Pith Number

pith:KA6LWWK5

pith:2017:KA6LWWK54WNK26XQPF6HDW7ZUE

not attested not anchored not stored refs pending

Consensus Patterns parameterized by input string length is W[1]-hard

Laurent Bulteau

arxiv:1702.08238 v1 · 2017-02-27 · 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{KA6LWWK54WNK26XQPF6HDW7ZUE}

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	2026-05-18T00:49:55.483801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

503cbb595de59aad7af0797c71dbf9a12c98f279664723721e3e81c04d4a44fd

Aliases

arxiv: 1702.08238 · arxiv_version: 1702.08238v1 · doi: 10.48550/arxiv.1702.08238 · pith_short_12: KA6LWWK54WNK · pith_short_16: KA6LWWK54WNK26XQ · pith_short_8: KA6LWWK5

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/KA6LWWK54WNK26XQPF6HDW7ZUE \
  | 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: 503cbb595de59aad7af0797c71dbf9a12c98f279664723721e3e81c04d4a44fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7d99ba7c86e3bcfd4a487088db7701aad43675ff90df1b213b410d458c4c739",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-02-27T11:24:02Z",
    "title_canon_sha256": "d59e2d9496ab6ade57fa5666ba14fc77dc06fa388ae490844bf359e0f80bb300"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08238",
    "kind": "arxiv",
    "version": 1
  }
}