Pith Number

pith:5MW7GK4X

pith:2002:5MW7GK4XUZWSR37MGKLVCZQA5A

not attested not anchored not stored refs pending

Noncommutative projective curves and quantum loop algebras

Olivier Schiffmann

arxiv:math/0205267 v3 · 2002-05-25 · math.QA · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5MW7GK4XUZWSR37MGKLVCZQA5A}

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	2026-07-04T14:36:13.723111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb2df32b97a66d28efec3297516600e80686dcbcb4acb33544ab25e20c355a0c

Aliases

arxiv: math/0205267 · arxiv_version: math/0205267v3 · doi: 10.48550/arxiv.math/0205267 · pith_short_12: 5MW7GK4XUZWS · pith_short_16: 5MW7GK4XUZWSR37M · pith_short_8: 5MW7GK4X

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/5MW7GK4XUZWSR37MGKLVCZQA5A \
  | 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: eb2df32b97a66d28efec3297516600e80686dcbcb4acb33544ab25e20c355a0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7395c4fef0df0f018f473b21a5f0525ff32e2db4cbb57af53b7215ce55633cac",
    "cross_cats_sorted": [
      "math.RA"
    ],
    "license": "",
    "primary_cat": "math.QA",
    "submitted_at": "2002-05-25T18:48:11Z",
    "title_canon_sha256": "8791f0a6429a37e4193ac1ef289ab57fc777048bf12dcfd6a722a2f59af80c77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0205267",
    "kind": "arxiv",
    "version": 3
  }
}