Pith Number

pith:HUYSENLH

pith:2026:HUYSENLHJ6NL5B7JG5IOPX37QB

not attested not anchored not stored refs pending

Virtual specialness of the double

Changqian Li

arxiv:2605.21734 v1 · 2026-05-20 · 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{HUYSENLHJ6NL5B7JG5IOPX37QB}

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	2026-05-22T01:03:29.835001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d312235674f9abe87e93750e7df7f8062509414dad977500559bafe696997e4

Aliases

arxiv: 2605.21734 · arxiv_version: 2605.21734v1 · doi: 10.48550/arxiv.2605.21734 · pith_short_12: HUYSENLHJ6NL · pith_short_16: HUYSENLHJ6NL5B7J · pith_short_8: HUYSENLH

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/HUYSENLHJ6NL5B7JG5IOPX37QB \
  | 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: 3d312235674f9abe87e93750e7df7f8062509414dad977500559bafe696997e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389a5b22d880b8d8461a49a7f8e34fc5135856890e7d7b0dce74f3f869c39d9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2026-05-20T20:48:53Z",
    "title_canon_sha256": "60799bfe88c880f205dfc509736bef0587fa3d7bcfb189b82cf99b922295a80c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21734",
    "kind": "arxiv",
    "version": 1
  }
}