Pith Number

pith:S4RXNL4A

pith:2017:S4RXNL4A4RKYIYIIRMEDPNYKSR

not attested not anchored not stored refs pending

The sequence of open and closed prefixes of a Sturmian word

Alessandro De Luca, Gabriele Fici, Luca Q. Zamboni

arxiv:1701.01580 v2 · 2017-01-06 · cs.DM · cs.FL · 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{S4RXNL4A4RKYIYIIRMEDPNYKSR}

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	2026-05-18T00:15:00.133893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

972376af80e4558461088b0837b70a9477e9d3f2fc137f8e3793d4c9a3c5ef17

Aliases

arxiv: 1701.01580 · arxiv_version: 1701.01580v2 · doi: 10.48550/arxiv.1701.01580 · pith_short_12: S4RXNL4A4RKY · pith_short_16: S4RXNL4A4RKYIYII · pith_short_8: S4RXNL4A

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/S4RXNL4A4RKYIYIIRMEDPNYKSR \
  | 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: 972376af80e4558461088b0837b70a9477e9d3f2fc137f8e3793d4c9a3c5ef17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5704db1a7e276ada3300e27830a5bd858a8c0e70ad388eb79cd4a7775520e893",
    "cross_cats_sorted": [
      "cs.FL",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-01-06T09:13:16Z",
    "title_canon_sha256": "efe3f293f521cfce6e138fc90ece82bfc7d33d67eaa79df850ee9fe0d0a1a812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01580",
    "kind": "arxiv",
    "version": 2
  }
}