Pith Number

pith:J5WVQALV

pith:2019:J5WVQALVGGXPAQCSUC6KO4BLZN

not attested not anchored not stored refs pending

The Conjugacy Problem for Higman's Group

Owen Baker

arxiv:1902.06037 v1 · 2019-02-16 · 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{J5WVQALVGGXPAQCSUC6KO4BLZN}

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	2026-05-17T23:53:46.808333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f6d58017531aef04052a0bca7702bcb6b27b9c9ccd9751ebdf8f7366b9a3c68

Aliases

arxiv: 1902.06037 · arxiv_version: 1902.06037v1 · doi: 10.48550/arxiv.1902.06037 · pith_short_12: J5WVQALVGGXP · pith_short_16: J5WVQALVGGXPAQCS · pith_short_8: J5WVQALV

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/J5WVQALVGGXPAQCSUC6KO4BLZN \
  | 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: 4f6d58017531aef04052a0bca7702bcb6b27b9c9ccd9751ebdf8f7366b9a3c68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14e122a1a856f845afe63fda639ecda28058af2e6ca6e68f78c8793a01fe0a51",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-02-16T04:09:38Z",
    "title_canon_sha256": "8da3eca8773c2b8d29d18f134b1f3283a62576182b1ac0e498fce2a642d7ab8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06037",
    "kind": "arxiv",
    "version": 1
  }
}