Pith Number

pith:3I4BPFSP

pith:2013:3I4BPFSPHZRJVXPWSROOICLRRB

not attested not anchored not stored refs pending

Towards the classification of integrable differential-difference equations in 2 + 1 dimensions

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

arxiv:1303.3430 v1 · 2013-03-14 · 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{3I4BPFSPHZRJVXPWSROOICLRRB}

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	2026-05-18T01:51:07.421173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da3817964f3e629addf6945ce4097188774eb22a4a91e7e1dc23500aac95113a

Aliases

arxiv: 1303.3430 · arxiv_version: 1303.3430v1 · doi: 10.48550/arxiv.1303.3430 · pith_short_12: 3I4BPFSPHZRJ · pith_short_16: 3I4BPFSPHZRJVXPW · pith_short_8: 3I4BPFSP

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/3I4BPFSPHZRJVXPWSROOICLRRB \
  | 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: da3817964f3e629addf6945ce4097188774eb22a4a91e7e1dc23500aac95113a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "360c5bdb8f484a9dbf42a1837cb75310b53a7eac83944df7223e9a1c21c9c8ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2013-03-14T12:59:07Z",
    "title_canon_sha256": "7804a484690d2dd7fbf471f9c2a3df9aa56be6917259f38c0918f092ce89e1a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3430",
    "kind": "arxiv",
    "version": 1
  }
}