Pith Number

pith:A6UTWKGC

pith:2026:A6UTWKGCV7SYEGUREYMZXN7MIA

not attested not anchored not stored refs pending

One-dimensional first return maps for the two-dimensional border-collision normal form with a zero determinant

David J.W. Simpson

arxiv:2606.08901 v1 · 2026-06-08 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A6UTWKGCV7SYEGUREYMZXN7MIA}

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	2026-06-09T02:07:46.288661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07a93b28c2afe5821a9126199bb7ec402e01310ebbde283264a790927c39ceee

Aliases

arxiv: 2606.08901 · arxiv_version: 2606.08901v1 · doi: 10.48550/arxiv.2606.08901 · pith_short_12: A6UTWKGCV7SY · pith_short_16: A6UTWKGCV7SYEGUR · pith_short_8: A6UTWKGC

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/A6UTWKGCV7SYEGUREYMZXN7MIA \
  | 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: 07a93b28c2afe5821a9126199bb7ec402e01310ebbde283264a790927c39ceee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12b6da34e4736eefb0d61255576c75d2f75cea0423215e2f83a83d37ad6a6832",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2026-06-08T01:00:05Z",
    "title_canon_sha256": "08bd7526dcea19f7f680ebbded0036ff8d136d2ec51ee776318e83bd63bc7307"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.08901",
    "kind": "arxiv",
    "version": 1
  }
}