Pith Number

pith:H6W6DOS3

pith:2018:H6W6DOS3NAHUX33J473K7IILCW

not attested not anchored not stored refs pending

Covering Arrays for Equivalence Classes of Words

Anant Godbole, Joshua Cassels

arxiv:1803.06507 v1 · 2018-03-17 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6W6DOS3NAHUX33J473K7IILCW}

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	2026-05-18T00:20:45.724828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fade1ba5b680f4bef69e7f6afa10b159a92b6845b282cc602b173007852461c

Aliases

arxiv: 1803.06507 · arxiv_version: 1803.06507v1 · doi: 10.48550/arxiv.1803.06507 · pith_short_12: H6W6DOS3NAHU · pith_short_16: H6W6DOS3NAHUX33J · pith_short_8: H6W6DOS3

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/H6W6DOS3NAHUX33J473K7IILCW \
  | 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: 3fade1ba5b680f4bef69e7f6afa10b159a92b6845b282cc602b173007852461c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bfa4c45c15999441234814d5053861f676cdb60ee33e6c3b315ba7f8efb66b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-17T13:53:32Z",
    "title_canon_sha256": "b84ce9954f1e3a2a6d7a6d1b67916da6bd80f16f6af37b228a246801b2ee02a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06507",
    "kind": "arxiv",
    "version": 1
  }
}