Pith Number

pith:R74IGAKR

pith:2017:R74IGAKR73WIHZZRHVRSV66ABH

not attested not anchored not stored refs pending

Color Face Recognition using High-Dimension Quaternion-based Adaptive Representation

Qingxiang Feng, Yicong Zhou

arxiv:1712.01642 v1 · 2017-11-19 · 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{R74IGAKR73WIHZZRHVRSV66ABH}

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	2026-05-18T00:28:48.058139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ff8830151feec83e7313d632afbc009fb3006713cd6a4fef35d517c49b27993

Aliases

arxiv: 1712.01642 · arxiv_version: 1712.01642v1 · doi: 10.48550/arxiv.1712.01642 · pith_short_12: R74IGAKR73WI · pith_short_16: R74IGAKR73WIHZZR · pith_short_8: R74IGAKR

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/R74IGAKR73WIHZZRHVRSV66ABH \
  | 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: 8ff8830151feec83e7313d632afbc009fb3006713cd6a4fef35d517c49b27993

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "209adec9de133661e04135e374d5736390b32343f1b0f74f086f8683d30875e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-11-19T06:15:59Z",
    "title_canon_sha256": "2df7549d9d9e604f3f0cb51b724049e8e7d3a1f7162c5e147210ab55bb47754a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01642",
    "kind": "arxiv",
    "version": 1
  }
}