pith. sign in
Pith Number

pith:HHKNZCWU

pith:2013:HHKNZCWUDYQO4GUXM34YHFMMNS
not attested not anchored not stored refs pending

Scattering amplitudes with off-shell quarks

A. van Hameren, K. Kutak, T. Salwa

arxiv:1308.2861 v3 · 2013-08-13 · hep-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{HHKNZCWUDYQO4GUXM34YHFMMNS}

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 2026-05-18T01:48:15.890335Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

39d4dc8ad41e20ee1a9766f983958c6cb068b75fa31add6b554b17fbc796f79e

Aliases

arxiv: 1308.2861 · arxiv_version: 1308.2861v3 · doi: 10.48550/arxiv.1308.2861 · pith_short_12: HHKNZCWUDYQO · pith_short_16: HHKNZCWUDYQO4GUX · pith_short_8: HHKNZCWU
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/HHKNZCWUDYQO4GUXM34YHFMMNS \
  | 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: 39d4dc8ad41e20ee1a9766f983958c6cb068b75fa31add6b554b17fbc796f79e
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "1d1646be6d35c5a88d840ffc8f1633561473836f9112a6a9c844cec90b83413b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-08-13T13:24:13Z",
    "title_canon_sha256": "e0f79c50ce1bd2606213de9453c1e69054a53c8ead39bc55aa419771318d4d62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2861",
    "kind": "arxiv",
    "version": 3
  }
}