Pith Number

pith:DGUB5PRQ

pith:2017:DGUB5PRQDLKRKG556LCFJ7X4CA

not attested not anchored not stored refs pending

Polarized double-virtual amplitudes for heavy-quark pair production

L. Chen, M. Czakon, R. Poncelet

arxiv:1712.08075 v2 · 2017-12-21 · 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{DGUB5PRQDLKRKG556LCFJ7X4CA}

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	2026-05-18T00:18:14.350419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19a81ebe301ad5151bbdf2c454fefc1038bda34d89427ac53bcf5b171c0c1759

Aliases

arxiv: 1712.08075 · arxiv_version: 1712.08075v2 · doi: 10.48550/arxiv.1712.08075 · pith_short_12: DGUB5PRQDLKR · pith_short_16: DGUB5PRQDLKRKG55 · pith_short_8: DGUB5PRQ

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/DGUB5PRQDLKRKG556LCFJ7X4CA \
  | 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: 19a81ebe301ad5151bbdf2c454fefc1038bda34d89427ac53bcf5b171c0c1759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10d020a54ee98f3326183651f973f1d596b4f8e5792551d9085a1e4e21174ed7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2017-12-21T16:47:07Z",
    "title_canon_sha256": "e1499b6a98102f73c24f84715d0d50bafd93acd04bd5d24a01384b57cb9d681d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.08075",
    "kind": "arxiv",
    "version": 2
  }
}