Pith Number

pith:QMEQCG2K

pith:2020:QMEQCG2KFW4AC7LUY5YUGJU7JM

not attested not anchored not stored refs pending

Back-reaction in strong field QED: a toy model

Anton Ilderton, Robin Ekman

arxiv:2002.03759 v2 · 2020-02-10 · 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{QMEQCG2KFW4AC7LUY5YUGJU7JM}

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	2026-07-05T00:53:45.286739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8309011b4a2db8017d74c77143269f4b0266c407c450a41a6954a32c5ebdd25f

Aliases

arxiv: 2002.03759 · arxiv_version: 2002.03759v2 · doi: 10.48550/arxiv.2002.03759 · pith_short_12: QMEQCG2KFW4A · pith_short_16: QMEQCG2KFW4AC7LU · pith_short_8: QMEQCG2K

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/QMEQCG2KFW4AC7LUY5YUGJU7JM \
  | 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: 8309011b4a2db8017d74c77143269f4b0266c407c450a41a6954a32c5ebdd25f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "673c09554b0456fc01dce86d16d00d1f193d6adfd5b04dd8c825d543e7f831ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2020-02-10T14:07:57Z",
    "title_canon_sha256": "ad3024dceb64cd0380152fc4c806feac1c21d4cc037401a9e8ce1fc24cfdbd93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.03759",
    "kind": "arxiv",
    "version": 2
  }
}