{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:VEMP5LFSPAEPIYB2Z6LUM2DMG5","short_pith_number":"pith:VEMP5LFS","canonical_record":{"source":{"id":"2111.04227","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2021-11-08T01:46:01Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"7e93f6d69ececbe2763260e808c4ac40c0faaf123911cfd535422de987aa89c6","abstract_canon_sha256":"23b5df9b0f93ddc57a4d5b4c95ef1739359574f74dd53140a95429877a56a04e"},"schema_version":"1.0"},"canonical_sha256":"a918feacb27808f4603acf9746686c3744368431971a4506a8a6200838c28eac","source":{"kind":"arxiv","id":"2111.04227","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.04227","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"arxiv_version","alias_value":"2111.04227v4","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.04227","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_12","alias_value":"VEMP5LFSPAEP","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_16","alias_value":"VEMP5LFSPAEPIYB2","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_8","alias_value":"VEMP5LFS","created_at":"2026-07-05T07:15:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:VEMP5LFSPAEPIYB2Z6LUM2DMG5","target":"record","payload":{"canonical_record":{"source":{"id":"2111.04227","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2021-11-08T01:46:01Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"7e93f6d69ececbe2763260e808c4ac40c0faaf123911cfd535422de987aa89c6","abstract_canon_sha256":"23b5df9b0f93ddc57a4d5b4c95ef1739359574f74dd53140a95429877a56a04e"},"schema_version":"1.0"},"canonical_sha256":"a918feacb27808f4603acf9746686c3744368431971a4506a8a6200838c28eac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:15:42.863197Z","signature_b64":"v4rn4q0NCxBflu1vGYG9/qN6S6IdrZiGe6i/fm2T8TIbkPe0n3jB5R9cHEGYFRcbwLcRTAaXLhmydmvQQZl9DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a918feacb27808f4603acf9746686c3744368431971a4506a8a6200838c28eac","last_reissued_at":"2026-07-05T07:15:42.862688Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:15:42.862688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.04227","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T07:15:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GS7tyEI9IZ6EJZHQ4u6KRK7UyrH3lu3VqpEwZGI0243tFNS+l+D/GO+r+ccL4xb7WFO+tEpCoBuMKjeEHxdNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T22:56:26.606818Z"},"content_sha256":"34de6d8c8463502e1105a09093bdc9d3b2bb1d37b1d06360aab7054746b4cafd","schema_version":"1.0","event_id":"sha256:34de6d8c8463502e1105a09093bdc9d3b2bb1d37b1d06360aab7054746b4cafd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:VEMP5LFSPAEPIYB2Z6LUM2DMG5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Epitaxial titanium nitride microwave resonators: Structural, chemical, electrical, and microwave properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"physics.app-ph","authors_text":"Chunqing Deng, Hao Deng, Hsiang-Sheng Ku, Minghua Wang, Ran Gao, Wenlong Yu, Xiaohe Miao, Yue Lin, Zhisheng Li","submitted_at":"2021-11-08T01:46:01Z","abstract_excerpt":"Titanium nitride is an attractive material for a range of superconducting quantum-circuit applications owing to its low microwave losses, high surface inductance, and chemical stability. The physical properties and device performance, nevertheless, depend strongly on the quality of the materials. Here we focus on the highly crystalline and epitaxial titanium nitride thin films deposited on sapphire substrates using magnetron sputtering at an intermediate temperature (300$^{\\circ}$C). We perform a set of systematic and comprehensive material characterization to thoroughly understand the structu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.04227","kind":"arxiv","version":4},"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/2111.04227/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":"2026-07-05T07:15:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YmoH/jdp8ADoudmKJgW4s1WKlbLHgLtA4ONG+NHz+GJm73pOEoM0S7UmsfMxqO+rmSsFOxvNgx3NNtYnFFBGAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-26T22:56:26.607186Z"},"content_sha256":"436d95ed408a02c76d2202a6368759cb2fae78edc60539033e95fb4a08d1c688","schema_version":"1.0","event_id":"sha256:436d95ed408a02c76d2202a6368759cb2fae78edc60539033e95fb4a08d1c688"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/bundle.json","state_url":