Pith Number

pith:T7PCMJLI

pith:2005:T7PCMJLIG7OA43LU3O7EZHOOTW

not attested not anchored not stored refs pending

Lectures on Twistor Strings and Perturbative Yang-Mills Theory

Freddy Cachazo, Peter Svrcek

arxiv:hep-th/0504194 v1 · 2005-04-25 · 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{T7PCMJLIG7OA43LU3O7EZHOOTW}

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	2026-07-04T14:48:09.032742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fde26256837dc0e6d74dbbe4c9dce9d94f1b3c341a627ddc7d99f7651d4ef99

Aliases

arxiv: hep-th/0504194 · arxiv_version: hep-th/0504194v1 · doi: 10.48550/arxiv.hep-th/0504194 · pith_short_12: T7PCMJLIG7OA · pith_short_16: T7PCMJLIG7OA43LU · pith_short_8: T7PCMJLI

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/T7PCMJLIG7OA43LU3O7EZHOOTW \
  | 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: 9fde26256837dc0e6d74dbbe4c9dce9d94f1b3c341a627ddc7d99f7651d4ef99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53f3dca0073ef861529e257ff6d69d1ed05375c149c7759366b407aecaee439a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2005-04-25T01:21:42Z",
    "title_canon_sha256": "0e2f7795941c89ad52a78465ced60ae5014142843491549a8fd88ed114461df3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0504194",
    "kind": "arxiv",
    "version": 1
  }
}