{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:XY6PXGEZUX4ANGF7WCVNICSR2J","short_pith_number":"pith:XY6PXGEZ","canonical_record":{"source":{"id":"2005.09495","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2020-05-19T14:51:15Z","cross_cats_sorted":[],"title_canon_sha256":"a6477b2a2b07e56a756487f4515ad308945859fa39c7991514be597c2e28eb86","abstract_canon_sha256":"9752acad54b0cf8556beaa07b5931e2938024cf546d48bef5be188613e2df935"},"schema_version":"1.0"},"canonical_sha256":"be3cfb9899a5f80698bfb0aad40a51d2760ed2001af3ac962f4499a9cf5f7f69","source":{"kind":"arxiv","id":"2005.09495","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09495","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09495v2","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09495","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_12","alias_value":"XY6PXGEZUX4A","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_16","alias_value":"XY6PXGEZUX4ANGF7","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_8","alias_value":"XY6PXGEZ","created_at":"2026-07-05T02:42:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:XY6PXGEZUX4ANGF7WCVNICSR2J","target":"record","payload":{"canonical_record":{"source":{"id":"2005.09495","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2020-05-19T14:51:15Z","cross_cats_sorted":[],"title_canon_sha256":"a6477b2a2b07e56a756487f4515ad308945859fa39c7991514be597c2e28eb86","abstract_canon_sha256":"9752acad54b0cf8556beaa07b5931e2938024cf546d48bef5be188613e2df935"},"schema_version":"1.0"},"canonical_sha256":"be3cfb9899a5f80698bfb0aad40a51d2760ed2001af3ac962f4499a9cf5f7f69","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:41.730169Z","signature_b64":"eWySXevrcTjpQ3aqA7RZm7PeSiA/OJ3Dnh6HkIqbCro3pbfFzyv4DkFnC3BP6KbvXxNU0XMESBivfkARN0A2BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be3cfb9899a5f80698bfb0aad40a51d2760ed2001af3ac962f4499a9cf5f7f69","last_reissued_at":"2026-07-05T02:42:41.729570Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:41.729570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2005.09495","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":"2026-07-05T02:42:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6uWcI50ka/j0pggA1P/vglayF/m35TGXwkfYSj2kf1p1cTGFiez1bia9OLgCi57lP2w6tKs1hS75UJYdPIa5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:00:54.846066Z"},"content_sha256":"603cf2bb5463790860adb23a85254421b7ddf5beb5923544b3c662d4019a0682","schema_version":"1.0","event_id":"sha256:603cf2bb5463790860adb23a85254421b7ddf5beb5923544b3c662d4019a0682"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:XY6PXGEZUX4ANGF7WCVNICSR2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diversity in News Recommendations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CY","authors_text":"Abraham Bernstein, Beate Klimkiewicz, Benjamin Kille, Christian Baden, Christian Katzenbach, Claes de Vreese, Goran Radanovic, Guy Shani, Judith Moeller, Katharina Zweig, Lucien Heitz, Marc P. Hauer, Michael A. Beam, Natali Helberger, Nava Tintarev, Pascal J\\\"urgens, Sanne Vrijenhoek, Suzanne Tolmeijer, Theresa Zueger, Wiebke Loosen, Wolfgang Schulz, Wouter van Atteveldt","submitted_at":"2020-05-19T14:51:15Z","abstract_excerpt":"News diversity in the media has for a long time been a foundational and uncontested basis for ensuring that the communicative needs of individuals and society at large are met. Today, people increasingly rely on online content and recommender systems to consume information challenging the traditional concept of news diversity. In addition, the very concept of diversity, which differs between disciplines, will need to be re-evaluated requiring a interdisciplinary investigation, which requires a new level of mutual cooperation between computer scientists, social scientists, and legal scholars. B"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09495","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2005.09495/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T02:42:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+VqArXsqRmd+sjN5HPINVCiS1wYHug3m3A8kcCzxrLhRDkFNoc563dZpgI/PaSKuJrJXPYjWk1i2/GraGt/IBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-01T07:00:54.846565Z"},"content_sha256":"c91b759c2aa6e221aee2aea294ce4bea1dc9bd597934e618cd91d15d80247fd9","schema_version":"1.0","event_id":"sha256:c91b759c2aa6e221aee2aea294ce4bea1dc9bd597934e618cd91d15d80247fd9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/bundle.json","state_url":"https://pith.science/