Pith Number

pith:JW2JALZ7

pith:2022:JW2JALZ7ZXSA52GTBEG4BJCX2Y

not attested not anchored not stored refs pending

Question Personalization in an Intelligent Tutoring System

Ekaterina Kochmar, Iulian Serban, Jackie C.K. Cheung, Robert Belfer, Sabina Elkins

arxiv:2206.14145 v1 · 2022-05-25 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JW2JALZ7ZXSA52GTBEG4BJCX2Y}

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	2026-07-05T04:35:53.504643Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4db4902f3fcde40ee8d3090dc0a457d63635fbb81add7b4f939dec0ebed306f0

Aliases

arxiv: 2206.14145 · arxiv_version: 2206.14145v1 · doi: 10.48550/arxiv.2206.14145 · pith_short_12: JW2JALZ7ZXSA · pith_short_16: JW2JALZ7ZXSA52GT · pith_short_8: JW2JALZ7

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/JW2JALZ7ZXSA52GTBEG4BJCX2Y \
  | 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: 4db4902f3fcde40ee8d3090dc0a457d63635fbb81add7b4f939dec0ebed306f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5682b4df33b7d1104b5bb8512f87e0bb9d8276b69e15d42b636a707ba38b3cc",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2022-05-25T15:23:51Z",
    "title_canon_sha256": "f51ac3d1af6fb60c4a435607ec5c27682e87b76a868db5744b8aedc85b2f44bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.14145",
    "kind": "arxiv",
    "version": 1
  }
}