Pith Number

pith:IJZCHUHM

pith:2017:IJZCHUHMJLN7HYQBHJIEOEYCOQ

not attested not anchored not stored refs pending

Passive Classification of Source Printer using Text-line-level Geometric Distortion Signatures from Scanned Images of Printed Documents

Gaurav Gupta, Hardik Jain, Nitin Khanna, Sharad Joshi

arxiv:1706.06651 v1 · 2017-06-20 · cs.MM · 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{IJZCHUHMJLN7HYQBHJIEOEYCOQ}

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	2026-05-18T00:41:57.302242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

427223d0ec4adbf3e2013a504713027412c4c5b803ed392cc8a44b1239156d85

Aliases

arxiv: 1706.06651 · arxiv_version: 1706.06651v1 · doi: 10.48550/arxiv.1706.06651 · pith_short_12: IJZCHUHMJLN7 · pith_short_16: IJZCHUHMJLN7HYQB · pith_short_8: IJZCHUHM

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/IJZCHUHMJLN7HYQBHJIEOEYCOQ \
  | 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: 427223d0ec4adbf3e2013a504713027412c4c5b803ed392cc8a44b1239156d85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa94142d509b5a904a30923f811fd59e88916c8d8fb30e7284c2f4c4f2f8204d",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2017-06-20T20:11:45Z",
    "title_canon_sha256": "9c6617c45c1e4800ab750924ad1b885e6ebc150c43aff9f7453686e6e01c35a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06651",
    "kind": "arxiv",
    "version": 1
  }
}