Pith Number

pith:RRDPYQIZ

pith:2009:RRDPYQIZNL5G2LT6KHAS4GE4B5

not attested not anchored not stored refs pending

Twistor-Strings, Grassmannians and Leading Singularities

David Skinner, Lionel Mason, Mathew Bullimore

arxiv:0912.0539 v3 · 2009-12-03 · 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{RRDPYQIZNL5G2LT6KHAS4GE4B5}

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.

Cited by

1 paper in Pith

Bootstrapping the Four-Point NMHV Stress-Tensor Form Factor

Receipt and verification

First computed	2026-05-18T02:34:02.496484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c46fc41196afa6d2e7e51c12e189c0f58b36cd5e48392c1d69a016e951516a5

Aliases

arxiv: 0912.0539 · arxiv_version: 0912.0539v3 · doi: 10.48550/arxiv.0912.0539 · pith_short_12: RRDPYQIZNL5G · pith_short_16: RRDPYQIZNL5G2LT6 · pith_short_8: RRDPYQIZ

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/RRDPYQIZNL5G2LT6KHAS4GE4B5 \
  | 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: 8c46fc41196afa6d2e7e51c12e189c0f58b36cd5e48392c1d69a016e951516a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b858c7c099b522ddba3e00cebcf18fa396852768cd7c9f75f20eed6d368ca61f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-12-03T20:05:06Z",
    "title_canon_sha256": "af1658edbdecc2b42b04c5677ef7ee538401e39e14e8dad60469e09df690151e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0539",
    "kind": "arxiv",
    "version": 3
  }
}