Pith Number

pith:YOTF5IM7

pith:2011:YOTF5IM73ADHRYAPLRCEEVIYQY

not attested not anchored not stored refs pending

The Algebra of Two Dimensional Patterns

Subhash Kak

arxiv:1102.4573 v1 · 2011-02-22 · 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{YOTF5IM73ADHRYAPLRCEEVIYQY}

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	2026-05-18T04:28:08.623572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3a65ea19fd80678e00f5c444255188628cabe9515b273a7a35a6cc7fdd0bbe4

Aliases

arxiv: 1102.4573 · arxiv_version: 1102.4573v1 · doi: 10.48550/arxiv.1102.4573 · pith_short_12: YOTF5IM73ADH · pith_short_16: YOTF5IM73ADHRYAP · pith_short_8: YOTF5IM7

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/YOTF5IM73ADHRYAPLRCEEVIYQY \
  | 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: c3a65ea19fd80678e00f5c444255188628cabe9515b273a7a35a6cc7fdd0bbe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11fb76bf6e853835d910b9f6a889a521e245201d0ffe8baafd9ed9c8907303c0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-02-22T18:26:35Z",
    "title_canon_sha256": "21c86e3751969e6feeb98c646f77cfa06ebb24ee896de4043e8158d5f4afe1de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4573",
    "kind": "arxiv",
    "version": 1
  }
}