Pith Number

pith:642VHLVC

pith:2009:642VHLVCV74CIYT2RIZIHMW72V

not attested not anchored not stored refs pending

The n-th root of sequential effect algebras

Shen Jun, Wu Junde

arxiv:0903.5120 v3 · 2009-03-30 · math-ph · math.LO · math.MP · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{642VHLVCV74CIYT2RIZIHMW72V}

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	2026-05-18T00:31:00.831462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f73553aea2aff824627a8a3283b2dfd5716d03cc08fa9993e29ddcdcb04c5725

Aliases

arxiv: 0903.5120 · arxiv_version: 0903.5120v3 · doi: 10.48550/arxiv.0903.5120 · pith_short_12: 642VHLVCV74C · pith_short_16: 642VHLVCV74CIYT2 · pith_short_8: 642VHLVC

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/642VHLVCV74CIYT2RIZIHMW72V \
  | 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: f73553aea2aff824627a8a3283b2dfd5716d03cc08fa9993e29ddcdcb04c5725

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f09c3e707c034f476704d9fc55dec3640debd48250d4436718078ecc52607886",
    "cross_cats_sorted": [
      "math.LO",
      "math.MP",
      "math.QA"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2009-03-30T03:40:45Z",
    "title_canon_sha256": "2df5c1738a8eead88c189b7362ea14b1c62f3953b161f4abfbc3b0d7620e523e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.5120",
    "kind": "arxiv",
    "version": 3
  }
}