Pith Number

pith:DLD7435P

pith:2009:DLD7435P6XMAQZPLP4NBUI7CT3

not attested not anchored not stored refs pending

On Yangian and Long Representations of the Centrally Extended su(2|2) Superalgebra

Alessandro Torrielli, Gleb Arutyunov, Marius de Leeuw

arxiv:0912.0209 v2 · 2009-12-01 · hep-th · math.QA

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

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	2026-05-18T02:34:02.799533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ac7fe6faff5d80865eb7f1a1a23e29ec3ff4fda364af2f95a35debaab7faeca

Aliases

arxiv: 0912.0209 · arxiv_version: 0912.0209v2 · doi: 10.48550/arxiv.0912.0209 · pith_short_12: DLD7435P6XMA · pith_short_16: DLD7435P6XMAQZPL · pith_short_8: DLD7435P

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/DLD7435P6XMAQZPLP4NBUI7CT3 \
  | 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: 1ac7fe6faff5d80865eb7f1a1a23e29ec3ff4fda364af2f95a35debaab7faeca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6855910744858bf0ad351d82ac5d90ef2836aa3a80385c12d4dce806c0a8b9d8",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-12-01T17:17:55Z",
    "title_canon_sha256": "ddad899192e9d621a2cc4236285c823e181331a4eb41f87aa7791b0b2fe27a7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0209",
    "kind": "arxiv",
    "version": 2
  }
}