Pith Number

pith:4L565X6L

pith:2019:4L565X6LRYZZNTXII44XHKCTYP

not attested not anchored not stored refs pending

Algebraic cycles and Verra fourfolds

Robert Laterveer

arxiv:1906.04799 v1 · 2019-06-11 · 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{4L565X6LRYZZNTXII44XHKCTYP}

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	2026-05-17T23:43:32.238470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2fbeedfcb8e3396cee8473973a853c3c430d5cff208d4c6cb4572fb54655ab0

Aliases

arxiv: 1906.04799 · arxiv_version: 1906.04799v1 · doi: 10.48550/arxiv.1906.04799 · pith_short_12: 4L565X6LRYZZ · pith_short_16: 4L565X6LRYZZNTXI · pith_short_8: 4L565X6L

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/4L565X6LRYZZNTXII44XHKCTYP \
  | 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: e2fbeedfcb8e3396cee8473973a853c3c430d5cff208d4c6cb4572fb54655ab0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a084a9d15d9713cf8b5922dbfded5ea1603401beb2f33bf566fc060d2c1c2e13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-06-11T20:19:12Z",
    "title_canon_sha256": "0e8ba34a0df8f3b7f938794a9e059d023ee93b98e843b555f191b4a1a7c82954"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04799",
    "kind": "arxiv",
    "version": 1
  }
}