Pith Number

pith:IEZ6TVPO

pith:2015:IEZ6TVPOZAFUWYDBEB3A64K2AD

not attested not anchored not stored refs pending

On quadratic periodic points of quadratic polynomials

Robin Zhang, Zhiming Wang

arxiv:1504.00985 v2 · 2015-04-04 · math.NT · 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{IEZ6TVPOZAFUWYDBEB3A64K2AD}

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	2026-05-18T02:18:40.243061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4133e9d5eec80b4b606120760f715a00fffe2f106221d91d2021432b81e02e88

Aliases

arxiv: 1504.00985 · arxiv_version: 1504.00985v2 · doi: 10.48550/arxiv.1504.00985 · pith_short_12: IEZ6TVPOZAFU · pith_short_16: IEZ6TVPOZAFUWYDB · pith_short_8: IEZ6TVPO

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/IEZ6TVPOZAFUWYDBEB3A64K2AD \
  | 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: 4133e9d5eec80b4b606120760f715a00fffe2f106221d91d2021432b81e02e88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c679706c94ed4b36ecbcc5df052ab4e2618fb6d71a99ce95446d3e257badccd6",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-04-04T06:10:55Z",
    "title_canon_sha256": "3e7267faa5ca18a011f1559f101029b542b6cb4b9f0da67f8e90f78686ee2173"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00985",
    "kind": "arxiv",
    "version": 2
  }
}