Pith Number

pith:MR7I5LET

pith:2013:MR7I5LETUSJ3DME6VGPABGQ53O

not attested not anchored not stored refs pending

Auto-similarity in rational base number systems

Jacques Sakarovitch, Shigeki Akiyama, Victor Marsault

arxiv:1305.6757 v1 · 2013-05-29 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MR7I5LETUSJ3DME6VGPABGQ53O}

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	2026-05-18T03:22:17.962909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

647e8eac93a493b1b09ea99e009a1ddb97c72c26292d1369525070727f12b01e

Aliases

arxiv: 1305.6757 · arxiv_version: 1305.6757v1 · doi: 10.48550/arxiv.1305.6757 · pith_short_12: MR7I5LETUSJ3 · pith_short_16: MR7I5LETUSJ3DME6 · pith_short_8: MR7I5LET

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/MR7I5LETUSJ3DME6VGPABGQ53O \
  | 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: 647e8eac93a493b1b09ea99e009a1ddb97c72c26292d1369525070727f12b01e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5cbf9e8e1cf9c618bc629659a6b2a26867b17d710305bf1d2a52ed248007927",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2013-05-29T10:58:43Z",
    "title_canon_sha256": "da3c809f5c542d5b2a8ef724dd280c80b3c12edcb0d140f2d0ec5a0962bdba90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6757",
    "kind": "arxiv",
    "version": 1
  }
}