Pith Number

pith:65MDF5GU

pith:2012:65MDF5GUTSTHKYXXQ7RE4M6I4Q

not attested not anchored not stored refs pending

Alternating register automata on finite words and trees

Diego Figueira (INRIA & ENS Cachan, LSV)

arxiv:1202.3957 v2 · 2012-02-17 · cs.DB · cs.FL · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{65MDF5GUTSTHKYXXQ7RE4M6I4Q}

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	2026-05-18T01:37:39.000341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f75832f4d49ca67562f787e24e33c8e41ab03b0f16fe5f4eaa8ac6d5e2bdf7f9

Aliases

arxiv: 1202.3957 · arxiv_version: 1202.3957v2 · doi: 10.48550/arxiv.1202.3957 · pith_short_12: 65MDF5GUTSTH · pith_short_16: 65MDF5GUTSTHKYXX · pith_short_8: 65MDF5GU

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/65MDF5GUTSTHKYXXQ7RE4M6I4Q \
  | 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: f75832f4d49ca67562f787e24e33c8e41ab03b0f16fe5f4eaa8ac6d5e2bdf7f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fadd7bdb09db37a64969440bd1934505d56a5d869480413069fc4dd325abb5be",
    "cross_cats_sorted": [
      "cs.FL",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2012-02-17T16:38:10Z",
    "title_canon_sha256": "413dc1253007706bb24c6ea4466fb1d990c286cb0a31c13e4a356821357b3337"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3957",
    "kind": "arxiv",
    "version": 2
  }
}