Pith Number

pith:4UKRJ44T

pith:2012:4UKRJ44TBGZXL6X24CZBMPIIV4

not attested not anchored not stored refs pending

Reliable communication over non-binary insertion/deletion channels

Masoud Ardakani, Raman Yazdani

arxiv:1204.3238 v1 · 2012-04-15 · 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{4UKRJ44TBGZXL6X24CZBMPIIV4}

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	2026-05-18T03:57:52.154833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e51514f39309b375fafae0b2163d08af1ee6325a888a912e6758806057600d53

Aliases

arxiv: 1204.3238 · arxiv_version: 1204.3238v1 · doi: 10.48550/arxiv.1204.3238 · pith_short_12: 4UKRJ44TBGZX · pith_short_16: 4UKRJ44TBGZXL6X2 · pith_short_8: 4UKRJ44T

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/4UKRJ44TBGZXL6X24CZBMPIIV4 \
  | 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: e51514f39309b375fafae0b2163d08af1ee6325a888a912e6758806057600d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9a26ce14a7d06614f20935b5d621ff950f7bdd542f16dcc383bbf57777ab7d2",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-15T05:43:28Z",
    "title_canon_sha256": "a8d14cd38923136a4d86f5cbe125115893481b88c94877726b166461bba6c092"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3238",
    "kind": "arxiv",
    "version": 1
  }
}