{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:N6FHU46UGJ5NTEHP65Q7I5QBMW","short_pith_number":"pith:N6FHU46U","canonical_record":{"source":{"id":"2411.12459","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2024-11-19T12:29:46Z","cross_cats_sorted":[],"title_canon_sha256":"62ec8f956f730e4a52e406f8ee22c07da73ddaae9594706ee3fe1c1cf05fa225","abstract_canon_sha256":"088e81e17fb11cf070c3b677da56e3a06fd321f690d5d757f8f20e9fe2a32f1f"},"schema_version":"1.0"},"canonical_sha256":"6f8a7a73d4327ad990eff761f47601659b61dae9e31ede45c910fad42bb989e4","source":{"kind":"arxiv","id":"2411.12459","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.12459","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"arxiv_version","alias_value":"2411.12459v1","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.12459","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_12","alias_value":"N6FHU46UGJ5N","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_16","alias_value":"N6FHU46UGJ5NTEHP","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_8","alias_value":"N6FHU46U","created_at":"2026-07-05T09:57:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:N6FHU46UGJ5NTEHP65Q7I5QBMW","target":"record","payload":{"canonical_record":{"source":{"id":"2411.12459","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2024-11-19T12:29:46Z","cross_cats_sorted":[],"title_canon_sha256":"62ec8f956f730e4a52e406f8ee22c07da73ddaae9594706ee3fe1c1cf05fa225","abstract_canon_sha256":"088e81e17fb11cf070c3b677da56e3a06fd321f690d5d757f8f20e9fe2a32f1f"},"schema_version":"1.0"},"canonical_sha256":"6f8a7a73d4327ad990eff761f47601659b61dae9e31ede45c910fad42bb989e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:57:48.923447Z","signature_b64":"JaRqbTd0KecztLy3Tw0y8EXlhKCYgl6yFUB4qajZkUQRaDPJ2KrLVfiJEukDK23HX8xNxtrccomavw5kKwFhAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6f8a7a73d4327ad990eff761f47601659b61dae9e31ede45c910fad42bb989e4","last_reissued_at":"2026-07-05T09:57:48.923011Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:57:48.923011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2411.12459","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":"2026-07-05T09:57:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/4ZaCQHfm5gmdcEODqVuBeU5Jl6ksFSUDd/wi2nY6eO2Pi1tM6gRohYA88Q82+xKiC7lCCdnVN8fWR3xwaqICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T05:56:18.722653Z"},"content_sha256":"992dc36f4b8113db0b50fc71414b26f0036d05c21915f159a27d66f3e81615ef","schema_version":"1.0","event_id":"sha256:992dc36f4b8113db0b50fc71414b26f0036d05c21915f159a27d66f3e81615ef"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:N6FHU46UGJ5NTEHP65Q7I5QBMW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two-loop electron self-energy for low nuclear charges","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"C. H. Keitel, V. A. Yerokhin, Z. Harman","submitted_at":"2024-11-19T12:29:46Z","abstract_excerpt":"Calculations of the two-loop electron self-energy for the $1S$ Lamb shift are reported, performed to all orders in the nuclear binding strength parameter $Z\\alpha$ (where $Z$ is the nuclear charge number and $\\alpha$ is the fine structure constant). Our approach allows calculations to be extended to nuclear charges lower than previously possible and improves the numerical accuracy by more than an order of magnitude. Extrapolation of our all-order results to hydrogen yields a result twice as precise as the previously accepted value [E. Tiesinga et al. Rev. Mod. Phys. 93, 025010 (2021)], differi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.12459","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2411.12459/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T09:57:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AZYYhqTp59WSWpqgETJ9rJgm1ULY7nSpLlWvLwz17cBdLE4W737e9ghtfLmLcwS5v+bYEimkCt4icRXP2puqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T05:56:18.723259Z"},"content_sha256":"8ed33d48ff693f289823fc71c295c466f2892397db76be22714afaafbf971f1e","schema_version":"1.0","event_id":"sha256:8ed33d48ff693f289823fc71c295c466f2892397db76be22714afaafbf971f1e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/bundle.json","state_url":"https://pith.science