Pith Number

pith:3MHIVAQ7

pith:2010:3MHIVAQ7JHZUZKK6BDX6PM2WC5

not attested not anchored not stored refs pending

The Complexity of Proving Chaoticity and the Church-Turing Thesis

Cristian S. Calude, Elena Calude, Karl Svozil

arxiv:1006.2951 v2 · 2010-06-15 · nlin.CD · cs.CC · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3MHIVAQ7JHZUZKK6BDX6PM2WC5}

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	2026-05-18T04:40:09.322325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db0e8a821f49f34ca95e08efe7b3561758195b300e3e998855ac57125ec30ae7

Aliases

arxiv: 1006.2951 · arxiv_version: 1006.2951v2 · doi: 10.48550/arxiv.1006.2951 · pith_short_12: 3MHIVAQ7JHZU · pith_short_16: 3MHIVAQ7JHZUZKK6 · pith_short_8: 3MHIVAQ7

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/3MHIVAQ7JHZUZKK6BDX6PM2WC5 \
  | 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: db0e8a821f49f34ca95e08efe7b3561758195b300e3e998855ac57125ec30ae7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b73519f852b0888fe6b6862b0e58bf708832934458792021bfb6f665f5819d6",
    "cross_cats_sorted": [
      "cs.CC",
      "physics.gen-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2010-06-15T10:39:57Z",
    "title_canon_sha256": "9ece72e99097bfde9552b3418f8ec70962be71820bf7bb922674592a04c1abc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.2951",
    "kind": "arxiv",
    "version": 2
  }
}