Pith Number

pith:SARRIFWJ

pith:2013:SARRIFWJHXBFHEXKIFHIJIFAXC

not attested not anchored not stored refs pending

The Kraft sum as a monotone function on the refinement-ordered set of uniquely decipherable codes

Stephan Foldes

arxiv:1305.4141 v2 · 2013-05-17 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SARRIFWJHXBFHEXKIFHIJIFAXC}

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	2026-05-17T23:40:05.149030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90231416c93dc25392ea414e84a0a0b883c20cb29c367bedc90e54eabc9c57cf

Aliases

arxiv: 1305.4141 · arxiv_version: 1305.4141v2 · doi: 10.48550/arxiv.1305.4141 · pith_short_12: SARRIFWJHXBF · pith_short_16: SARRIFWJHXBFHEXK · pith_short_8: SARRIFWJ

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/SARRIFWJHXBFHEXKIFHIJIFAXC \
  | 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: 90231416c93dc25392ea414e84a0a0b883c20cb29c367bedc90e54eabc9c57cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c82e968842a2cf1a549065f3538b2193e62451e361986a0678c5707da445c8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-05-17T17:49:27Z",
    "title_canon_sha256": "4a29f6aff670d3bd67322beaa797fc6de74695a2acd6f472da274d141ccc8ab6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4141",
    "kind": "arxiv",
    "version": 2
  }
}