{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:KSCMZUOZCK7GYZVNWQQYQE3KCM","short_pith_number":"pith:KSCMZUOZ","canonical_record":{"source":{"id":"2107.11987","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T06:48:51Z","cross_cats_sorted":[],"title_canon_sha256":"cd91f27b7f63b88e760c383776b7c6c0a9acb63a7b6632c08bcef5769fe500d1","abstract_canon_sha256":"223d8f865f775c2058ad1dc547b1294221adf5783bc57ea7b84ee15d82e04ade"},"schema_version":"1.0"},"canonical_sha256":"5484ccd1d912be6c66adb42188136a130ddd06a54b9ccb9f2157f9069c832ff0","source":{"kind":"arxiv","id":"2107.11987","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.11987","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"arxiv_version","alias_value":"2107.11987v2","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.11987","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_12","alias_value":"KSCMZUOZCK7G","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_16","alias_value":"KSCMZUOZCK7GYZVN","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_8","alias_value":"KSCMZUOZ","created_at":"2026-07-05T04:11:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:KSCMZUOZCK7GYZVNWQQYQE3KCM","target":"record","payload":{"canonical_record":{"source":{"id":"2107.11987","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T06:48:51Z","cross_cats_sorted":[],"title_canon_sha256":"cd91f27b7f63b88e760c383776b7c6c0a9acb63a7b6632c08bcef5769fe500d1","abstract_canon_sha256":"223d8f865f775c2058ad1dc547b1294221adf5783bc57ea7b84ee15d82e04ade"},"schema_version":"1.0"},"canonical_sha256":"5484ccd1d912be6c66adb42188136a130ddd06a54b9ccb9f2157f9069c832ff0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:11:47.549740Z","signature_b64":"LM5nRBWcS7GNQvHi0a0xTNZzGnGPiquyLchofCT9ar1PGZXNuEWnX6Em/qhGQdHZFtwgbR3bg2CwsBSuZBpkBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5484ccd1d912be6c66adb42188136a130ddd06a54b9ccb9f2157f9069c832ff0","last_reissued_at":"2026-07-05T04:11:47.549255Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:11:47.549255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.11987","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":"2026-07-05T04:11:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1MkIPTp1BQOSgAVuh120dAMZXeckMT+xg4FyGd8vUQLb0d8/9fceLPKtdjZ48m1ipdY6hOV9I26z2iJUYyWPAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:43:41.766527Z"},"content_sha256":"fac0505b4bd473961754639305436f0cf0da09c42b3b2486ac6d89270d0931e6","schema_version":"1.0","event_id":"sha256:fac0505b4bd473961754639305436f0cf0da09c42b3b2486ac6d89270d0931e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:KSCMZUOZCK7GYZVNWQQYQE3KCM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Laser-equipped gas reaction chamber for probing environmentally sensitive materials at near atomic scale","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Andreas Sturm, Ayman A. El-Zoka, Baptiste Gault, Dierk Raabe, Dirk Vogel, Heena Khanchandani, Leigh Stephenson, Se-Ho Kim, Uwe Tezins","submitted_at":"2021-07-26T06:48:51Z","abstract_excerpt":"Numerous metallurgical and materials science applications depend on quantitative atomic-scale characterizations of environmentally-sensitive materials and their transient states. Studying the effect upon materials subjected to thermochemical treatments in specific gaseous atmospheres is of central importance for specifically studying a material's resistance to certain oxidative or hydrogen environments. It is also important for investigating catalytic materials, direct reduction of an oxide, particular surface science reactions or nanoparticle fabrication routes. This manuscript realizes such "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.11987","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.11987/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":"2026-07-05T04:11:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uDZZnu+ja9U5BetK7kqN0lB1XHP0eP+C3/mgGZlgHmyzSYagDFVVKV96mmP8AdFzWbFK2mFUyKNotDXEodryBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T18:43:41.767136Z"},"content_sha256":"c3c3f8abe27c801b837ff03a5f9be817b0534d65dc8967f876425e485f48f3a2","schema_version":"1.0","event_id":"sha256:c3c3f8abe27c801b837ff03a5f9be817b0534d65dc8967f876425e485f48f3a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/bundle.json","state_url":"https://pith.science