Pith Number

pith:WZ2RE53T

pith:2018:WZ2RE53TCB35EXK7YHKIQS5F7X

not attested not anchored not stored refs pending

Deep Face Image Retrieval: a Comparative Study with Dictionary Learning

Ahmad B. A. Hassanat, Ahmad S. Tarawneh, Ceyhun Celik, Chaman Verma, Dmitry Chetverikov, M. Sohel Rahman

arxiv:1812.05490 v1 · 2018-12-13 · 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{WZ2RE53TCB35EXK7YHKIQS5F7X}

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	2026-05-17T23:58:20.117722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6751277731077d25d5fc1d4884ba5fdf48f913aef513afa76c29e851e01def2

Aliases

arxiv: 1812.05490 · arxiv_version: 1812.05490v1 · doi: 10.48550/arxiv.1812.05490 · pith_short_12: WZ2RE53TCB35 · pith_short_16: WZ2RE53TCB35EXK7 · pith_short_8: WZ2RE53T

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/WZ2RE53TCB35EXK7YHKIQS5F7X \
  | 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: b6751277731077d25d5fc1d4884ba5fdf48f913aef513afa76c29e851e01def2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a52a5ad53101ae0f5ff3527bdb6e5b48e9f238916d28ccf5bece873cf30087b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-12-13T15:58:02Z",
    "title_canon_sha256": "45f509b709bb994e2d4251bab61811281b41cd6aa4cb60af392b2de415991f2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05490",
    "kind": "arxiv",
    "version": 1
  }
}