Pith Number

pith:JPPNYB7A

pith:2019:JPPNYB7A47LMT5DATYTNBOBFAQ

not attested not anchored not stored refs pending

Higher-order tree-level amplitudes in the nonlinear sigma model

Johan Bijnens, Karol Kampf, Mattias Sj\"o

arxiv:1909.13684 v1 · 2019-09-30 · 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{JPPNYB7A47LMT5DATYTNBOBFAQ}

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

Soft Factor Structure of MHV Amplitudes for Massless Charged Particles

Receipt and verification

First computed	2026-07-05T00:30:26.247035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bdedc07e0e7d6c9f4609e26d0b8250409cd4383d9ab2e956ed95a3af9661fd6

Aliases

arxiv: 1909.13684 · arxiv_version: 1909.13684v1 · doi: 10.48550/arxiv.1909.13684 · pith_short_12: JPPNYB7A47LM · pith_short_16: JPPNYB7A47LMT5DA · pith_short_8: JPPNYB7A

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/JPPNYB7A47LMT5DATYTNBOBFAQ \
  | 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: 4bdedc07e0e7d6c9f4609e26d0b8250409cd4383d9ab2e956ed95a3af9661fd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85448fdc535846f98c9aac20a404ed873c45ab98d29a9a304326c6f609a79811",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-09-30T13:30:30Z",
    "title_canon_sha256": "75988e0fa5075a9389426318d84fa424f1c736641c62247633f554dddc9b067e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.13684",
    "kind": "arxiv",
    "version": 1
  }
}