Pith Number

pith:PQUM3R2Q

pith:2000:PQUM3R2QTJT5IE4GWG4ZA622GF

not attested not anchored not stored refs pending

A simple model for the formation of vegetated dunes

Hiraku Nishimori, Hirohisa Tanaka

arxiv:nlin/0007029 v1 · 2000-07-21 · nlin.PS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQUM3R2QTJT5IE4GWG4ZA622GF}

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	2026-05-18T01:38:22.069138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c28cdc7509a67d41386b1b9907b5a315494756aaf4c24eebb82c6a6643b615f

Aliases

arxiv: nlin/0007029 · arxiv_version: nlin/0007029v1 · doi: 10.48550/arxiv.nlin/0007029 · pith_short_12: PQUM3R2QTJT5 · pith_short_16: PQUM3R2QTJT5IE4G · pith_short_8: PQUM3R2Q

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/PQUM3R2QTJT5IE4GWG4ZA622GF \
  | 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: 7c28cdc7509a67d41386b1b9907b5a315494756aaf4c24eebb82c6a6643b615f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2faf8837a5a065a04d27e02819facfbae3fd99f7fab48be09f47c6c940c2e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.PS",
    "submitted_at": "2000-07-21T11:04:57Z",
    "title_canon_sha256": "c6023971c3ed92c2936ac62a1942979c661b80c14c18fd6a55a97f74a635a7ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/0007029",
    "kind": "arxiv",
    "version": 1
  }
}