{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:DHCEXWELS3UGU3PH3MIEB4XBZC","short_pith_number":"pith:DHCEXWEL","canonical_record":{"source":{"id":"1507.02045","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-08T06:52:50Z","cross_cats_sorted":[],"title_canon_sha256":"750f4396663d25b842930178b128414377439579b2d84c81680f606ac16b103e","abstract_canon_sha256":"4740e924980778f47d66ef683ad1af586a912d47624524d2668ff2b0ac3d9f73"},"schema_version":"1.0"},"canonical_sha256":"19c44bd88b96e86a6de7db1040f2e1c8abdbe473b2eabdbe2bffbff94722c27d","source":{"kind":"arxiv","id":"1507.02045","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.02045","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"arxiv_version","alias_value":"1507.02045v2","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.02045","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"pith_short_12","alias_value":"DHCEXWELS3UG","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DHCEXWELS3UGU3PH","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DHCEXWEL","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:DHCEXWELS3UGU3PH3MIEB4XBZC","target":"record","payload":{"canonical_record":{"source":{"id":"1507.02045","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-08T06:52:50Z","cross_cats_sorted":[],"title_canon_sha256":"750f4396663d25b842930178b128414377439579b2d84c81680f606ac16b103e","abstract_canon_sha256":"4740e924980778f47d66ef683ad1af586a912d47624524d2668ff2b0ac3d9f73"},"schema_version":"1.0"},"canonical_sha256":"19c44bd88b96e86a6de7db1040f2e1c8abdbe473b2eabdbe2bffbff94722c27d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:15.752105Z","signature_b64":"LiiTPa6aQnkBlTYYS+iQQVtXf4CDwy64AHvcH+E8IZH1lhSpAndIzDtM2kx+UAiu/e3rwxDhI2kHnf/CFkuUDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19c44bd88b96e86a6de7db1040f2e1c8abdbe473b2eabdbe2bffbff94722c27d","last_reissued_at":"2026-05-18T01:35:15.751643Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:15.751643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.02045","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":"2026-05-18T01:35:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M9261zOa0E8F3eCHiqeBRCLqbeJPyt6m2yOVfBdURwmYmsl6IYWLhH8PmX+vjB7G1I+gfppIQiAKAGFntBT3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:01:05.050871Z"},"content_sha256":"28e8fe8f56fcf2f38caaf248c35c7ec3060412df962d52fb7e542a895a1c91e5","schema_version":"1.0","event_id":"sha256:28e8fe8f56fcf2f38caaf248c35c7ec3060412df962d52fb7e542a895a1c91e5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:DHCEXWELS3UGU3PH3MIEB4XBZC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What Your Username Says About You","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Aaron Jaech, Mari Ostendorf","submitted_at":"2015-07-08T06:52:50Z","abstract_excerpt":"Usernames are ubiquitous on the Internet, and they are often suggestive of user demographics. This work looks at the degree to which gender and language can be inferred from a username alone by making use of unsupervised morphology induction to decompose usernames into sub-units. Experimental results on the two tasks demonstrate the effectiveness of the proposed morphological features compared to a character n-gram baseline."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.02045","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":"2026-05-18T01:35:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1oQ1RZfqf0+0W4YGzun2jDoph9OPD9siSP1T8xhpV5rr2q39kCNoDooMRUp+p+G4q1OcKi1sL0+DPoOgBrYBDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T08:01:05.051570Z"},"content_sha256":"894085d51db8e647fb7124d7f5e3aa833eb516a0926012599d63fe9bdd0cceb8","schema_version":"1.0","event_id":"sha256:894085d51db8e647fb7124d7f5e3aa833eb516a0926012599d63fe9bdd0cceb8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/bundle.json","state_url":"https://pith.science/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/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":"2026-06-09T08:01:05Z","links":{"resolver":"https://pith.science/pith/DHCEXWELS3UGU3PH3MIEB4XBZC","bundle":"https://pith.science/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/bundle.json","state":"https://pith.science/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DHCEXWELS3UGU3PH3MIEB4XBZC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DHCEXWELS3UGU3PH3MIEB4XBZC","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":"4740e924980778f47d66ef683ad1af586a912d47624524d2668ff2b0ac3d9f73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-08T06:52:50Z","title_canon_sha256":"750f4396663d25b842930178b128414377439579b2d84c81680f606ac16b103e"},"schema_version":"1.0","source":{"id":"1507.02045","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.02045","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"arxiv_version","alias_value":"1507.02045v2","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.02045","created_at":"2026-05-18T01:35:15Z"},{"alias_kind":"pith_short_12","alias_value":"DHCEXWELS3UG","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DHCEXWELS3UGU3PH","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DHCEXWEL","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:894085d51db8e647fb7124d7f5e3aa833eb516a0926012599d63fe9bdd0cceb8","target":"graph","created_at":"2026-05-18T01:35:15Z","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":"Usernames are ubiquitous on the Internet, and they are often suggestive of user demographics. This work looks at the degree to which gender and language can be inferred from a username alone by making use of unsupervised morphology induction to decompose usernames into sub-units. Experimental results on the two tasks demonstrate the effectiveness of the proposed morphological features compared to a character n-gram baseline.","authors_text":"Aaron Jaech, Mari Ostendorf","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-08T06:52:50Z","title":"What Your Username Says About You"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.02045","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":"sha256:28e8fe8f56fcf2f38caaf248c35c7ec3060412df962d52fb7e542a895a1c91e5","target":"record","created_at":"2026-05-18T01:35:15Z","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":"4740e924980778f47d66ef683ad1af586a912d47624524d2668ff2b0ac3d9f73","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2015-07-08T06:52:50Z","title_canon_sha256":"750f4396663d25b842930178b128414377439579b2d84c81680f606ac16b103e"},"schema_version":"1.0","source":{"id":"1507.02045","kind":"arxiv","version":2}},"canonical_sha256":"19c44bd88b96e86a6de7db1040f2e1c8abdbe473b2eabdbe2bffbff94722c27d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19c44bd88b96e86a6de7db1040f2e1c8abdbe473b2eabdbe2bffbff94722c27d","first_computed_at":"2026-05-18T01:35:15.751643Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:15.751643Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LiiTPa6aQnkBlTYYS+iQQVtXf4CDwy64AHvcH+E8IZH1lhSpAndIzDtM2kx+UAiu/e3rwxDhI2kHnf/CFkuUDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:15.752105Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.02045","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28e8fe8f56fcf2f38caaf248c35c7ec3060412df962d52fb7e542a895a1c91e5","sha256:894085d51db8e647fb7124d7f5e3aa833eb516a0926012599d63fe9bdd0cceb8"],"state_sha256":"783d5ed5c176ceaac48730a3dc93728183131d42e21515a36f11bcb903181a0e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q8LNLSthonoQSxJUxCyhhcWWnPqKfbtlieVc2H8bZ3eNLJX7vpBXflGwdHUV+bGqfZ2EkQz0u0Qgglm5QgzTAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T08:01:05.056047Z","bundle_sha256":"5940197e12e8f2d116fc29418f808f30ba97520ae5bd0c1243e63d76323d8acd"}}