Pith Number

pith:TXQQDIYO

pith:2012:TXQQDIYOFLM2LU6ZZBR2O3NXFS

not attested not anchored not stored refs pending

Unramified Brauer groups and isoclinism

Primoz Moravec

arxiv:1203.2422 v1 · 2012-03-12 · math.GR · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TXQQDIYOFLM2LU6ZZBR2O3NXFS}

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	2026-05-18T04:00:25.530895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9de101a30e2ad9a5d3d9c863a76db72cadfc9a19a155df7c649fc363874d0538

Aliases

arxiv: 1203.2422 · arxiv_version: 1203.2422v1 · doi: 10.48550/arxiv.1203.2422 · pith_short_12: TXQQDIYOFLM2 · pith_short_16: TXQQDIYOFLM2LU6Z · pith_short_8: TXQQDIYO

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/TXQQDIYOFLM2LU6ZZBR2O3NXFS \
  | 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: 9de101a30e2ad9a5d3d9c863a76db72cadfc9a19a155df7c649fc363874d0538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e61124da542a40b723a0d92126ac20f2b88b471627bf3dfa255d5eb89d4d4a4",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2012-03-12T08:17:49Z",
    "title_canon_sha256": "6e27827fd4e60c5a82a1fa90110c6980defa9ed673ee2233444541177a8ada7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2422",
    "kind": "arxiv",
    "version": 1
  }
}