Pith Number

pith:NWH2KZID

pith:2018:NWH2KZIDA3MTOBS2BMKVXHGXZ2

not attested not anchored not stored refs pending

Detecting discrete integrability: the singularity approach

Alfred Ramani, Basil Grammaticos, Ralph Willox, Takafumi Mase

arxiv:1809.00853 v1 · 2018-09-04 · math-ph · math.MP · 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{NWH2KZIDA3MTOBS2BMKVXHGXZ2}

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	2026-05-18T00:06:15.830700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d8fa5650306d937065a0b155b9cd7ce9a6bd5075be49d03e0b52e0c0de40592

Aliases

arxiv: 1809.00853 · arxiv_version: 1809.00853v1 · doi: 10.48550/arxiv.1809.00853 · pith_short_12: NWH2KZIDA3MT · pith_short_16: NWH2KZIDA3MTOBS2 · pith_short_8: NWH2KZID

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/NWH2KZIDA3MTOBS2BMKVXHGXZ2 \
  | 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: 6d8fa5650306d937065a0b155b9cd7ce9a6bd5075be49d03e0b52e0c0de40592

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "050ca2338e3cc5474213dc9102735b3a3df8c2fa4926b2062e2169f83cba1bb6",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-09-04T09:20:51Z",
    "title_canon_sha256": "d0d9af3a06384367640d9e507a20bec06f36c4e21e8575a9efe627760434b22b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00853",
    "kind": "arxiv",
    "version": 1
  }
}