Pith Number

pith:5S74BVSV

pith:2021:5S74BVSVNUODRCNYSVK2GDLI5J

not attested not anchored not stored refs pending

K-AID: Enhancing Pre-trained Language Models with Domain Knowledge for Question Answering

Feng-Lin Li, Fu Sun, Ji Zhang, Qianglong Chen, Ruize Wang, Xingyi Cheng

arxiv:2109.10547 v1 · 2021-09-22 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5S74BVSVNUODRCNYSVK2GDLI5J}

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	2026-07-05T03:16:37.556632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecbfc0d6556d1c3889b89555a30d68ea6abe842b1b3a21b1e492abc59b0d9fc3

Aliases

arxiv: 2109.10547 · arxiv_version: 2109.10547v1 · doi: 10.48550/arxiv.2109.10547 · pith_short_12: 5S74BVSVNUOD · pith_short_16: 5S74BVSVNUODRCNY · pith_short_8: 5S74BVSV

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/5S74BVSVNUODRCNYSVK2GDLI5J \
  | 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: ecbfc0d6556d1c3889b89555a30d68ea6abe842b1b3a21b1e492abc59b0d9fc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d5047936ac0aaacd9be9c7bd8acc16c5f18a5468e9f08be73c28a145bf48d79",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2021-09-22T07:19:08Z",
    "title_canon_sha256": "90809edec3e2ca2e7345c2b6850c48261918934ed632aaa1a819f30e89df0607"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10547",
    "kind": "arxiv",
    "version": 1
  }
}