Pith Number

pith:NCHDQO4K

pith:2017:NCHDQO4KLBAM5WDTUDGMBHCB4Y

not attested not anchored not stored refs pending

Efficient Image Set Classification using Linear Regression based Image Reconstruction

Ferdous Sohel, Mohammed Bennamoun, Roberto Togneri, Syed Afaq Ali Shah, Uzair Nadeem

arxiv:1701.02485 v1 · 2017-01-10 · 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{NCHDQO4KLBAM5WDTUDGMBHCB4Y}

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	2026-05-18T00:53:04.146156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

688e383b8a5840ced873a0ccc09c41e61daf605cb4b7e91a2d8d91b55fe85517

Aliases

arxiv: 1701.02485 · arxiv_version: 1701.02485v1 · doi: 10.48550/arxiv.1701.02485 · pith_short_12: NCHDQO4KLBAM · pith_short_16: NCHDQO4KLBAM5WDT · pith_short_8: NCHDQO4K

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/NCHDQO4KLBAM5WDTUDGMBHCB4Y \
  | 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: 688e383b8a5840ced873a0ccc09c41e61daf605cb4b7e91a2d8d91b55fe85517

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff0aebaf0997e8dc318c6a75291bf916d14045b4e06db0fba1fdd413461c6127",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-10T09:17:29Z",
    "title_canon_sha256": "f9ece254e776f90f4fe9d8ccf42f68030f3a615a79acb3c2fffefa28a52e2676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02485",
    "kind": "arxiv",
    "version": 1
  }
}