{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:LFAJIG3T4ELILAJE3ZJA574ERK","short_pith_number":"pith:LFAJIG3T","canonical_record":{"source":{"id":"1606.04008","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-13T16:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"7dbd0313203a753eef87325314bbd882ca556d444cea125002f9a16d84b5ffa7","abstract_canon_sha256":"f93a1a94ffdc132da736792d98849c1c3f678deea189333c6373ee8ed88be99c"},"schema_version":"1.0"},"canonical_sha256":"5940941b73e116858124de520eff848a9e2ba358605503c01607cb45cfd10b30","source":{"kind":"arxiv","id":"1606.04008","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04008","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04008v2","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04008","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"LFAJIG3T4ELI","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LFAJIG3T4ELILAJE","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LFAJIG3T","created_at":"2026-05-18T12:30:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:LFAJIG3T4ELILAJE3ZJA574ERK","target":"record","payload":{"canonical_record":{"source":{"id":"1606.04008","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-13T16:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"7dbd0313203a753eef87325314bbd882ca556d444cea125002f9a16d84b5ffa7","abstract_canon_sha256":"f93a1a94ffdc132da736792d98849c1c3f678deea189333c6373ee8ed88be99c"},"schema_version":"1.0"},"canonical_sha256":"5940941b73e116858124de520eff848a9e2ba358605503c01607cb45cfd10b30","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:18.638910Z","signature_b64":"2wy6dqop6zeR5oYaodtUV8en07IkhCyS6FugKUXZVny3FEUctrYWLvH0ehZkE8TNg3D/zCez6WyQj1FIamzNBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5940941b73e116858124de520eff848a9e2ba358605503c01607cb45cfd10b30","last_reissued_at":"2026-05-18T01:04:18.638441Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:18.638441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.04008","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":"2026-05-18T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QOX6e/mnodS46oYjTPOpJWtjoy5rbKc01RytVGbEplQfdyr43SPvYraomRrYiXkSAFGB0+JNoR50y8v6J4CuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T07:58:32.726409Z"},"content_sha256":"ef6f01461b509ca2920fe90ecfd0e190f3d42844ce98cf83ab2a7344dc9a91fa","schema_version":"1.0","event_id":"sha256:ef6f01461b509ca2920fe90ecfd0e190f3d42844ce98cf83ab2a7344dc9a91fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:LFAJIG3T4ELILAJE3ZJA574ERK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Space- and Time-resolved Resistive Measurement of Liquid Metal Wall Thickness","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"F.A. Volpe, S.M.H. Mirhoseini","submitted_at":"2016-06-13T16:00:00Z","abstract_excerpt":"In a fusion reactor internally coated with liquid metal, it will be important to diagnose the thickness of the liquid at various locations in the vessel, as a function of time, and possibly respond to counteract undesired bulging or depletion. The electrical conductance between electrodes immersed in the liquid metal can be used as a simple proxy for the local thickness. Here a matrix of electrodes is shown to provide spatially resolved measurements of liquid metal thickness in the absence of plasma. First a theory is developed for mxn electrodes, and then it is experimentally demonstrated for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04008","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":"2026-05-18T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wy/0ed0uaxwpXg9osLArbUE+J1n61YYGFJJcPb/lwYNnQ4z0JEltsC/Zpnj4ogUCmxBgANAVPHMJXVYK5jxtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T07:58:32.726897Z"},"content_sha256":"41d7125f057ffe9679a1be2f039a9a48ccc0376dfca3a3e103ac7b7a52bb027d","schema_version":"1.0","event_id":"sha256:41d7125f057ffe9679a1be2f039a9a48ccc0376dfca3a3e103ac7b7a52bb027d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LFAJIG3T4ELILAJE3ZJA574ERK/bundle.json","state_url":"https://pith.science/pith/LFAJIG3T4