Pith Number

pith:BF2AR5QQ

pith:2021:BF2AR5QQOPFVI65XPXPAI5A4MS

not attested not anchored not stored refs pending

An MRC Framework for Semantic Role Labeling

Guoyin Wang, Han Qiu, Jiwei Li, Jun He, Nan Wang, Xiaofei Sun, Yuxian Meng, Ziyao Wang

arxiv:2109.06660 v2 · 2021-09-14 · 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{BF2AR5QQOPFVI65XPXPAI5A4MS}

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	2026-07-05T04:54:46.689386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

097408f61073cb547bb77dde04741c64b6aef2c29fd30963a6f3f7dc2db4f00f

Aliases

arxiv: 2109.06660 · arxiv_version: 2109.06660v2 · doi: 10.48550/arxiv.2109.06660 · pith_short_12: BF2AR5QQOPFV · pith_short_16: BF2AR5QQOPFVI65X · pith_short_8: BF2AR5QQ

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/BF2AR5QQOPFVI65XPXPAI5A4MS \
  | 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: 097408f61073cb547bb77dde04741c64b6aef2c29fd30963a6f3f7dc2db4f00f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cef3bfbf595a340afc8995cf4c49e6b8239430ef23c2bfa8103fe49c4e2a654",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-14T13:04:08Z",
    "title_canon_sha256": "d34ccb4cc2a722e7ccd0cf714fe83f1c78b2ae3581841127a56e246d7f77ec21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06660",
    "kind": "arxiv",
    "version": 2
  }
}