Pith Number

pith:P5FZ4OTE

pith:2024:P5FZ4OTEN7AOP2OLSSCJYEX2IH

not attested not anchored not stored refs pending

Joyce structures and their twistor spaces

Tom Bridgeland

arxiv:2407.18229 v2 · 2024-07-25 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P5FZ4OTEN7AOP2OLSSCJYEX2IH}

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

Schwarzschild black holes from twistor space

Receipt and verification

First computed	2026-07-05T09:48:54.290371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f4b9e3a646fc0e7e9cb94849c12fa41c91adcdc91e709fd2063b61e614323a7

Aliases

arxiv: 2407.18229 · arxiv_version: 2407.18229v2 · doi: 10.48550/arxiv.2407.18229 · pith_short_12: P5FZ4OTEN7AO · pith_short_16: P5FZ4OTEN7AOP2OL · pith_short_8: P5FZ4OTE

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/P5FZ4OTEN7AOP2OLSSCJYEX2IH \
  | 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: 7f4b9e3a646fc0e7e9cb94849c12fa41c91adcdc91e709fd2063b61e614323a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d7d80d723c2e3787b5f04f37851c1d2ad450b934e8e2212ea917d0848450da",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2024-07-25T17:48:43Z",
    "title_canon_sha256": "a15526b9c5c339f9d2bfafde41db89c5eb4f214458e5f330f35ab10863a49a99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.18229",
    "kind": "arxiv",
    "version": 2
  }
}