Pith Number

pith:5M4PNJLX

pith:2017:5M4PNJLXYRND7MSOQMNL2JSWD6

not attested not anchored not stored refs pending

Sums of three squares and Noether-Lefschetz loci

Olivier Benoist

arxiv:1706.02053 v2 · 2017-06-07 · 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{5M4PNJLXYRND7MSOQMNL2JSWD6}

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	2026-05-17T23:53:33.902922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb38f6a577c45a3fb24e831abd26561f84b408073f24feaea2257490fa2e5448

Aliases

arxiv: 1706.02053 · arxiv_version: 1706.02053v2 · doi: 10.48550/arxiv.1706.02053 · pith_short_12: 5M4PNJLXYRND · pith_short_16: 5M4PNJLXYRND7MSO · pith_short_8: 5M4PNJLX

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/5M4PNJLXYRND7MSOQMNL2JSWD6 \
  | 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: eb38f6a577c45a3fb24e831abd26561f84b408073f24feaea2257490fa2e5448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4e9edecbcb718dc840fac19ae15383ce579e74bbdf1a2a121cec252891690f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-06-07T05:51:18Z",
    "title_canon_sha256": "514b3d552c9184267f94c9963df550543974cd68d459e4144343add37a4eb49e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02053",
    "kind": "arxiv",
    "version": 2
  }
}