{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:5I3ES2M2PEIJCZVSNDDVISPDMI","short_pith_number":"pith:5I3ES2M2","canonical_record":{"source":{"id":"2111.07410","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DL","submitted_at":"2021-11-14T18:34:54Z","cross_cats_sorted":["cs.SI","physics.soc-ph"],"title_canon_sha256":"24eb558032fb4de68ddf24b784693c66139a56cc8aa72aacf2f0841620fb15c2","abstract_canon_sha256":"de4adfd643bdcfc84a3861e1f3154ac28327cdac83dc8105145390e9302d02c7"},"schema_version":"1.0"},"canonical_sha256":"ea3649699a79109166b268c75449e36207d120295e616827f01539dcbeafcf99","source":{"kind":"arxiv","id":"2111.07410","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.07410","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"2111.07410v1","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.07410","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"5I3ES2M2PEIJ","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_16","alias_value":"5I3ES2M2PEIJCZVS","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_8","alias_value":"5I3ES2M2","created_at":"2026-07-05T03:59:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:5I3ES2M2PEIJCZVSNDDVISPDMI","target":"record","payload":{"canonical_record":{"source":{"id":"2111.07410","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DL","submitted_at":"2021-11-14T18:34:54Z","cross_cats_sorted":["cs.SI","physics.soc-ph"],"title_canon_sha256":"24eb558032fb4de68ddf24b784693c66139a56cc8aa72aacf2f0841620fb15c2","abstract_canon_sha256":"de4adfd643bdcfc84a3861e1f3154ac28327cdac83dc8105145390e9302d02c7"},"schema_version":"1.0"},"canonical_sha256":"ea3649699a79109166b268c75449e36207d120295e616827f01539dcbeafcf99","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:59:25.717586Z","signature_b64":"vnnOdz0nZTmmjbp9zo6jQc5WeYMiqv3naMVWX4xBEiIiJwDnVUGMdsJ4F3L5EQo6aJUspM2u8K3zkin2WacsBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ea3649699a79109166b268c75449e36207d120295e616827f01539dcbeafcf99","last_reissued_at":"2026-07-05T03:59:25.717156Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:59:25.717156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2111.07410","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":"2026-07-05T03:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G96Lm09m1FnMB7u9cLgVx6iIkK3HhTGe0eZGe2TOL3s0xiffUhOOE8a4UEu6/LuO7FpN7M5dALe6Whuz/CyPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T15:04:12.422290Z"},"content_sha256":"de65e8af95a21ec22954ed95f5fed4a55eb9956c2a4375f0acbe4787ad59e4c2","schema_version":"1.0","event_id":"sha256:de65e8af95a21ec22954ed95f5fed4a55eb9956c2a4375f0acbe4787ad59e4c2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:5I3ES2M2PEIJCZVSNDDVISPDMI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Center-Periphery Structure in Communities: Extracellular Vesicles","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.SI","physics.soc-ph"],"primary_cat":"cs.DL","authors_text":"Dmitriy Korobskiy, Eleanor Wedell, George Chacko, Minhyuk Park, Tandy Warnow","submitted_at":"2021-11-14T18:34:54Z","abstract_excerpt":"Clustering and community detection in networks are of broad interest and have been the subject of extensive research that spans several fields. We are interested in the relatively narrow question of detecting communities of scientific publications that are linked by citations. These publication communities can be used to identify scientists with shared interests who form communities of researchers. Building on the well-known k-core algorithm, we have developed a modular pipeline to find publication communities. We compare our approach to communities discovered by the widely used Leiden algorit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.07410","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2111.07410/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":"2026-07-05T03:59:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wJ6do0rcnKMK+5YGLgmJL9ULx0JJl1LXWHPBfhmH5HRpJd1Bwzr7kxmaWokc/zOxKY1iInJRZIC2N56gVwKYBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-06T15:04:12.422681Z"},"content_sha256":"4c04691341cd9f1839a606b275720c3e77b8dc9cd43a38fc050b6a217e5f6bf5","schema_version":"1.0","event_id":"sha256:4c04691341cd9f1839a606b275720c3e77b8dc9cd43a38fc050b6a217e5f6bf5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/bundle.json","state_url":"https://pith.science/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