Pith Number

pith:MS4NGFRR

pith:2017:MS4NGFRR3ZESYDHNX7LHJDCKXG

not attested not anchored not stored refs pending

Model-based Iterative Restoration for Binary Document Image Compression with Dictionary Learning

Charles A. Bouman, Cheng Lu, Jan P. Allebach, Yandong Guo

arxiv:1704.07019 v1 · 2017-04-24 · 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{MS4NGFRR3ZESYDHNX7LHJDCKXG}

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	2026-05-18T00:45:54.983483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64b8d31631de492c0cedbfd6748c4ab991cac4acd389cf1e43489b054a7d4c75

Aliases

arxiv: 1704.07019 · arxiv_version: 1704.07019v1 · doi: 10.48550/arxiv.1704.07019 · pith_short_12: MS4NGFRR3ZES · pith_short_16: MS4NGFRR3ZESYDHN · pith_short_8: MS4NGFRR

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/MS4NGFRR3ZESYDHNX7LHJDCKXG \
  | 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: 64b8d31631de492c0cedbfd6748c4ab991cac4acd389cf1e43489b054a7d4c75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70ca96c37c4c93d64c85174f3e065982d4a7eb7f329ee14e31fc0e3e819cdc19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-24T02:31:37Z",
    "title_canon_sha256": "7b1b65f64a00ffbd4238c3b43fce87f6da246c6248d308851e989d447ef9aa15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07019",
    "kind": "arxiv",
    "version": 1
  }
}