Pith Number

pith:THWK45DC

pith:2021:THWK45DCOVTVW2MNDXZHITHADL

not attested not anchored not stored refs pending

A Large-Scale Rich Context Query and Recommendation Dataset in Online Knowledge-Sharing

Bin Hao, Houzhi Shan, Min Zhang, Shaoping Ma, Shaoyun Shi, Weizhi Ma, Xinxing Yu, Yiqun Liu

arxiv:2106.06467 v1 · 2021-06-11 · cs.IR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{THWK45DCOVTVW2MNDXZHITHADL}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:48:30.274941Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99ecae746275675b698d1df2744ce01ada86c25af73c6a77b36ec7fbd03c5f12

Aliases

arxiv: 2106.06467 · arxiv_version: 2106.06467v1 · doi: 10.48550/arxiv.2106.06467 · pith_short_12: THWK45DCOVTV · pith_short_16: THWK45DCOVTVW2MN · pith_short_8: THWK45DC

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/THWK45DCOVTVW2MNDXZHITHADL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 99ecae746275675b698d1df2744ce01ada86c25af73c6a77b36ec7fbd03c5f12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c405a0769733ebe6444a621a217bed8d59f1421474b17efc48fd0145d9852692",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-06-11T15:45:55Z",
    "title_canon_sha256": "3b1423749dd24f982e9911d74fa61318a2599763617969b87c379f2da56fce34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.06467",
    "kind": "arxiv",
    "version": 1
  }
}