Pith Number

pith:4IQMCOSW

pith:2015:4IQMCOSWL7AI5X5MMCCZYZFEQY

not attested not anchored not stored refs pending

Strong normality and generalised Copeland--Erd\H{o}s numbers

Elliot Catt, Jordan Velich, Michael Coons

arxiv:1511.07532 v1 · 2015-11-24 · 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{4IQMCOSWL7AI5X5MMCCZYZFEQY}

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	2026-05-18T01:26:04.512845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e220c13a565fc08edfac60859c64a4861cc60e067ffba382b20758c1d45f6ce3

Aliases

arxiv: 1511.07532 · arxiv_version: 1511.07532v1 · doi: 10.48550/arxiv.1511.07532 · pith_short_12: 4IQMCOSWL7AI · pith_short_16: 4IQMCOSWL7AI5X5M · pith_short_8: 4IQMCOSW

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/4IQMCOSWL7AI5X5MMCCZYZFEQY \
  | 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: e220c13a565fc08edfac60859c64a4861cc60e067ffba382b20758c1d45f6ce3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9955b43184ad61f57389194d01c643a5f85803478d0412cabddce8a303a91ddd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-11-24T01:27:46Z",
    "title_canon_sha256": "cad28be0554e869da2fa39ec940ee1b92a7b6ff9a18ee3cb7258af11f5d9eef0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.07532",
    "kind": "arxiv",
    "version": 1
  }
}