Pith Number

pith:Y43TKOEU

pith:2014:Y43TKOEUXKABRTQPPBAAEHKSGY

not attested not anchored not stored refs pending

On Tarski's Decidability Problem

Alexei Myasnikov, Olga Kharlampovich

arxiv:1402.0482 v3 · 2014-02-03 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y43TKOEUXKABRTQPPBAAEHKSGY}

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	2026-05-18T02:50:42.498348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c737353894ba8018ce0f7840021d52363f81ddbfad50aa2d60993494d09aff55

Aliases

arxiv: 1402.0482 · arxiv_version: 1402.0482v3 · doi: 10.48550/arxiv.1402.0482 · pith_short_12: Y43TKOEUXKAB · pith_short_16: Y43TKOEUXKABRTQP · pith_short_8: Y43TKOEU

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/Y43TKOEUXKABRTQPPBAAEHKSGY \
  | 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: c737353894ba8018ce0f7840021d52363f81ddbfad50aa2d60993494d09aff55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f6ae6545973eb12f44dcbd81e623c7175aaf3fb39890e9f2e996dc29cdc506d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-02-03T19:46:27Z",
    "title_canon_sha256": "dbac2f88927e87f85ad01fd0f2d9e0d85eced8bb0e8156526592ef774236105f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0482",
    "kind": "arxiv",
    "version": 3
  }
}