Pith Number

pith:ZNUE5RLM

pith:1992:ZNUE5RLMEOO2M5LOJXUSQXARWY

not attested not anchored not stored refs pending

Bicovariant Differential Calculus on the Quantum D=2 Poincare Group

Leonardo Castellani

arxiv:hep-th/9201016 v2 · 1992-01-09 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNUE5RLMEOO2M5LOJXUSQXARWY}

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	2026-07-04T15:55:18.696451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb684ec56c239da6756e4de9285c11b60e13de81e407189a2b2090e70e3cdab6

Aliases

arxiv: hep-th/9201016 · arxiv_version: hep-th/9201016v2 · doi: 10.48550/arxiv.hep-th/9201016 · pith_short_12: ZNUE5RLMEOO2 · pith_short_16: ZNUE5RLMEOO2M5LO · pith_short_8: ZNUE5RLM

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/ZNUE5RLMEOO2M5LOJXUSQXARWY \
  | 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: cb684ec56c239da6756e4de9285c11b60e13de81e407189a2b2090e70e3cdab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16535ee4c173cfe34113c586e00a176988a1b99d88edc47d107c1598c8730f3b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1992-01-09T17:50:00Z",
    "title_canon_sha256": "f0c2fbf502ca02585f9e685daa9ad473f4b2bbf71b93f4489da839ffa278d00b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9201016",
    "kind": "arxiv",
    "version": 2
  }
}