ELILAJE3ZJA574ERK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LFAJIG3T4ELILAJE3ZJA574ERK/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":"2026-06-08T07:58:32Z","links":{"resolver":"https://pith.science/pith/LFAJIG3T4ELILAJE3ZJA574ERK","bundle":"https://pith.science/pith/LFAJIG3T4ELILAJE3ZJA574ERK/bundle.json","state":"https://pith.science/pith/LFAJIG3T4ELILAJE3ZJA574ERK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LFAJIG3T4ELILAJE3ZJA574ERK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:LFAJIG3T4ELILAJE3ZJA574ERK","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":"f93a1a94ffdc132da736792d98849c1c3f678deea189333c6373ee8ed88be99c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-13T16:00:00Z","title_canon_sha256":"7dbd0313203a753eef87325314bbd882ca556d444cea125002f9a16d84b5ffa7"},"schema_version":"1.0","source":{"id":"1606.04008","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04008","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04008v2","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04008","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"LFAJIG3T4ELI","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_16","alias_value":"LFAJIG3T4ELILAJE","created_at":"2026-05-18T12:30:29Z"},{"alias_kind":"pith_short_8","alias_value":"LFAJIG3T","created_at":"2026-05-18T12:30:29Z"}],"graph_snapshots":[{"event_id":"sha256:41d7125f057ffe9679a1be2f039a9a48ccc0376dfca3a3e103ac7b7a52bb027d","target":"graph","created_at":"2026-05-18T01:04:18Z","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":"In a fusion reactor internally coated with liquid metal, it will be important to diagnose the thickness of the liquid at various locations in the vessel, as a function of time, and possibly respond to counteract undesired bulging or depletion. The electrical conductance between electrodes immersed in the liquid metal can be used as a simple proxy for the local thickness. Here a matrix of electrodes is shown to provide spatially resolved measurements of liquid metal thickness in the absence of plasma. First a theory is developed for mxn electrodes, and then it is experimentally demonstrated for","authors_text":"F.A. Volpe, S.M.H. Mirhoseini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-13T16:00:00Z","title":"Space- and Time-resolved Resistive Measurement of Liquid Metal Wall Thickness"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04008","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:ef6f01461b509ca2920fe90ecfd0e190f3d42844ce98cf83ab2a7344dc9a91fa","target":"record","created_at":"2026-05-18T01:04:18Z","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":"f93a1a94ffdc132da736792d98849c1c3f678deea189333c6373ee8ed88be99c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-13T16:00:00Z","title_canon_sha256":"7dbd0313203a753eef87325314bbd882ca556d444cea125002f9a16d84b5ffa7"},"schema_version":"1.0","source":{"id":"1606.04008","kind":"arxiv","version":2}},"canonical_sha256":"5940941b73e116858124de520eff848a9e2ba358605503c01607cb45cfd10b30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5940941b73e116858124de520eff848a9e2ba358605503c01607cb45cfd10b30","first_computed_at":"2026-05-18T01:04:18.638441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:18.638441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2wy6dqop6zeR5oYaodtUV8en07IkhCyS6FugKUXZVny3FEUctrYWLvH0ehZkE8TNg3D/zCez6WyQj1FIamzNBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:18.638910Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.04008","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ef6f01461b509ca2920fe90ecfd0e190f3d42844ce98cf83ab2a7344dc9a91fa","sha256:41d7125f057ffe9679a1be2f039a9a48ccc0376dfca3a3e103ac7b7a52bb027d"],"state_sha256":"380ec41698cded523909edc72ab0708ea23446a71c45ac4a6f7ce690515b0229"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lyMJLXL03NFaZol01ripYgfdJO6gQshrRMDMLyIOq3bqanJ/HALrSM8itwd0mO+1X3PWMpPA6ZJjDFCjgaFMBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T07:58:32.730912Z","bundle_sha256":"087049df8a972bcc1ef23e0adc455c472e496d12b1e6ae276974c49e9f3dd605"}}