Pith Number

pith:2EI4LAX2

pith:2017:2EI4LAX2H4XJCRSGYMUAIPHIQW

not attested not anchored not stored refs pending

Statistical distribution of the Stern sequence

Lukas Spiegelhofer, Sandro Bettin, Sary Drappeau

arxiv:1704.05253 v2 · 2017-04-18 · 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{2EI4LAX2H4XJCRSGYMUAIPHIQW}

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	2026-05-17T23:47:03.922342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d111c582fa3f2e914646c328043ce8858713c6180677931d182d1d2662e44b7b

Aliases

arxiv: 1704.05253 · arxiv_version: 1704.05253v2 · doi: 10.48550/arxiv.1704.05253 · pith_short_12: 2EI4LAX2H4XJ · pith_short_16: 2EI4LAX2H4XJCRSG · pith_short_8: 2EI4LAX2

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/2EI4LAX2H4XJCRSGYMUAIPHIQW \
  | 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: d111c582fa3f2e914646c328043ce8858713c6180677931d182d1d2662e44b7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7df4dea7dbe14d947216e389bba70477e79d2283b945ebee59f1ff8dfea28353",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-04-18T09:45:55Z",
    "title_canon_sha256": "60f3bc83883bc52cc2884f89dd52cf295e6c8331705d69ac416b9a5d06a3b3d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05253",
    "kind": "arxiv",
    "version": 2
  }
}