Pith Number

pith:JH4NGB2G

pith:2021:JH4NGB2GUBDDKXG4RLDUY7RAEG

not attested not anchored not stored refs pending

Biometrics: Trust, but Verify

Anil K. Jain, Debayan Deb, Joshua J. Engelsma

arxiv:2105.06625 v2 · 2021-05-14 · 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{JH4NGB2GUBDDKXG4RLDUY7RAEG}

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	2026-07-05T02:44:37.501934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49f8d30746a046355cdc8ac74c7e20219d3918388935c9be08eeaddecd3aeb33

Aliases

arxiv: 2105.06625 · arxiv_version: 2105.06625v2 · doi: 10.48550/arxiv.2105.06625 · pith_short_12: JH4NGB2GUBDD · pith_short_16: JH4NGB2GUBDDKXG4 · pith_short_8: JH4NGB2G

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/JH4NGB2GUBDDKXG4RLDUY7RAEG \
  | 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: 49f8d30746a046355cdc8ac74c7e20219d3918388935c9be08eeaddecd3aeb33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc559948f08d6ed7547006765bd852487ff5692e31c19a89bee7b04083f05491",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-05-14T03:07:25Z",
    "title_canon_sha256": "06b6aef183d51e6607dacc05c52c55306ef5be051d2b6a9ac8c5873dca69bc86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.06625",
    "kind": "arxiv",
    "version": 2
  }
}