Pith Number

pith:MMNG3B5V

pith:2002:MMNG3B5VQ5KV54X2EH2A2AJJ4X

not attested not anchored not stored refs pending

A Codebook Generation Algorithm for Document Image Compression

John Danskin, Neal Young, Qin Zhang

arxiv:cs/0205029 v1 · 2002-05-17 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MMNG3B5VQ5KV54X2EH2A2AJJ4X}

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	2026-05-18T01:22:44.402692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

631a6d87b587555ef2fa21f40d0129e5d0c6c0154919671bb8484538abab4d1f

Aliases

arxiv: cs/0205029 · arxiv_version: cs/0205029v1 · doi: 10.48550/arxiv.cs/0205029 · pith_short_12: MMNG3B5VQ5KV · pith_short_16: MMNG3B5VQ5KV54X2 · pith_short_8: MMNG3B5V

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/MMNG3B5VQ5KV54X2EH2A2AJJ4X \
  | 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: 631a6d87b587555ef2fa21f40d0129e5d0c6c0154919671bb8484538abab4d1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c703c2da724f4fe9da78a9773a9dae9082e4f845cf1197aa65ee7c2d5c92ece7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2002-05-17T23:52:11Z",
    "title_canon_sha256": "f8f33af23d361a563f65947901a35eeceec827e9a4e93aa2b8a6fe0ecf95b09c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0205029",
    "kind": "arxiv",
    "version": 1
  }
}