Pith Number

pith:KIMBVERA

pith:2021:KIMBVERA57SHG6RGKDRR2PKSWB

not attested not anchored not stored refs pending

A Survey of Knowledge Tracing: Models, Variants, and Applications

Enhong Chen, Minghao Yin, Minjuan Wang, Qi Liu, Shuanghong Shen, Yonghe Zheng, Zhenya Huang

arxiv:2105.15106 v4 · 2021-05-06 · cs.CY · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KIMBVERA57SHG6RGKDRR2PKSWB}

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	2026-07-05T08:43:20.054462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52181a9220efe4737a2650e31d3d52b05df46d2f2b769ccfd5044c4ace17a87c

Aliases

arxiv: 2105.15106 · arxiv_version: 2105.15106v4 · doi: 10.48550/arxiv.2105.15106 · pith_short_12: KIMBVERA57SH · pith_short_16: KIMBVERA57SHG6RG · pith_short_8: KIMBVERA

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/KIMBVERA57SHG6RGKDRR2PKSWB \
  | 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: 52181a9220efe4737a2650e31d3d52b05df46d2f2b769ccfd5044c4ace17a87c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e0204e79c9bbc37863dd01eb3fca2f57d0ffebcff868a2df80fbdaa81c94ac0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-05-06T13:05:55Z",
    "title_canon_sha256": "9bbdec8212e13e8baa90545f287ce58617b5e087af52236e13c923d2bb0b1e27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.15106",
    "kind": "arxiv",
    "version": 4
  }
}