Pith Number

pith:K7ZWXW32

pith:2009:K7ZWXW32NNLC6EIOUBGUXAOHE2

not attested not anchored not stored refs pending

Randomness Efficient Steganography

Aggelos Kiayias, Alexander Russell, Narasimha Shashidhar

arxiv:0909.4575 v2 · 2009-09-24 · cs.CR · 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{K7ZWXW32NNLC6EIOUBGUXAOHE2}

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	2026-05-18T04:03:17.789535Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f36bdb7a6b562f110ea04d4b81c72690b0b1de32951d697944819c35c4bf90

Aliases

arxiv: 0909.4575 · arxiv_version: 0909.4575v2 · doi: 10.48550/arxiv.0909.4575 · pith_short_12: K7ZWXW32NNLC · pith_short_16: K7ZWXW32NNLC6EIO · pith_short_8: K7ZWXW32

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/K7ZWXW32NNLC6EIOUBGUXAOHE2 \
  | 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: 57f36bdb7a6b562f110ea04d4b81c72690b0b1de32951d697944819c35c4bf90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd5180afddb8c9873bdb9f4402e07611b9bf2c02e39b5c53d16df82445678f3e",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2009-09-24T23:47:05Z",
    "title_canon_sha256": "0ecdd37b5ea10d689aee6448aac997f939d4e12737f8adc37c3661038ce9bca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.4575",
    "kind": "arxiv",
    "version": 2
  }
}