Pith Number

pith:7UDWH2JY

pith:2011:7UDWH2JYGYB5FURG4PKLGAK7MW

not attested not anchored not stored refs pending

Introducing LoCo, a Logic for Configuration Problems

Conrad Drescher, Georg Gottlob, Markus Aschinger

arxiv:1109.0115 v1 · 2011-09-01 · 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{7UDWH2JYGYB5FURG4PKLGAK7MW}

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	2026-05-18T04:14:17.361948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd0763e9383603d2d226e3d4b3015f6591b369e07dc2934bccdd87878ac77001

Aliases

arxiv: 1109.0115 · arxiv_version: 1109.0115v1 · doi: 10.48550/arxiv.1109.0115 · pith_short_12: 7UDWH2JYGYB5 · pith_short_16: 7UDWH2JYGYB5FURG · pith_short_8: 7UDWH2JY

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/7UDWH2JYGYB5FURG4PKLGAK7MW \
  | 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: fd0763e9383603d2d226e3d4b3015f6591b369e07dc2934bccdd87878ac77001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b6570a38ed5ae30cf76d5ecefab4ae8c70479d1d2ec2862dfdc6915e9d7b01d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-09-01T07:34:23Z",
    "title_canon_sha256": "f36312f9be87fd02e24b16063ba48e8eea804e00c7fc060f01d87726e28e3e73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0115",
    "kind": "arxiv",
    "version": 1
  }
}