Pith Number

pith:5FUOFW66

pith:2022:5FUOFW666FJV5QFL56CA3WYWLX

not attested not anchored not stored refs pending

FeynGrav : FeynCalc extension for gravity amplitudes

Boris Latosh

arxiv:2201.06812 v4 · 2022-01-18 · 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{5FUOFW666FJV5QFL56CA3WYWLX}

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	2026-07-05T04:42:33.330967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e968e2dbdef1535ec0abef840ddb165dd1c5bf706b7626ba28810562e878d13e

Aliases

arxiv: 2201.06812 · arxiv_version: 2201.06812v4 · doi: 10.48550/arxiv.2201.06812 · pith_short_12: 5FUOFW666FJV · pith_short_16: 5FUOFW666FJV5QFL · pith_short_8: 5FUOFW66

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/5FUOFW666FJV5QFL56CA3WYWLX \
  | 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: e968e2dbdef1535ec0abef840ddb165dd1c5bf706b7626ba28810562e878d13e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1988ddb5f90a6a817f68d1c23e1fc931f8c7d32a149501e00feee4296c347de5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2022-01-18T08:31:44Z",
    "title_canon_sha256": "18331a80ec00afd4f4482d3fb75bc38e54b3bb4603bd5593d00df6f77587a745"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.06812",
    "kind": "arxiv",
    "version": 4
  }
}