Pith Number

pith:BNU7SKNN

pith:2014:BNU7SKNN3ZPFW3L6ETRO4C4UPY

not attested not anchored not stored refs pending

Tautological classes on the moduli space of hyperelliptic curves with rational tails

Mehdi Tavakol

arxiv:1406.7403 v2 · 2014-06-28 · 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{BNU7SKNN3ZPFW3L6ETRO4C4UPY}

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	2026-05-18T00:20:49.576769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b69f929adde5e5b6d7e24e2ee0b947e2c0bd9bbc03114a246cc8d9ac22efdcb

Aliases

arxiv: 1406.7403 · arxiv_version: 1406.7403v2 · doi: 10.48550/arxiv.1406.7403 · pith_short_12: BNU7SKNN3ZPF · pith_short_16: BNU7SKNN3ZPFW3L6 · pith_short_8: BNU7SKNN

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/BNU7SKNN3ZPFW3L6ETRO4C4UPY \
  | 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: 0b69f929adde5e5b6d7e24e2ee0b947e2c0bd9bbc03114a246cc8d9ac22efdcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0114812cbe92dd388a4aacba7b7719757c70cff10962767bb44a2002d1c5de2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-06-28T14:03:46Z",
    "title_canon_sha256": "b4830147c81de7cbe3217357b91c85b44e1b49c66163b6b9d3df20c89b2e962a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.7403",
    "kind": "arxiv",
    "version": 2
  }
}