Pith Number

pith:RB5LRLFY

pith:2009:RB5LRLFYEKQUZHSTAT767UYM3T

not attested not anchored not stored refs pending

Orthogonal subsets of classical root systems and coadjoint orbits of unipotent groups

Mikhail V. Ignatyev

arxiv:0904.2841 v3 · 2009-04-18 · 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{RB5LRLFYEKQUZHSTAT767UYM3T}

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	2026-05-18T03:10:37.853465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

887ab8acb822a14c9e5304ffefd30cdcded8eef6b5dc046903ad0c82e10e6194

Aliases

arxiv: 0904.2841 · arxiv_version: 0904.2841v3 · doi: 10.48550/arxiv.0904.2841 · pith_short_12: RB5LRLFYEKQU · pith_short_16: RB5LRLFYEKQUZHST · pith_short_8: RB5LRLFY

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/RB5LRLFYEKQUZHSTAT767UYM3T \
  | 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: 887ab8acb822a14c9e5304ffefd30cdcded8eef6b5dc046903ad0c82e10e6194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "408e7de36d79ad1235307f66ae86f50b2c46ef99310bea2ff31899c77c4360c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2009-04-18T16:46:47Z",
    "title_canon_sha256": "df213fe24df59b6b130d487d38a3bee31af6c8acf784c0917279b8b3912c6248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2841",
    "kind": "arxiv",
    "version": 3
  }
}