Pith Number

pith:DIW65X5H

pith:2012:DIW65X5H62EO37KMJTEWLRP4TF

not attested not anchored not stored refs pending

The algebro-geometric solutions for Degasperis-Procesi hierarchy

Engui Fan, Peng Zhao, Yu Hou, Zhijun Qiao

arxiv:1204.2140 v4 · 2012-04-10 · 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{DIW65X5H62EO37KMJTEWLRP4TF}

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	2026-05-18T03:40:03.083833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a2deedfa7f688edfd4c4cc965c5fc9960666257340580a17c2f8a2eb7c351f0

Aliases

arxiv: 1204.2140 · arxiv_version: 1204.2140v4 · doi: 10.48550/arxiv.1204.2140 · pith_short_12: DIW65X5H62EO · pith_short_16: DIW65X5H62EO37KM · pith_short_8: DIW65X5H

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/DIW65X5H62EO37KMJTEWLRP4TF \
  | 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: 1a2deedfa7f688edfd4c4cc965c5fc9960666257340580a17c2f8a2eb7c351f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ce872f0d22aa63b24ba55fc1230e7c9e9d88b7b50432968e15a339814131011",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-04-10T13:21:19Z",
    "title_canon_sha256": "eb15dec24580309b296f8b83da27117a37a5cb00354c654df3cc57a7361125ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2140",
    "kind": "arxiv",
    "version": 4
  }
}