Pith Number

pith:Y3NNXQYN

pith:2013:Y3NNXQYNHQ2JN5CFKXCTSEYTZU

not attested not anchored not stored refs pending

The Feynman $i \epsilon$ in String Theory

Edward Witten

arxiv:1307.5124 v1 · 2013-07-19 · 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{Y3NNXQYNHQ2JN5CFKXCTSEYTZU}

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

4 papers in Pith

Aspects of strings without spacetime supersymmetry

Precision asymptotics of string amplitudes

Resurgence of high-energy string amplitudes

$c=1$ strings as a matrix integral

Receipt and verification

First computed	2026-05-18T03:18:05.632697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6dadbc30d3c3496f44555c5391313cd2bac59903c2709a6688341d626ec6224

Aliases

arxiv: 1307.5124 · arxiv_version: 1307.5124v1 · doi: 10.48550/arxiv.1307.5124 · pith_short_12: Y3NNXQYNHQ2J · pith_short_16: Y3NNXQYNHQ2JN5CF · pith_short_8: Y3NNXQYN

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/Y3NNXQYNHQ2JN5CFKXCTSEYTZU \
  | 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: c6dadbc30d3c3496f44555c5391313cd2bac59903c2709a6688341d626ec6224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0051791f6880f7c5dcc00481744242d5ddc5acda8ff13c8215351215dd8db5a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-07-19T04:08:03Z",
    "title_canon_sha256": "7a3e3f5790330dc5cf5092fa27f7ee57e73fa7173f9e14f743d09e9f243be678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5124",
    "kind": "arxiv",
    "version": 1
  }
}