Pith Number

pith:VQQTXC2H

pith:2014:VQQTXC2HOWQIKX6ISD52T7TRRS

not attested not anchored not stored refs pending

Entropy Computation of Document Images in Run-Length Compressed Domain

B.B. Chaudhuri, Mohammed Javed, P. Nagabhushan

arxiv:1404.2014 v1 · 2014-04-08 · 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{VQQTXC2HOWQIKX6ISD52T7TRRS}

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	2026-05-18T02:54:38.729471Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac213b8b4775a0855fc890fba9fe718cacc2d8d7287bc3c3b8a561b52a730258

Aliases

arxiv: 1404.2014 · arxiv_version: 1404.2014v1 · doi: 10.48550/arxiv.1404.2014 · pith_short_12: VQQTXC2HOWQI · pith_short_16: VQQTXC2HOWQIKX6I · pith_short_8: VQQTXC2H

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/VQQTXC2HOWQIKX6ISD52T7TRRS \
  | 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: ac213b8b4775a0855fc890fba9fe718cacc2d8d7287bc3c3b8a561b52a730258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62549532cf47fe12dec42fdb234b2979ea53285e1997d70867d4f69119a495f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-04-08T05:15:18Z",
    "title_canon_sha256": "41be09670819857e50fb9235a80db75aac1041f02395263660df360cdd9d0598"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2014",
    "kind": "arxiv",
    "version": 1
  }
}