{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:RFAQYK2WYZD7B6DUY35LPQD4TY","short_pith_number":"pith:RFAQYK2W","canonical_record":{"source":{"id":"2607.23995","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-27T04:43:03Z","cross_cats_sorted":[],"title_canon_sha256":"05a963b3dec290d15588f3853a45ba90bbef350c31a67fd7392fb87f538c9baa","abstract_canon_sha256":"936245145ac8074870167ef328dcbb9cc0f6852db0079895ee41f72516286c8f"},"schema_version":"1.0"},"canonical_sha256":"89410c2b56c647f0f874c6fab7c07c9e221383c63a7a32558a2d920221639a16","source":{"kind":"arxiv","id":"2607.23995","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.23995","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"arxiv_version","alias_value":"2607.23995v1","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.23995","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_12","alias_value":"RFAQYK2WYZD7","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_16","alias_value":"RFAQYK2WYZD7B6DU","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_8","alias_value":"RFAQYK2W","created_at":"2026-07-28T01:23:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:RFAQYK2WYZD7B6DUY35LPQD4TY","target":"record","payload":{"canonical_record":{"source":{"id":"2607.23995","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-27T04:43:03Z","cross_cats_sorted":[],"title_canon_sha256":"05a963b3dec290d15588f3853a45ba90bbef350c31a67fd7392fb87f538c9baa","abstract_canon_sha256":"936245145ac8074870167ef328dcbb9cc0f6852db0079895ee41f72516286c8f"},"schema_version":"1.0"},"canonical_sha256":"89410c2b56c647f0f874c6fab7c07c9e221383c63a7a32558a2d920221639a16","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-28T01:23:40.309344Z","signature_b64":"gY1FhfeunGDTamc6uVy5kwb8k4nOpeVWVvY66PgIkBGsRFcMl8DaqJz7PS7usH3Xg8TW7bYNkwQpTpXHfOOhAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"89410c2b56c647f0f874c6fab7c07c9e221383c63a7a32558a2d920221639a16","last_reissued_at":"2026-07-28T01:23:40.308467Z","signature_status":"signed_v1","first_computed_at":"2026-07-28T01:23:40.308467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.23995","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":"2026-07-28T01:23:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/Wy4y19QUBH6oXLX/qN3SArasf/7tIqCc5VkmZkOsCcTkPyam5NZnIjSIlS+LUcPqrdE8mgj7IdkC0GTVjxiAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T12:57:50.638700Z"},"content_sha256":"66fd1e247370954739d2ece2d177fa77ea9e7f84d73b11621463a4b346258959","schema_version":"1.0","event_id":"sha256:66fd1e247370954739d2ece2d177fa77ea9e7f84d73b11621463a4b346258959"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:RFAQYK2WYZD7B6DUY35LPQD4TY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nature of Cr Segregation in FCC to BCC quenched Fe-12Cr Alloy, with Post-Quenching Heat Treatment: A Positron Annihilation Study","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"S. Hari Babu, V. R. Reddy","submitted_at":"2026-07-27T04:43:03Z","abstract_excerpt":"The Fe-Cr binary alloy is a model system for ferrtitic/martensitic steels. Cr clustering instigated loss of ductility, is one of the influential factors to deteriorate the alloys, and its severity depends on Cr concentration. This study aims at understanding (i) the nature of Cr precipitation in Fe-12Cr alloy using positron lifetime spectroscopy, transmission electron microscopy and M\\\"ossbauer spectroscopy studies and (ii) comparing the precipitation concentration and size with respect to Fe-9Cr alloy. The quenched alloys (from the high temperature FCC phase) are found to contain a high densi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.23995","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/2607.23995/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":"2026-07-28T01:23:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HiDmVOqbBsAHGt2+uFDivfKfI880a8QFhwscF8DnRTuFaeqAKvkW2A4WLsRC6XJLMY1GoJOaFJmfFVg5Gq0YCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T12:57:50.639205Z"},"content_sha256":"55f18e614d2d915f889489c37a82f1dc7d72ee675012b9911eed8095658ac2ff","schema_version":"1.0","event_id":"sha256:55f18e614d2d915f889489c37a82f1dc7d72ee675012b9911eed8095658ac2ff"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/bundle.json","