Pith Number

pith:3I2GDNBL

pith:2018:3I2GDNBLZQDJF4AXH5SAJXQCP7

not attested not anchored not stored refs pending

Partial words with a unique position starting a square

John Machacek

arxiv:1809.11164 v2 · 2018-09-28 · 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{3I2GDNBLZQDJF4AXH5SAJXQCP7}

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	2026-05-17T23:54:53.710751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da3461b42bcc0692f0173f6404de027fee666316d7fe0e7287e3e647096b7db6

Aliases

arxiv: 1809.11164 · arxiv_version: 1809.11164v2 · doi: 10.48550/arxiv.1809.11164 · pith_short_12: 3I2GDNBLZQDJ · pith_short_16: 3I2GDNBLZQDJF4AX · pith_short_8: 3I2GDNBL

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/3I2GDNBLZQDJF4AXH5SAJXQCP7 \
  | 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: da3461b42bcc0692f0173f6404de027fee666316d7fe0e7287e3e647096b7db6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a35562a199279e86c369ee644a4afe952c70193243287cafb59fad4696b438a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-09-28T17:52:03Z",
    "title_canon_sha256": "39d5bbbacbbbbecc5895618dd937fb199015b4776f0b53955b8fd5793bd6dd57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.11164",
    "kind": "arxiv",
    "version": 2
  }
}