{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:JTKBYQE3QXLQBCMKJN2F4Z3DY7","short_pith_number":"pith:JTKBYQE3","canonical_record":{"source":{"id":"1706.03255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T17:06:26Z","cross_cats_sorted":[],"title_canon_sha256":"52416b978c9f63a4cac821cca413b7d30b92b7218cb9a8092e860ad678c479fd","abstract_canon_sha256":"e51ee8c719c6e4abe2342abc2c55cce2d2473ff03a52172d6288b7bebd7c067f"},"schema_version":"1.0"},"canonical_sha256":"4cd41c409b85d700898a4b745e6763c7fb609ada6e4cb4daa6ebfafe51c8e6ae","source":{"kind":"arxiv","id":"1706.03255","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03255","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03255v1","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03255","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"pith_short_12","alias_value":"JTKBYQE3QXLQ","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JTKBYQE3QXLQBCMK","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JTKBYQE3","created_at":"2026-05-18T12:31:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:JTKBYQE3QXLQBCMKJN2F4Z3DY7","target":"record","payload":{"canonical_record":{"source":{"id":"1706.03255","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T17:06:26Z","cross_cats_sorted":[],"title_canon_sha256":"52416b978c9f63a4cac821cca413b7d30b92b7218cb9a8092e860ad678c479fd","abstract_canon_sha256":"e51ee8c719c6e4abe2342abc2c55cce2d2473ff03a52172d6288b7bebd7c067f"},"schema_version":"1.0"},"canonical_sha256":"4cd41c409b85d700898a4b745e6763c7fb609ada6e4cb4daa6ebfafe51c8e6ae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:32:59.582392Z","signature_b64":"6HityMCPrr84FP/RdHUd2PBYKbc2e5wRJ+mFqbPKsazS7JWfsghyeEg/bpIvU7SH+7FyxDGPAMo07u+EjlCuBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4cd41c409b85d700898a4b745e6763c7fb609ada6e4cb4daa6ebfafe51c8e6ae","last_reissued_at":"2026-05-18T00:32:59.581693Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:32:59.581693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.03255","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":"2026-05-18T00:32:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WYBB2Qdoqa7rc4gxjwpPwJfiakORaCxlNLU6p4CjdSjNpDTV6n4AXx5qQ759SPokR7Yx7PXrhl+rs6ehlmBICg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:17:29.155121Z"},"content_sha256":"51fa636de0196b8366b4b8ae32ee2d8efa0941e686502bf98b0f1fe8c20d13a4","schema_version":"1.0","event_id":"sha256:51fa636de0196b8366b4b8ae32ee2d8efa0941e686502bf98b0f1fe8c20d13a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:JTKBYQE3QXLQBCMKJN2F4Z3DY7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First-principles study on various point defects formed by hydrogen and helium atoms in tungsten","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Qiang Zhao, Xiao-Ping Ouyang, Yang Li, Zheng Zhang","submitted_at":"2017-06-10T17:06:26Z","abstract_excerpt":"The different point defects formed by two hydrogen atoms or two helium atoms in tungsten were investigated through first-principles calculation. The energetically favorable site for a hydrogen atom is tetrahedral interstitial site while substitutional site is the most preferred site for a helium atom. The formation energies of two hydrogen or helium atoms are determined by their positions, and there are not a multiple of a single atom's. After relaxation, two adjacent hydrogen atoms are away from each other while helium atoms are close to. The reasons for the interaction between two hydrogen o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03255","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":"2026-05-18T00:32:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LWeb5HUq+f+Q+mtilpawXH70VYeaJXqJ2uRgFIiFL8s0fVBTc0pWipJyH7W76czEchjWNjOszIL9KF8C7LbJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T10:17:29.155497Z"},"content_sha256":"061348202ab687694173dc2f3bc8b4e219f8aa46f8a7247b164c3832530fdc21","schema_version":"1.0","event_id":"sha256:061348202ab687694173dc2f3bc8b4e219f8aa46f8a7247b164c3832530fdc21"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/bundle.json","state_url":"https://pith.science/