Pith Number

pith:LE2SJO5T

pith:2026:LE2SJO5TZ5ARBM7HTMMZMORTLG

not attested not anchored not stored refs pending

The tau functions of the constrained CKP hierarchy

Danqi Chen, Jipeng Cheng, Shen Wang

arxiv:2605.17794 v1 · 2026-05-18 · 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{LE2SJO5TZ5ARBM7HTMMZMORTLG}

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	2026-05-20T00:04:58.654593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

593524bbb3cf4110b3e79b19963a33598fbffaa602f0612e11ffcc942776dc3b

Aliases

arxiv: 2605.17794 · arxiv_version: 2605.17794v1 · doi: 10.48550/arxiv.2605.17794 · pith_short_12: LE2SJO5TZ5AR · pith_short_16: LE2SJO5TZ5ARBM7H · pith_short_8: LE2SJO5T

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/LE2SJO5TZ5ARBM7HTMMZMORTLG \
  | 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: 593524bbb3cf4110b3e79b19963a33598fbffaa602f0612e11ffcc942776dc3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8689612d5b533ecb8e4024700a6cb5029d2181d80693ddc30bc9d65c41d4d99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2026-05-18T03:19:44Z",
    "title_canon_sha256": "ece432c978d2f3cdc1af65329bcc22555102ed57e51678c02b14c262578af4c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17794",
    "kind": "arxiv",
    "version": 1
  }
}