Pith Number

pith:FOSLWSYU

pith:2012:FOSLWSYUB5ZMZOHZNEGKCFF2AJ

not attested not anchored not stored refs pending

The complexity of approximating conservative counting CSPs

Colin McQuillan, David Richerby, Leslie Ann Goldberg, Mark Jerrum, Martin Dyer, Pinyan Lu, Xi Chen

arxiv:1208.1783 v3 · 2012-08-08 · 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{FOSLWSYUB5ZMZOHZNEGKCFF2AJ}

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	2026-05-18T02:48:17.977439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ba4bb4b140f72ccb8f9690ca114ba025db3ba12edea2754f9630a38392213bd

Aliases

arxiv: 1208.1783 · arxiv_version: 1208.1783v3 · doi: 10.48550/arxiv.1208.1783 · pith_short_12: FOSLWSYUB5ZM · pith_short_16: FOSLWSYUB5ZMZOHZ · pith_short_8: FOSLWSYU

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/FOSLWSYUB5ZMZOHZNEGKCFF2AJ \
  | 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: 2ba4bb4b140f72ccb8f9690ca114ba025db3ba12edea2754f9630a38392213bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39adbf79b75f7412667e2ed07764c721b4966692e525f9ff013f9f818e493684",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-08-08T21:07:20Z",
    "title_canon_sha256": "50676b70fe25c41c20ac979c3d609fbb60b6ccf88700f2e6439bfed23f24e124"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1783",
    "kind": "arxiv",
    "version": 3
  }
}