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/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":"2026-08-01T07:00:54Z","links":{"resolver":"https://pith.science/pith/XY6PXGEZUX4ANGF7WCVNICSR2J","bundle":"https://pith.science/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/bundle.json","state":"https://pith.science/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XY6PXGEZUX4ANGF7WCVNICSR2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:XY6PXGEZUX4ANGF7WCVNICSR2J","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":"9752acad54b0cf8556beaa07b5931e2938024cf546d48bef5be188613e2df935","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2020-05-19T14:51:15Z","title_canon_sha256":"a6477b2a2b07e56a756487f4515ad308945859fa39c7991514be597c2e28eb86"},"schema_version":"1.0","source":{"id":"2005.09495","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2005.09495","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"arxiv_version","alias_value":"2005.09495v2","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2005.09495","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_12","alias_value":"XY6PXGEZUX4A","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_16","alias_value":"XY6PXGEZUX4ANGF7","created_at":"2026-07-05T02:42:41Z"},{"alias_kind":"pith_short_8","alias_value":"XY6PXGEZ","created_at":"2026-07-05T02:42:41Z"}],"graph_snapshots":[{"event_id":"sha256:c91b759c2aa6e221aee2aea294ce4bea1dc9bd597934e618cd91d15d80247fd9","target":"graph","created_at":"2026-07-05T02:42:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2005.09495/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"News diversity in the media has for a long time been a foundational and uncontested basis for ensuring that the communicative needs of individuals and society at large are met. Today, people increasingly rely on online content and recommender systems to consume information challenging the traditional concept of news diversity. In addition, the very concept of diversity, which differs between disciplines, will need to be re-evaluated requiring a interdisciplinary investigation, which requires a new level of mutual cooperation between computer scientists, social scientists, and legal scholars. B","authors_text":"Abraham Bernstein, Beate Klimkiewicz, Benjamin Kille, Christian Baden, Christian Katzenbach, Claes de Vreese, Goran Radanovic, Guy Shani, Judith Moeller, Katharina Zweig, Lucien Heitz, Marc P. Hauer, Michael A. Beam, Natali Helberger, Nava Tintarev, Pascal J\\\"urgens, Sanne Vrijenhoek, Suzanne Tolmeijer, Theresa Zueger, Wiebke Loosen, Wolfgang Schulz, Wouter van Atteveldt","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2020-05-19T14:51:15Z","title":"Diversity in News Recommendations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2005.09495","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":"sha256:603cf2bb5463790860adb23a85254421b7ddf5beb5923544b3c662d4019a0682","target":"record","created_at":"2026-07-05T02:42:41Z","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":"9752acad54b0cf8556beaa07b5931e2938024cf546d48bef5be188613e2df935","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2020-05-19T14:51:15Z","title_canon_sha256":"a6477b2a2b07e56a756487f4515ad308945859fa39c7991514be597c2e28eb86"},"schema_version":"1.0","source":{"id":"2005.09495","kind":"arxiv","version":2}},"canonical_sha256":"be3cfb9899a5f80698bfb0aad40a51d2760ed2001af3ac962f4499a9cf5f7f69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be3cfb9899a5f80698bfb0aad40a51d2760ed2001af3ac962f4499a9cf5f7f69","first_computed_at":"2026-07-05T02:42:41.729570Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:42:41.729570Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eWySXevrcTjpQ3aqA7RZm7PeSiA/OJ3Dnh6HkIqbCro3pbfFzyv4DkFnC3BP6KbvXxNU0XMESBivfkARN0A2BA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:42:41.730169Z","signed_message":"canonical_sha256_bytes"},"source_id":"2005.09495","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:603cf2bb5463790860adb23a85254421b7ddf5beb5923544b3c662d4019a0682","sha256:c91b759c2aa6e221aee2aea294ce4bea1dc9bd597934e618cd91d15d80247fd9"],"state_sha256":"c898edf90006e4f7fb8f7215aedf5636be45320e70f2a373ef783eb513dc7593"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3ck0dMG6XjGsdjjkg3JkCavL9aNwwWs5ZYZigMrIneqZMdV6AGEZvAcDiSFs6X1hCvU74bzMDbv+w82QivWIDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-01T07:00:54.849785Z","bundle_sha256":"3c43d6b084a3b40c3fc7dbb81c3af05cdd47350eed763a55933e19df4005765a"}}