Pith Number

pith:T67Z5JF5

pith:2014:T67Z5JF5GY2EFHLEQW2TI35XEL

not attested not anchored not stored refs pending

An example concerning Hamiltonian groups of self product, II

Francois Lalonde, Shengda Hu

arxiv:1403.8140 v2 · 2014-03-31 · math.SG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T67Z5JF5GY2EFHLEQW2TI35XEL}

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	2026-05-18T02:55:03.522224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fbf9ea4bd3634429d6485b5346fb722da238a6222c1c34a02ee408a3046ffb1

Aliases

arxiv: 1403.8140 · arxiv_version: 1403.8140v2 · doi: 10.48550/arxiv.1403.8140 · pith_short_12: T67Z5JF5GY2E · pith_short_16: T67Z5JF5GY2EFHLE · pith_short_8: T67Z5JF5

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/T67Z5JF5GY2EFHLEQW2TI35XEL \
  | 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: 9fbf9ea4bd3634429d6485b5346fb722da238a6222c1c34a02ee408a3046ffb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03351a586f9133f111c6c21231464a848dc3c3b5691ebe117e337bd9930bb072",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2014-03-31T19:36:17Z",
    "title_canon_sha256": "561579d216eaf8b5afc24c809ccb5dbd6ce327b44fa3e358d27839e333f2bfc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.8140",
    "kind": "arxiv",
    "version": 2
  }
}