/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/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":"2026-08-23T05:56:18Z","links":{"resolver":"https://pith.science/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW","bundle":"https://pith.science/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/bundle.json","state":"https://pith.science/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N6FHU46UGJ5NTEHP65Q7I5QBMW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:N6FHU46UGJ5NTEHP65Q7I5QBMW","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":"088e81e17fb11cf070c3b677da56e3a06fd321f690d5d757f8f20e9fe2a32f1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2024-11-19T12:29:46Z","title_canon_sha256":"62ec8f956f730e4a52e406f8ee22c07da73ddaae9594706ee3fe1c1cf05fa225"},"schema_version":"1.0","source":{"id":"2411.12459","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2411.12459","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"arxiv_version","alias_value":"2411.12459v1","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2411.12459","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_12","alias_value":"N6FHU46UGJ5N","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_16","alias_value":"N6FHU46UGJ5NTEHP","created_at":"2026-07-05T09:57:48Z"},{"alias_kind":"pith_short_8","alias_value":"N6FHU46U","created_at":"2026-07-05T09:57:48Z"}],"graph_snapshots":[{"event_id":"sha256:8ed33d48ff693f289823fc71c295c466f2892397db76be22714afaafbf971f1e","target":"graph","created_at":"2026-07-05T09:57:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2411.12459/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Calculations of the two-loop electron self-energy for the $1S$ Lamb shift are reported, performed to all orders in the nuclear binding strength parameter $Z\\alpha$ (where $Z$ is the nuclear charge number and $\\alpha$ is the fine structure constant). Our approach allows calculations to be extended to nuclear charges lower than previously possible and improves the numerical accuracy by more than an order of magnitude. Extrapolation of our all-order results to hydrogen yields a result twice as precise as the previously accepted value [E. Tiesinga et al. Rev. Mod. Phys. 93, 025010 (2021)], differi","authors_text":"C. H. Keitel, V. A. Yerokhin, Z. Harman","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2024-11-19T12:29:46Z","title":"Two-loop electron self-energy for low nuclear charges"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.12459","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":"sha256:992dc36f4b8113db0b50fc71414b26f0036d05c21915f159a27d66f3e81615ef","target":"record","created_at":"2026-07-05T09:57:48Z","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":"088e81e17fb11cf070c3b677da56e3a06fd321f690d5d757f8f20e9fe2a32f1f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2024-11-19T12:29:46Z","title_canon_sha256":"62ec8f956f730e4a52e406f8ee22c07da73ddaae9594706ee3fe1c1cf05fa225"},"schema_version":"1.0","source":{"id":"2411.12459","kind":"arxiv","version":1}},"canonical_sha256":"6f8a7a73d4327ad990eff761f47601659b61dae9e31ede45c910fad42bb989e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6f8a7a73d4327ad990eff761f47601659b61dae9e31ede45c910fad42bb989e4","first_computed_at":"2026-07-05T09:57:48.923011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:57:48.923011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JaRqbTd0KecztLy3Tw0y8EXlhKCYgl6yFUB4qajZkUQRaDPJ2KrLVfiJEukDK23HX8xNxtrccomavw5kKwFhAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:57:48.923447Z","signed_message":"canonical_sha256_bytes"},"source_id":"2411.12459","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:992dc36f4b8113db0b50fc71414b26f0036d05c21915f159a27d66f3e81615ef","sha256:8ed33d48ff693f289823fc71c295c466f2892397db76be22714afaafbf971f1e"],"state_sha256":"72544eef15b0d55c8d8161fe446b52a4c60f674bba2ae43abeb462482536ef5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tj23VGNUjOh91waW4XeWPxWebNHjA8j+VuK9BfqttFL1x+5ZTznxULjk8PrXxMpV+oBQ+2lEXwjiFs28XCIEBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T05:56:18.727486Z","bundle_sha256":"49fea11e5b015d90dd4d1ed5b9bf86f6fdd1ebb733b8451300ab4f9d2d14eb56"}}