Pith Number

pith:KREQ6M7D

pith:2002:KREQ6M7DRSHBEKL6OMLEIMNSEV

not attested not anchored not stored refs pending

Quantisation of \theta-expanded non-commutative QED

Jesper M. Grimstrup (Vienna), Raimar Wulkenhaar (Leipzig)

arxiv:hep-th/0205153 v1 · 2002-05-15 · 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{KREQ6M7DRSHBEKL6OMLEIMNSEV}

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	2026-05-18T04:13:16.903438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54490f33e38c8e12297e73164431b2257d9481d00583c590ddde3884633e528b

Aliases

arxiv: hep-th/0205153 · arxiv_version: hep-th/0205153v1 · doi: 10.48550/arxiv.hep-th/0205153 · pith_short_12: KREQ6M7DRSHB · pith_short_16: KREQ6M7DRSHBEKL6 · pith_short_8: KREQ6M7D

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/KREQ6M7DRSHBEKL6OMLEIMNSEV \
  | 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: 54490f33e38c8e12297e73164431b2257d9481d00583c590ddde3884633e528b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f294ee30e7645ad5b6273c80777ebe62a05f809fb15247dd3da065e3e41aa27",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-05-15T15:50:20Z",
    "title_canon_sha256": "873fab53ae357ea3b52a81a5c402dc93a476a74e78cd72c5b4b1d18ed9fa14dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0205153",
    "kind": "arxiv",
    "version": 1
  }
}