Pith Number

pith:7E2ON7QN

pith:2014:7E2ON7QNMXZ2HRZLON5RKZDV5Y

not attested not anchored not stored refs pending

Multi-user guesswork and brute force security

Flavio du Pin Calmon, Ken R. Duffy, Mark M. Christiansen, Muriel Medard

arxiv:1405.5024 v4 · 2014-05-20 · cs.IT · 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{7E2ON7QNMXZ2HRZLON5RKZDV5Y}

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	2026-05-18T00:38:44.302126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f934e6fe0d65f3a3c72b737b156475ee2f7f9ad409ba13503744b898c719ca54

Aliases

arxiv: 1405.5024 · arxiv_version: 1405.5024v4 · doi: 10.48550/arxiv.1405.5024 · pith_short_12: 7E2ON7QNMXZ2 · pith_short_16: 7E2ON7QNMXZ2HRZL · pith_short_8: 7E2ON7QN

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/7E2ON7QNMXZ2HRZLON5RKZDV5Y \
  | 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: f934e6fe0d65f3a3c72b737b156475ee2f7f9ad409ba13503744b898c719ca54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "998bfef1a8877d9060611efa338d7675526ae63b142a4542e357638609777e2b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-05-20T10:27:27Z",
    "title_canon_sha256": "429a8a92983820b83b78c7b44ca051bbdbbe5cf21eed0ce4c54dce4a85ab6aa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.5024",
    "kind": "arxiv",
    "version": 4
  }
}