Pith Number

pith:7UISV4YN

pith:2013:7UISV4YNWLMKVRIUWJFNN2HGSB

not attested not anchored not stored refs pending

Non-commutative perspectives

Edward Effros, Frank Hansen

arxiv:1309.7701 v1 · 2013-09-30 · math.FA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7UISV4YNWLMKVRIUWJFNN2HGSB}

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	2026-05-18T03:11:48.623608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd112af30db2d8aac514b24ad6e8e6906f3636776a5b3c8e97959034a5288138

Aliases

arxiv: 1309.7701 · arxiv_version: 1309.7701v1 · doi: 10.48550/arxiv.1309.7701 · pith_short_12: 7UISV4YNWLMK · pith_short_16: 7UISV4YNWLMKVRIU · pith_short_8: 7UISV4YN

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/7UISV4YNWLMKVRIUWJFNN2HGSB \
  | 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: fd112af30db2d8aac514b24ad6e8e6906f3636776a5b3c8e97959034a5288138

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ec25aef4379e0eb0c9bf9ec666f1468da02c75adc7d4eb986fa3e862ff39027",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-09-30T01:28:56Z",
    "title_canon_sha256": "4fa6dd02a74b120ba7a5bc3569dc8ac76cd8aec80353ea3627f301a7a1e1ffd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7701",
    "kind": "arxiv",
    "version": 1
  }
}