Pith Number

pith:D2QFQ36I

pith:2011:D2QFQ36IFPQDL57BIKLDMGILXY

not attested not anchored not stored refs pending

One-Loop Helicity Amplitudes for ttbar Production at Hadron Colliders

Ralf Sattler, Simon Badger, Valery Yundin

arxiv:1101.5947 v2 · 2011-01-31 · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2QFQ36IFPQDL57BIKLDMGILXY}

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	2026-05-18T04:11:40.711893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea0586fc82be035f7e1429636190bbe1169dc6a3109e3776074a41aa5778678

Aliases

arxiv: 1101.5947 · arxiv_version: 1101.5947v2 · doi: 10.48550/arxiv.1101.5947 · pith_short_12: D2QFQ36IFPQD · pith_short_16: D2QFQ36IFPQDL57B · pith_short_8: D2QFQ36I

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/D2QFQ36IFPQDL57BIKLDMGILXY \
  | 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: 1ea0586fc82be035f7e1429636190bbe1169dc6a3109e3776074a41aa5778678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86c19406e9070df4ac1427d4d1bfb37a1c6efaddcfde9248959dc765b1b8531b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2011-01-31T13:16:21Z",
    "title_canon_sha256": "7658a87df034011af840a32444d5caacc0cf469a3460bc947bd30291a910412f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5947",
    "kind": "arxiv",
    "version": 2
  }
}