Pith Number

pith:OYXWWQF2

pith:2015:OYXWWQF2MSK76LBZ4XQQ7S3QX7

not attested not anchored not stored refs pending

A reduction of canonical stability index of 4 and 5 dimensional projective varieties with large volume

Meng Chen, Zhi Jiang

arxiv:1504.03939 v5 · 2015-04-15 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OYXWWQF2MSK76LBZ4XQQ7S3QX7}

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	2026-05-18T00:52:08.644911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

762f6b40ba6495ff2c39e5e10fcb70bfcf6ec145e99be191eda24565a04c5e71

Aliases

arxiv: 1504.03939 · arxiv_version: 1504.03939v5 · doi: 10.48550/arxiv.1504.03939 · pith_short_12: OYXWWQF2MSK7 · pith_short_16: OYXWWQF2MSK76LBZ · pith_short_8: OYXWWQF2

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/OYXWWQF2MSK76LBZ4XQQ7S3QX7 \
  | 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: 762f6b40ba6495ff2c39e5e10fcb70bfcf6ec145e99be191eda24565a04c5e71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3e248ea18c3c143c42b78d958bb10105e688958d6b89df8d7a4a4b29514fd94",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-04-15T15:12:50Z",
    "title_canon_sha256": "fcf94c60e4884ece811002087eed5a46ad82f877c273f035c6b4807b755b02cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03939",
    "kind": "arxiv",
    "version": 5
  }
}