Pith Number

pith:IOV6Q6Q7

pith:2023:IOV6Q6Q7B42MRTX5T3QJEAHID7

not attested not anchored not stored refs pending

A Note on Thompson Problem

Wujie Shi, Yu Li

arxiv:2303.09460 v1 · 2023-03-15 · 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{IOV6Q6Q7B42MRTX5T3QJEAHID7}

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	2026-07-05T05:51:53.764879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43abe87a1f0f34c8cefd9ee09200e81fe9d8e4d1e6dea1d7b70f814aa83c7058

Aliases

arxiv: 2303.09460 · arxiv_version: 2303.09460v1 · doi: 10.48550/arxiv.2303.09460 · pith_short_12: IOV6Q6Q7B42M · pith_short_16: IOV6Q6Q7B42MRTX5 · pith_short_8: IOV6Q6Q7

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/IOV6Q6Q7B42MRTX5T3QJEAHID7 \
  | 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: 43abe87a1f0f34c8cefd9ee09200e81fe9d8e4d1e6dea1d7b70f814aa83c7058

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c32992cf7be2d24ab6dac133114db26620220d65a8173f708d48487b0393ce3f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2023-03-15T00:15:31Z",
    "title_canon_sha256": "11444aa82c76c9728973e63b40dd171af489d8df549416df6455080e81fa55e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.09460",
    "kind": "arxiv",
    "version": 1
  }
}