{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MEMO6FZIDZ6LV4AKJLVVMSRSYN","short_pith_number":"pith:MEMO6FZI","canonical_record":{"source":{"id":"1409.2862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-08T20:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"0e6a69c818d48edcdb5e37a1f7c60455e890290ab857446e1bf43650e1b03fbc","abstract_canon_sha256":"45a33bc309d7f8319349fb1c45f2670805ea2176816cebc41a524623bf376fb9"},"schema_version":"1.0"},"canonical_sha256":"6118ef17281e7cbaf00a4aeb564a32c36dafab5cd0525d39187885012215c21c","source":{"kind":"arxiv","id":"1409.2862","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.2862","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"arxiv_version","alias_value":"1409.2862v1","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.2862","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"pith_short_12","alias_value":"MEMO6FZIDZ6L","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MEMO6FZIDZ6LV4AK","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MEMO6FZI","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MEMO6FZIDZ6LV4AKJLVVMSRSYN","target":"record","payload":{"canonical_record":{"source":{"id":"1409.2862","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-08T20:30:10Z","cross_cats_sorted":[],"title_canon_sha256":"0e6a69c818d48edcdb5e37a1f7c60455e890290ab857446e1bf43650e1b03fbc","abstract_canon_sha256":"45a33bc309d7f8319349fb1c45f2670805ea2176816cebc41a524623bf376fb9"},"schema_version":"1.0"},"canonical_sha256":"6118ef17281e7cbaf00a4aeb564a32c36dafab5cd0525d39187885012215c21c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:05.866725Z","signature_b64":"p9TAj/FSq9rdeZtTLvyWUAiHcjdUJJfXcEU473dwvo4prBMfcC6i0T+dK7/uw//+pdvZzu5C/nEr8d8aaj/MBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6118ef17281e7cbaf00a4aeb564a32c36dafab5cd0525d39187885012215c21c","last_reissued_at":"2026-05-18T01:42:05.866057Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:05.866057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.2862","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":"2026-05-18T01:42:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"snwjWO0Fm/O1fmgaKL32JUY3uIELuywfbGq92ClwvTO4bEZ7+RAQixPTkR23mK0AEafwSxXyucxkB6/MySyQAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T10:45:49.305143Z"},"content_sha256":"3358d067ef0c8101cd535ec534fc3b8ad5cfc3424c4c5f422b5b30183b5e911f","schema_version":"1.0","event_id":"sha256:3358d067ef0c8101cd535ec534fc3b8ad5cfc3424c4c5f422b5b30183b5e911f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MEMO6FZIDZ6LV4AKJLVVMSRSYN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Raman spectra and electron-phonon coupling in disordered graphene with gate-tunable doping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Isaac Childres, Luis A. Jauregui, Yong P. Chen","submitted_at":"2014-09-08T20:30:10Z","abstract_excerpt":"We report a Raman spectroscopy study of graphene field-effect transistors (GFET) with a controlled amount of defects introduced in graphene by exposure to electron-beam irradiation. Raman spectra are taken at T = 8 K over a range of back gate voltages (Vg) for various irradiation dosages (Re). We study effects in the Raman spectra due to Vg-induced doping and artificially created disorder at various Re. With moderate disorder (irradiation), the Raman G peak with respect to the graphene carrier density (nFE) exhibits a minimum in peak frequency and a maximum in peak width near the charge- neutr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.2862","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":"2026-05-18T01:42:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sloFkSOLRcTBKJZv9J/cdlA2b0LnS4tV4CM6ZbfF7p6wHlCsq8oCbEfPrFpAV1h9254mxHfZ7C54CDqyawtGDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T10:45:49.305882Z"},"content_sha256":"a54395d98055e62c68ae8f80dee87ded7ed35590e26ae9fa7e32bed49dd0649d","schema_version":"1.0","event_id":"sha256:a54395d98055e62c68ae8f80dee87ded7ed35590e26ae9fa7e32bed49dd0649d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/bundle.json","state_url":"https://pith.science/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/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":"2026-06-10T10:45:49Z","links":{"resolver":"https://pith.science/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN","bundle":"https://pith.science/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/bundle.json","state":"https://pith.science/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MEMO6FZIDZ6LV4AKJLVVMSRSYN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MEMO6FZIDZ6LV4AKJLVVMSRSYN","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":"45a33bc309d7f8319349fb1c45f2670805ea2176816cebc41a524623bf376fb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-08T20:30:10Z","title_canon_sha256":"0e6a69c818d48edcdb5e37a1f7c60455e890290ab857446e1bf43650e1b03fbc"},"schema_version":"1.0","source":{"id":"1409.2862","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.2862","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"arxiv_version","alias_value":"1409.2862v1","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.2862","created_at":"2026-05-18T01:42:05Z"},{"alias_kind":"pith_short_12","alias_value":"MEMO6FZIDZ6L","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MEMO6FZIDZ6LV4AK","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MEMO6FZI","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:a54395d98055e62c68ae8f80dee87ded7ed35590e26ae9fa7e32bed49dd0649d","target":"graph","created_at":"2026-05-18T01:42:05Z","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 report a Raman spectroscopy study of graphene field-effect transistors (GFET) with a controlled amount of defects introduced in graphene by exposure to electron-beam irradiation. Raman spectra are taken at T = 8 K over a range of back gate voltages (Vg) for various irradiation dosages (Re). We study effects in the Raman spectra due to Vg-induced doping and artificially created disorder at various Re. With moderate disorder (irradiation), the Raman G peak with respect to the graphene carrier density (nFE) exhibits a minimum in peak frequency and a maximum in peak width near the charge- neutr","authors_text":"Isaac Childres, Luis A. Jauregui, Yong P. Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-08T20:30:10Z","title":"Raman spectra and electron-phonon coupling in disordered graphene with gate-tunable doping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.2862","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":"sha256:3358d067ef0c8101cd535ec534fc3b8ad5cfc3424c4c5f422b5b30183b5e911f","target":"record","created_at":"2026-05-18T01:42:05Z","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":"45a33bc309d7f8319349fb1c45f2670805ea2176816cebc41a524623bf376fb9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-08T20:30:10Z","title_canon_sha256":"0e6a69c818d48edcdb5e37a1f7c60455e890290ab857446e1bf43650e1b03fbc"},"schema_version":"1.0","source":{"id":"1409.2862","kind":"arxiv","version":1}},"canonical_sha256":"6118ef17281e7cbaf00a4aeb564a32c36dafab5cd0525d39187885012215c21c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6118ef17281e7cbaf00a4aeb564a32c36dafab5cd0525d39187885012215c21c","first_computed_at":"2026-05-18T01:42:05.866057Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:05.866057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"p9TAj/FSq9rdeZtTLvyWUAiHcjdUJJfXcEU473dwvo4prBMfcC6i0T+dK7/uw//+pdvZzu5C/nEr8d8aaj/MBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:05.866725Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.2862","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3358d067ef0c8101cd535ec534fc3b8ad5cfc3424c4c5f422b5b30183b5e911f","sha256:a54395d98055e62c68ae8f80dee87ded7ed35590e26ae9fa7e32bed49dd0649d"],"state_sha256":"65d1bc7f7d38eb712f02b759d290eeaa7b7eb5ee928d1c1d7e4daf0714b7abd6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"27cjfaNJg7EoeglP3Fp0kwexhfukMGiJoalM9+6LvoKrkmvTTds4B0EOBfluQNJQW4A5dDc8rs1/6PWCgNDaBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T10:45:49.309843Z","bundle_sha256":"618e78c6a3c362512dbdb9c344eeb584d3c638a3c1e04d032eef5d9512c82bef"}}