Pith Number

pith:FFD2JSAO

pith:2021:FFD2JSAOY66JLAX4DP4OULRUAW

not attested not anchored not stored refs pending

Quality Estimation without Human-labeled Data

Adithya Renduchintala, Ahmed El-Kishky, Francisco Guzm\'an, Lucia Specia, Vishrav Chaudhary, Yi-Lin Tuan

arxiv:2102.04020 v1 · 2021-02-08 · 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{FFD2JSAOY66JLAX4DP4OULRUAW}

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	2026-07-05T02:13:29.208478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2947a4c80ec7bc9582fc1bf8ea2e3405b703dd126328a9e33886d6252bc23ae3

Aliases

arxiv: 2102.04020 · arxiv_version: 2102.04020v1 · doi: 10.48550/arxiv.2102.04020 · pith_short_12: FFD2JSAOY66J · pith_short_16: FFD2JSAOY66JLAX4 · pith_short_8: FFD2JSAO

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/FFD2JSAOY66JLAX4DP4OULRUAW \
  | 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: 2947a4c80ec7bc9582fc1bf8ea2e3405b703dd126328a9e33886d6252bc23ae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8a420d54bf299026f4164fccd1d1c37f1491bb51f10dc1540eb42a2c77efb18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-02-08T06:25:46Z",
    "title_canon_sha256": "c84490ff64b3153a3ab5c2cee482a5cb86c9d0ab688687647bda41a497aff700"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.04020",
    "kind": "arxiv",
    "version": 1
  }
}