Pith Number

pith:W7DP5V23

pith:2026:W7DP5V23HFH3IXEJBQ3OBNCJOT

not attested not anchored not stored refs pending

Image Quality Assessment of Identity Cards Using Measures from Open Face Image Quality

Christian Rathgeb, Gregor Grote, Juan E. Tapia

arxiv:2606.11884 v1 · 2026-06-10 · cs.CV · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W7DP5V23HFH3IXEJBQ3OBNCJOT}

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	2026-06-11T01:10:13.741125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7c6fed75b394fb45c890c36e0b44974f8b34d6a529d49c0766c2cbf713f8b50

Aliases

arxiv: 2606.11884 · arxiv_version: 2606.11884v1 · doi: 10.48550/arxiv.2606.11884 · pith_short_12: W7DP5V23HFH3 · pith_short_16: W7DP5V23HFH3IXEJ · pith_short_8: W7DP5V23

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/W7DP5V23HFH3IXEJBQ3OBNCJOT \
  | 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: b7c6fed75b394fb45c890c36e0b44974f8b34d6a529d49c0766c2cbf713f8b50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f332789666ae2b0dceebf0087b1d27be7a8c4b4335326111930126b1ce357611",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-10T10:11:02Z",
    "title_canon_sha256": "da0f9ca14ac64bc6d1792df398272a8f9841adad8ce4aa7a1651b132be855263"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.11884",
    "kind": "arxiv",
    "version": 1
  }
}