Pith Number

pith:HDF23FRR

pith:2019:HDF23FRRWTJXDILT4HILAWXCY4

not attested not anchored not stored refs pending

Scattering amplitudes and contour deformations

Alfred Stadler, Gernot Eichmann, M. T. Pe\~na, Pedro Duarte

arxiv:1907.05402 v1 · 2019-07-11 · hep-ph · hep-th · nucl-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{HDF23FRRWTJXDILT4HILAWXCY4}

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

1 paper in Pith

The setting sun diagram with complex external momenta

Receipt and verification

First computed	2026-07-05T00:17:08.288211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38cbad9631b4d371a173e1d0b05ae2c701511496865e13dbc98d35e5353be0e3

Aliases

arxiv: 1907.05402 · arxiv_version: 1907.05402v1 · doi: 10.48550/arxiv.1907.05402 · pith_short_12: HDF23FRRWTJX · pith_short_16: HDF23FRRWTJXDILT · pith_short_8: HDF23FRR

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/HDF23FRRWTJXDILT4HILAWXCY4 \
  | 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: 38cbad9631b4d371a173e1d0b05ae2c701511496865e13dbc98d35e5353be0e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40b1633f684c60477546b32ca81570681c1ab0f48d0955c32bb3342ae3337a59",
    "cross_cats_sorted": [
      "hep-th",
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-07-11T17:33:17Z",
    "title_canon_sha256": "663d718571a9c6cb4c2ede70dfc1f6c31383aa0864872fc3816b959ea196bb96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05402",
    "kind": "arxiv",
    "version": 1
  }
}