Pith Number

pith:PIFGLLBS

pith:2021:PIFGLLBSMEJWW665MQ34OH454Z

not attested not anchored not stored refs pending

Collapsing the bounded width hierarchy for infinite-domain CSPs: when symmetries are enough

Antoine Mottet, Michael Pinsker, Micha{\l} Wrona, Tom\'a\v{s} Nagy

arxiv:2102.07531 v3 · 2021-02-15 · 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{PIFGLLBSMEJWW665MQ34OH454Z}

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	2026-07-05T08:44:07.630702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a0a65ac3261136b7bdd6437c71f9de661eafb57eb8f2a9a79f2716a11e41bd2

Aliases

arxiv: 2102.07531 · arxiv_version: 2102.07531v3 · doi: 10.48550/arxiv.2102.07531 · pith_short_12: PIFGLLBSMEJW · pith_short_16: PIFGLLBSMEJWW665 · pith_short_8: PIFGLLBS

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/PIFGLLBSMEJWW665MQ34OH454Z \
  | 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: 7a0a65ac3261136b7bdd6437c71f9de661eafb57eb8f2a9a79f2716a11e41bd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beab0548db7e06e12ab4eced0eb298adfcf9550e5780f5854d77259599154b15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-02-15T13:06:45Z",
    "title_canon_sha256": "ec90fda29bffa836e4bf67d7703014bba1a0e7a2172d57bbdd648a5a5838161e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07531",
    "kind": "arxiv",
    "version": 3
  }
}