Pith Number

pith:B4H7ZCSZ

pith:2026:B4H7ZCSZ35EXGEKZKPL36UTYYD

not attested not anchored not stored refs pending

AutoSpecNER: A Fine-Grained Named Entity Recognition Dataset for Vehicle Specification Extraction

Abdirahman Abdullahm, Filippos Ventirozos, Ioanna Nteka, Jordan Lee, Matthew Shardlow, Peter Appleby

arxiv:2606.24387 v1 · 2026-06-23 · 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{B4H7ZCSZ35EXGEKZKPL36UTYYD}

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	2026-06-24T01:15:29.262570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f0ffc8a59df4973115953d7bf5278c0f858b6ad5041dae18d63c6dcd5160929

Aliases

arxiv: 2606.24387 · arxiv_version: 2606.24387v1 · doi: 10.48550/arxiv.2606.24387 · pith_short_12: B4H7ZCSZ35EX · pith_short_16: B4H7ZCSZ35EXGEKZ · pith_short_8: B4H7ZCSZ

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/B4H7ZCSZ35EXGEKZKPL36UTYYD \
  | 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: 0f0ffc8a59df4973115953d7bf5278c0f858b6ad5041dae18d63c6dcd5160929

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ac6571a496faebb2b85c5dea2fcf8a17b2ba18f3e89cdf1ce0e793fc7fc9be9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-23T10:19:58Z",
    "title_canon_sha256": "ced43bc45e60f2af8d8d304d425b3293a8fee59f651a24349568b20c4db96e34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.24387",
    "kind": "arxiv",
    "version": 1
  }
}