{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:VP2MY6D23AXOOQVTTXPL4THCIM","short_pith_number":"pith:VP2MY6D2","canonical_record":{"source":{"id":"1706.04979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-15T17:29:53Z","cross_cats_sorted":["cs.DL","cs.HC"],"title_canon_sha256":"6aa2b9dba61db23f6893315c9d752171be3b9e1e480d302e2546c8b937d51c6a","abstract_canon_sha256":"62fb618978e97ba25211c0a811ca1c79197f69c93380c0081b1fcb34a620243f"},"schema_version":"1.0"},"canonical_sha256":"abf4cc787ad82ee742b39ddebe4ce24338ca09c69cdde457745be8a3a0c3ccd0","source":{"kind":"arxiv","id":"1706.04979","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04979","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04979v1","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04979","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"VP2MY6D23AXO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VP2MY6D23AXOOQVT","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VP2MY6D2","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:VP2MY6D23AXOOQVTTXPL4THCIM","target":"record","payload":{"canonical_record":{"source":{"id":"1706.04979","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-15T17:29:53Z","cross_cats_sorted":["cs.DL","cs.HC"],"title_canon_sha256":"6aa2b9dba61db23f6893315c9d752171be3b9e1e480d302e2546c8b937d51c6a","abstract_canon_sha256":"62fb618978e97ba25211c0a811ca1c79197f69c93380c0081b1fcb34a620243f"},"schema_version":"1.0"},"canonical_sha256":"abf4cc787ad82ee742b39ddebe4ce24338ca09c69cdde457745be8a3a0c3ccd0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:18.401006Z","signature_b64":"EKc9vpJclFJ+PhhzPYIcojgS4E16MY5uHeT/YkcAocU+BUmXs+9lu9Q1Gd48p99w7bTNFvre1nIhSDMH4jHTCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"abf4cc787ad82ee742b39ddebe4ce24338ca09c69cdde457745be8a3a0c3ccd0","last_reissued_at":"2026-05-18T00:42:18.400347Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:18.400347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.04979","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":"2026-05-18T00:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dEDwhk3XIgRUAMidLmnfw1y5zep77JI3Nam2E5aT1ex3QphUCuPSwTG49OMaYlBN1kvyS6LknfCoDBqzn661Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:24:36.078723Z"},"content_sha256":"b6e0dbde0eaf8f3dccbad63ec899baa258a0c2561c1d7d88d1d008f92859803b","schema_version":"1.0","event_id":"sha256:b6e0dbde0eaf8f3dccbad63ec899baa258a0c2561c1d7d88d1d008f92859803b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:VP2MY6D23AXOOQVTTXPL4THCIM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Research Topics Map: rtopmap","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DL","cs.HC"],"primary_cat":"cs.IR","authors_text":"Md Iqbal Hossain, Stephen Kobourov","submitted_at":"2017-06-15T17:29:53Z","abstract_excerpt":"In this paper we describe a system for visualizing and analyzing worldwide research topics, {\\tt rtopmap}. We gather data from google scholar academic research profiles, putting together a weighted topics graph, consisting of over 35,000 nodes and 646,000 edges. The nodes correspond to self-reported research topics, and edges correspond to co-occurring topics in google scholar profiles. The {\\tt rtopmap} system supports zooming/panning/searching and other google-maps-based interactive features. With the help of map overlays, we also visualize the strengths and weaknesses of different academic "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04979","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":"2026-05-18T00:42:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G3IgR57CtKS9wsp5W/LReBxOf+FzQAdHDBF9G4M3vPSXKYBI1ebg+YCvoSZzLrmsbY6e1OKr65doB26Lm+MFCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:24:36.079074Z"},"content_sha256":"53b979ecdaf0310b995f5c03d830c9a06d4b2568c22e9243071ecbaf3bc4c8b1","schema_version":"1.0","event_id":"sha256:53b979ecdaf0310b995f5c03d830c9a06d4b2568c22e9243071ecbaf3bc4c8b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VP2MY6D23AXOOQVTTXPL4THCIM/bundle.json","state_url":"https://pith.science/pith/VP2MY6D23AXOOQVTTXPL4THCIM