Pith Number

pith:IPHCQPHI

pith:2011:IPHCQPHISDAV7YTPHU6WPKSHZL

not attested not anchored not stored refs pending

Perfectly secure encryption of individual sequences

Neri Merhav

arxiv:1112.2262 v2 · 2011-12-10 · 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{IPHCQPHISDAV7YTPHU6WPKSHZL}

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	2026-05-18T04:05:03.327253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43ce283ce890c15fe26f3d3d67aa47cad07d86ecbf57035dd676cdee103ff349

Aliases

arxiv: 1112.2262 · arxiv_version: 1112.2262v2 · doi: 10.48550/arxiv.1112.2262 · pith_short_12: IPHCQPHISDAV · pith_short_16: IPHCQPHISDAV7YTP · pith_short_8: IPHCQPHI

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/IPHCQPHISDAV7YTPHU6WPKSHZL \
  | 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: 43ce283ce890c15fe26f3d3d67aa47cad07d86ecbf57035dd676cdee103ff349

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fd376be76c1835e8b774d63895f22ddcee4084223795fe095b3d16e03735cf5",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-12-10T09:11:02Z",
    "title_canon_sha256": "b267ed247158b711f2f8394da95098093175fd616cfe334876099cfc5538255a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2262",
    "kind": "arxiv",
    "version": 2
  }
}