{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OALCKLKZAGS7DWMI4RN3JZXQPA","short_pith_number":"pith:OALCKLKZ","canonical_record":{"source":{"id":"1608.08914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-31T15:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"ce99c267cb82316594b8b21eebbe1ceebf13d340b0da56f8a34c22bbddfe2ab2","abstract_canon_sha256":"a4bc4765020e77069b418c094296b87f5b63466e9bc41dffabf6f36f054cc6a4"},"schema_version":"1.0"},"canonical_sha256":"7016252d5901a5f1d988e45bb4e6f078049418f83356c5c980b1a89b22cbbc02","source":{"kind":"arxiv","id":"1608.08914","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.08914","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"arxiv_version","alias_value":"1608.08914v1","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.08914","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"pith_short_12","alias_value":"OALCKLKZAGS7","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OALCKLKZAGS7DWMI","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OALCKLKZ","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OALCKLKZAGS7DWMI4RN3JZXQPA","target":"record","payload":{"canonical_record":{"source":{"id":"1608.08914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-31T15:47:33Z","cross_cats_sorted":[],"title_canon_sha256":"ce99c267cb82316594b8b21eebbe1ceebf13d340b0da56f8a34c22bbddfe2ab2","abstract_canon_sha256":"a4bc4765020e77069b418c094296b87f5b63466e9bc41dffabf6f36f054cc6a4"},"schema_version":"1.0"},"canonical_sha256":"7016252d5901a5f1d988e45bb4e6f078049418f83356c5c980b1a89b22cbbc02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:39.681246Z","signature_b64":"jFNsN3tIwnyLx4T6C1X3Cw+zXg2RDQs0Qa4ADp57SVxiLIuTQirtWRgw9ztPlvmSOWUZiC4OZ2WcP3hEM5njDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7016252d5901a5f1d988e45bb4e6f078049418f83356c5c980b1a89b22cbbc02","last_reissued_at":"2026-05-18T01:06:39.680725Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:39.680725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1608.08914","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":"2026-05-18T01:06:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9mPpbC16aBvKD5xyE7usopRhZmL5FrqLy6hgpmf3IZB9dBYJYNVCe3KXjSjjo6pSQDbQCvwxc08DjGrMcUyGDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:14:54.322662Z"},"content_sha256":"6cf202dad9829133584323c129947b0ece5e6c03a56a02cd76118658925e3ad9","schema_version":"1.0","event_id":"sha256:6cf202dad9829133584323c129947b0ece5e6c03a56a02cd76118658925e3ad9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OALCKLKZAGS7DWMI4RN3JZXQPA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fabrication of Ultrathin Single-Crystal Diamond Membranes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. D. Greentree, B. A. Fairchild, B. C. Gibson, D. N. Jamieson, F. Waldermann, I. Walmsley, J. M. Smith, P. Olivero, R. A. Taylor, S. Huntington, S. Prawer, S. Rubanov","submitted_at":"2016-08-31T15:47:33Z","abstract_excerpt":"We demonstrate the fabrication of sub-micron layers of single-crystal diamond suitable for subsequent processing as demonstrated by this test ring structure. This method is a significant enabling technology for nanomechanical and photonic structures incorporating colour-centres. The process uses a novel double implant process, annealing and chemical etching to produce membranes of diamond from single-crystal starting material, the thinnest layers achieved to date are 210 nm thick."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.08914","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":""},"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":"2026-05-18T01:06:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IkeV0ZyZPJr93X8eyYZh8HvEvQkDF0BXx3ExVqjBlyp0ZCNyQ2lMNocr7K3SGvn2YD4dumsPBfLeucmYU2t3BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:14:54.323415Z"},"content_sha256":"2f1a630066f80721d69cc798b846ea9554bf408a01920cc325d1841df4104359","schema_version":"1.0","event_id":"sha256:2f1a630066f80721d69cc798b846ea9554bf408a01920cc325d1841df4104359"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/bundle.json