Pith Number

pith:3IU4IYRY

pith:2018:3IU4IYRYKU5XIJC6SBRB7WEZNZ

not attested not anchored not stored refs pending

Pattern Formation in a Slowly Flattening Spherical Cap: Delayed Bifurcation

Colin B. Macdonald, Laurent Charette, Wayne Nagata

arxiv:1810.04702 v1 · 2018-10-10 · math.DS · 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{3IU4IYRYKU5XIJC6SBRB7WEZNZ}

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	2026-05-18T00:03:36.143198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da29c46238553b74245e90621fd8996e5c69b157a2e30d1d0765f30f92ad69ce

Aliases

arxiv: 1810.04702 · arxiv_version: 1810.04702v1 · doi: 10.48550/arxiv.1810.04702 · pith_short_12: 3IU4IYRYKU5X · pith_short_16: 3IU4IYRYKU5XIJC6 · pith_short_8: 3IU4IYRY

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/3IU4IYRYKU5XIJC6SBRB7WEZNZ \
  | 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: da29c46238553b74245e90621fd8996e5c69b157a2e30d1d0765f30f92ad69ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81e99f54a7403e4507ff1d8212f5bbd1951d805edaa75addf34e554153213ef3",
    "cross_cats_sorted": [
      "nlin.PS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2018-10-10T18:44:33Z",
    "title_canon_sha256": "154442511358da77e03e926370b184ba288111bec3902f397b2473ce04f39cc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04702",
    "kind": "arxiv",
    "version": 1
  }
}