Pith Number

pith:7Q6TM3VP

pith:2016:7Q6TM3VPOKZKIEKTVMXVQWA3DK

not attested not anchored not stored refs pending

Nonexistence of a few binary orthogonal arrays

Maya Stoyanova, Peter Boyvalenkov, Tanya Marinova

arxiv:1604.06117 v1 · 2016-04-20 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7Q6TM3VPOKZKIEKTVMXVQWA3DK}

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	2026-05-18T01:16:32.566189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc3d366eaf72b2a41153ab2f58581b1a95b02d88ef239878daa1774409d2709c

Aliases

arxiv: 1604.06117 · arxiv_version: 1604.06117v1 · doi: 10.48550/arxiv.1604.06117 · pith_short_12: 7Q6TM3VPOKZK · pith_short_16: 7Q6TM3VPOKZKIEKT · pith_short_8: 7Q6TM3VP

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/7Q6TM3VPOKZKIEKTVMXVQWA3DK \
  | 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: fc3d366eaf72b2a41153ab2f58581b1a95b02d88ef239878daa1774409d2709c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc3863f2c8a4cfe320bb79bda73991b655c6c71ee067b5ed1cd5b289ca495ba1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-04-20T20:30:58Z",
    "title_canon_sha256": "fabeba4aa4c54944b654018d80a9f76ce47d4d6639c389b17a0a2577adfe622c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.06117",
    "kind": "arxiv",
    "version": 1
  }
}