Pith Number

pith:ZBFQUHEP

pith:2026:ZBFQUHEPSWCQYPN7NCCXB4N4YH

not attested not anchored not stored refs pending

Invoice Haystack: Benchmarking Document Retrieval and Visual Question Answering Under Strong Visual Homogeneity

Basim Azam, Heethanjan Kanagalingam, Mokeeshan Vathanakumar, Sarah Monazam Erfani, Thenukan Pathmanathan

arxiv:2606.25343 v1 · 2026-06-24 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBFQUHEPSWCQYPN7NCCXB4N4YH}

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	2026-06-25T01:18:02.646860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c84b0a1c8f95850c3dbf688570f1bcc1e86741b64a472054282d9f77aa95e7bc

Aliases

arxiv: 2606.25343 · arxiv_version: 2606.25343v1 · doi: 10.48550/arxiv.2606.25343 · pith_short_12: ZBFQUHEPSWCQ · pith_short_16: ZBFQUHEPSWCQYPN7 · pith_short_8: ZBFQUHEP

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/ZBFQUHEPSWCQYPN7NCCXB4N4YH \
  | 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: c84b0a1c8f95850c3dbf688570f1bcc1e86741b64a472054282d9f77aa95e7bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9b45f50b7ec8d6805f73102066ccf74fbbc05457a933e58fc699256f5a54b94",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-24T03:17:30Z",
    "title_canon_sha256": "6b3d0070d097d9e0ef9ea1f543599a56d6513f16131b2d21c75a9bb4a35e1ca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25343",
    "kind": "arxiv",
    "version": 1
  }
}