Pith Number

pith:5KMWJQ6E

pith:2017:5KMWJQ6EWTXCBBREYIBUTJHXXB

not attested not anchored not stored refs pending

Perturbative effective action for the photon in noncommutative QED$_{2}$ and exactness of the Schwinger mass

A. A. Varshovi, M. Ghasemkhani, R. Bufalo

arxiv:1707.09739 v2 · 2017-07-31 · 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{5KMWJQ6EWTXCBBREYIBUTJHXXB}

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	2026-05-18T00:21:51.104347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea9964c3c4b4ee208624c20349a4f7b86ed84e08c02e64fc7626bd1b30668810

Aliases

arxiv: 1707.09739 · arxiv_version: 1707.09739v2 · doi: 10.48550/arxiv.1707.09739 · pith_short_12: 5KMWJQ6EWTXC · pith_short_16: 5KMWJQ6EWTXCBBRE · pith_short_8: 5KMWJQ6E

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/5KMWJQ6EWTXCBBREYIBUTJHXXB \
  | 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: ea9964c3c4b4ee208624c20349a4f7b86ed84e08c02e64fc7626bd1b30668810

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fadc6f1b69a53b031334b278e8880792e7f2b4cbb6e876fe3e8d903e30cdba81",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-07-31T07:15:22Z",
    "title_canon_sha256": "1678c576adeef23fa2b26f89192763614bf062716b1154416563007d583b3daf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.09739",
    "kind": "arxiv",
    "version": 2
  }
}