Pith Number

pith:BE7CZDRA

pith:2018:BE7CZDRAV42645MZ5DT3H5C7OT

not attested not anchored not stored refs pending

An observation on the module structure of block algebras

Matthew Gelvin

arxiv:1804.08158 v1 · 2018-04-22 · math.GR · 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{BE7CZDRAV42645MZ5DT3H5C7OT}

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	2026-05-18T00:17:49.377355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

093e2c8e20af35ee7599e8e7b3f45f74fbe2cea9ea0f5a0801c08f527f564e32

Aliases

arxiv: 1804.08158 · arxiv_version: 1804.08158v1 · doi: 10.48550/arxiv.1804.08158 · pith_short_12: BE7CZDRAV426 · pith_short_16: BE7CZDRAV42645MZ · pith_short_8: BE7CZDRA

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/BE7CZDRAV42645MZ5DT3H5C7OT \
  | 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: 093e2c8e20af35ee7599e8e7b3f45f74fbe2cea9ea0f5a0801c08f527f564e32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b7447ec3864f89be60b31bde3229bd0ac838ce528b8710cc6e61e3c0b193aef",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2018-04-22T19:56:24Z",
    "title_canon_sha256": "a2593007d883e810e61e590012812bab08a3933ab2fa6939a35d486d8841e7a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08158",
    "kind": "arxiv",
    "version": 1
  }
}