Pith Number

pith:MFZLXYYD

pith:2021:MFZLXYYDXOIHK2FVFWCQVNW7ER

not attested not anchored not stored refs pending

Explaining Classes through Word Attribution

Aki-Juhani Kyr\"ol\"ainen, Amanda Myntti, Filip Ginter, Sampo Pyysalo, Samuel R\"onnqvist, Veronika Laippala

arxiv:2108.13653 v1 · 2021-08-31 · 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{MFZLXYYDXOIHK2FVFWCQVNW7ER}

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	2026-07-05T03:10:16.638517Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6172bbe303bb907568b52d850ab6df2467831a83d4a111fee94f7a1036e9e5b2

Aliases

arxiv: 2108.13653 · arxiv_version: 2108.13653v1 · doi: 10.48550/arxiv.2108.13653 · pith_short_12: MFZLXYYDXOIH · pith_short_16: MFZLXYYDXOIHK2FV · pith_short_8: MFZLXYYD

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/MFZLXYYDXOIHK2FVFWCQVNW7ER \
  | 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: 6172bbe303bb907568b52d850ab6df2467831a83d4a111fee94f7a1036e9e5b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88471f49204b1bd0e8ec77ad39dd8775f349800ac0b1aa5470d0d33515c8ba48",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-08-31T07:22:29Z",
    "title_canon_sha256": "17a52c340852d07b3110cc6a831427732b594cfc007729f7c5b673258060705f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13653",
    "kind": "arxiv",
    "version": 1
  }
}