Pith Number

pith:OUHSHZJR

pith:2019:OUHSHZJRFW52QVADV7SD6FCX5A

not attested not anchored not stored refs pending

Families of stable bundles on the fibres of the hyperk\"ahler twistor projection

Artour Tomberg

arxiv:1908.05333 v1 · 2019-08-14 · math.AG · 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{OUHSHZJRFW52QVADV7SD6FCX5A}

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	2026-07-04T23:56:50.278258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

750f23e5312dbba85403afe43f1457e80e85ad15946d9b93d1b594633ca66cfe

Aliases

arxiv: 1908.05333 · arxiv_version: 1908.05333v1 · doi: 10.48550/arxiv.1908.05333 · pith_short_12: OUHSHZJRFW52 · pith_short_16: OUHSHZJRFW52QVAD · pith_short_8: OUHSHZJR

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/OUHSHZJRFW52QVADV7SD6FCX5A \
  | 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: 750f23e5312dbba85403afe43f1457e80e85ad15946d9b93d1b594633ca66cfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3c7975808f5e1f4e4b880eba8236d87ea62091bde92c81bf193d7c840af26de",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-08-14T20:10:51Z",
    "title_canon_sha256": "9b8566d7961fdf642789c434047cc0bc636c33329e4fa55f8038e715ed359a93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05333",
    "kind": "arxiv",
    "version": 1
  }
}