Pith Number

pith:DPEFPVOB

pith:2009:DPEFPVOB2NSUDSYFPJDSENWQXC

not attested not anchored not stored refs pending

Simple tensor products

David Hernandez

arxiv:0907.3002 v2 · 2009-07-17 · math.QA · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPEFPVOB2NSUDSYFPJDSENWQXC}

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	2026-05-18T02:12:56.259507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bc857d5c1d36541cb057a472236d0b88563f8d6644dce960862e0f99ee6270d

Aliases

arxiv: 0907.3002 · arxiv_version: 0907.3002v2 · doi: 10.48550/arxiv.0907.3002 · pith_short_12: DPEFPVOB2NSU · pith_short_16: DPEFPVOB2NSUDSYF · pith_short_8: DPEFPVOB

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/DPEFPVOB2NSUDSYFPJDSENWQXC \
  | 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: 1bc857d5c1d36541cb057a472236d0b88563f8d6644dce960862e0f99ee6270d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e738b2fcb919062968d504fc65a1428fddd7ffb5fe20f294db54d571691ee64",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2009-07-17T07:38:31Z",
    "title_canon_sha256": "c2029489d8001aff674680967b7a1ce5c1f5151a8eac2bc21c1c67feccc2b2c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3002",
    "kind": "arxiv",
    "version": 2
  }
}