{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:MJL5UF7RGI7HDVEGK2WDLLWIGY","short_pith_number":"pith:MJL5UF7R","canonical_record":{"source":{"id":"1510.07468","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-10-26T13:18:20Z","cross_cats_sorted":[],"title_canon_sha256":"32ab0dd6e18248530ae58dff20850561be192cd9bf144eaac76536fec8ffab30","abstract_canon_sha256":"878043216ab18a3ef791eff90a13e93f436ffba9153a3f4e816de866d5285d13"},"schema_version":"1.0"},"canonical_sha256":"6257da17f1323e71d48656ac35aec83625f14c62045a9746fff5fe2bc7fac7f1","source":{"kind":"arxiv","id":"1510.07468","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07468","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07468v2","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07468","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"pith_short_12","alias_value":"MJL5UF7RGI7H","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MJL5UF7RGI7HDVEG","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MJL5UF7R","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:MJL5UF7RGI7HDVEGK2WDLLWIGY","target":"record","payload":{"canonical_record":{"source":{"id":"1510.07468","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-10-26T13:18:20Z","cross_cats_sorted":[],"title_canon_sha256":"32ab0dd6e18248530ae58dff20850561be192cd9bf144eaac76536fec8ffab30","abstract_canon_sha256":"878043216ab18a3ef791eff90a13e93f436ffba9153a3f4e816de866d5285d13"},"schema_version":"1.0"},"canonical_sha256":"6257da17f1323e71d48656ac35aec83625f14c62045a9746fff5fe2bc7fac7f1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:23:07.964111Z","signature_b64":"o9DUo1aVh39bD6PkRUAkFrrqF1jSiUbCFy+WfJMcgeNJbWvhUU7nfI5HWleSmTRJZoB/8AYDuk1353HL7pRTDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6257da17f1323e71d48656ac35aec83625f14c62045a9746fff5fe2bc7fac7f1","last_reissued_at":"2026-05-18T01:23:07.963557Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:23:07.963557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.07468","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":"2026-05-18T01:23:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L62/4IY9MNMW39P3tFpRR9NX2bZGwxM27z0/YAN8tp+l16pJJNkb+4r1aMM9kauvsyO08FtK/wWqsvuUrie7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:01:01.659972Z"},"content_sha256":"99342e4ff0f2957dd378a5e0de5664f9070958646b354b4ada20a6e23683b2d7","schema_version":"1.0","event_id":"sha256:99342e4ff0f2957dd378a5e0de5664f9070958646b354b4ada20a6e23683b2d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:MJL5UF7RGI7HDVEGK2WDLLWIGY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Silicon nitride membrane resonators at millikelvin temperatures with quality factors exceeding $10^8$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Gary Steele, Martijn A. Cohen, Mingyun Yuan","submitted_at":"2015-10-26T13:18:20Z","abstract_excerpt":"We study mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor ($Q$) metalized silicon nitride membranes at temperatures down to 14 mK using a three-dimensional optomechanical cavity. Below 200 mK, high-$Q$ modes of the membranes show a diverging increase of $Q$ with decreasing temperature, reaching $Q=1.27\\times10^8$ at 14 mK, an order of magnitude higher than reported before. The ultra-low dissipation makes the membranes highly attractive for the study of optomechanics in the quantum regime, as well as for other applications of optomechanics such as microwav"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07468","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":""},"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":"2026-05-18T01:23:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SsazpeL0veIMXZEzSJnsr1dDBV5GsUZWC3e5mt+tCwiIbnbSQB1BfFsMEPBRV8hp2wgtv5+r6TSzjjZTeWHTCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:01:01.660609Z"},"content_sha256":"76389d7eb40efad641cdfbafb61cfc714a1e56a06fe363968e7ac719ada02325","schema_version":"1.0","event_id":"sha256:76389d7eb40efad641cdfbafb61cfc714a1e56a06fe363968e7ac719ada02325"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/bundle.json","state_url":"https://pith.science/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/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":"2026-05-28T16:01:01Z","links":{"resolver":"https://pith.science/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY","bundle":"https://pith.science/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/bundle.json","state":"https://pith.science/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MJL5UF7RGI7HDVEGK2WDLLWIGY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:MJL5UF7RGI7HDVEGK2WDLLWIGY","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":"878043216ab18a3ef791eff90a13e93f436ffba9153a3f4e816de866d5285d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-10-26T13:18:20Z","title_canon_sha256":"32ab0dd6e18248530ae58dff20850561be192cd9bf144eaac76536fec8ffab30"},"schema_version":"1.0","source":{"id":"1510.07468","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.07468","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"arxiv_version","alias_value":"1510.07468v2","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.07468","created_at":"2026-05-18T01:23:07Z"},{"alias_kind":"pith_short_12","alias_value":"MJL5UF7RGI7H","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"MJL5UF7RGI7HDVEG","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"MJL5UF7R","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:76389d7eb40efad641cdfbafb61cfc714a1e56a06fe363968e7ac719ada02325","target":"graph","created_at":"2026-05-18T01:23:07Z","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":"We study mechanical dissipation of the fundamental mode of millimeter-sized, high quality-factor ($Q$) metalized silicon nitride membranes at temperatures down to 14 mK using a three-dimensional optomechanical cavity. Below 200 mK, high-$Q$ modes of the membranes show a diverging increase of $Q$ with decreasing temperature, reaching $Q=1.27\\times10^8$ at 14 mK, an order of magnitude higher than reported before. The ultra-low dissipation makes the membranes highly attractive for the study of optomechanics in the quantum regime, as well as for other applications of optomechanics such as microwav","authors_text":"Gary Steele, Martijn A. Cohen, Mingyun Yuan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-10-26T13:18:20Z","title":"Silicon nitride membrane resonators at millikelvin temperatures with quality factors exceeding $10^8$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.07468","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":"sha256:99342e4ff0f2957dd378a5e0de5664f9070958646b354b4ada20a6e23683b2d7","target":"record","created_at":"2026-05-18T01:23:07Z","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":"878043216ab18a3ef791eff90a13e93f436ffba9153a3f4e816de866d5285d13","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-10-26T13:18:20Z","title_canon_sha256":"32ab0dd6e18248530ae58dff20850561be192cd9bf144eaac76536fec8ffab30"},"schema_version":"1.0","source":{"id":"1510.07468","kind":"arxiv","version":2}},"canonical_sha256":"6257da17f1323e71d48656ac35aec83625f14c62045a9746fff5fe2bc7fac7f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6257da17f1323e71d48656ac35aec83625f14c62045a9746fff5fe2bc7fac7f1","first_computed_at":"2026-05-18T01:23:07.963557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:23:07.963557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o9DUo1aVh39bD6PkRUAkFrrqF1jSiUbCFy+WfJMcgeNJbWvhUU7nfI5HWleSmTRJZoB/8AYDuk1353HL7pRTDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:23:07.964111Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.07468","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99342e4ff0f2957dd378a5e0de5664f9070958646b354b4ada20a6e23683b2d7","sha256:76389d7eb40efad641cdfbafb61cfc714a1e56a06fe363968e7ac719ada02325"],"state_sha256":"277175ef91efc9d16f6a2574e0290cb88e3daf18069b391b2988edbecc9de76f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJWaepbuhNofpftJQvwZlhIyZC/wO7rkjXCBMqomSGVts235ZMb9FzR38P2Wz0+jUIE67emKpKx4xwQ7JbjlDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T16:01:01.663003Z","bundle_sha256":"4a93319246af7578badd2a3feded70a017289f8baba51858e6886d7cb3c48c7f"}}