Pith Number

pith:2SIGJ3K7

pith:2019:2SIGJ3K75NO4X6WT7JHQRA6BJD

not attested not anchored not stored refs pending

Nonlocal symmetries and exact solutions of the (2+1)-dimensional generalised variable coefficient shallow water wave equation

Hanze Liu, Linlin Zhang, Xiangpeng Xin, Yarong Xia

arxiv:1901.07307 v1 · 2019-01-22 · 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{2SIGJ3K75NO4X6WT7JHQRA6BJD}

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	2026-05-17T23:55:47.402211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49064ed5feb5dcbfad3fa4f0883c148d179f1b7011a32c516ff3d86dd8e2b2e

Aliases

arxiv: 1901.07307 · arxiv_version: 1901.07307v1 · doi: 10.48550/arxiv.1901.07307 · pith_short_12: 2SIGJ3K75NO4 · pith_short_16: 2SIGJ3K75NO4X6WT · pith_short_8: 2SIGJ3K7

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/2SIGJ3K75NO4X6WT7JHQRA6BJD \
  | 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: d49064ed5feb5dcbfad3fa4f0883c148d179f1b7011a32c516ff3d86dd8e2b2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c5ef1a8b163df658d0a2f811b237018b32598143dbda1e39f9496c0e5abd6b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2019-01-22T14:09:49Z",
    "title_canon_sha256": "a1f03c390932e0fc821541f42eacdba827295c50ae9977dac8f61d7e89a801b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07307",
    "kind": "arxiv",
    "version": 1
  }
}