Pith Number

pith:ZBEJXHTH

pith:2017:ZBEJXHTH6LG45UX4Y3YQ343WVG

not attested not anchored not stored refs pending

Models of Brauer-Severi surface bundles

Andrew Kresch, Yuri Tschinkel

arxiv:1708.06277 v1 · 2017-08-21 · 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{ZBEJXHTH6LG45UX4Y3YQ343WVG}

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	2026-05-18T00:37:42.759151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8489b9e67f2cdced2fcc6f10df376a9b82546694c5cf8054f30ad7712cb7d70

Aliases

arxiv: 1708.06277 · arxiv_version: 1708.06277v1 · doi: 10.48550/arxiv.1708.06277 · pith_short_12: ZBEJXHTH6LG4 · pith_short_16: ZBEJXHTH6LG45UX4 · pith_short_8: ZBEJXHTH

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/ZBEJXHTH6LG45UX4Y3YQ343WVG \
  | 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: c8489b9e67f2cdced2fcc6f10df376a9b82546694c5cf8054f30ad7712cb7d70

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99fc5d913b463adb14ef2e94c8fd3314c6e5938fe6789529ab02fdb8f14b79a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-08-21T15:14:11Z",
    "title_canon_sha256": "d8316da7369f2005f558c557d37e3be7e0c91a95104c3cccb1b0c1d8938b36f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06277",
    "kind": "arxiv",
    "version": 1
  }
}