Pith Number

pith:YO5J7O3Z

pith:2009:YO5J7O3ZPZQMEAMHJKQBLUUX75

not attested not anchored not stored refs pending

On the Hybrid Extension of CTL and CTL+

Ahmet Kara, Martin Lange, Thomas Schwentick, Volker Weber

arxiv:0906.2541 v1 · 2009-06-14 · 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{YO5J7O3ZPZQMEAMHJKQBLUUX75}

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	2026-05-18T02:13:20.265583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3ba9fbb797e60c201874aa015d297ff58c255645f68c1df37fec7f33c6a7dec

Aliases

arxiv: 0906.2541 · arxiv_version: 0906.2541v1 · doi: 10.48550/arxiv.0906.2541 · pith_short_12: YO5J7O3ZPZQM · pith_short_16: YO5J7O3ZPZQMEAMH · pith_short_8: YO5J7O3Z

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/YO5J7O3ZPZQMEAMHJKQBLUUX75 \
  | 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: c3ba9fbb797e60c201874aa015d297ff58c255645f68c1df37fec7f33c6a7dec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e19085778a1024419b53a1db3e3aacc7704fa9a2f464fa5b58d64cb10bd382a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2009-06-14T14:35:09Z",
    "title_canon_sha256": "451ab8cd8bebe64dff8cdab788d78c3de956c4c5c8bee58eae20337f2e6d10b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2541",
    "kind": "arxiv",
    "version": 1
  }
}