Pith Number

pith:KAVA7J3X

pith:2015:KAVA7J3XYXMJRJARRRQBRWNHZ3

not attested not anchored not stored refs pending

A negative result on algebraic specifications of the meadow of rational numbers

Inge Bethke, Jan A. Bergstra

arxiv:1507.00548 v2 · 2015-07-02 · 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{KAVA7J3XYXMJRJARRRQBRWNHZ3}

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	2026-05-18T00:29:02.055575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

502a0fa777c5d898a4118c6018d9a7cecc0a533954dd19b4f793e9db395d2718

Aliases

arxiv: 1507.00548 · arxiv_version: 1507.00548v2 · doi: 10.48550/arxiv.1507.00548 · pith_short_12: KAVA7J3XYXMJ · pith_short_16: KAVA7J3XYXMJRJAR · pith_short_8: KAVA7J3X

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/KAVA7J3XYXMJRJARRRQBRWNHZ3 \
  | 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: 502a0fa777c5d898a4118c6018d9a7cecc0a533954dd19b4f793e9db395d2718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2c9c4e3fb686265717285c06ad87efe65cd2f2f8d0a96fdea7b781a1628c522",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2015-07-02T12:38:46Z",
    "title_canon_sha256": "e49d7251f0c297a6cfab737a751e13fc00d695841b71b6bd01cb994450b94ad3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.00548",
    "kind": "arxiv",
    "version": 2
  }
}