Pith Number

pith:R2CBXGIO

pith:2021:R2CBXGIO3VYCREPESA3RIK3SLA

not attested not anchored not stored refs pending

Unified Named Entity Recognition as Word-Word Relation Classification

Chong Teng, Donghong Ji, Fei Li, Hao Fei, Jiang Liu, Jingye Li, Meishan Zhang, Shengqiong Wu

arxiv:2112.10070 v1 · 2021-12-19 · 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{R2CBXGIO3VYCREPESA3RIK3SLA}

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	2026-07-05T03:42:10.836774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e841b990edd702891e49037142b72580b1b31b26c7d84481a2088db000f94f8

Aliases

arxiv: 2112.10070 · arxiv_version: 2112.10070v1 · doi: 10.48550/arxiv.2112.10070 · pith_short_12: R2CBXGIO3VYC · pith_short_16: R2CBXGIO3VYCREPE · pith_short_8: R2CBXGIO

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/R2CBXGIO3VYCREPESA3RIK3SLA \
  | 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: 8e841b990edd702891e49037142b72580b1b31b26c7d84481a2088db000f94f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f00a95f94c98da0a37697226b288d0bd47b433bec6367194e26de3a601ca208c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-12-19T06:11:07Z",
    "title_canon_sha256": "b4f0062185edd7775d7e2767fe8bae4f0fce4f52c12e34587b9c3d604fcbcdad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.10070",
    "kind": "arxiv",
    "version": 1
  }
}