Pith Number

pith:WFZNPEFX

pith:2011:WFZNPEFXB63AZS45GAVYU63Y6J

not attested not anchored not stored refs pending

A Reduced Reference Image Quality Measure Using Bessel K Forms Model for Tetrolet Coefficients

Abdelkaher Ait Abdelouahad (GSCM-LRIT), Driss Aboutajdine (GSCM-LRIT), Hocine Cherifi (Le2i), Mohammed El Hassouni (DESTEC)

arxiv:1112.4135 v1 · 2011-12-18 · 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{WFZNPEFXB63AZS45GAVYU63Y6J}

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	2026-05-18T04:06:06.969769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b172d790b70fb60ccb9d302b8a7b78f24fed637f1b5fd98fd4645d71929dda3d

Aliases

arxiv: 1112.4135 · arxiv_version: 1112.4135v1 · doi: 10.48550/arxiv.1112.4135 · pith_short_12: WFZNPEFXB63A · pith_short_16: WFZNPEFXB63AZS45 · pith_short_8: WFZNPEFX

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/WFZNPEFXB63AZS45GAVYU63Y6J \
  | 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: b172d790b70fb60ccb9d302b8a7b78f24fed637f1b5fd98fd4645d71929dda3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8011c9bd43d988778b6725b9cc56c68fa969b6e22a86c9388f7b82433babf648",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-12-18T08:11:59Z",
    "title_canon_sha256": "54eb03f4ce4b569aa7e09f47176f1b60f88a43678a109a7cae1c39b1c3b42212"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4135",
    "kind": "arxiv",
    "version": 1
  }
}