/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/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":"2026-08-13T18:43:41Z","links":{"resolver":"https://pith.science/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM","bundle":"https://pith.science/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/bundle.json","state":"https://pith.science/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KSCMZUOZCK7GYZVNWQQYQE3KCM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:KSCMZUOZCK7GYZVNWQQYQE3KCM","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":"223d8f865f775c2058ad1dc547b1294221adf5783bc57ea7b84ee15d82e04ade","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T06:48:51Z","title_canon_sha256":"cd91f27b7f63b88e760c383776b7c6c0a9acb63a7b6632c08bcef5769fe500d1"},"schema_version":"1.0","source":{"id":"2107.11987","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.11987","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"arxiv_version","alias_value":"2107.11987v2","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.11987","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_12","alias_value":"KSCMZUOZCK7G","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_16","alias_value":"KSCMZUOZCK7GYZVN","created_at":"2026-07-05T04:11:47Z"},{"alias_kind":"pith_short_8","alias_value":"KSCMZUOZ","created_at":"2026-07-05T04:11:47Z"}],"graph_snapshots":[{"event_id":"sha256:c3c3f8abe27c801b837ff03a5f9be817b0534d65dc8967f876425e485f48f3a2","target":"graph","created_at":"2026-07-05T04:11:47Z","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/2107.11987/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Numerous metallurgical and materials science applications depend on quantitative atomic-scale characterizations of environmentally-sensitive materials and their transient states. Studying the effect upon materials subjected to thermochemical treatments in specific gaseous atmospheres is of central importance for specifically studying a material's resistance to certain oxidative or hydrogen environments. It is also important for investigating catalytic materials, direct reduction of an oxide, particular surface science reactions or nanoparticle fabrication routes. This manuscript realizes such ","authors_text":"Andreas Sturm, Ayman A. El-Zoka, Baptiste Gault, Dierk Raabe, Dirk Vogel, Heena Khanchandani, Leigh Stephenson, Se-Ho Kim, Uwe Tezins","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T06:48:51Z","title":"Laser-equipped gas reaction chamber for probing environmentally sensitive materials at near atomic scale"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.11987","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:fac0505b4bd473961754639305436f0cf0da09c42b3b2486ac6d89270d0931e6","target":"record","created_at":"2026-07-05T04:11:47Z","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":"223d8f865f775c2058ad1dc547b1294221adf5783bc57ea7b84ee15d82e04ade","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2021-07-26T06:48:51Z","title_canon_sha256":"cd91f27b7f63b88e760c383776b7c6c0a9acb63a7b6632c08bcef5769fe500d1"},"schema_version":"1.0","source":{"id":"2107.11987","kind":"arxiv","version":2}},"canonical_sha256":"5484ccd1d912be6c66adb42188136a130ddd06a54b9ccb9f2157f9069c832ff0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5484ccd1d912be6c66adb42188136a130ddd06a54b9ccb9f2157f9069c832ff0","first_computed_at":"2026-07-05T04:11:47.549255Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:11:47.549255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LM5nRBWcS7GNQvHi0a0xTNZzGnGPiquyLchofCT9ar1PGZXNuEWnX6Em/qhGQdHZFtwgbR3bg2CwsBSuZBpkBg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:11:47.549740Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.11987","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fac0505b4bd473961754639305436f0cf0da09c42b3b2486ac6d89270d0931e6","sha256:c3c3f8abe27c801b837ff03a5f9be817b0534d65dc8967f876425e485f48f3a2"],"state_sha256":"d5073405150dd8569070ad5ff7ea3217d8dd692f6f8fc9c7d510c5a76ef100fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cR71ck5yzZ2tNZFzVIBe3ATtQh2ceT0CuAbH98FXDj9uWIoOzcI5OeDP0ZXbDycbNVAF8+zePPHmx+8Fu6BvDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T18:43:41.771386Z","bundle_sha256":"d559d276f4e70648ee9ac402a4c19a0600a12fa723ebe51dbb060c7ec553864a"}}