{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:XJK4I5RXDIL6WJOOYD63H4SBTR","short_pith_number":"pith:XJK4I5RX","canonical_record":{"source":{"id":"1507.01967","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DL","submitted_at":"2015-07-07T21:00:32Z","cross_cats_sorted":[],"title_canon_sha256":"b742091fd26ef1c522684428a69fc05bb4b10cf6621358a6b9edc31e00e68b27","abstract_canon_sha256":"9f99418a19a5c9379f969f05aeabae117cf8241568991b36024d16f82467b723"},"schema_version":"1.0"},"canonical_sha256":"ba55c476371a17eb25cec0fdb3f2419c7fdb36226045dc86f7a93974e33853e5","source":{"kind":"arxiv","id":"1507.01967","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01967","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01967v1","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01967","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"XJK4I5RXDIL6","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XJK4I5RXDIL6WJOO","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XJK4I5RX","created_at":"2026-05-18T12:29:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:XJK4I5RXDIL6WJOOYD63H4SBTR","target":"record","payload":{"canonical_record":{"source":{"id":"1507.01967","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DL","submitted_at":"2015-07-07T21:00:32Z","cross_cats_sorted":[],"title_canon_sha256":"b742091fd26ef1c522684428a69fc05bb4b10cf6621358a6b9edc31e00e68b27","abstract_canon_sha256":"9f99418a19a5c9379f969f05aeabae117cf8241568991b36024d16f82467b723"},"schema_version":"1.0"},"canonical_sha256":"ba55c476371a17eb25cec0fdb3f2419c7fdb36226045dc86f7a93974e33853e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:10.588834Z","signature_b64":"8Y047DfN04g1mn5CiZ2G/lgrf8o7zxZYYNhxA/nIA5pRgYpZjqEJiG7jovF0ShZTRFg1LHFmHStW/QkiqV6EBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba55c476371a17eb25cec0fdb3f2419c7fdb36226045dc86f7a93974e33853e5","last_reissued_at":"2026-05-18T01:37:10.588084Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:10.588084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.01967","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":"2026-05-18T01:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SEHjbSc1OnTyNYaRi51wml2zH/yrONLFcQIGLdSq6f1DIYzAsHd/ifg+NSOuchTbTaTLTWighQQrbT1BQc6YDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:12:00.944114Z"},"content_sha256":"8d5206aae1e6d1bf285ffd45723e536d4aa894228e6ed5ba534c0dd49d71e146","schema_version":"1.0","event_id":"sha256:8d5206aae1e6d1bf285ffd45723e536d4aa894228e6ed5ba534c0dd49d71e146"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:XJK4I5RXDIL6WJOOYD63H4SBTR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Adapting sentiment analysis for tweets linking to scientific papers","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Natalie Friedrich, Stefanie Haustein, Timothy D. Bowman, Wolfgang G. Stock","submitted_at":"2015-07-07T21:00:32Z","abstract_excerpt":"In the context of altmetrics, tweets have been discussed as potential indicators of immediate and broader societal impact of scientific documents. However, it is not yet clear to what extent Twitter captures actual research impact. A small case study (Thelwall et al., 2013b) suggests that tweets to journal articles neither comment on nor express any sentiments towards the publication, which suggests that tweets merely disseminate bibliographic information, often even automatically. This study analyses the sentiments of tweets for a large representative set of scientific papers by specifically "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01967","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":"2026-05-18T01:37:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"68rn7IxqvSe3ykJyRb2xtrTYUyFvW/y0D8xu5GKEDYnDoWaPcZd6sVj5EXcGr3mZhFDX01wSUzwTxcmf6ZIJBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T16:12:00.944961Z"},"content_sha256":"08e9755e2a938d721c6df3296d3bf9d0ccfde2cd79aac829a0455f584aaa5136","schema_version":"1.0","event_id":"sha256:08e9755e2a938d721c6df3296d3bf9d0ccfde2cd79aac829a0455f584aaa5136"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/bundle.json","state_url":"https://pith.science/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