Pith Number

pith:W6DKLEFM

pith:2016:W6DKLEFMFZUFBD6CLCTQXI5QIM

not attested not anchored not stored refs pending

Del Pezzo surfaces over finite fields and their Frobenius traces

Barinder Banwait, Daniel Loughran, Francesc Fit\'e

arxiv:1606.00300 v2 · 2016-06-01 · 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{W6DKLEFMFZUFBD6CLCTQXI5QIM}

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	2026-05-17T23:42:31.247282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b786a590ac2e68508fc258a70ba3b0431f9f1d3c921ad0c5de32bee1b71219c7

Aliases

arxiv: 1606.00300 · arxiv_version: 1606.00300v2 · doi: 10.48550/arxiv.1606.00300 · pith_short_12: W6DKLEFMFZUF · pith_short_16: W6DKLEFMFZUFBD6C · pith_short_8: W6DKLEFM

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/W6DKLEFMFZUFBD6CLCTQXI5QIM \
  | 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: b786a590ac2e68508fc258a70ba3b0431f9f1d3c921ad0c5de32bee1b71219c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae2896e796c4251dc07da8088eee098c388094a930f07e981e179830bf539fab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-06-01T14:27:32Z",
    "title_canon_sha256": "732c601d32523cef1a09b07aa20453dd8fd2367c146a5d252f2ef4c6e0282de7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.00300",
    "kind": "arxiv",
    "version": 2
  }
}