly of magnets. The device enables the remote detection of free induction decay in ultra-low-field and zero-field NMR experiments, in relaxometric measurements and in other applications involving the displacement of magnetized samples within time intervals as short as a few tens of milliseconds. Other possible applications of fast sample shuttling exist in radiological studies, where samples ha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.6454","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":""},"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":"2026-05-18T01:22:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q249W06LmFfzgTGZLhf7brXb/U1AwNFUJ6soEsPYNAVnL0NhcwR4GIpP7Jl7GeZyt2ZKDpoO3ylNmpvZjfxTAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:09:56.075411Z"},"content_sha256":"9190bc84e66d1855a661d10f9fa6c0cf65033ef78b4080a03bb49b0f6c0d8fd2","schema_version":"1.0","event_id":"sha256:9190bc84e66d1855a661d10f9fa6c0cf65033ef78b4080a03bb49b0f6c0d8fd2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/bundle.json","state_url":"https://pith.science/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/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":"2026-05-26T22:09:56Z","links":{"resolver":"https://pith.science/pith/R2YKSK2XBP37R2EJLNMJMGLXL4","bundle":"https://pith.science/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/bundle.json","state":"https://pith.science/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R2YKSK2XBP37R2EJLNMJMGLXL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:R2YKSK2XBP37R2EJLNMJMGLXL4","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":"885fd1e08db85da4e864e04e2f15a12266777d8e22109a55c11e039493053310","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-01-24T14:05:56Z","title_canon_sha256":"6c916b2a71567fc7380de3482594b831bb4cd96575907f4fe85fae3437f35fe8"},"schema_version":"1.0","source":{"id":"1401.6454","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.6454","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"arxiv_version","alias_value":"1401.6454v1","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.6454","created_at":"2026-05-18T01:22:03Z"},{"alias_kind":"pith_short_12","alias_value":"R2YKSK2XBP37","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_16","alias_value":"R2YKSK2XBP37R2EJ","created_at":"2026-05-18T12:28:46Z"},{"alias_kind":"pith_short_8","alias_value":"R2YKSK2X","created_at":"2026-05-18T12:28:46Z"}],"graph_snapshots":[{"event_id":"sha256:9190bc84e66d1855a661d10f9fa6c0cf65033ef78b4080a03bb49b0f6c0d8fd2","target":"graph","created_at":"2026-05-18T01:22:03Z","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 a home-built pneumatic shuttle suitable for the fast displacement of samples in the vicinity of a highly sensitive atomic magnetometer. The samples are magnetized at 1 T using a Halbach assembly of magnets. The device enables the remote detection of free induction decay in ultra-low-field and zero-field NMR experiments, in relaxometric measurements and in other applications involving the displacement of magnetized samples within time intervals as short as a few tens of milliseconds. Other possible applications of fast sample shuttling exist in radiological studies, where samples ha","authors_text":"Leonardo Stiaccini, Valerio Biancalana, Yordanka Dancheva","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-01-24T14:05:56Z","title":"A fast pneumatic sample-shuttle with attenuated shocks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.6454","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":"sha256:72ba7195f02110c59eca82ab4f80135b344d09126bc8dd68e44774a46a041580","target":"record","created_at":"2026-05-18T01:22:03Z","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":"885fd1e08db85da4e864e04e2f15a12266777d8e22109a55c11e039493053310","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2014-01-24T14:05:56Z","title_canon_sha256":"6c916b2a71567fc7380de3482594b831bb4cd96575907f4fe85fae3437f35fe8"},"schema_version":"1.0","source":{"id":"1401.6454","kind":"arxiv","version":1}},"canonical_sha256":"8eb0a92b570bf7f8e8895b589619775f0416c2eb31d7a76a656411ea369e5858","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8eb0a92b570bf7f8e8895b589619775f0416c2eb31d7a76a656411ea369e5858","first_computed_at":"2026-05-18T01:22:03.528447Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:03.528447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dqWK4myOetpAXrEhWeiZFY+5Wj7SfuceG3vf3Vwa0EDAzWXgR3sNdJ0jCGLYVCHt7NvfR71NwLegUjWpYogNAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:03.528951Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.6454","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72ba7195f02110c59eca82ab4f80135b344d09126bc8dd68e44774a46a041580","sha256:9190bc84e66d1855a661d10f9fa6c0cf65033ef78b4080a03bb49b0f6c0d8fd2"],"state_sha256":"a2ce6668996a5411fa8e8832cc81e48d11da0ce387b652dc5bc6d11e521d312b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rbVjg3tj7aGo7OfqD7Edz8U62AiHyIo/t0JxDyOBbaVSZJiM+vVwspzClVBQikQQekC8GhicK9ynVccTgruHCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T22:09:56.078467Z","bundle_sha256":"db5bc053150e9df5ba9ed95e5fb792399c97df9e79c2dbddb7bd4e9eb691e2db"}}