Pith Number

pith:CJ6ET4US

pith:2007:CJ6ET4USYDNYFHY5BEVDDN7PL6

not attested not anchored not stored refs pending

Ramification of Quaternion Algebras over Stable Elliptic Surfaces

Arvid Perego

arxiv:math/0701297 v1 · 2007-01-10 · 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{CJ6ET4USYDNYFHY5BEVDDN7PL6}

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	2026-05-18T02:57:24.526457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

127c49f292c0db829f1d092a31b7ef5fb91c15d0d0ace2f9306367d19d4f1a94

Aliases

arxiv: math/0701297 · arxiv_version: math/0701297v1 · doi: 10.48550/arxiv.math/0701297 · pith_short_12: CJ6ET4USYDNY · pith_short_16: CJ6ET4USYDNYFHY5 · pith_short_8: CJ6ET4US

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/CJ6ET4USYDNYFHY5BEVDDN7PL6 \
  | 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: 127c49f292c0db829f1d092a31b7ef5fb91c15d0d0ace2f9306367d19d4f1a94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1518471d99ac8ca110b7f9ac9040125a7c1d0172a5e6ec331aa2a307449d4015",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2007-01-10T15:41:11Z",
    "title_canon_sha256": "0b6c1364111aeae791d58bc8d6debd5f13b4a415d7f1a99e31393041844a9863"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0701297",
    "kind": "arxiv",
    "version": 1
  }
}