/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":"2026-05-31T16:12:00Z","links":{"resolver":"https://pith.science/pith/XJK4I5RXDIL6WJOOYD63H4SBTR","bundle":"https://pith.science/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/bundle.json","state":"https://pith.science/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XJK4I5RXDIL6WJOOYD63H4SBTR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:XJK4I5RXDIL6WJOOYD63H4SBTR","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":"9f99418a19a5c9379f969f05aeabae117cf8241568991b36024d16f82467b723","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DL","submitted_at":"2015-07-07T21:00:32Z","title_canon_sha256":"b742091fd26ef1c522684428a69fc05bb4b10cf6621358a6b9edc31e00e68b27"},"schema_version":"1.0","source":{"id":"1507.01967","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01967","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01967v1","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01967","created_at":"2026-05-18T01:37:10Z"},{"alias_kind":"pith_short_12","alias_value":"XJK4I5RXDIL6","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_16","alias_value":"XJK4I5RXDIL6WJOO","created_at":"2026-05-18T12:29:50Z"},{"alias_kind":"pith_short_8","alias_value":"XJK4I5RX","created_at":"2026-05-18T12:29:50Z"}],"graph_snapshots":[{"event_id":"sha256:08e9755e2a938d721c6df3296d3bf9d0ccfde2cd79aac829a0455f584aaa5136","target":"graph","created_at":"2026-05-18T01:37:10Z","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":"In the context of altmetrics, tweets have been discussed as potential indicators of immediate and broader societal impact of scientific documents. However, it is not yet clear to what extent Twitter captures actual research impact. A small case study (Thelwall et al., 2013b) suggests that tweets to journal articles neither comment on nor express any sentiments towards the publication, which suggests that tweets merely disseminate bibliographic information, often even automatically. This study analyses the sentiments of tweets for a large representative set of scientific papers by specifically ","authors_text":"Natalie Friedrich, Stefanie Haustein, Timothy D. Bowman, Wolfgang G. Stock","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DL","submitted_at":"2015-07-07T21:00:32Z","title":"Adapting sentiment analysis for tweets linking to scientific papers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01967","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":"sha256:8d5206aae1e6d1bf285ffd45723e536d4aa894228e6ed5ba534c0dd49d71e146","target":"record","created_at":"2026-05-18T01:37:10Z","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":"9f99418a19a5c9379f969f05aeabae117cf8241568991b36024d16f82467b723","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"cs.DL","submitted_at":"2015-07-07T21:00:32Z","title_canon_sha256":"b742091fd26ef1c522684428a69fc05bb4b10cf6621358a6b9edc31e00e68b27"},"schema_version":"1.0","source":{"id":"1507.01967","kind":"arxiv","version":1}},"canonical_sha256":"ba55c476371a17eb25cec0fdb3f2419c7fdb36226045dc86f7a93974e33853e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba55c476371a17eb25cec0fdb3f2419c7fdb36226045dc86f7a93974e33853e5","first_computed_at":"2026-05-18T01:37:10.588084Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:10.588084Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8Y047DfN04g1mn5CiZ2G/lgrf8o7zxZYYNhxA/nIA5pRgYpZjqEJiG7jovF0ShZTRFg1LHFmHStW/QkiqV6EBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:10.588834Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.01967","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d5206aae1e6d1bf285ffd45723e536d4aa894228e6ed5ba534c0dd49d71e146","sha256:08e9755e2a938d721c6df3296d3bf9d0ccfde2cd79aac829a0455f584aaa5136"],"state_sha256":"14a43eb5ede9d853c040a4c27cd8a4740ecbbf8f66b43ca707c3e9f8ffcaa251"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MuIFK/FJB52w71GLs9erzS4dwLoloCvb3kpYYaSZ/HcthxZJHA4IX0/eCvlCBo7omtOsteDBPiaXEQ9WJyICBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T16:12:00.948884Z","bundle_sha256":"dd4eebd4503d4508c4ff41fc73d348f1422bdf35848c8fea8584815d0f7a61bb"}}