Pith Number

pith:WB7JAO4N

pith:2011:WB7JAO4NTL5YYSHNHP6GHXAFGZ

not attested not anchored not stored refs pending

Turing machines on represented sets, a model of computation for Analysis

Germany), Hagen, Iran), Klaus Weihrauch (University of Hagen, Nazanin Tavana (AmirKabir University, Tehran

arxiv:1105.3335 v2 · 2011-05-17 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WB7JAO4NTL5YYSHNHP6GHXAFGZ}

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	2026-05-18T01:37:39.489211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b07e903b8d9afb8c48ed3bfc63dc053660b19fd2220ac0018c6dc382c42a5289

Aliases

arxiv: 1105.3335 · arxiv_version: 1105.3335v2 · doi: 10.48550/arxiv.1105.3335 · pith_short_12: WB7JAO4NTL5Y · pith_short_16: WB7JAO4NTL5YYSHN · pith_short_8: WB7JAO4N

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/WB7JAO4NTL5YYSHNHP6GHXAFGZ \
  | 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: b07e903b8d9afb8c48ed3bfc63dc053660b19fd2220ac0018c6dc382c42a5289

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0717a0ccef3eea275bc10e8771b38a42bbba0afdf947a61f3307a2eed0dec509",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2011-05-17T10:43:04Z",
    "title_canon_sha256": "d68e1494e84cb8a7ebab3d0c6e3da250027e426a090d12f0054b5439635b3b59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3335",
    "kind": "arxiv",
    "version": 2
  }
}