{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LAWB54OTC6CER6TWW4WPVPBWKP","short_pith_number":"pith:LAWB54OT","canonical_record":{"source":{"id":"1904.02670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2019-04-04T17:08:16Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"bba09c9a59eddde2cf3d6a47e093a8962c26e7941735ad0fc2dd8d78ca1ca0f3","abstract_canon_sha256":"c994660052defc77e09f30cbedb5c74821845845e801b78b77f305804e835012"},"schema_version":"1.0"},"canonical_sha256":"582c1ef1d3178448fa76b72cfabc3653d648d83cd171f1bd8e3e2a3229a52277","source":{"kind":"arxiv","id":"1904.02670","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.02670","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"arxiv_version","alias_value":"1904.02670v1","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.02670","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"pith_short_12","alias_value":"LAWB54OTC6CE","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LAWB54OTC6CER6TW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LAWB54OT","created_at":"2026-05-18T12:33:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LAWB54OTC6CER6TWW4WPVPBWKP","target":"record","payload":{"canonical_record":{"source":{"id":"1904.02670","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2019-04-04T17:08:16Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"bba09c9a59eddde2cf3d6a47e093a8962c26e7941735ad0fc2dd8d78ca1ca0f3","abstract_canon_sha256":"c994660052defc77e09f30cbedb5c74821845845e801b78b77f305804e835012"},"schema_version":"1.0"},"canonical_sha256":"582c1ef1d3178448fa76b72cfabc3653d648d83cd171f1bd8e3e2a3229a52277","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:23.070288Z","signature_b64":"M/n/eymRQqni1ezyHdI7mi9/ScV/jmB+hV+rGbC9HgagauZpSe4g1pZuG487AQvUtB0Vk39GZSSZUaPjFf32CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"582c1ef1d3178448fa76b72cfabc3653d648d83cd171f1bd8e3e2a3229a52277","last_reissued_at":"2026-05-17T23:49:23.069553Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:23.069553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.02670","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":"2026-05-17T23:49:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YPRsv4Sd3YHmF+L39SV/1NEKVx5fznLnbqA/RCuf4iK1GXL25uVKsSVZdGQ1M4jrbmqEazhfC/HUnCad5k+UBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:01:33.717403Z"},"content_sha256":"a45529a94e7933c2d9bd83431ca00d44bd8debb48b8ea9031b2c6d0e488523c2","schema_version":"1.0","event_id":"sha256:a45529a94e7933c2d9bd83431ca00d44bd8debb48b8ea9031b2c6d0e488523c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LAWB54OTC6CER6TWW4WPVPBWKP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"What Twitter Profile and Posted Images Reveal About Depression and Anxiety","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.HC","authors_text":"Daniel Preotiuc-Pietro, Johannes C. Eichstaedt, Lyle H. Ungar, Sharath Chandra Guntuku","submitted_at":"2019-04-04T17:08:16Z","abstract_excerpt":"Previous work has found strong links between the choice of social media images and users' emotions, demographics and personality traits. In this study, we examine which attributes of profile and posted images are associated with depression and anxiety of Twitter users. We used a sample of 28,749 Facebook users to build a language prediction model of survey-reported depression and anxiety, and validated it on Twitter on a sample of 887 users who had taken anxiety and depression surveys. We then applied it to a different set of 4,132 Twitter users to impute language-based depression and anxiety "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.02670","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":"2026-05-17T23:49:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A6yT+KvS8TwHm8hFKw7qLM6KyxrXLBEn3fKi+cBCzJPiiwJkavfYkP9Qu+62yed27vQTWIerEhHrmsVd8E3yBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T19:01:33.717763Z"},"content_sha256":"1e3a492e73195f5d2b42f92e7ddeb967462a2884271adb4efaf312a5c95b56fc","schema_version":"1.0","event_id":"sha256:1e3a492e73195f5d2b42f92e7ddeb967462a2884271adb4efaf312a5c95b56fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LAWB54OTC6CER6TWW4WPVPBWKP/bundle.json","state_url":"https://pith.science/pith/LAWB54OTC6