Pith Number

pith:K556I3V2

pith:2017:K556I3V2FVM7PLYBZYVBGMSMC2

not attested not anchored not stored refs pending

Time Complexity of Constraint Satisfaction via Universal Algebra

Biman Roy, Peter Jonsson, Victor Lagerkvist

arxiv:1706.05902 v1 · 2017-06-19 · 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{K556I3V2FVM7PLYBZYVBGMSMC2}

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	2026-05-18T00:42:08.583037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

577be46eba2d59f7af01ce2a13324c16bdf92b03a990b79a342014b6bcaa7daf

Aliases

arxiv: 1706.05902 · arxiv_version: 1706.05902v1 · doi: 10.48550/arxiv.1706.05902 · pith_short_12: K556I3V2FVM7 · pith_short_16: K556I3V2FVM7PLYB · pith_short_8: K556I3V2

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/K556I3V2FVM7PLYBZYVBGMSMC2 \
  | 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: 577be46eba2d59f7af01ce2a13324c16bdf92b03a990b79a342014b6bcaa7daf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b398e05b8284ec220a361625bd78c0d98d4475f32dd7ff6118e0c6f6eb6a9c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-06-19T12:26:49Z",
    "title_canon_sha256": "ed2b8c475da86d1abd5a4ea7e320518c8d82b287ca0c004b74ca41b42aea8c33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.05902",
    "kind": "arxiv",
    "version": 1
  }
}