Pith Number

pith:LPEGRBIK

pith:2011:LPEGRBIKLH5O6462EBK2YVTW4F

not attested not anchored not stored refs pending

Absoluteness of subword inequality is undecidable

Shinnosuke Seki

arxiv:1108.2758 v1 · 2011-08-13 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LPEGRBIKLH5O6462EBK2YVTW4F}

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	2026-05-18T04:15:35.662031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bc868850a59faef73da2055ac5676e15f900459fcd426f76b9644aeb04d92cd

Aliases

arxiv: 1108.2758 · arxiv_version: 1108.2758v1 · doi: 10.48550/arxiv.1108.2758 · pith_short_12: LPEGRBIKLH5O · pith_short_16: LPEGRBIKLH5O6462 · pith_short_8: LPEGRBIK

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/LPEGRBIKLH5O6462EBK2YVTW4F \
  | 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: 5bc868850a59faef73da2055ac5676e15f900459fcd426f76b9644aeb04d92cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c898fb1a4e05dd87118b8a5a8fdb866d7f798ff3f7bda8946b1fb9a39fe4deaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-08-13T04:59:10Z",
    "title_canon_sha256": "c3f12afd8cb1fc1385e6fefec4ac74befcaa2ddf44bc62eed799c97a1a73e815"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2758",
    "kind": "arxiv",
    "version": 1
  }
}