Pith Number

pith:JL52RPYN

pith:2013:JL52RPYN3FRP2EC445UQQK5POX

not attested not anchored not stored refs pending

Second Cohomology of q-deformed Witt superalgebras

Abdenacer Makhlouf, Faouzi Ammar, Nejib Saadaoui

arxiv:1301.2704 v1 · 2013-01-12 · math.RA · 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{JL52RPYN3FRP2EC445UQQK5POX}

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	2026-05-18T01:52:13.009419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4afba8bf0dd962fd105ce769082baf75dfa1112050c21287ac5935c037429648

Aliases

arxiv: 1301.2704 · arxiv_version: 1301.2704v1 · doi: 10.48550/arxiv.1301.2704 · pith_short_12: JL52RPYN3FRP · pith_short_16: JL52RPYN3FRP2EC4 · pith_short_8: JL52RPYN

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/JL52RPYN3FRP2EC445UQQK5POX \
  | 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: 4afba8bf0dd962fd105ce769082baf75dfa1112050c21287ac5935c037429648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23d7ced7adb884d29fd4c08931d2f8437177664fe59c466d387c290b379b611c",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-01-12T18:32:15Z",
    "title_canon_sha256": "fdac4533ee52bfff2f6f515e01d10b136559799d225ee1d4ae816f23d6b77959"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2704",
    "kind": "arxiv",
    "version": 1
  }
}