","state_url":"https://pith.science/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/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":"2026-05-29T20:14:54Z","links":{"resolver":"https://pith.science/pith/OALCKLKZAGS7DWMI4RN3JZXQPA","bundle":"https://pith.science/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/bundle.json","state":"https://pith.science/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OALCKLKZAGS7DWMI4RN3JZXQPA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OALCKLKZAGS7DWMI4RN3JZXQPA","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":"a4bc4765020e77069b418c094296b87f5b63466e9bc41dffabf6f36f054cc6a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-31T15:47:33Z","title_canon_sha256":"ce99c267cb82316594b8b21eebbe1ceebf13d340b0da56f8a34c22bbddfe2ab2"},"schema_version":"1.0","source":{"id":"1608.08914","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1608.08914","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"arxiv_version","alias_value":"1608.08914v1","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1608.08914","created_at":"2026-05-18T01:06:39Z"},{"alias_kind":"pith_short_12","alias_value":"OALCKLKZAGS7","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OALCKLKZAGS7DWMI","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OALCKLKZ","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:2f1a630066f80721d69cc798b846ea9554bf408a01920cc325d1841df4104359","target":"graph","created_at":"2026-05-18T01:06:39Z","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 demonstrate the fabrication of sub-micron layers of single-crystal diamond suitable for subsequent processing as demonstrated by this test ring structure. This method is a significant enabling technology for nanomechanical and photonic structures incorporating colour-centres. The process uses a novel double implant process, annealing and chemical etching to produce membranes of diamond from single-crystal starting material, the thinnest layers achieved to date are 210 nm thick.","authors_text":"A. D. Greentree, B. A. Fairchild, B. C. Gibson, D. N. Jamieson, F. Waldermann, I. Walmsley, J. M. Smith, P. Olivero, R. A. Taylor, S. Huntington, S. Prawer, S. Rubanov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-31T15:47:33Z","title":"Fabrication of Ultrathin Single-Crystal Diamond Membranes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1608.08914","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":"sha256:6cf202dad9829133584323c129947b0ece5e6c03a56a02cd76118658925e3ad9","target":"record","created_at":"2026-05-18T01:06:39Z","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":"a4bc4765020e77069b418c094296b87f5b63466e9bc41dffabf6f36f054cc6a4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-08-31T15:47:33Z","title_canon_sha256":"ce99c267cb82316594b8b21eebbe1ceebf13d340b0da56f8a34c22bbddfe2ab2"},"schema_version":"1.0","source":{"id":"1608.08914","kind":"arxiv","version":1}},"canonical_sha256":"7016252d5901a5f1d988e45bb4e6f078049418f83356c5c980b1a89b22cbbc02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7016252d5901a5f1d988e45bb4e6f078049418f83356c5c980b1a89b22cbbc02","first_computed_at":"2026-05-18T01:06:39.680725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:06:39.680725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jFNsN3tIwnyLx4T6C1X3Cw+zXg2RDQs0Qa4ADp57SVxiLIuTQirtWRgw9ztPlvmSOWUZiC4OZ2WcP3hEM5njDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:06:39.681246Z","signed_message":"canonical_sha256_bytes"},"source_id":"1608.08914","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6cf202dad9829133584323c129947b0ece5e6c03a56a02cd76118658925e3ad9","sha256:2f1a630066f80721d69cc798b846ea9554bf408a01920cc325d1841df4104359"],"state_sha256":"7681ab64af9a91aa6ac271ad37c8b4c0db3b7778929c9fe1906245f87db70cec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qdGQJ492CFRHzahxs8lbxAa8Z8HRgkwr1p/QYS3HB5vhwvWWcpJGfYSq7juK9EpiLqgyXzaTuYz0WPatGE9UDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T20:14:54.327421Z","bundle_sha256":"38f75c37a908875072ab653bf9ab852ddc32f11916630cf72a07e501e71bcc63"}}