Pith Number

pith:ZTSJGWKC

pith:2021:ZTSJGWKCUNEQTZ6NXFCNHN32IX

not attested not anchored not stored refs pending

QEMind: Alibaba's Submission to the WMT21 Quality Estimation Shared Task

Boxing Chen, Jiayi Wang, Ke Wang, Weihua Luo, Yuqi Zhang, Yu Zhao

arxiv:2112.14890 v1 · 2021-12-30 · 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{ZTSJGWKCUNEQTZ6NXFCNHN32IX}

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	2026-07-05T03:44:34.514923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cce4935942a34909e7cdb944d3b77a45d43c8f8e3c7e136dd66847691f4845cb

Aliases

arxiv: 2112.14890 · arxiv_version: 2112.14890v1 · doi: 10.48550/arxiv.2112.14890 · pith_short_12: ZTSJGWKCUNEQ · pith_short_16: ZTSJGWKCUNEQTZ6N · pith_short_8: ZTSJGWKC

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/ZTSJGWKCUNEQTZ6NXFCNHN32IX \
  | 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: cce4935942a34909e7cdb944d3b77a45d43c8f8e3c7e136dd66847691f4845cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2daecb2887b1ce3bdaa54635cbb70ac810a7c3302d5a1db33c9545a486186f13",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-12-30T02:27:29Z",
    "title_canon_sha256": "678eb2dd6fcab3aec4a755a9fe528a2aa42515840b4617dffb963e3616540f2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14890",
    "kind": "arxiv",
    "version": 1
  }
}