Pith Number

pith:YP7YG5HI

pith:2008:YP7YG5HI4DY4LTXWLXKAZFOSSL

not attested not anchored not stored refs pending

Datalog and Constraint Satisfaction with Infinite Templates

Manuel Bodirsky, Victor Dalmau

arxiv:0809.2386 v3 · 2008-09-14 · cs.LO · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YP7YG5HI4DY4LTXWLXKAZFOSSL}

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	2026-05-18T03:57:53.905337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3ff8374e8e0f1c5cef65dd40c95d292ccca3d5f7bbe9237ce40414fcc0c1c8f

Aliases

arxiv: 0809.2386 · arxiv_version: 0809.2386v3 · doi: 10.48550/arxiv.0809.2386 · pith_short_12: YP7YG5HI4DY4 · pith_short_16: YP7YG5HI4DY4LTXW · pith_short_8: YP7YG5HI

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/YP7YG5HI4DY4LTXWLXKAZFOSSL \
  | 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: c3ff8374e8e0f1c5cef65dd40c95d292ccca3d5f7bbe9237ce40414fcc0c1c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41d2ed28931e28f6773c5bf1c7a367e8b6dcdfef9725b517e99a438e6765f06b",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2008-09-14T10:01:27Z",
    "title_canon_sha256": "d63020b0b6f3a1fa6436954c211c60973d9d137673954a28f7fa7f44694792ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2386",
    "kind": "arxiv",
    "version": 3
  }
}