Pith Number

pith:MQ4IQ7X4

pith:2017:MQ4IQ7X4C3JOCSDLBF2DVFHPCM

not attested not anchored not stored refs pending

The Rudin-Shapiro sequence and similar sequences are normal along squares

Clemens M\"ullner

arxiv:1704.06472 v2 · 2017-04-21 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MQ4IQ7X4C3JOCSDLBF2DVFHPCM}

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	2026-05-18T00:30:45.118160Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6438887efc16d2e1486b09743a94ef1321d35ce08785585f2e1cfb5d26e24771

Aliases

arxiv: 1704.06472 · arxiv_version: 1704.06472v2 · doi: 10.48550/arxiv.1704.06472 · pith_short_12: MQ4IQ7X4C3JO · pith_short_16: MQ4IQ7X4C3JOCSDL · pith_short_8: MQ4IQ7X4

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/MQ4IQ7X4C3JOCSDLBF2DVFHPCM \
  | 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: 6438887efc16d2e1486b09743a94ef1321d35ce08785585f2e1cfb5d26e24771

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e73e4b786c69fa5997a53dd8ece7c41638ba08e1382bd06b4e175248423f2512",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-04-21T10:32:55Z",
    "title_canon_sha256": "721ce416f6065f5b5acd66049981e3f41048ced5ba039e3d07f3eb1dc4e4f23a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06472",
    "kind": "arxiv",
    "version": 2
  }
}