Pith Number

pith:J3E5GEDW

pith:2007:J3E5GEDW25DU3YC3WLFSNN23FJ

not attested not anchored not stored refs pending

Twistors and Black Holes

Andrew Neitzke, Boris Pioline, Stefan Vandoren

arxiv:hep-th/0701214 v3 · 2007-01-23 · hep-th · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3E5GEDW25DU3YC3WLFSNN23FJ}

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	2026-05-18T04:38:25.091475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ec9d31076d7474de05bb2cb26b75b2a447ec36c45940a9b3522615422cc02cf

Aliases

arxiv: hep-th/0701214 · arxiv_version: hep-th/0701214v3 · doi: 10.48550/arxiv.hep-th/0701214 · pith_short_12: J3E5GEDW25DU · pith_short_16: J3E5GEDW25DU3YC3 · pith_short_8: J3E5GEDW

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/J3E5GEDW25DU3YC3WLFSNN23FJ \
  | 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: 4ec9d31076d7474de05bb2cb26b75b2a447ec36c45940a9b3522615422cc02cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "950fbc20229a89d4b6bad446b930be7cddf3825f121b2309d1e16cfc7f949d7c",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2007-01-23T13:25:38Z",
    "title_canon_sha256": "ce51261d2aef0a8a10bbd9baebbdbebbc26428618ae6bd360498b880b8195884"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0701214",
    "kind": "arxiv",
    "version": 3
  }
}