Pith Number

pith:HUSYD24S

pith:2009:HUSYD24SP4LEILCLC7ZEZFYTCX

not attested not anchored not stored refs pending

Two descriptions of the quantum affine algebra $U_v(\hat{\mathfrak{sl}}_2)$ via Hall algebra approach

Igor Burban, Olivier Schiffmann

arxiv:0903.4828 v4 · 2009-03-27 · math.RT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUSYD24SP4LEILCLC7ZEZFYTCX}

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	2026-05-18T01:36:21.373198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d2581eb927f16442c4b17f24c971315ea48f6f7d52f52480d5de75e5c4aa5df

Aliases

arxiv: 0903.4828 · arxiv_version: 0903.4828v4 · doi: 10.48550/arxiv.0903.4828 · pith_short_12: HUSYD24SP4LE · pith_short_16: HUSYD24SP4LEILCL · pith_short_8: HUSYD24S

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/HUSYD24SP4LEILCLC7ZEZFYTCX \
  | 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: 3d2581eb927f16442c4b17f24c971315ea48f6f7d52f52480d5de75e5c4aa5df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c58eb0826eb9c8fa27738f2a4e1547132a0cacbd5293968beadc09150bb74ea",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RT",
    "submitted_at": "2009-03-27T15:33:04Z",
    "title_canon_sha256": "735961a203e46f2c771ee0ebf201cf55eb944a5d6bb2a467feb5b5622f5b101f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4828",
    "kind": "arxiv",
    "version": 4
  }
}