Pith Number

pith:I2FSCHFX

pith:2026:I2FSCHFXWR4FKBNVDEWELYJYOT

not attested not anchored not stored refs pending

Automatic actions I. Bounded automata and orbits

Laurent Bartholdi

arxiv:2606.08101 v1 · 2026-06-06 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2FSCHFXWR4FKBNVDEWELYJYOT}

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	2026-06-09T01:05:26.479379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

468b211cb7b4785505b5192c45e13874f1eb135c9efaf70aac3a9af4a49fa9dd

Aliases

arxiv: 2606.08101 · arxiv_version: 2606.08101v1 · doi: 10.48550/arxiv.2606.08101 · pith_short_12: I2FSCHFXWR4F · pith_short_16: I2FSCHFXWR4FKBNV · pith_short_8: I2FSCHFX

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/I2FSCHFXWR4FKBNVDEWELYJYOT \
  | 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: 468b211cb7b4785505b5192c45e13874f1eb135c9efaf70aac3a9af4a49fa9dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c97cdf2c929ae804297daacd09c89c18848d5fd8bec669c2c3395ab823bb7abe",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2026-06-06T11:06:57Z",
    "title_canon_sha256": "5d48f592a3730dc320303a846486b7a2a71c9cd68c99e014c7c29409b0af7869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.08101",
    "kind": "arxiv",
    "version": 1
  }
}