Pith Number

pith:ZNOTZYMU

pith:2012:ZNOTZYMU56JPT6CUVAFGJHMWW3

not attested not anchored not stored refs pending

Tau function of the CKP hierarchy and non-linearizable Virasoro symmetries

Chao-Zhong Wu, Liang Chang

arxiv:1208.1374 v2 · 2012-08-07 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNOTZYMU56JPT6CUVAFGJHMWW3}

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	2026-05-18T01:55:22.283897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb5d3ce194ef92f9f854a80a649d96b6e9014a0db2436b907fe0305ddc9ff460

Aliases

arxiv: 1208.1374 · arxiv_version: 1208.1374v2 · doi: 10.48550/arxiv.1208.1374 · pith_short_12: ZNOTZYMU56JP · pith_short_16: ZNOTZYMU56JPT6CU · pith_short_8: ZNOTZYMU

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/ZNOTZYMU56JPT6CUVAFGJHMWW3 \
  | 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: cb5d3ce194ef92f9f854a80a649d96b6e9014a0db2436b907fe0305ddc9ff460

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c1495c8fac5e39ac037785c8d4c8edd5dc2eab2640beb816a1c3a157196d980",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-08-07T09:07:59Z",
    "title_canon_sha256": "e478f38a841133ebaad60e5025b55ddc030f2a1e0d2b903433926e06219e4c81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1374",
    "kind": "arxiv",
    "version": 2
  }
}