Pith Number

pith:P6C2UYXQ

pith:2011:P6C2UYXQ2FRSVAEJUPI7EY3JAF

not attested not anchored not stored refs pending

Iteration of quasiregular tangent functions in three dimensions

Alastair N. Fletcher, Daniel A. Nicks

arxiv:1112.3589 v1 · 2011-12-15 · math.DS · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6C2UYXQ2FRSVAEJUPI7EY3JAF}

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	2026-05-18T04:06:18.224085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f85aa62f0d1632a8089a3d1f26369014836b9f22d642ade2026a6861e1506cc

Aliases

arxiv: 1112.3589 · arxiv_version: 1112.3589v1 · doi: 10.48550/arxiv.1112.3589 · pith_short_12: P6C2UYXQ2FRS · pith_short_16: P6C2UYXQ2FRSVAEJ · pith_short_8: P6C2UYXQ

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/P6C2UYXQ2FRSVAEJUPI7EY3JAF \
  | 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: 7f85aa62f0d1632a8089a3d1f26369014836b9f22d642ade2026a6861e1506cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "564446258182be168e6de86b014ff05a75b1e8cd07d5345cbf39eab9dc5ec324",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2011-12-15T18:03:33Z",
    "title_canon_sha256": "d794d61d98dd771bfb8f4e3589a61abf4ad2d843d5614bb3342023caf316ce16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.3589",
    "kind": "arxiv",
    "version": 1
  }
}