Pith Number

pith:2LFZ3JK4

pith:2016:2LFZ3JK4HBCWKEYBEAMJZTDPB2

not attested not anchored not stored refs pending

Derived-term Automata for Extended Weighted Rational Expressions

Akim Demaille

arxiv:1605.01530 v1 · 2016-05-05 · 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{2LFZ3JK4HBCWKEYBEAMJZTDPB2}

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	2026-05-18T01:15:33.435377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2cb9da55c384565130120189ccc6f0e895293b024a306a6389ba46c3843c750

Aliases

arxiv: 1605.01530 · arxiv_version: 1605.01530v1 · doi: 10.48550/arxiv.1605.01530 · pith_short_12: 2LFZ3JK4HBCW · pith_short_16: 2LFZ3JK4HBCWKEYB · pith_short_8: 2LFZ3JK4

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/2LFZ3JK4HBCWKEYBEAMJZTDPB2 \
  | 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: d2cb9da55c384565130120189ccc6f0e895293b024a306a6389ba46c3843c750

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd423241146da2162b32542aeb600813c5c244125c12a8cdbb6bcdb7a173fa5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2016-05-05T08:50:48Z",
    "title_canon_sha256": "ba929738a8bdac1911fe468c676901dba334d53704185451b98448354ec9a862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01530",
    "kind": "arxiv",
    "version": 1
  }
}