Pith Number

pith:Q4ERBOM2

pith:2007:Q4ERBOM2YW5ZKHW2GVLUT2STP6

not attested not anchored not stored refs pending

Coding Solutions for the Secure Biometric Storage Problem

Davide Schipani, Joachim Rosenthal

arxiv:cs/0701102 v3 · 2007-01-16 · cs.IT · cs.CR · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4ERBOM2YW5ZKHW2GVLUT2STP6}

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	2026-05-18T04:14:27.891436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

870910b99ac5bb951eda355749ea537fbc221160a9adad2e416360f9e6ebab5d

Aliases

arxiv: cs/0701102 · arxiv_version: cs/0701102v3 · doi: 10.48550/arxiv.cs/0701102 · pith_short_12: Q4ERBOM2YW5Z · pith_short_16: Q4ERBOM2YW5ZKHW2 · pith_short_8: Q4ERBOM2

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/Q4ERBOM2YW5ZKHW2GVLUT2STP6 \
  | 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: 870910b99ac5bb951eda355749ea537fbc221160a9adad2e416360f9e6ebab5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54743ddabeb2cf2537967aef967a57b879ffbc74236b51d8769c5e25cbadfc8e",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2007-01-16T23:22:41Z",
    "title_canon_sha256": "fb28b4ced1aa065a990119aaba25185fc22afcbd06d64de81900975cf1c7084e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0701102",
    "kind": "arxiv",
    "version": 3
  }
}