Pith Number

pith:H5KMET5O

pith:2026:H5KMET5O73I6PBA364KX6LPORK

not attested not anchored not stored refs pending

From Learning Resources to Competencies: LLM-Based Tagging with Evidence and Graph Constraints

Bertrand Laforge, Marie-H\'el\`ene Abel, Ngoc Luyen Le

arxiv:2605.28483 v1 · 2026-05-27 · cs.AI · 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{H5KMET5O73I6PBA364KX6LPORK}

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	2026-05-28T02:04:54.263727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f54c24faefed1e7841bf7157f2dee8abe4ed3005cbfcff983b1278ddc5816f5

Aliases

arxiv: 2605.28483 · arxiv_version: 2605.28483v1 · doi: 10.48550/arxiv.2605.28483 · pith_short_12: H5KMET5O73I6 · pith_short_16: H5KMET5O73I6PBA3 · pith_short_8: H5KMET5O

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/H5KMET5O73I6PBA364KX6LPORK \
  | 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: 3f54c24faefed1e7841bf7157f2dee8abe4ed3005cbfcff983b1278ddc5816f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ee601733ced8758680dc40520b20c73c3bcd7b43b34f2627f96c91e05d23189",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-05-27T13:41:10Z",
    "title_canon_sha256": "4829279d699639b395f5665f881496853a75abe9c1013fb0df737a3dbde73c08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28483",
    "kind": "arxiv",
    "version": 1
  }
}