Pith Number

pith:3SUODX5K

pith:2025:3SUODX5KFNN565UECOI46AEQST

not attested not anchored not stored refs pending

Inferring Prerequisite Knowledge Concepts in Educational Knowledge Graphs: A Multi-criteria Approach

Mohamed Amine Chatti, Nasha Wibowo, Qurat Ul Ain, Rawaa Alatrash

arxiv:2509.05393 v1 · 2025-09-05 · cs.CY · 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{3SUODX5KFNN565UECOI46AEQST}

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	2026-07-05T12:05:46.445104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dca8e1dfaa2b5bdf76841391cf009094dada2ad38caf3abc2c4eaa4b74d0fc8a

Aliases

arxiv: 2509.05393 · arxiv_version: 2509.05393v1 · doi: 10.48550/arxiv.2509.05393 · pith_short_12: 3SUODX5KFNN5 · pith_short_16: 3SUODX5KFNN565UE · pith_short_8: 3SUODX5K

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/3SUODX5KFNN565UECOI46AEQST \
  | 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: dca8e1dfaa2b5bdf76841391cf009094dada2ad38caf3abc2c4eaa4b74d0fc8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14f2677d011eb181847bf5700b7f1f8fca5b0b5564a403debd2fcd34139d0891",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2025-09-05T10:37:58Z",
    "title_canon_sha256": "1cdb84e3971853524ee569c6a78e89c9397115f28841337c9abbc98b3e1a5e7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.05393",
    "kind": "arxiv",
    "version": 1
  }
}