Pith Number

pith:7FRC5NCJ

pith:2011:7FRC5NCJLQPZA6QXI6TUILZ467

not attested not anchored not stored refs pending

Unirationality of Hurwitz spaces of coverings of degree <= 5

Vassil Kanev

arxiv:1106.1006 v6 · 2011-06-06 · 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{7FRC5NCJLQPZA6QXI6TUILZ467}

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	2026-05-18T00:58:43.430962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9622eb4495c1f907a1747a7442f3cf7c5dcc104793246304925dc8a104888d8

Aliases

arxiv: 1106.1006 · arxiv_version: 1106.1006v6 · doi: 10.48550/arxiv.1106.1006 · pith_short_12: 7FRC5NCJLQPZ · pith_short_16: 7FRC5NCJLQPZA6QX · pith_short_8: 7FRC5NCJ

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/7FRC5NCJLQPZA6QXI6TUILZ467 \
  | 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: f9622eb4495c1f907a1747a7442f3cf7c5dcc104793246304925dc8a104888d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8513c5612d8b14722333b7f3018d2942dedd28dd51bc444b30c8e2b3fbf7567",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-06-06T10:21:19Z",
    "title_canon_sha256": "d81667d9988b342e974d2b2159418e6eebbaa4c4f8930778894ce7a9e4df7d3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.1006",
    "kind": "arxiv",
    "version": 6
  }
}