Pith Number

pith:OMY7ULXD

pith:2017:OMY7ULXDJEPDJTDG2P6FJCY5CS

not attested not anchored not stored refs pending

The singular locus of hypersurface sections containing a closed subscheme over finite fields

Franziska Wutz

arxiv:1704.08108 v1 · 2017-04-26 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OMY7ULXDJEPDJTDG2P6FJCY5CS}

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	2026-05-18T00:45:31.123932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7331fa2ee3491e34cc66d3fc548b1d14af172e5a5cc87e19ee0aa3600566eab1

Aliases

arxiv: 1704.08108 · arxiv_version: 1704.08108v1 · doi: 10.48550/arxiv.1704.08108 · pith_short_12: OMY7ULXDJEPD · pith_short_16: OMY7ULXDJEPDJTDG · pith_short_8: OMY7ULXD

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/OMY7ULXDJEPDJTDG2P6FJCY5CS \
  | 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: 7331fa2ee3491e34cc66d3fc548b1d14af172e5a5cc87e19ee0aa3600566eab1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd290fadc3d3d8e2433a9c790eb4d0ce61f1bf7f15656c580594232249473215",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-04-26T13:40:32Z",
    "title_canon_sha256": "b577a0d047a6c592b8c93b3fb315ed153cc7f3a580b08e74e7e86178ea891213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08108",
    "kind": "arxiv",
    "version": 1
  }
}