Pith Number

pith:6BBIIR7Y

pith:2026:6BBIIR7Y7Y2GMOKTHKR3FJC2CA

not attested not anchored not stored refs pending

NanoVDR: Distilling a 2B Vision-Language Retriever into a 70M Text-Only Encoder for Visual Document Retrieval

Yao Zhang, Yu Xiao, Zhuchenyang Liu

arxiv:2603.12824 v2 · 2026-03-13 · cs.IR · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6BBIIR7Y7Y2GMOKTHKR3FJC2CA}

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	2026-05-28T01:05:12.029485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0428447f8fe346639533aa3b2a45a1003c695404fe0e7d5ec927d8f9f33e367

Aliases

arxiv: 2603.12824 · arxiv_version: 2603.12824v2 · doi: 10.48550/arxiv.2603.12824 · pith_short_12: 6BBIIR7Y7Y2G · pith_short_16: 6BBIIR7Y7Y2GMOKT · pith_short_8: 6BBIIR7Y

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/6BBIIR7Y7Y2GMOKTHKR3FJC2CA \
  | 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: f0428447f8fe346639533aa3b2a45a1003c695404fe0e7d5ec927d8f9f33e367

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "908fd43c863d31a856fcd33408ffc6bee14000a3b52659f75256fe68f9f4c481",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-03-13T09:24:23Z",
    "title_canon_sha256": "633f29593bcc8eaa7d75f7fbb3caf775a411af72272166b3e512668666ee2428"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.12824",
    "kind": "arxiv",
    "version": 2
  }
}