Pith Number

pith:G6I67KZI

pith:2019:G6I67KZIOAN324G5MZ6PXR2P2Y

not attested not anchored not stored refs pending

Riemann-Hilbert problem, integrability and reductions

Aleksander A. Stefanov, Rossen I. Ivanov, Vladimir S. Gerdjikov

arxiv:1902.10276 v2 · 2019-02-27 · 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{G6I67KZIOAN324G5MZ6PXR2P2Y}

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	2026-05-17T23:45:25.777483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3791efab28701bbd70dd667cfbc74fd619ffe85742bb8149ad8be84f9bcbc4ad

Aliases

arxiv: 1902.10276 · arxiv_version: 1902.10276v2 · doi: 10.48550/arxiv.1902.10276 · pith_short_12: G6I67KZIOAN3 · pith_short_16: G6I67KZIOAN324G5 · pith_short_8: G6I67KZI

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/G6I67KZIOAN324G5MZ6PXR2P2Y \
  | 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: 3791efab28701bbd70dd667cfbc74fd619ffe85742bb8149ad8be84f9bcbc4ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abb8f5d99428896026f83c8a66519c8c8fbb3bfe7b239d2f82dcd5f14855df54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2019-02-27T00:30:43Z",
    "title_canon_sha256": "d5e3f137b6d3cb7e57d59cd8094835b29f1a51a6b617d03a347d0e2a3bd690b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10276",
    "kind": "arxiv",
    "version": 2
  }
}