Pith Number

pith:NNUG7ET2

pith:2008:NNUG7ET2AJW2AOROTIU5RYCQXT

not attested not anchored not stored refs pending

Cancellation Meadows: a Generic Basis Theorem and Some Applications

Alban Ponse, Inge Bethke, Jan A. Bergstra

arxiv:0803.3969 v3 · 2008-03-27 · math.RA · cs.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{NNUG7ET2AJW2AOROTIU5RYCQXT}

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	2026-05-18T03:25:14.913322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b686f927a026da03a2e9a29d8e050bcd1acb20e31f58445b7ae802d99a599a2

Aliases

arxiv: 0803.3969 · arxiv_version: 0803.3969v3 · doi: 10.48550/arxiv.0803.3969 · pith_short_12: NNUG7ET2AJW2 · pith_short_16: NNUG7ET2AJW2AORO · pith_short_8: NNUG7ET2

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/NNUG7ET2AJW2AOROTIU5RYCQXT \
  | 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: 6b686f927a026da03a2e9a29d8e050bcd1acb20e31f58445b7ae802d99a599a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f72779df312620a36024f7b5ba9250e5dc242569f5c5ca1b53b1cea031f15711",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2008-03-27T16:01:31Z",
    "title_canon_sha256": "f4db392ebed3b60afa1761defca257ec3e9f775572e12dcd447a12c1c60e2d66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.3969",
    "kind": "arxiv",
    "version": 3
  }
}