Pith Number

pith:V37PI4QY

pith:2026:V37PI4QYJPSYWIQYX42MJLLJWK

not attested not anchored not stored refs pending

HierDoc: Hierarchical Page-to-Region Evidence Routing for Long-Document Visual Question Answering

Bei Wang, Bing Yin, Houqiang Li, Junyu Xiong, Rongjian Gu, Wengang Zhou, Yonghui Wang

arxiv:2607.29638 v1 · 2026-07-31 · 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{V37PI4QYJPSYWIQYX42MJLLJWK}

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	2026-08-03T01:41:24.946516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aefef472184be58b2218bf34c4ad69b2967ccb5783225e2695f1a91aeb1f10dc

Aliases

arxiv: 2607.29638 · arxiv_version: 2607.29638v1 · doi: 10.48550/arxiv.2607.29638 · pith_short_12: V37PI4QYJPSY · pith_short_16: V37PI4QYJPSYWIQY · pith_short_8: V37PI4QY

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/V37PI4QYJPSYWIQYX42MJLLJWK \
  | 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: aefef472184be58b2218bf34c4ad69b2967ccb5783225e2695f1a91aeb1f10dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9730e93bd65aa6393fcc633770d823a8550f340fa85794b47072cbc7fb66bffd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-07-31T17:17:23Z",
    "title_canon_sha256": "55f025b304fd63e9ed031112c78c5a7635e464b6b3c63bcd0f764e7763879a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29638",
    "kind": "arxiv",
    "version": 1
  }
}