Pith Number

pith:OZHR7ZBK

pith:2014:OZHR7ZBK6MPWK3RQ2GFE73YHPE

not attested not anchored not stored refs pending

The finite basis problem for words with at most two non-linear variables

Olga Sapir

arxiv:1403.6430 v5 · 2014-03-25 · 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{OZHR7ZBK6MPWK3RQ2GFE73YHPE}

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	2026-05-18T01:04:58.150379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

764f1fe42af31f656e30d18a4fef07791fa9cb0e48b64e3afb7ae40e1495d2f5

Aliases

arxiv: 1403.6430 · arxiv_version: 1403.6430v5 · doi: 10.48550/arxiv.1403.6430 · pith_short_12: OZHR7ZBK6MPW · pith_short_16: OZHR7ZBK6MPWK3RQ · pith_short_8: OZHR7ZBK

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/OZHR7ZBK6MPWK3RQ2GFE73YHPE \
  | 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: 764f1fe42af31f656e30d18a4fef07791fa9cb0e48b64e3afb7ae40e1495d2f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fef2745ba3866691ffecbb930c0b599e589f8560a31c4960aaf00803f9520ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2014-03-25T17:32:43Z",
    "title_canon_sha256": "5082d7b264aeb2cac2e562cd694e5f7773ce5e182dec971778fb97ac43f05f10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6430",
    "kind": "arxiv",
    "version": 5
  }
}