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VP2MY6D23AXOOQVTTXPL4THCIM/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":"2026-06-01T13:24:36Z","links":{"resolver":"https://pith.science/pith/VP2MY6D23AXOOQVTTXPL4THCIM","bundle":"https://pith.science/pith/VP2MY6D23AXOOQVTTXPL4THCIM/bundle.json","state":"https://pith.science/pith/VP2MY6D23AXOOQVTTXPL4THCIM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VP2MY6D23AXOOQVTTXPL4THCIM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:VP2MY6D23AXOOQVTTXPL4THCIM","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":"62fb618978e97ba25211c0a811ca1c79197f69c93380c0081b1fcb34a620243f","cross_cats_sorted":["cs.DL","cs.HC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-15T17:29:53Z","title_canon_sha256":"6aa2b9dba61db23f6893315c9d752171be3b9e1e480d302e2546c8b937d51c6a"},"schema_version":"1.0","source":{"id":"1706.04979","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.04979","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"arxiv_version","alias_value":"1706.04979v1","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.04979","created_at":"2026-05-18T00:42:18Z"},{"alias_kind":"pith_short_12","alias_value":"VP2MY6D23AXO","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"VP2MY6D23AXOOQVT","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"VP2MY6D2","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:53b979ecdaf0310b995f5c03d830c9a06d4b2568c22e9243071ecbaf3bc4c8b1","target":"graph","created_at":"2026-05-18T00:42:18Z","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 this paper we describe a system for visualizing and analyzing worldwide research topics, {\\tt rtopmap}. We gather data from google scholar academic research profiles, putting together a weighted topics graph, consisting of over 35,000 nodes and 646,000 edges. The nodes correspond to self-reported research topics, and edges correspond to co-occurring topics in google scholar profiles. The {\\tt rtopmap} system supports zooming/panning/searching and other google-maps-based interactive features. With the help of map overlays, we also visualize the strengths and weaknesses of different academic ","authors_text":"Md Iqbal Hossain, Stephen Kobourov","cross_cats":["cs.DL","cs.HC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-15T17:29:53Z","title":"Research Topics Map: rtopmap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.04979","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:b6e0dbde0eaf8f3dccbad63ec899baa258a0c2561c1d7d88d1d008f92859803b","target":"record","created_at":"2026-05-18T00:42:18Z","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":"62fb618978e97ba25211c0a811ca1c79197f69c93380c0081b1fcb34a620243f","cross_cats_sorted":["cs.DL","cs.HC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-15T17:29:53Z","title_canon_sha256":"6aa2b9dba61db23f6893315c9d752171be3b9e1e480d302e2546c8b937d51c6a"},"schema_version":"1.0","source":{"id":"1706.04979","kind":"arxiv","version":1}},"canonical_sha256":"abf4cc787ad82ee742b39ddebe4ce24338ca09c69cdde457745be8a3a0c3ccd0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"abf4cc787ad82ee742b39ddebe4ce24338ca09c69cdde457745be8a3a0c3ccd0","first_computed_at":"2026-05-18T00:42:18.400347Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:42:18.400347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EKc9vpJclFJ+PhhzPYIcojgS4E16MY5uHeT/YkcAocU+BUmXs+9lu9Q1Gd48p99w7bTNFvre1nIhSDMH4jHTCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:42:18.401006Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.04979","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6e0dbde0eaf8f3dccbad63ec899baa258a0c2561c1d7d88d1d008f92859803b","sha256:53b979ecdaf0310b995f5c03d830c9a06d4b2568c22e9243071ecbaf3bc4c8b1"],"state_sha256":"6f0b94d7a214bd29dcb725ad141e26259101d6fdc2e1d74f4892c5c0920eb0e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2bFOwS6s2W7AWpAQMsogGFXl1xS3yrvwbTHqbfKzMjjhJAZq88PoZFVXwJDHOu0p1FyeGY0tLU5Zw0Tc/a97AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T13:24:36.081085Z","bundle_sha256":"dbc6c8dc8aa802718c336f67c2d9f0e92a35a07dc597dd2181f709c5eeb26338"}}