{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:O7KY7WVUAV76UW2YWCUAU2Q56S","short_pith_number":"pith:O7KY7WVU","schema_version":"1.0","canonical_sha256":"77d58fdab4057fea5b58b0a80a6a1df4bc826f4eb149108a43e9b14ebbcb1225","source":{"kind":"arxiv","id":"1610.02910","version":3},"attestation_state":"computed","paper":{"title":"Determining the value of the fine-structure constant from a current balance: getting acquainted with some upcoming changes to the SI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.class-ph","authors_text":"France), Richard S. Davis (BIPM","submitted_at":"2016-10-10T13:37:43Z","abstract_excerpt":"The revised International System of Units (SI), expected to be approved late in 2018, has implications for physics pedagogy; the ampere definition which dates from 1948 will be replaced by a definition that fixes the numerical value of the elementary charge, e, in coulombs. The kilogram definition which dates from 1889 will be replaced by a definition that fixes the numerical value of the Planck constant, h, in joule seconds. Existing SI equations are completely unaffected. However, there will be a largely-negligible, but nevertheless necessary, change to published numerical factors relating S"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1610.02910","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2016-10-10T13:37:43Z","cross_cats_sorted":[],"title_canon_sha256":"d507aa76f49bb4936198251f175c8295c2edc19e221d6dc9a096c01331de5968","abstract_canon_sha256":"b1cf41f55785b4b134015b5da5225649b7e3668a3fe5b4cb785638287b44c3d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:02.457739Z","signature_b64":"kqbHbWJPV49Xfkxza+kdctMWwGXhp3kerXXPU5kSN2rjPAaEUjw6ptONNxDzdSoSUoxSAJfSJ+jgkD9c4CctDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77d58fdab4057fea5b58b0a80a6a1df4bc826f4eb149108a43e9b14ebbcb1225","last_reissued_at":"2026-05-18T00:46:02.457111Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:02.457111Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Determining the value of the fine-structure constant from a current balance: getting acquainted with some upcoming changes to the SI","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.class-ph","authors_text":"France), Richard S. Davis (BIPM","submitted_at":"2016-10-10T13:37:43Z","abstract_excerpt":"The revised International System of Units (SI), expected to be approved late in 2018, has implications for physics pedagogy; the ampere definition which dates from 1948 will be replaced by a definition that fixes the numerical value of the elementary charge, e, in coulombs. The kilogram definition which dates from 1889 will be replaced by a definition that fixes the numerical value of the Planck constant, h, in joule seconds. Existing SI equations are completely unaffected. However, there will be a largely-negligible, but nevertheless necessary, change to published numerical factors relating S"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02910","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1610.02910","created_at":"2026-05-18T00:46:02.457205+00:00"},{"alias_kind":"arxiv_version","alias_value":"1610.02910v3","created_at":"2026-05-18T00:46:02.457205+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02910","created_at":"2026-05-18T00:46:02.457205+00:00"},{"alias_kind":"pith_short_12","alias_value":"O7KY7WVUAV76","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_16","alias_value":"O7KY7WVUAV76UW2Y","created_at":"2026-05-18T12:30:36.002864+00:00"},{"alias_kind":"pith_short_8","alias_value":"O7KY7WVU","created_at":"2026-05-18T12:30:36.002864+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S","json":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S.json","graph_json":"https://pith.science/api/pith-number/O7KY7WVUAV76UW2YWCUAU2Q56S/graph.json","events_json":"https://pith.science/api/pith-number/O7KY7WVUAV76UW2YWCUAU2Q56S/events.json","paper":"https://pith.science/paper/O7KY7WVU"},"agent_actions":{"view_html":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S","download_json":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S.json","view_paper":"https://pith.science/paper/O7KY7WVU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1610.02910&json=true","fetch_graph":"https://pith.science/api/pith-number/O7KY7WVUAV76UW2YWCUAU2Q56S/graph.json","fetch_events":"https://pith.science/api/pith-number/O7KY7WVUAV76UW2YWCUAU2Q56S/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S/action/storage_attestation","attest_author":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S/action/author_attestation","sign_citation":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S/action/citation_signature","submit_replication":"https://pith.science/pith/O7KY7WVUAV76UW2YWCUAU2Q56S/action/replication_record"}},"created_at":"2026-05-18T00:46:02.457205+00:00","updated_at":"2026-05-18T00:46:02.457205+00:00"}