{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3MKTB4CIDAEKWZ3OL7ZA6OJL2Y","short_pith_number":"pith:3MKTB4CI","canonical_record":{"source":{"id":"1804.10982","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2018-04-29T19:41:07Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"40fba912dbd89fea2c112812e3bc3afca929fe9f4f4efbaffc387453f187235d","abstract_canon_sha256":"c313c91f29aa0bc8f0dd7e0d83a40b728ed7310a504e022e09bac3efd781640f"},"schema_version":"1.0"},"canonical_sha256":"db1530f0481808ab676e5ff20f392bd61fdf639175da62764d79516407215e21","source":{"kind":"arxiv","id":"1804.10982","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10982","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10982v3","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10982","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"pith_short_12","alias_value":"3MKTB4CIDAEK","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3MKTB4CIDAEKWZ3O","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3MKTB4CI","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3MKTB4CIDAEKWZ3OL7ZA6OJL2Y","target":"record","payload":{"canonical_record":{"source":{"id":"1804.10982","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2018-04-29T19:41:07Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"40fba912dbd89fea2c112812e3bc3afca929fe9f4f4efbaffc387453f187235d","abstract_canon_sha256":"c313c91f29aa0bc8f0dd7e0d83a40b728ed7310a504e022e09bac3efd781640f"},"schema_version":"1.0"},"canonical_sha256":"db1530f0481808ab676e5ff20f392bd61fdf639175da62764d79516407215e21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:05:50.763013Z","signature_b64":"kkW2El6X+XO6sCweIs7/W9rJwMb8CbyLzfXyS/ElUA9UIVS5qHxNUPdjCcyUQ6o/d9Ey46U9cUZ03Kfj0mmTCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"db1530f0481808ab676e5ff20f392bd61fdf639175da62764d79516407215e21","last_reissued_at":"2026-05-18T00:05:50.762416Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:05:50.762416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.10982","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:05:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TobCbNu93Mb3yY9CTAoSt/wOHjvuXX8t35Tnj23fil6hE9BxCEzhv3qx7PJyLOYU7rTKSAiU2TWx90FcxoOyDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:00:24.151737Z"},"content_sha256":"4200868ce171c40e6cec6a6788c037fe3a8079cf4ea2dba85c293a6f72f053f0","schema_version":"1.0","event_id":"sha256:4200868ce171c40e6cec6a6788c037fe3a8079cf4ea2dba85c293a6f72f053f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3MKTB4CIDAEKWZ3OL7ZA6OJL2Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Of Wines and Reviews: Measuring and Modeling the Vivino Wine Social Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.CY","authors_text":"Emiliano De Cristofaro, Neema Kotonya, Paolo De Cristofaro","submitted_at":"2018-04-29T19:41:07Z","abstract_excerpt":"This paper presents an analysis of social experiences around wine consumption through the lens of Vivino, a social network for wine enthusiasts with over 26 million users worldwide. We compare users' perceptions of various wine types and regional styles across both New and Old World wines, examining them across price ranges, vintages, regions, varietals, and blends. Among other things, we find that ratings provided by Vivino users are not biased by cost. We then study how wine characteristics, language in wine reviews, and the distribution of wine ratings can be combined to develop prediction "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10982","kind":"arxiv","version":3},"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":"2026-05-18T00:05:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U+RQRD9ivT47DN8fRS6pqC/686cgAi2WdOuaWSQubkSXaAs5HegUbqDXpxqQ2v2qZH3Df15ZdrTmP4MIe/hwDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T09:00:24.152224Z"},"content_sha256":"096ec83cbd7fae1b1bae3e971473b3eb5ba704087bee1cc4929e9c5fb71343b9","schema_version":"1.0","event_id":"sha256:096ec83cbd7fae1b1bae3e971473b3eb5ba704087bee1cc4929e9c5fb71343b9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/bundle.json","state_url":"https://pith.science/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/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":"2026-08-19T09:00:24Z","links":{"resolver":"https://pith.science/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y","bundle":"https://pith.science/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/bundle.json","state":"https://pith.science/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3MKTB4CIDAEKWZ3OL7ZA6OJL2Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3MKTB4CIDAEKWZ3OL7ZA6OJL2Y","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":"c313c91f29aa0bc8f0dd7e0d83a40b728ed7310a504e022e09bac3efd781640f","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2018-04-29T19:41:07Z","title_canon_sha256":"40fba912dbd89fea2c112812e3bc3afca929fe9f4f4efbaffc387453f187235d"},"schema_version":"1.0","source":{"id":"1804.10982","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.10982","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"arxiv_version","alias_value":"1804.10982v3","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.10982","created_at":"2026-05-18T00:05:50Z"},{"alias_kind":"pith_short_12","alias_value":"3MKTB4CIDAEK","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"3MKTB4CIDAEKWZ3O","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"3MKTB4CI","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:096ec83cbd7fae1b1bae3e971473b3eb5ba704087bee1cc4929e9c5fb71343b9","target":"graph","created_at":"2026-05-18T00:05:50Z","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":"This paper presents an analysis of social experiences around wine consumption through the lens of Vivino, a social network for wine enthusiasts with over 26 million users worldwide. We compare users' perceptions of various wine types and regional styles across both New and Old World wines, examining them across price ranges, vintages, regions, varietals, and blends. Among other things, we find that ratings provided by Vivino users are not biased by cost. We then study how wine characteristics, language in wine reviews, and the distribution of wine ratings can be combined to develop prediction ","authors_text":"Emiliano De Cristofaro, Neema Kotonya, Paolo De Cristofaro","cross_cats":["cs.SI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2018-04-29T19:41:07Z","title":"Of Wines and Reviews: Measuring and Modeling the Vivino Wine Social Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.10982","kind":"arxiv","version":3},"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":"sha256:4200868ce171c40e6cec6a6788c037fe3a8079cf4ea2dba85c293a6f72f053f0","target":"record","created_at":"2026-05-18T00:05:50Z","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":"c313c91f29aa0bc8f0dd7e0d83a40b728ed7310a504e022e09bac3efd781640f","cross_cats_sorted":["cs.SI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CY","submitted_at":"2018-04-29T19:41:07Z","title_canon_sha256":"40fba912dbd89fea2c112812e3bc3afca929fe9f4f4efbaffc387453f187235d"},"schema_version":"1.0","source":{"id":"1804.10982","kind":"arxiv","version":3}},"canonical_sha256":"db1530f0481808ab676e5ff20f392bd61fdf639175da62764d79516407215e21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"db1530f0481808ab676e5ff20f392bd61fdf639175da62764d79516407215e21","first_computed_at":"2026-05-18T00:05:50.762416Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:05:50.762416Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kkW2El6X+XO6sCweIs7/W9rJwMb8CbyLzfXyS/ElUA9UIVS5qHxNUPdjCcyUQ6o/d9Ey46U9cUZ03Kfj0mmTCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:05:50.763013Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.10982","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4200868ce171c40e6cec6a6788c037fe3a8079cf4ea2dba85c293a6f72f053f0","sha256:096ec83cbd7fae1b1bae3e971473b3eb5ba704087bee1cc4929e9c5fb71343b9"],"state_sha256":"3301a278c6dcaf9cff001435397663ffad39b5759945e16502d0551d20dfe749"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LgISbB3uXNQjsPi7eSf8APJUy/Co1Mop88RYCTLJfY4tTWzE8BMoVPwUbgl3cn7myavlvnhH9t2hyrXvUBnWCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T09:00:24.157494Z","bundle_sha256":"52c9f29d54e8cf79b54256af6237df038f7f53122e973e2d1b5d37e649c7e03a"}}