Pith Number

pith:SSZU5CVS

pith:2014:SSZU5CVS6ZKILQMHTSQ2NFHUU3

not attested not anchored not stored refs pending

Sturmian words and the Stern sequence

Aldo de Luca, Alessandro De Luca

arxiv:1410.4085 v1 · 2014-10-15 · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SSZU5CVS6ZKILQMHTSQ2NFHUU3}

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	2026-05-18T02:40:02.665469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94b34e8ab2f65485c1879ca1a694f4a6cf333f6c8ee67c7ce4c3c82d47b3bfe2

Aliases

arxiv: 1410.4085 · arxiv_version: 1410.4085v1 · doi: 10.48550/arxiv.1410.4085 · pith_short_12: SSZU5CVS6ZKI · pith_short_16: SSZU5CVS6ZKILQMH · pith_short_8: SSZU5CVS

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/SSZU5CVS6ZKILQMHTSQ2NFHUU3 \
  | 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: 94b34e8ab2f65485c1879ca1a694f4a6cf333f6c8ee67c7ce4c3c82d47b3bfe2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43ca0a93854d76f75eb20b8178ef31e86d62784d4dea5a125603167950821451",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-10-15T14:57:10Z",
    "title_canon_sha256": "460e3da7d637114d8cc5a4f3107598d2f0338a13ca16d2bb888d9b3f591e4a53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.4085",
    "kind": "arxiv",
    "version": 1
  }
}