Pith Number

pith:QRLLM6UK

pith:2015:QRLLM6UK4NS5UJ2GSZVJPDBKYO

not attested not anchored not stored refs pending

A note on strictly positive logics and word rewriting systems

Lev D. Beklemishev

arxiv:1509.00666 v2 · 2015-09-02 · math.LO · 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{QRLLM6UK4NS5UJ2GSZVJPDBKYO}

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	2026-05-18T01:20:25.999481Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8456b67a8ae365da2746966a978c2ac3a71d0d9dfc56edddbeef11cb96f635c4

Aliases

arxiv: 1509.00666 · arxiv_version: 1509.00666v2 · doi: 10.48550/arxiv.1509.00666 · pith_short_12: QRLLM6UK4NS5 · pith_short_16: QRLLM6UK4NS5UJ2G · pith_short_8: QRLLM6UK

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/QRLLM6UK4NS5UJ2GSZVJPDBKYO \
  | 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: 8456b67a8ae365da2746966a978c2ac3a71d0d9dfc56edddbeef11cb96f635c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1222f2af30151c3dd329ad8903355f43e09847fffcb2892ccf1f8b48189c91e3",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-09-02T12:39:29Z",
    "title_canon_sha256": "fee96420b9515d10cb777d73b11225c16e7776389c8a8cd5cb96577fe733d00e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00666",
    "kind": "arxiv",
    "version": 2
  }
}