"https://pith.science/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/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":"2026-07-26T22:56:26Z","links":{"resolver":"https://pith.science/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5","bundle":"https://pith.science/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/bundle.json","state":"https://pith.science/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VEMP5LFSPAEPIYB2Z6LUM2DMG5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:VEMP5LFSPAEPIYB2Z6LUM2DMG5","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":"23b5df9b0f93ddc57a4d5b4c95ef1739359574f74dd53140a95429877a56a04e","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2021-11-08T01:46:01Z","title_canon_sha256":"7e93f6d69ececbe2763260e808c4ac40c0faaf123911cfd535422de987aa89c6"},"schema_version":"1.0","source":{"id":"2111.04227","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.04227","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"arxiv_version","alias_value":"2111.04227v4","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.04227","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_12","alias_value":"VEMP5LFSPAEP","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_16","alias_value":"VEMP5LFSPAEPIYB2","created_at":"2026-07-05T07:15:42Z"},{"alias_kind":"pith_short_8","alias_value":"VEMP5LFS","created_at":"2026-07-05T07:15:42Z"}],"graph_snapshots":[{"event_id":"sha256:436d95ed408a02c76d2202a6368759cb2fae78edc60539033e95fb4a08d1c688","target":"graph","created_at":"2026-07-05T07:15:42Z","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/2111.04227/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Titanium nitride is an attractive material for a range of superconducting quantum-circuit applications owing to its low microwave losses, high surface inductance, and chemical stability. The physical properties and device performance, nevertheless, depend strongly on the quality of the materials. Here we focus on the highly crystalline and epitaxial titanium nitride thin films deposited on sapphire substrates using magnetron sputtering at an intermediate temperature (300$^{\\circ}$C). We perform a set of systematic and comprehensive material characterization to thoroughly understand the structu","authors_text":"Chunqing Deng, Hao Deng, Hsiang-Sheng Ku, Minghua Wang, Ran Gao, Wenlong Yu, Xiaohe Miao, Yue Lin, Zhisheng Li","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2021-11-08T01:46:01Z","title":"Epitaxial titanium nitride microwave resonators: Structural, chemical, electrical, and microwave properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.04227","kind":"arxiv","version":4},"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":"sha256:34de6d8c8463502e1105a09093bdc9d3b2bb1d37b1d06360aab7054746b4cafd","target":"record","created_at":"2026-07-05T07:15:42Z","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":"23b5df9b0f93ddc57a4d5b4c95ef1739359574f74dd53140a95429877a56a04e","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2021-11-08T01:46:01Z","title_canon_sha256":"7e93f6d69ececbe2763260e808c4ac40c0faaf123911cfd535422de987aa89c6"},"schema_version":"1.0","source":{"id":"2111.04227","kind":"arxiv","version":4}},"canonical_sha256":"a918feacb27808f4603acf9746686c3744368431971a4506a8a6200838c28eac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a918feacb27808f4603acf9746686c3744368431971a4506a8a6200838c28eac","first_computed_at":"2026-07-05T07:15:42.862688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:15:42.862688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v4rn4q0NCxBflu1vGYG9/qN6S6IdrZiGe6i/fm2T8TIbkPe0n3jB5R9cHEGYFRcbwLcRTAaXLhmydmvQQZl9DA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:15:42.863197Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.04227","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:34de6d8c8463502e1105a09093bdc9d3b2bb1d37b1d06360aab7054746b4cafd","sha256:436d95ed408a02c76d2202a6368759cb2fae78edc60539033e95fb4a08d1c688"],"state_sha256":"db547beef4b8ea551eec7538dd07982fa2af007ae9438022c38ee576e002d66b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1rjS6PHZXfjIqO/GeaDtjsj901kPDXj26HPgZpKAVtONVMxoSbHYvnd9ch9ynhifV/i46zpefMN7l7UiHOS0Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-26T22:56:26.609685Z","bundle_sha256":"02ea929b73bbab73ce8df98c210f6d781ff43d021c6856c80d9c3264012e0feb"}}