Pith Number

pith:PQ3KF3A5

pith:2026:PQ3KF3A5ZEFHHFI76NNBFSK2UW

not attested not anchored not stored refs pending

From BERT to T5: A Study of Named Entity Recognition

Mei Jia

arxiv:2605.18462 v1 · 2026-05-18 · 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{PQ3KF3A5ZEFHHFI76NNBFSK2UW}

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	2026-05-20T00:06:02.478131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c36a2ec1dc90a73951ff35a12c95aa5b93a04bead9c3aecf2d022c1441f755d

Aliases

arxiv: 2605.18462 · arxiv_version: 2605.18462v1 · doi: 10.48550/arxiv.2605.18462 · pith_short_12: PQ3KF3A5ZEFH · pith_short_16: PQ3KF3A5ZEFHHFI7 · pith_short_8: PQ3KF3A5

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/PQ3KF3A5ZEFHHFI76NNBFSK2UW \
  | 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: 7c36a2ec1dc90a73951ff35a12c95aa5b93a04bead9c3aecf2d022c1441f755d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "104fa0dd5994f47619683363768209b20a05af5d3dabc03229202bfa3db8ff98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-18T14:23:35Z",
    "title_canon_sha256": "f780c72ea5c0934036e8a77af2864c3335c9b837cb0a0797ffd2f0882ae72057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18462",
    "kind": "arxiv",
    "version": 1
  }
}