Pith Number

pith:4V374T26

pith:2014:4V374T26CTBF6LW26N7ZZ77I4K

not attested not anchored not stored refs pending

A QRT-system of two order one homographic difference equations: conjugation to rotations, periods of periodic solutions, sensitiveness to initial conditions

Guy Bastien, Marc Rogalski

arxiv:1407.0918 v1 · 2014-07-03 · 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{4V374T26CTBF6LW26N7ZZ77I4K}

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	2026-05-18T02:48:25.161751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e577fe4f5e14c25f2edaf37f9cffe8e2be716003e76a5743e759a43aeae947b3

Aliases

arxiv: 1407.0918 · arxiv_version: 1407.0918v1 · doi: 10.48550/arxiv.1407.0918 · pith_short_12: 4V374T26CTBF · pith_short_16: 4V374T26CTBF6LW2 · pith_short_8: 4V374T26

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/4V374T26CTBF6LW26N7ZZ77I4K \
  | 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: e577fe4f5e14c25f2edaf37f9cffe8e2be716003e76a5743e759a43aeae947b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d82f87266f792a9bbebdb73a97da49741e7bf6b2af28d44ee7371481c1288c23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2014-07-03T13:33:00Z",
    "title_canon_sha256": "30ac9cf716f3a07203435b8a9970742af97922ac4a8d02a399e033f7a7cc41cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.0918",
    "kind": "arxiv",
    "version": 1
  }
}