Pith Number

pith:3FRERIMG

pith:2019:3FRERIMGV4Y32CEXMO5YAI37KL

not attested not anchored not stored refs pending

What's decidable about parametric timed automata?

\'Etienne Andr\'e

arxiv:1907.01721 v1 · 2019-07-03 · cs.LO · 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{3FRERIMGV4Y32CEXMO5YAI37KL}

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	2026-05-17T23:41:35.322116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d96248a186af31bd089763bb80237f52f79a4af68980860ea58c2668d6aaea0b

Aliases

arxiv: 1907.01721 · arxiv_version: 1907.01721v1 · doi: 10.48550/arxiv.1907.01721 · pith_short_12: 3FRERIMGV4Y3 · pith_short_16: 3FRERIMGV4Y32CEX · pith_short_8: 3FRERIMG

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/3FRERIMGV4Y32CEXMO5YAI37KL \
  | 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: d96248a186af31bd089763bb80237f52f79a4af68980860ea58c2668d6aaea0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ebeef60563c960a85aa74edb5b67d2361039faca8f3f2193f39a81105ecbaa6",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-07-03T03:26:33Z",
    "title_canon_sha256": "c67e3f22ab980540efdb6b0410248d43c188c86d95fc85dbe094a36f15ecc687"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.01721",
    "kind": "arxiv",
    "version": 1
  }
}