Pith Number

pith:64IKY37Y

pith:2010:64IKY37YMX7JPHWEJVP4L5DYEZ

not attested not anchored not stored refs pending

N^N^N does not satisfy Normann's condition

Matthias Schroeder

arxiv:1010.2396 v1 · 2010-10-12 · math.LO · cs.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{64IKY37YMX7JPHWEJVP4L5DYEZ}

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	2026-05-18T04:39:28.080794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f710ac6ff865fe979ec44d5fc5f4782671d60d655570f9b313de19e7a0136ca6

Aliases

arxiv: 1010.2396 · arxiv_version: 1010.2396v1 · doi: 10.48550/arxiv.1010.2396 · pith_short_12: 64IKY37YMX7J · pith_short_16: 64IKY37YMX7JPHWE · pith_short_8: 64IKY37Y

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/64IKY37YMX7JPHWEJVP4L5DYEZ \
  | 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: f710ac6ff865fe979ec44d5fc5f4782671d60d655570f9b313de19e7a0136ca6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06ab656f8b41c6a672153f685bac09662f3489c1c6139ef836e20f66ef5bdeab",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-10-12T14:15:08Z",
    "title_canon_sha256": "57c152cfd1d9db73054dd868c3d06c283d6500b35593e87bc5a6dd8fe8ebd846"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.2396",
    "kind": "arxiv",
    "version": 1
  }
}