Pith Number

pith:VVKKVHEU

pith:2013:VVKKVHEUS2RYISOEO34DONMRZA

not attested not anchored not stored refs pending

Robust Periocular Recognition By Fusing Sparse Representations of Color and Geometry Information

Gil Santos, Hugo Proenca, Juan C. Moreno, V. B. S. Prasath

arxiv:1309.2752 v1 · 2013-09-11 · 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{VVKKVHEUS2RYISOEO34DONMRZA}

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	2026-05-18T01:36:21.032700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad54aa9c9496a38449c476f8373591c82325293cae5df008f78c167d347a04ea

Aliases

arxiv: 1309.2752 · arxiv_version: 1309.2752v1 · doi: 10.48550/arxiv.1309.2752 · pith_short_12: VVKKVHEUS2RY · pith_short_16: VVKKVHEUS2RYISOE · pith_short_8: VVKKVHEU

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/VVKKVHEUS2RYISOEO34DONMRZA \
  | 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: ad54aa9c9496a38449c476f8373591c82325293cae5df008f78c167d347a04ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81338c43d37013e62820dfcb32ec0f9329a7282029f98a6d12503fd825e23ffd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-09-11T08:11:14Z",
    "title_canon_sha256": "f9ed0287db1d0a69a7d0bd63f414a52abbd332de8f5144b4fed10ce51e25be0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2752",
    "kind": "arxiv",
    "version": 1
  }
}