Pith Number

pith:N6K2KQL3

pith:2003:N6K2KQL3US5UCEMRQN4S7YJJKI

not attested not anchored not stored refs pending

Hydrodynamic reductions of multi-dimensional dispersionless PDEs: the test for integrability

E.V. Ferapontov, K.R. Khusnutdinova

arxiv:nlin/0312015 v1 · 2003-12-07 · 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{N6K2KQL3US5UCEMRQN4S7YJJKI}

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	2026-05-18T01:38:19.171992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f95a5417ba4bb41119183792fe1295233df80c39499d58ff6ee2e3413c4bcf9

Aliases

arxiv: nlin/0312015 · arxiv_version: nlin/0312015v1 · doi: 10.48550/arxiv.nlin/0312015 · pith_short_12: N6K2KQL3US5U · pith_short_16: N6K2KQL3US5UCEMR · pith_short_8: N6K2KQL3

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/N6K2KQL3US5UCEMRQN4S7YJJKI \
  | 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: 6f95a5417ba4bb41119183792fe1295233df80c39499d58ff6ee2e3413c4bcf9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34bc84600d1a961608a7a658aa94b31337e4bcd80efed1afcd4739af0f4c64c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "2003-12-07T13:57:28Z",
    "title_canon_sha256": "9997363a66711a4db4aa7d0437197a5f9f6358b2b74a6bcf2cca84bd8bc95a05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0312015",
    "kind": "arxiv",
    "version": 1
  }
}