Pith Number

pith:SZDQM65V

pith:2013:SZDQM65V44YFQV63KZKT4VTFTY

not attested not anchored not stored refs pending

Multi-loop open string amplitudes and their field theory limit

Lorenzo Magnea, Rodolfo Russo, Sam Playle, Stefano Sciuto

arxiv:1305.6631 v3 · 2013-05-28 · hep-th · 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{SZDQM65V44YFQV63KZKT4VTFTY}

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	2026-05-18T01:49:40.590304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9647067bb5e7305857db56553e56659e1b1c861c7dd592ccaeb3876421b8d334

Aliases

arxiv: 1305.6631 · arxiv_version: 1305.6631v3 · doi: 10.48550/arxiv.1305.6631 · pith_short_12: SZDQM65V44YF · pith_short_16: SZDQM65V44YFQV63 · pith_short_8: SZDQM65V

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/SZDQM65V44YFQV63KZKT4VTFTY \
  | 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: 9647067bb5e7305857db56553e56659e1b1c861c7dd592ccaeb3876421b8d334

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc3f79a71f14b4b5e6979995cb14c81a5c401ee6670859939def9829da1ad441",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-05-28T21:01:40Z",
    "title_canon_sha256": "7365402d8f85a832a136d10109c07fc895eb94ca0112b7d31e48f5a8dd99ab6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6631",
    "kind": "arxiv",
    "version": 3
  }
}