Pith Number

pith:IBS7UTJG

pith:2015:IBS7UTJGLJH56G4L5LWYIRCUGG

not attested not anchored not stored refs pending

An Analytical Study of different Document Image Binarization Methods

Mahua Nandy (Pal), Satadal Saha

arxiv:1501.07862 v1 · 2015-01-30 · 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{IBS7UTJGLJH56G4L5LWYIRCUGG}

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	2026-05-18T02:28:13.921288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4065fa4d265a4fdf1b8beaed84445431b427a208ac89e432c11f9a3c1452eae9

Aliases

arxiv: 1501.07862 · arxiv_version: 1501.07862v1 · doi: 10.48550/arxiv.1501.07862 · pith_short_12: IBS7UTJGLJH5 · pith_short_16: IBS7UTJGLJH56G4L · pith_short_8: IBS7UTJG

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/IBS7UTJGLJH56G4L5LWYIRCUGG \
  | 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: 4065fa4d265a4fdf1b8beaed84445431b427a208ac89e432c11f9a3c1452eae9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ec95d14fbd5fa348108d0a7f2aad233c79ba03bcb4bbecbd0334ccef688502d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-01-30T17:50:41Z",
    "title_canon_sha256": "8f192da978ac45b59fd725a18c6cf2bd690750760d2dd3f941e47c6a34f84497"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07862",
    "kind": "arxiv",
    "version": 1
  }
}