Pith Number

pith:MQDG4IDO

pith:2018:MQDG4IDOQOIA726UJ44NO5FHIV

not attested not anchored not stored refs pending

Degree three invariants for semisimple groups of types $B$, $C$, and $D$

Sanghoon Baek

arxiv:1801.08845 v4 · 2018-01-26 · 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{MQDG4IDOQOIA726UJ44NO5FHIV}

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	2026-05-17T23:47:49.113031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64066e206e83900febd44f38d774a745560d9d6536c3d5a8df8bcabafb8d9fd6

Aliases

arxiv: 1801.08845 · arxiv_version: 1801.08845v4 · doi: 10.48550/arxiv.1801.08845 · pith_short_12: MQDG4IDOQOIA · pith_short_16: MQDG4IDOQOIA726U · pith_short_8: MQDG4IDO

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/MQDG4IDOQOIA726UJ44NO5FHIV \
  | 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: 64066e206e83900febd44f38d774a745560d9d6536c3d5a8df8bcabafb8d9fd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25f7ba98202a5c39ec18b1b3d13fb0bcf7792fb9332de00e74953764e98a122c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-01-26T15:22:50Z",
    "title_canon_sha256": "c0ec821edcd9819c8a849ca2f3022e78e27d89bacfaf070730cec976f70c29cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08845",
    "kind": "arxiv",
    "version": 4
  }
}