Pith Number

pith:RTKU2UDJ

pith:2011:RTKU2UDJMXQX5VE34KR2WEM3YJ

not attested not anchored not stored refs pending

A note on the extended dToda hierarchy

Ming-Hsien Tu, Niann-Chern Lee

arxiv:1112.4569 v1 · 2011-12-20 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RTKU2UDJMXQX5VE34KR2WEM3YJ}

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	2026-05-18T04:05:58.515045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cd54d506965e17ed49be2a3ab119bc25c6995c450176797e1f5968e72bc8466

Aliases

arxiv: 1112.4569 · arxiv_version: 1112.4569v1 · doi: 10.48550/arxiv.1112.4569 · pith_short_12: RTKU2UDJMXQX · pith_short_16: RTKU2UDJMXQX5VE3 · pith_short_8: RTKU2UDJ

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/RTKU2UDJMXQX5VE34KR2WEM3YJ \
  | 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: 8cd54d506965e17ed49be2a3ab119bc25c6995c450176797e1f5968e72bc8466

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "560921859e19bf152fc805dc9b31ab3928abd8a9bba7b9b2fea68a2354329a9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2011-12-20T04:51:37Z",
    "title_canon_sha256": "d928a5a21c28ae8d7e07d0aa6f854ce8d07f0a908f779efc9ca4b3b1127b15fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4569",
    "kind": "arxiv",
    "version": 1
  }
}