{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:S2FGCEDXN52EK2Z62O3JMVTR6N","short_pith_number":"pith:S2FGCEDX","canonical_record":{"source":{"id":"1505.04727","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-18T17:24:12Z","cross_cats_sorted":[],"title_canon_sha256":"6e162d0a4a5547c3ddccccecaa55aef6118dfadea956a231903028320ddce33d","abstract_canon_sha256":"ac555d44acd6e7142a25ff0c1934d7067e5c086485eb53756856d5fce0eab86b"},"schema_version":"1.0"},"canonical_sha256":"968a6110776f74456b3ed3b6965671f3654f29cb7102743065e7a4f270e2251d","source":{"kind":"arxiv","id":"1505.04727","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.04727","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1505.04727v2","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.04727","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"S2FGCEDXN52E","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"S2FGCEDXN52EK2Z6","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"S2FGCEDX","created_at":"2026-05-18T12:29:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:S2FGCEDXN52EK2Z62O3JMVTR6N","target":"record","payload":{"canonical_record":{"source":{"id":"1505.04727","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-18T17:24:12Z","cross_cats_sorted":[],"title_canon_sha256":"6e162d0a4a5547c3ddccccecaa55aef6118dfadea956a231903028320ddce33d","abstract_canon_sha256":"ac555d44acd6e7142a25ff0c1934d7067e5c086485eb53756856d5fce0eab86b"},"schema_version":"1.0"},"canonical_sha256":"968a6110776f74456b3ed3b6965671f3654f29cb7102743065e7a4f270e2251d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:59.371967Z","signature_b64":"bPqIIzVbQUEoW6J5olCh8sJIFJ34oD8Dxin7pjVXosWUz+44NKjWMi86sBo5g6NIvvoH+YTzRZFMu4EjcQy8Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"968a6110776f74456b3ed3b6965671f3654f29cb7102743065e7a4f270e2251d","last_reissued_at":"2026-05-18T02:03:59.371233Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:59.371233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1505.04727","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":"2026-05-18T02:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XrJiCPxGH0BixXAC85UQciNZERJs8Pah4/UjDUfXOKVUQ87vv2RtlIFYanF34lwCxIZMEJzXgIFpf9n164edDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:05:04.252229Z"},"content_sha256":"187e317632433bb2704754ff11a96454ee1432aa99b56e4a5ab3d867643afa3d","schema_version":"1.0","event_id":"sha256:187e317632433bb2704754ff11a96454ee1432aa99b56e4a5ab3d867643afa3d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:S2FGCEDXN52EK2Z62O3JMVTR6N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-Q Tantalum Oxide Nanomechanical Resonators by Laser-Oxidation of TaSe2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andres Castellanos-Gomez, Efren Navarro-Moratalla, Eugenio Coronado, Frans D. Tichelaar, Gary A. Steele, Herre S.J. van der Zant, Peter G. Steeneken, Ronald van Leeuwen, Santiago J. Cartamil-Bueno, Warner J. Venstra","submitted_at":"2015-05-18T17:24:12Z","abstract_excerpt":"Controlling the strain in two-dimensional materials is an interesting avenue to tailor the mechanical properties of nanoelectromechanical systems. Here we demonstrate a technique to fabricate ultrathin tantalum oxide nanomechanical resonators with large stress by laser-oxidation of nano-drumhead resonators made out of tantalum diselenide (TaSe2), a layered 2D material belonging to the metal dichalcogenides. Prior to the study of their mechanical properties with a laser interferometer, we checked the oxidation and crystallinity of the freely-suspended tantalum oxide in a high-resolution electro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.04727","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":"2026-05-18T02:03:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lg6p2KL8kULLQpPMK4A4PnY01Id8oU2UKbOAKzEDkRgrqW+6TwYrgPZIn468UN3GfgDhqCt5zJkvIB4a9B3rCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:05:04.252598Z"},"content_sha256":"ccf88f10a0e2eed43359f590c0c3046a2ea2f3ad5c479e48a1a7f4971343979d","schema_version":"1.0","event_id":"sha256:ccf88f10a0e2eed43359f590c0c3046a2ea2f3ad5c479e48a1a7f4971343979d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/bundle.json","state_url":"https://pith.science/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