Pith Number

pith:MDUVTPRM

pith:2019:MDUVTPRMFOBQSXEQVLWHYCH6KV

not attested not anchored not stored refs pending

Some properties of a Brauer class

Qixiao Ma

arxiv:1908.03131 v1 · 2019-08-08 · math.AG · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MDUVTPRMFOBQSXEQVLWHYCH6KV}

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	2026-07-04T23:52:26.267924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60e959be2c2b83095c90aaec7c08fe55460c53275d3d6b8d156be370ff30943e

Aliases

arxiv: 1908.03131 · arxiv_version: 1908.03131v1 · doi: 10.48550/arxiv.1908.03131 · pith_short_12: MDUVTPRMFOBQ · pith_short_16: MDUVTPRMFOBQSXEQ · pith_short_8: MDUVTPRM

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/MDUVTPRMFOBQSXEQVLWHYCH6KV \
  | 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: 60e959be2c2b83095c90aaec7c08fe55460c53275d3d6b8d156be370ff30943e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a999b0d960a4685e941a4b1a3835b60462bf5e2fcffb7335eea510ac8ec7683d",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-08-08T15:45:31Z",
    "title_canon_sha256": "ce0a97faaa642961831d46360b65b7a78599be26c562384c08d5c8585451845d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03131",
    "kind": "arxiv",
    "version": 1
  }
}