{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PV2QUR3FB4RAXRVHO55MI2ORQY","short_pith_number":"pith:PV2QUR3F","canonical_record":{"source":{"id":"1310.1498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2013-10-05T17:27:42Z","cross_cats_sorted":[],"title_canon_sha256":"11d8734d00fa4efb30a2b121c0a66cda3e847ddfb797afc1fa90694062ddf490","abstract_canon_sha256":"2d3aaace18dcddc83216e3fe4e687ac810c197502179bbbfc3118e5b807fe33b"},"schema_version":"1.0"},"canonical_sha256":"7d750a47650f220bc6a7777ac469d18625636e29926c7f65f8aa41ad628799cb","source":{"kind":"arxiv","id":"1310.1498","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1498","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1498v1","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1498","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"pith_short_12","alias_value":"PV2QUR3FB4RA","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"PV2QUR3FB4RAXRVH","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"PV2QUR3F","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PV2QUR3FB4RAXRVHO55MI2ORQY","target":"record","payload":{"canonical_record":{"source":{"id":"1310.1498","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2013-10-05T17:27:42Z","cross_cats_sorted":[],"title_canon_sha256":"11d8734d00fa4efb30a2b121c0a66cda3e847ddfb797afc1fa90694062ddf490","abstract_canon_sha256":"2d3aaace18dcddc83216e3fe4e687ac810c197502179bbbfc3118e5b807fe33b"},"schema_version":"1.0"},"canonical_sha256":"7d750a47650f220bc6a7777ac469d18625636e29926c7f65f8aa41ad628799cb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:11:11.793480Z","signature_b64":"quF9tWKmFJPruv3Fnc5/zuGQvypODmwDBuQVI5OplEd0YcyWlye3u2nT+fEz3NfmD4LshWU3A7mAHSpaoJHFCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d750a47650f220bc6a7777ac469d18625636e29926c7f65f8aa41ad628799cb","last_reissued_at":"2026-05-18T03:11:11.792652Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:11:11.792652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.1498","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":"2026-05-18T03:11:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gfNhHyWn2DcfkIb4qdN7tL/lZr2l2SNsmOUbFUQZhTKK+OP+F5YcLDZLkrHLwxzeybC4Dimvke/eAbCvvIDGAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:28:04.825979Z"},"content_sha256":"00bfda8ae8eb63444178638f0cee27f61ec037514dab20726864ac3e0b34c268","schema_version":"1.0","event_id":"sha256:00bfda8ae8eb63444178638f0cee27f61ec037514dab20726864ac3e0b34c268"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PV2QUR3FB4RAXRVHO55MI2ORQY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deeper Into the Folksonomy Graph: FolkRank Adaptations and Extensions for Improved Tag Recommendations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Andreas Hotho, Nathan Griffiths, Nikolas Landia, Robert J\\\"aschke, Sarabjot Singh Anand, Stephan Doerfel","submitted_at":"2013-10-05T17:27:42Z","abstract_excerpt":"The information contained in social tagging systems is often modelled as a graph of connections between users, items and tags. Recommendation algorithms such as FolkRank, have the potential to leverage complex relationships in the data, corresponding to multiple hops in the graph. We present an in-depth analysis and evaluation of graph models for social tagging data and propose novel adaptations and extensions of FolkRank to improve tag recommendations. We highlight implicit assumptions made by the widely used folksonomy model, and propose an alternative and more accurate graph-representation "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1498","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":"2026-05-18T03:11:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wJdIPg6kTNhfV898a6rRfZz207vsZ0CVJvHlqwFrNMZx0/BhDu5IIrexTpJ/si98CEOFlv8wsg3BjrPjsllPBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:28:04.826671Z"},"content_sha256":"9abbdcaaad94f276d181df9abf17402be2f5d1461e867269907d2b56a69a6244","schema_version":"1.0","event_id":"sha256:9abbdcaaad94f276d181df9abf17402be2f5d1461e867269907d2b56a69a6244"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/bundle.json","state_url":"https://pith.science