Pith Number

pith:LODGHD3Y

pith:2016:LODGHD3Y7ZMFRDZH74ZZGVLHWP

not attested not anchored not stored refs pending

A Logspace Solution to the Word and Conjugacy problem of Generalized Baumslag-Solitar Groups

Armin Wei{\ss}

arxiv:1602.02445 v2 · 2016-02-08 · cs.CC · cs.DM · 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{LODGHD3Y7ZMFRDZH74ZZGVLHWP}

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	2026-05-18T01:19:52.968244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b86638f78fe58588f27ff33935567b3eb18f85d3faf2c34ec2e2e9d8b3e3fda

Aliases

arxiv: 1602.02445 · arxiv_version: 1602.02445v2 · doi: 10.48550/arxiv.1602.02445 · pith_short_12: LODGHD3Y7ZMF · pith_short_16: LODGHD3Y7ZMFRDZH · pith_short_8: LODGHD3Y

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/LODGHD3Y7ZMFRDZH74ZZGVLHWP \
  | 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: 5b86638f78fe58588f27ff33935567b3eb18f85d3faf2c34ec2e2e9d8b3e3fda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a01df1215b479fa839f9e4c6324c097d50c62142c0e18eca9aabf3d1b2f1d6ae",
    "cross_cats_sorted": [
      "cs.DM",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-02-08T01:07:24Z",
    "title_canon_sha256": "6ce3526af6e7e517d2806d0398686fffc19035ca960453ee83bf09450cf5e5ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02445",
    "kind": "arxiv",
    "version": 2
  }
}