Pith Number

pith:KP4EUWUY

pith:2013:KP4EUWUY6BDAOGIE5XUMPKQUFI

not attested not anchored not stored refs pending

Blowing up and blurring finite Monk and rainbow algebras

Tarek Sayed Ahmed

arxiv:1305.4570 v1 · 2013-05-20 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KP4EUWUY6BDAOGIE5XUMPKQUFI}

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	2026-05-18T03:25:16.664542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53f84a5a98f046071904ede8c7aa142a2551b2cf7b39b1dd99380db6fa17d183

Aliases

arxiv: 1305.4570 · arxiv_version: 1305.4570v1 · doi: 10.48550/arxiv.1305.4570 · pith_short_12: KP4EUWUY6BDA · pith_short_16: KP4EUWUY6BDAOGIE · pith_short_8: KP4EUWUY

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/KP4EUWUY6BDAOGIE5XUMPKQUFI \
  | 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: 53f84a5a98f046071904ede8c7aa142a2551b2cf7b39b1dd99380db6fa17d183

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4e16a0eb507c5dbba5460abce317e20cf034db46f86fbecc1b1cfbd110cebb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2013-05-20T16:31:32Z",
    "title_canon_sha256": "aca1bd09e91d4e7f75f68c66552a8cedacecb7fdfb8e7626fa82fb36c261a866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.4570",
    "kind": "arxiv",
    "version": 1
  }
}