Pith Number

pith:Z4ZFRIDN

pith:2012:Z4ZFRIDN6LLHVFDYH52YPHYQZN

not attested not anchored not stored refs pending

Gravity Amplitudes from n-Space

Clifford Cheung

arxiv:1207.4458 v2 · 2012-07-18 · 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{Z4ZFRIDN6LLHVFDYH52YPHYQZN}

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	2026-05-18T01:56:16.716929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf3258a06df2d67a94783f75879f10cb7faecf24ce2dde94b3333378166db11c

Aliases

arxiv: 1207.4458 · arxiv_version: 1207.4458v2 · doi: 10.48550/arxiv.1207.4458 · pith_short_12: Z4ZFRIDN6LLH · pith_short_16: Z4ZFRIDN6LLHVFDY · pith_short_8: Z4ZFRIDN

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/Z4ZFRIDN6LLHVFDYH52YPHYQZN \
  | 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: cf3258a06df2d67a94783f75879f10cb7faecf24ce2dde94b3333378166db11c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e579fa43e77831166c2b326c80a5d4ff788eac2252efab22610811f57aff37f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-07-18T19:27:45Z",
    "title_canon_sha256": "67f671836899472db60ac1b9e5f3eaa1b7341aa2a16f8f2ad5b513de665a226b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4458",
    "kind": "arxiv",
    "version": 2
  }
}