Pith Number

pith:GRJH5QA2

pith:2021:GRJH5QA2E2FUXYNY72K36ONWQC

not attested not anchored not stored refs pending

Observing Light-by-Light Scattering in Vacuum with an Asymmetric Photon Collider

Christoph H. Keitel, Maitreyi Sangal, Matteo Tamburini

arxiv:2101.02671 v2 · 2021-01-07 · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GRJH5QA2E2FUXYNY72K36ONWQC}

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.

Cited by

1 paper in Pith

Coherent enhancement of QED cross-sections in electromagnetic backgrounds

Receipt and verification

First computed	2026-07-05T03:38:14.974735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34527ec01a268b4be1b8fe95bf39b6809cbf18124ee28ec631be78350e727b77

Aliases

arxiv: 2101.02671 · arxiv_version: 2101.02671v2 · doi: 10.48550/arxiv.2101.02671 · pith_short_12: GRJH5QA2E2FU · pith_short_16: GRJH5QA2E2FUXYNY · pith_short_8: GRJH5QA2

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/GRJH5QA2E2FUXYNY72K36ONWQC \
  | 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: 34527ec01a268b4be1b8fe95bf39b6809cbf18124ee28ec631be78350e727b77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af49f73df0019b382c86a3b0e01b0c6cf67684c0382c52b01388a0a82f73f611",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-01-07T18:29:43Z",
    "title_canon_sha256": "c690e0d004fac7e2ecd3c997750b1e296abe8c4fcd45f0e0b5816086f29ffddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.02671",
    "kind": "arxiv",
    "version": 2
  }
}