Pith Number

pith:HG4QEPXI

pith:2025:HG4QEPXIZ6RMO4VJN7GJ5BSTBA

not attested not anchored not stored refs pending

The massive one-loop four-point string amplitude in pure spinor superspace

Carlos R. Mafra

arxiv:2508.09930 v1 · 2025-08-13 · 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{HG4QEPXIZ6RMO4VJN7GJ5BSTBA}

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	2026-07-05T11:53:24.534073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b9023ee8cfa2c772a96fcc9e8653082a9185f4aa25f32ab0de92880174a1c5

Aliases

arxiv: 2508.09930 · arxiv_version: 2508.09930v1 · doi: 10.48550/arxiv.2508.09930 · pith_short_12: HG4QEPXIZ6RM · pith_short_16: HG4QEPXIZ6RMO4VJ · pith_short_8: HG4QEPXI

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/HG4QEPXIZ6RMO4VJN7GJ5BSTBA \
  | 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: 39b9023ee8cfa2c772a96fcc9e8653082a9185f4aa25f32ab0de92880174a1c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad590118026027f8f638074121f0618d0c89259d7abc5480becf84067beb2eb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2025-08-13T16:31:09Z",
    "title_canon_sha256": "956c783deb56467ac167289d0749f30bb2e567c203f6057585cebd46f2ad0121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.09930",
    "kind": "arxiv",
    "version": 1
  }
}