Pith Number

pith:NR73DR4Y

pith:2015:NR73DR4YAZ3MDFCJOBMP7EAPOX

not attested not anchored not stored refs pending

Close hereditary C-algebras and the structure of quasi-multipliers

Lawrence G. Brown

arxiv:1501.07613 v2 · 2015-01-29 · 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{NR73DR4YAZ3MDFCJOBMP7EAPOX}

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	2026-05-18T01:27:16.102149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c7fb1c7980676c194497058ff900f75c10c2956ffd8c0ce31ce45bd41f20267

Aliases

arxiv: 1501.07613 · arxiv_version: 1501.07613v2 · doi: 10.48550/arxiv.1501.07613 · pith_short_12: NR73DR4YAZ3M · pith_short_16: NR73DR4YAZ3MDFCJ · pith_short_8: NR73DR4Y

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/NR73DR4YAZ3MDFCJOBMP7EAPOX \
  | 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: 6c7fb1c7980676c194497058ff900f75c10c2956ffd8c0ce31ce45bd41f20267

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e641cdb4dffffea08a9125f0e4b83df17b48dceed987a84af5312302f74dcdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2015-01-29T21:04:44Z",
    "title_canon_sha256": "d67a6d9d720fe7bd0eb9ead3c20a03e38e5d140d6537a68bce55b11eac938517"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07613",
    "kind": "arxiv",
    "version": 2
  }
}