state_url":"https://pith.science/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/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":"2026-08-15T12:57:50Z","links":{"resolver":"https://pith.science/pith/RFAQYK2WYZD7B6DUY35LPQD4TY","bundle":"https://pith.science/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/bundle.json","state":"https://pith.science/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RFAQYK2WYZD7B6DUY35LPQD4TY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:RFAQYK2WYZD7B6DUY35LPQD4TY","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":"936245145ac8074870167ef328dcbb9cc0f6852db0079895ee41f72516286c8f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-27T04:43:03Z","title_canon_sha256":"05a963b3dec290d15588f3853a45ba90bbef350c31a67fd7392fb87f538c9baa"},"schema_version":"1.0","source":{"id":"2607.23995","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.23995","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"arxiv_version","alias_value":"2607.23995v1","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.23995","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_12","alias_value":"RFAQYK2WYZD7","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_16","alias_value":"RFAQYK2WYZD7B6DU","created_at":"2026-07-28T01:23:40Z"},{"alias_kind":"pith_short_8","alias_value":"RFAQYK2W","created_at":"2026-07-28T01:23:40Z"}],"graph_snapshots":[{"event_id":"sha256:55f18e614d2d915f889489c37a82f1dc7d72ee675012b9911eed8095658ac2ff","target":"graph","created_at":"2026-07-28T01:23:40Z","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/2607.23995/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Fe-Cr binary alloy is a model system for ferrtitic/martensitic steels. Cr clustering instigated loss of ductility, is one of the influential factors to deteriorate the alloys, and its severity depends on Cr concentration. This study aims at understanding (i) the nature of Cr precipitation in Fe-12Cr alloy using positron lifetime spectroscopy, transmission electron microscopy and M\\\"ossbauer spectroscopy studies and (ii) comparing the precipitation concentration and size with respect to Fe-9Cr alloy. The quenched alloys (from the high temperature FCC phase) are found to contain a high densi","authors_text":"S. Hari Babu, V. R. Reddy","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-27T04:43:03Z","title":"Nature of Cr Segregation in FCC to BCC quenched Fe-12Cr Alloy, with Post-Quenching Heat Treatment: A Positron Annihilation Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.23995","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":"sha256:66fd1e247370954739d2ece2d177fa77ea9e7f84d73b11621463a4b346258959","target":"record","created_at":"2026-07-28T01:23:40Z","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":"936245145ac8074870167ef328dcbb9cc0f6852db0079895ee41f72516286c8f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-27T04:43:03Z","title_canon_sha256":"05a963b3dec290d15588f3853a45ba90bbef350c31a67fd7392fb87f538c9baa"},"schema_version":"1.0","source":{"id":"2607.23995","kind":"arxiv","version":1}},"canonical_sha256":"89410c2b56c647f0f874c6fab7c07c9e221383c63a7a32558a2d920221639a16","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"89410c2b56c647f0f874c6fab7c07c9e221383c63a7a32558a2d920221639a16","first_computed_at":"2026-07-28T01:23:40.308467Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-28T01:23:40.308467Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gY1FhfeunGDTamc6uVy5kwb8k4nOpeVWVvY66PgIkBGsRFcMl8DaqJz7PS7usH3Xg8TW7bYNkwQpTpXHfOOhAQ==","signature_status":"signed_v1","signed_at":"2026-07-28T01:23:40.309344Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.23995","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:66fd1e247370954739d2ece2d177fa77ea9e7f84d73b11621463a4b346258959","sha256:55f18e614d2d915f889489c37a82f1dc7d72ee675012b9911eed8095658ac2ff"],"state_sha256":"ffbe2972fc3dca8d3f740494016091b9c6c819dfd70fa19b9f7ff66624b0ebe5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VequDUIvc1n3tc/7/3pdeKUelF6GLV89IhUdYNOOJ2n0SrDsR9k2FHOc9mJXIj6XaHujpK76BfYDIV9QdflNAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T12:57:50.644802Z","bundle_sha256":"6d37e055df69b6e72f92a520239c865ec751678c7a33c55143179eb6164afa74"}}