Pith Number

pith:OQDGX6TV

pith:2021:OQDGX6TVEATBWV6XPPB7IMDV27

not attested not anchored not stored refs pending

Position Masking for Improved Layout-Aware Document Understanding

Anik Saha, Ashish Verma, Catherine Finegan-Dollak

arxiv:2109.00442 v1 · 2021-09-01 · cs.CL · 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{OQDGX6TVEATBWV6XPPB7IMDV27}

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	2026-07-05T03:10:46.590527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74066bfa7520261b57d77bc3f43075d7efd5a1246550b8a29dc03ac125741bcf

Aliases

arxiv: 2109.00442 · arxiv_version: 2109.00442v1 · doi: 10.48550/arxiv.2109.00442 · pith_short_12: OQDGX6TVEATB · pith_short_16: OQDGX6TVEATBWV6X · pith_short_8: OQDGX6TV

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/OQDGX6TVEATBWV6XPPB7IMDV27 \
  | 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: 74066bfa7520261b57d77bc3f43075d7efd5a1246550b8a29dc03ac125741bcf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72e05486985a75e71cdfe6a6c2c7a81d67bd4754356104aaf92f66372e2e5e40",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-01T15:40:15Z",
    "title_canon_sha256": "6b6f6fc2d7428991c745aac9123721f3f7c1baa7436e602f730ca0b01917fb73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00442",
    "kind": "arxiv",
    "version": 1
  }
}