Pith Number

pith:USXTZYHY

pith:2020:USXTZYHYCQDORCQTW2YXR2YKE4

not attested not anchored not stored refs pending

Weighted automata are compact and actively learnable

Artem Kaznatcheev, Prakash Panangaden

arxiv:2011.10498 v3 · 2020-11-20 · 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{USXTZYHYCQDORCQTW2YXR2YKE4}

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	2026-07-05T02:34:20.899573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4af3ce0f81406e88a13b6b178eb0a2711b8c364d39b8203287529caaeb33c01

Aliases

arxiv: 2011.10498 · arxiv_version: 2011.10498v3 · doi: 10.48550/arxiv.2011.10498 · pith_short_12: USXTZYHYCQDO · pith_short_16: USXTZYHYCQDORCQT · pith_short_8: USXTZYHY

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/USXTZYHYCQDORCQTW2YXR2YKE4 \
  | 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: a4af3ce0f81406e88a13b6b178eb0a2711b8c364d39b8203287529caaeb33c01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6381653773802ae04112ee7d4b47fde0df32f77bb62abfb00d9ee64bc751fa15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2020-11-20T16:53:18Z",
    "title_canon_sha256": "f30e0b77320331f4a2fd4fec32925551f29f428c776bfb49d1bdb6cf9180fede"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.10498",
    "kind": "arxiv",
    "version": 3
  }
}