/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":"2026-07-06T15:04:12Z","links":{"resolver":"https://pith.science/pith/5I3ES2M2PEIJCZVSNDDVISPDMI","bundle":"https://pith.science/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/bundle.json","state":"https://pith.science/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5I3ES2M2PEIJCZVSNDDVISPDMI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:5I3ES2M2PEIJCZVSNDDVISPDMI","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":"de4adfd643bdcfc84a3861e1f3154ac28327cdac83dc8105145390e9302d02c7","cross_cats_sorted":["cs.SI","physics.soc-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DL","submitted_at":"2021-11-14T18:34:54Z","title_canon_sha256":"24eb558032fb4de68ddf24b784693c66139a56cc8aa72aacf2f0841620fb15c2"},"schema_version":"1.0","source":{"id":"2111.07410","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2111.07410","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"arxiv_version","alias_value":"2111.07410v1","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2111.07410","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_12","alias_value":"5I3ES2M2PEIJ","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_16","alias_value":"5I3ES2M2PEIJCZVS","created_at":"2026-07-05T03:59:25Z"},{"alias_kind":"pith_short_8","alias_value":"5I3ES2M2","created_at":"2026-07-05T03:59:25Z"}],"graph_snapshots":[{"event_id":"sha256:4c04691341cd9f1839a606b275720c3e77b8dc9cd43a38fc050b6a217e5f6bf5","target":"graph","created_at":"2026-07-05T03:59:25Z","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/2111.07410/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Clustering and community detection in networks are of broad interest and have been the subject of extensive research that spans several fields. We are interested in the relatively narrow question of detecting communities of scientific publications that are linked by citations. These publication communities can be used to identify scientists with shared interests who form communities of researchers. Building on the well-known k-core algorithm, we have developed a modular pipeline to find publication communities. We compare our approach to communities discovered by the widely used Leiden algorit","authors_text":"Dmitriy Korobskiy, Eleanor Wedell, George Chacko, Minhyuk Park, Tandy Warnow","cross_cats":["cs.SI","physics.soc-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DL","submitted_at":"2021-11-14T18:34:54Z","title":"Center-Periphery Structure in Communities: Extracellular Vesicles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2111.07410","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:de65e8af95a21ec22954ed95f5fed4a55eb9956c2a4375f0acbe4787ad59e4c2","target":"record","created_at":"2026-07-05T03:59:25Z","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":"de4adfd643bdcfc84a3861e1f3154ac28327cdac83dc8105145390e9302d02c7","cross_cats_sorted":["cs.SI","physics.soc-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DL","submitted_at":"2021-11-14T18:34:54Z","title_canon_sha256":"24eb558032fb4de68ddf24b784693c66139a56cc8aa72aacf2f0841620fb15c2"},"schema_version":"1.0","source":{"id":"2111.07410","kind":"arxiv","version":1}},"canonical_sha256":"ea3649699a79109166b268c75449e36207d120295e616827f01539dcbeafcf99","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ea3649699a79109166b268c75449e36207d120295e616827f01539dcbeafcf99","first_computed_at":"2026-07-05T03:59:25.717156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:59:25.717156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vnnOdz0nZTmmjbp9zo6jQc5WeYMiqv3naMVWX4xBEiIiJwDnVUGMdsJ4F3L5EQo6aJUspM2u8K3zkin2WacsBg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:59:25.717586Z","signed_message":"canonical_sha256_bytes"},"source_id":"2111.07410","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:de65e8af95a21ec22954ed95f5fed4a55eb9956c2a4375f0acbe4787ad59e4c2","sha256:4c04691341cd9f1839a606b275720c3e77b8dc9cd43a38fc050b6a217e5f6bf5"],"state_sha256":"bfe3758f4c585aa6e7c2f558e2a9ff8d468ff9ea978c68a97d7d36676cf3a77b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CtHSbPmwnUWEO/1I7msfOkckrn0crTrHx1/WQPbpVF1671uIB24lZQzrby+EbGYF9pFMk2WL+M4addJ8I4/iCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-06T15:04:12.424665Z","bundle_sha256":"e4d01df71eefd5830a971bf94112e0f857e13b99a8efc30c4b1ec8d588285fa5"}}