/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/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":"2026-05-28T18:28:04Z","links":{"resolver":"https://pith.science/pith/PV2QUR3FB4RAXRVHO55MI2ORQY","bundle":"https://pith.science/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/bundle.json","state":"https://pith.science/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PV2QUR3FB4RAXRVHO55MI2ORQY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PV2QUR3FB4RAXRVHO55MI2ORQY","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":"2d3aaace18dcddc83216e3fe4e687ac810c197502179bbbfc3118e5b807fe33b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2013-10-05T17:27:42Z","title_canon_sha256":"11d8734d00fa4efb30a2b121c0a66cda3e847ddfb797afc1fa90694062ddf490"},"schema_version":"1.0","source":{"id":"1310.1498","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.1498","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"arxiv_version","alias_value":"1310.1498v1","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.1498","created_at":"2026-05-18T03:11:11Z"},{"alias_kind":"pith_short_12","alias_value":"PV2QUR3FB4RA","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"PV2QUR3FB4RAXRVH","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"PV2QUR3F","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:9abbdcaaad94f276d181df9abf17402be2f5d1461e867269907d2b56a69a6244","target":"graph","created_at":"2026-05-18T03:11:11Z","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":"The information contained in social tagging systems is often modelled as a graph of connections between users, items and tags. Recommendation algorithms such as FolkRank, have the potential to leverage complex relationships in the data, corresponding to multiple hops in the graph. We present an in-depth analysis and evaluation of graph models for social tagging data and propose novel adaptations and extensions of FolkRank to improve tag recommendations. We highlight implicit assumptions made by the widely used folksonomy model, and propose an alternative and more accurate graph-representation ","authors_text":"Andreas Hotho, Nathan Griffiths, Nikolas Landia, Robert J\\\"aschke, Sarabjot Singh Anand, Stephan Doerfel","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2013-10-05T17:27:42Z","title":"Deeper Into the Folksonomy Graph: FolkRank Adaptations and Extensions for Improved Tag Recommendations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.1498","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":"sha256:00bfda8ae8eb63444178638f0cee27f61ec037514dab20726864ac3e0b34c268","target":"record","created_at":"2026-05-18T03:11:11Z","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":"2d3aaace18dcddc83216e3fe4e687ac810c197502179bbbfc3118e5b807fe33b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2013-10-05T17:27:42Z","title_canon_sha256":"11d8734d00fa4efb30a2b121c0a66cda3e847ddfb797afc1fa90694062ddf490"},"schema_version":"1.0","source":{"id":"1310.1498","kind":"arxiv","version":1}},"canonical_sha256":"7d750a47650f220bc6a7777ac469d18625636e29926c7f65f8aa41ad628799cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d750a47650f220bc6a7777ac469d18625636e29926c7f65f8aa41ad628799cb","first_computed_at":"2026-05-18T03:11:11.792652Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:11.792652Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"quF9tWKmFJPruv3Fnc5/zuGQvypODmwDBuQVI5OplEd0YcyWlye3u2nT+fEz3NfmD4LshWU3A7mAHSpaoJHFCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:11.793480Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.1498","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00bfda8ae8eb63444178638f0cee27f61ec037514dab20726864ac3e0b34c268","sha256:9abbdcaaad94f276d181df9abf17402be2f5d1461e867269907d2b56a69a6244"],"state_sha256":"d30b2cbb585f6dfe6db30ea900e3e559df797c4b625c8e23bc22f91d21e55f49"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7li2RsDJdFV/HFKh6kAkQmb6/NL5SQzuLT5o5EYSTDAvxYKAGFUUOv+CG3L+pzax5SDcrcDx8Qc3BX4MOUv2Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:28:04.830858Z","bundle_sha256":"84c3f045a432e99ed99a4490ceca21c91a17d8418e89a7ea55110da71631e3ba"}}