CER6TWW4WPVPBWKP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LAWB54OTC6CER6TWW4WPVPBWKP/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":"2026-06-03T19:01:33Z","links":{"resolver":"https://pith.science/pith/LAWB54OTC6CER6TWW4WPVPBWKP","bundle":"https://pith.science/pith/LAWB54OTC6CER6TWW4WPVPBWKP/bundle.json","state":"https://pith.science/pith/LAWB54OTC6CER6TWW4WPVPBWKP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LAWB54OTC6CER6TWW4WPVPBWKP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LAWB54OTC6CER6TWW4WPVPBWKP","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":"c994660052defc77e09f30cbedb5c74821845845e801b78b77f305804e835012","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2019-04-04T17:08:16Z","title_canon_sha256":"bba09c9a59eddde2cf3d6a47e093a8962c26e7941735ad0fc2dd8d78ca1ca0f3"},"schema_version":"1.0","source":{"id":"1904.02670","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.02670","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"arxiv_version","alias_value":"1904.02670v1","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.02670","created_at":"2026-05-17T23:49:23Z"},{"alias_kind":"pith_short_12","alias_value":"LAWB54OTC6CE","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_16","alias_value":"LAWB54OTC6CER6TW","created_at":"2026-05-18T12:33:21Z"},{"alias_kind":"pith_short_8","alias_value":"LAWB54OT","created_at":"2026-05-18T12:33:21Z"}],"graph_snapshots":[{"event_id":"sha256:1e3a492e73195f5d2b42f92e7ddeb967462a2884271adb4efaf312a5c95b56fc","target":"graph","created_at":"2026-05-17T23:49:23Z","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":"Previous work has found strong links between the choice of social media images and users' emotions, demographics and personality traits. In this study, we examine which attributes of profile and posted images are associated with depression and anxiety of Twitter users. We used a sample of 28,749 Facebook users to build a language prediction model of survey-reported depression and anxiety, and validated it on Twitter on a sample of 887 users who had taken anxiety and depression surveys. We then applied it to a different set of 4,132 Twitter users to impute language-based depression and anxiety ","authors_text":"Daniel Preotiuc-Pietro, Johannes C. Eichstaedt, Lyle H. Ungar, Sharath Chandra Guntuku","cross_cats":["cs.SI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2019-04-04T17:08:16Z","title":"What Twitter Profile and Posted Images Reveal About Depression and Anxiety"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.02670","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:a45529a94e7933c2d9bd83431ca00d44bd8debb48b8ea9031b2c6d0e488523c2","target":"record","created_at":"2026-05-17T23:49:23Z","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":"c994660052defc77e09f30cbedb5c74821845845e801b78b77f305804e835012","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2019-04-04T17:08:16Z","title_canon_sha256":"bba09c9a59eddde2cf3d6a47e093a8962c26e7941735ad0fc2dd8d78ca1ca0f3"},"schema_version":"1.0","source":{"id":"1904.02670","kind":"arxiv","version":1}},"canonical_sha256":"582c1ef1d3178448fa76b72cfabc3653d648d83cd171f1bd8e3e2a3229a52277","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"582c1ef1d3178448fa76b72cfabc3653d648d83cd171f1bd8e3e2a3229a52277","first_computed_at":"2026-05-17T23:49:23.069553Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:23.069553Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M/n/eymRQqni1ezyHdI7mi9/ScV/jmB+hV+rGbC9HgagauZpSe4g1pZuG487AQvUtB0Vk39GZSSZUaPjFf32CA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:23.070288Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.02670","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a45529a94e7933c2d9bd83431ca00d44bd8debb48b8ea9031b2c6d0e488523c2","sha256:1e3a492e73195f5d2b42f92e7ddeb967462a2884271adb4efaf312a5c95b56fc"],"state_sha256":"1dbf0c4409e61a7a5e21d44572a1add38a53321b5741f88899b67b95a6b5ca77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6WhhJMRlACIAraf9l5EKhmErjalprCLqb0U4YueKJjzSG8JRcS+VzD5y8Jot+GLyW8sFO93MPwviZeDHYt2QCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T19:01:33.719743Z","bundle_sha256":"45ed8dd9ee9e1084e8e547f98905cdaf6d52e7030c5d93577225fd5b5055095c"}}