Pith Number

pith:LYW6ARGZ

pith:2026:LYW6ARGZ7ZFOPIRSVDOJPSCO2B

not attested not anchored not stored refs pending

General position on Severi--Brauer surfaces

Jack Ritschel

arxiv:2606.27940 v1 · 2026-06-26 · 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{LYW6ARGZ7ZFOPIRSVDOJPSCO2B}

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	2026-06-29T01:14:53.300470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e2de044d9fe4ae7a232a8dc97c84ed0761f1c81fc00af3f58581036159a8bd5

Aliases

arxiv: 2606.27940 · arxiv_version: 2606.27940v1 · doi: 10.48550/arxiv.2606.27940 · pith_short_12: LYW6ARGZ7ZFO · pith_short_16: LYW6ARGZ7ZFOPIRS · pith_short_8: LYW6ARGZ

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/LYW6ARGZ7ZFOPIRSVDOJPSCO2B \
  | 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: 5e2de044d9fe4ae7a232a8dc97c84ed0761f1c81fc00af3f58581036159a8bd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faeeef46dc796dee949515d388e6df6f2196033a88a1d6b168ce4fe494e60c49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-06-26T10:30:17Z",
    "title_canon_sha256": "367a99c9fc94e95ca1dd8cd80bc2b52a792b03d9e28eb9433ba57ecf338a5e81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27940",
    "kind": "arxiv",
    "version": 1
  }
}