Pith Number

pith:NA25IABG

pith:2013:NA25IABGFC76KPU6ZP3BN2WAJQ

not attested not anchored not stored refs pending

On the classification of discrete Hirota-type equations in 3D

E.V. Ferapontov, I. Roustemoglou, V.S. Novikov

arxiv:1312.1574 v1 · 2013-12-05 · 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{NA25IABGFC76KPU6ZP3BN2WAJQ}

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	2026-05-18T03:05:26.872627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6835d4002628bfe53e9ecbf616eac04c073b9dc65033a487a30e3ad3bcfdb06f

Aliases

arxiv: 1312.1574 · arxiv_version: 1312.1574v1 · doi: 10.48550/arxiv.1312.1574 · pith_short_12: NA25IABGFC76 · pith_short_16: NA25IABGFC76KPU6 · pith_short_8: NA25IABG

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/NA25IABGFC76KPU6ZP3BN2WAJQ \
  | 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: 6835d4002628bfe53e9ecbf616eac04c073b9dc65033a487a30e3ad3bcfdb06f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c16e9bd83fb017823d3544a6c54d7428644d287cc12f108aaa27c7ead3d63576",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-12-05T15:15:54Z",
    "title_canon_sha256": "1bbd18c9c14b6e5474c9192d63dcd6085f4db48969c993acf09adff6ae324e72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1574",
    "kind": "arxiv",
    "version": 1
  }
}