Pith Number

pith:POO7EYZM

pith:2003:POO7EYZMUNQ6YBSOJL5DB4HDRF

not attested not anchored not stored refs pending

Twistor theory of hyper-K{\"a}hler metrics with hidden symmetries

Lionel J. Mason, Maciej Dunajski

arxiv:math/0301171 v2 · 2003-01-16 · math.DG · gr-qc · hep-th · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{POO7EYZMUNQ6YBSOJL5DB4HDRF}

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

Quasi-Local Celestial Charges and Multipoles

Receipt and verification

First computed	2026-05-18T01:38:29.241792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b9df2632ca361ec064e4afa30f0e3894bcd878a953bd053341d8382edc4d809

Aliases

arxiv: math/0301171 · arxiv_version: math/0301171v2 · doi: 10.48550/arxiv.math/0301171 · pith_short_12: POO7EYZMUNQ6 · pith_short_16: POO7EYZMUNQ6YBSO · pith_short_8: POO7EYZM

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/POO7EYZMUNQ6YBSOJL5DB4HDRF \
  | 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: 7b9df2632ca361ec064e4afa30f0e3894bcd878a953bd053341d8382edc4d809

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95793eac1f066609283f6a2410f1bd24d4ae095cd9b86c400b30b3559b00ea3f",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th",
      "nlin.SI"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2003-01-16T14:54:50Z",
    "title_canon_sha256": "d34836c77d7c77ca6dc2aa8712972c26fb5a765a6adbde9de77dab14dbc89d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0301171",
    "kind": "arxiv",
    "version": 2
  }
}