Pith Number

pith:FNBQ2I2O

pith:2024:FNBQ2I2OBAX637VAI2A73AEJ7C

not attested not anchored not stored refs pending

Strict width for Constraint Satisfaction Problems over homogeneous strucures of finite duality

Michael Pinsker, Tom\'a\v{s} Nagy

arxiv:2402.09951 v1 · 2024-02-15 · 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{FNBQ2I2OBAX637VAI2A73AEJ7C}

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.

Cited by

1 paper in Pith

Constraint Satisfaction Problems over Finitely Bounded Homogeneous Structures: a Dichotomy between FO and L-hard

Receipt and verification

First computed	2026-07-05T07:45:39.262250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b430d234e082fedfea04681fd8089f890c26b44e0aa80983b5c5457949e1ac0

Aliases

arxiv: 2402.09951 · arxiv_version: 2402.09951v1 · doi: 10.48550/arxiv.2402.09951 · pith_short_12: FNBQ2I2OBAX6 · pith_short_16: FNBQ2I2OBAX637VA · pith_short_8: FNBQ2I2O

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/FNBQ2I2OBAX637VAI2A73AEJ7C \
  | 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: 2b430d234e082fedfea04681fd8089f890c26b44e0aa80983b5c5457949e1ac0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6405c3da1175baa245a20c769a289341cdd2e3d66517b4ca081b7f868877d9c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2024-02-15T13:58:57Z",
    "title_canon_sha256": "dbc81038a9d9b3db7c077dda5c4e82b2d75db0fe55cb65b6163e3de30dd456af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.09951",
    "kind": "arxiv",
    "version": 1
  }
}