Pith Number

pith:L35EA4AD

pith:2021:L35EA4ADSIRXJVF7J2AFKVEOEN

not attested not anchored not stored refs pending

Assessing the quality of sources in Wikidata across languages: a hybrid approach

Alessandro Piscopo, Elena Simperl, Gabriel Amaral, Lucie-Aim\'ee Kaffee, Odinaldo Rodrigues

arxiv:2109.09405 v1 · 2021-09-20 · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L35EA4ADSIRXJVF7J2AFKVEOEN}

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	2026-07-05T03:15:45.275225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5efa407003922374d4bf4e8055548e23667505e9a6d6a55b0c868b93b4cbb872

Aliases

arxiv: 2109.09405 · arxiv_version: 2109.09405v1 · doi: 10.48550/arxiv.2109.09405 · pith_short_12: L35EA4ADSIRX · pith_short_16: L35EA4ADSIRXJVF7 · pith_short_8: L35EA4AD

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/L35EA4ADSIRXJVF7J2AFKVEOEN \
  | 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: 5efa407003922374d4bf4e8055548e23667505e9a6d6a55b0c868b93b4cbb872

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6e32307cdcede6cb3887d04c223710fd699933e9bbae3459ea3e0ec3c4691c4",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-09-20T10:06:46Z",
    "title_canon_sha256": "6dab0406b2f281b6ba816b9206bdb42d1b1cd153787a2c9eb3ef32d07c13245e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.09405",
    "kind": "arxiv",
    "version": 1
  }
}