Pith Number

pith:627M64PU

pith:2018:627M64PUGYLE4QQDWCUKLSDFSG

not attested not anchored not stored refs pending

Positive helicity Einstein-Yang-Mills amplitudes from the Double Copy

Jan Plefka, Josua Faller

arxiv:1812.04053 v3 · 2018-12-10 · 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{627M64PUGYLE4QQDWCUKLSDFSG}

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	2026-05-17T23:53:23.697595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6becf71f436164e4203b0a8a5c8659191687d0d528b5a6edd04caba616d25ce

Aliases

arxiv: 1812.04053 · arxiv_version: 1812.04053v3 · doi: 10.48550/arxiv.1812.04053 · pith_short_12: 627M64PUGYLE · pith_short_16: 627M64PUGYLE4QQD · pith_short_8: 627M64PU

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/627M64PUGYLE4QQDWCUKLSDFSG \
  | 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: f6becf71f436164e4203b0a8a5c8659191687d0d528b5a6edd04caba616d25ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf7cdb7e614209d622b099c8289664efd5c250a71d5ed814c035b3ea6edf6bd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-12-10T19:42:43Z",
    "title_canon_sha256": "91853a168ec0cfeaa4c30879f2d164e5a9f4df0da4733774593a4cb62d3a0747"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04053",
    "kind": "arxiv",
    "version": 3
  }
}