/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":"2026-06-03T13:05:04Z","links":{"resolver":"https://pith.science/pith/S2FGCEDXN52EK2Z62O3JMVTR6N","bundle":"https://pith.science/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/bundle.json","state":"https://pith.science/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S2FGCEDXN52EK2Z62O3JMVTR6N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:S2FGCEDXN52EK2Z62O3JMVTR6N","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":"ac555d44acd6e7142a25ff0c1934d7067e5c086485eb53756856d5fce0eab86b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-18T17:24:12Z","title_canon_sha256":"6e162d0a4a5547c3ddccccecaa55aef6118dfadea956a231903028320ddce33d"},"schema_version":"1.0","source":{"id":"1505.04727","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.04727","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"arxiv_version","alias_value":"1505.04727v2","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.04727","created_at":"2026-05-18T02:03:59Z"},{"alias_kind":"pith_short_12","alias_value":"S2FGCEDXN52E","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_16","alias_value":"S2FGCEDXN52EK2Z6","created_at":"2026-05-18T12:29:39Z"},{"alias_kind":"pith_short_8","alias_value":"S2FGCEDX","created_at":"2026-05-18T12:29:39Z"}],"graph_snapshots":[{"event_id":"sha256:ccf88f10a0e2eed43359f590c0c3046a2ea2f3ad5c479e48a1a7f4971343979d","target":"graph","created_at":"2026-05-18T02:03:59Z","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":"Controlling the strain in two-dimensional materials is an interesting avenue to tailor the mechanical properties of nanoelectromechanical systems. Here we demonstrate a technique to fabricate ultrathin tantalum oxide nanomechanical resonators with large stress by laser-oxidation of nano-drumhead resonators made out of tantalum diselenide (TaSe2), a layered 2D material belonging to the metal dichalcogenides. Prior to the study of their mechanical properties with a laser interferometer, we checked the oxidation and crystallinity of the freely-suspended tantalum oxide in a high-resolution electro","authors_text":"Andres Castellanos-Gomez, Efren Navarro-Moratalla, Eugenio Coronado, Frans D. Tichelaar, Gary A. Steele, Herre S.J. van der Zant, Peter G. Steeneken, Ronald van Leeuwen, Santiago J. Cartamil-Bueno, Warner J. Venstra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-18T17:24:12Z","title":"High-Q Tantalum Oxide Nanomechanical Resonators by Laser-Oxidation of TaSe2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.04727","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":"sha256:187e317632433bb2704754ff11a96454ee1432aa99b56e4a5ab3d867643afa3d","target":"record","created_at":"2026-05-18T02:03:59Z","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":"ac555d44acd6e7142a25ff0c1934d7067e5c086485eb53756856d5fce0eab86b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-18T17:24:12Z","title_canon_sha256":"6e162d0a4a5547c3ddccccecaa55aef6118dfadea956a231903028320ddce33d"},"schema_version":"1.0","source":{"id":"1505.04727","kind":"arxiv","version":2}},"canonical_sha256":"968a6110776f74456b3ed3b6965671f3654f29cb7102743065e7a4f270e2251d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"968a6110776f74456b3ed3b6965671f3654f29cb7102743065e7a4f270e2251d","first_computed_at":"2026-05-18T02:03:59.371233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:59.371233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bPqIIzVbQUEoW6J5olCh8sJIFJ34oD8Dxin7pjVXosWUz+44NKjWMi86sBo5g6NIvvoH+YTzRZFMu4EjcQy8Cg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:59.371967Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.04727","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:187e317632433bb2704754ff11a96454ee1432aa99b56e4a5ab3d867643afa3d","sha256:ccf88f10a0e2eed43359f590c0c3046a2ea2f3ad5c479e48a1a7f4971343979d"],"state_sha256":"f1682bf89ffd1cca44bfa2592067292d4827e18dbe739285ac48ccfb619ded43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3kK8GCjCSywbsIb2B1tkQfZqDpGmwKaqMKX710EruL2LSdQ68sDRTEcW5bhuCh8MJIo6jrg4iTd3PgwWZ3/3Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T13:05:04.254975Z","bundle_sha256":"86eec5df39835c043b1fd3f9d22b965b7d874639da8bedefc0566202d432f079"}}