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/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":"2026-06-03T10:17:29Z","links":{"resolver":"https://pith.science/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7","bundle":"https://pith.science/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/bundle.json","state":"https://pith.science/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JTKBYQE3QXLQBCMKJN2F4Z3DY7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:JTKBYQE3QXLQBCMKJN2F4Z3DY7","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":"e51ee8c719c6e4abe2342abc2c55cce2d2473ff03a52172d6288b7bebd7c067f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T17:06:26Z","title_canon_sha256":"52416b978c9f63a4cac821cca413b7d30b92b7218cb9a8092e860ad678c479fd"},"schema_version":"1.0","source":{"id":"1706.03255","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03255","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03255v1","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03255","created_at":"2026-05-18T00:32:59Z"},{"alias_kind":"pith_short_12","alias_value":"JTKBYQE3QXLQ","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_16","alias_value":"JTKBYQE3QXLQBCMK","created_at":"2026-05-18T12:31:24Z"},{"alias_kind":"pith_short_8","alias_value":"JTKBYQE3","created_at":"2026-05-18T12:31:24Z"}],"graph_snapshots":[{"event_id":"sha256:061348202ab687694173dc2f3bc8b4e219f8aa46f8a7247b164c3832530fdc21","target":"graph","created_at":"2026-05-18T00:32:59Z","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":"The different point defects formed by two hydrogen atoms or two helium atoms in tungsten were investigated through first-principles calculation. The energetically favorable site for a hydrogen atom is tetrahedral interstitial site while substitutional site is the most preferred site for a helium atom. The formation energies of two hydrogen or helium atoms are determined by their positions, and there are not a multiple of a single atom's. After relaxation, two adjacent hydrogen atoms are away from each other while helium atoms are close to. The reasons for the interaction between two hydrogen o","authors_text":"Qiang Zhao, Xiao-Ping Ouyang, Yang Li, Zheng Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T17:06:26Z","title":"First-principles study on various point defects formed by hydrogen and helium atoms in tungsten"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03255","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":"sha256:51fa636de0196b8366b4b8ae32ee2d8efa0941e686502bf98b0f1fe8c20d13a4","target":"record","created_at":"2026-05-18T00:32:59Z","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":"e51ee8c719c6e4abe2342abc2c55cce2d2473ff03a52172d6288b7bebd7c067f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-06-10T17:06:26Z","title_canon_sha256":"52416b978c9f63a4cac821cca413b7d30b92b7218cb9a8092e860ad678c479fd"},"schema_version":"1.0","source":{"id":"1706.03255","kind":"arxiv","version":1}},"canonical_sha256":"4cd41c409b85d700898a4b745e6763c7fb609ada6e4cb4daa6ebfafe51c8e6ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4cd41c409b85d700898a4b745e6763c7fb609ada6e4cb4daa6ebfafe51c8e6ae","first_computed_at":"2026-05-18T00:32:59.581693Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:59.581693Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6HityMCPrr84FP/RdHUd2PBYKbc2e5wRJ+mFqbPKsazS7JWfsghyeEg/bpIvU7SH+7FyxDGPAMo07u+EjlCuBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:59.582392Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03255","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51fa636de0196b8366b4b8ae32ee2d8efa0941e686502bf98b0f1fe8c20d13a4","sha256:061348202ab687694173dc2f3bc8b4e219f8aa46f8a7247b164c3832530fdc21"],"state_sha256":"57ef59e859083e767242f36d79ef9119f68c718c00af99855c0af419a92b8ca6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oULvQppmCdfm/qpEgb2r/6ihD9nT3QbeQoTFAVHFVI/5eNFqSGbXS+8lx4r7DQEpBOpOmLwILoryz4RlOXBVBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T10:17:29.157520Z","bundle_sha256":"f91b04f23282f9167e046841a0428af76b4c03bd772d24339415272eff79a8eb"}}