Pith Number

pith:XVMS6EOY

pith:2011:XVMS6EOYGL5267P4SYSBJ7XGFK

not attested not anchored not stored refs pending

Exploring New Directions in Iris Recognition

Nicolaie Popescu-Bodorin

arxiv:1107.2696 v1 · 2011-07-13 · 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{XVMS6EOYGL5267P4SYSBJ7XGFK}

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	2026-05-18T04:18:15.805295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd592f11d832fbaf7dfc962414fee62a813cc0bad8825553539e741c3b246c35

Aliases

arxiv: 1107.2696 · arxiv_version: 1107.2696v1 · doi: 10.48550/arxiv.1107.2696 · pith_short_12: XVMS6EOYGL52 · pith_short_16: XVMS6EOYGL5267P4 · pith_short_8: XVMS6EOY

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/XVMS6EOYGL5267P4SYSBJ7XGFK \
  | 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: bd592f11d832fbaf7dfc962414fee62a813cc0bad8825553539e741c3b246c35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf9f8f0e7c0df5896abcc20dece442d6d4b944dc316d72bcde81aaa148965532",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-07-13T23:18:57Z",
    "title_canon_sha256": "a344c6eb6046c42ca5da897d1a6bf41c014d7aaf90f405367a5a813a415e252a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2696",
    "kind": "arxiv",
    "version": 1
  }
}