Pith Number

pith:YJQHXRDC

pith:2015:YJQHXRDC55O46RQNJX4DH2JX6C

not attested not anchored not stored refs pending

The word problem for $\kappa$-terms over the pseudovariety of local groups

C. Nogueira, J.C. Costa, M.L. Teixeira

arxiv:1509.01533 v1 · 2015-09-04 · 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{YJQHXRDC55O46RQNJX4DH2JX6C}

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	2026-05-18T01:33:57.510150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2607bc462ef5dcf460d4df833e937f0b54acd720a98bb0c42b6a2f178000990

Aliases

arxiv: 1509.01533 · arxiv_version: 1509.01533v1 · doi: 10.48550/arxiv.1509.01533 · pith_short_12: YJQHXRDC55O4 · pith_short_16: YJQHXRDC55O46RQN · pith_short_8: YJQHXRDC

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/YJQHXRDC55O46RQNJX4DH2JX6C \
  | 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: c2607bc462ef5dcf460d4df833e937f0b54acd720a98bb0c42b6a2f178000990

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "327c995605e2b26da9648d5130df7ce7c289f42038abf62f7362b66c22ed81b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2015-09-04T17:24:37Z",
    "title_canon_sha256": "77087e9a3ecab5bb6d754ccb08ee94722b146d03dbbdba098729e49d06777eb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01533",
    "kind": "arxiv",
    "version": 1
  }
}