Pith Number

pith:B2WWDVP4

pith:2026:B2WWDVP4EFTOIHL6ZN37ROJQE2

not attested not anchored not stored refs pending

Structural Anchor Pruning: Training-Free Multi-Vector Compression for Visual Document Retrieval

Yao Zhang, Yu Xiao, Zhuchenyang Liu, Ziyu Hu

arxiv:2601.20107 v2 · 2026-01-27 · cs.CV · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2WWDVP4EFTOIHL6ZN37ROJQE2}

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	2026-05-22T01:03:54.715292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ead61d5fc2166e41d7ecb77f8b93026aff9e48133b9436d2214f66a796db177

Aliases

arxiv: 2601.20107 · arxiv_version: 2601.20107v2 · doi: 10.48550/arxiv.2601.20107 · pith_short_12: B2WWDVP4EFTO · pith_short_16: B2WWDVP4EFTOIHL6 · pith_short_8: B2WWDVP4

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/B2WWDVP4EFTOIHL6ZN37ROJQE2 \
  | 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: 0ead61d5fc2166e41d7ecb77f8b93026aff9e48133b9436d2214f66a796db177

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13436cdb0cbef53aad774b4d678bebf353202ff58634dd451329529ee0cd9f1f",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-01-27T22:50:11Z",
    "title_canon_sha256": "41041bea6b1d6f3b7b8c8bb93f3bf8b238e1addba884856f64dd9fdc7f8e5486"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.20107",
    "kind": "arxiv",
    "version": 2
  }
}