Pith Number

pith:BRC5GFNN

pith:2010:BRC5GFNN26T4FWRUL7BD35GD4R

not attested not anchored not stored refs pending

Distance Constraint Satisfaction Problems

Antoine Mottet, Barnaby Martin, Manuel Bodirsky, Michael Pinsker, Victor Dalmau

arxiv:1004.3842 v3 · 2010-04-22 · cs.CC · cs.LO · math.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{BRC5GFNN26T4FWRUL7BD35GD4R}

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	2026-05-18T01:16:19.393541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c45d315add7a7c2da345fc23df4c3e44af9e4d03c2db2365e31f9571cc99f78

Aliases

arxiv: 1004.3842 · arxiv_version: 1004.3842v3 · doi: 10.48550/arxiv.1004.3842 · pith_short_12: BRC5GFNN26T4 · pith_short_16: BRC5GFNN26T4FWRU · pith_short_8: BRC5GFNN

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/BRC5GFNN26T4FWRUL7BD35GD4R \
  | 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: 0c45d315add7a7c2da345fc23df4c3e44af9e4d03c2db2365e31f9571cc99f78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d20ebc9084c0e81ecb33c76deda1d76a39fd926cb9551384651418e25885380f",
    "cross_cats_sorted": [
      "cs.LO",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2010-04-22T06:12:26Z",
    "title_canon_sha256": "6192074bda7f11831096a2ff3e4884b65a98ecd11c304abff197877939286715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3842",
    "kind": "arxiv",
    "version": 3
  }
}