Pith Number

pith:6QASPYKZ

pith:2012:6QASPYKZWIQNPH5GEVRG7IDWYF

not attested not anchored not stored refs pending

On the first Gaussian map for Prym-canonical line bundles

Caterina Barchielli, Paola Frediani

arxiv:1210.7598 v2 · 2012-10-29 · 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{6QASPYKZWIQNPH5GEVRG7IDWYF}

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	2026-05-18T03:20:06.609476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f40127e159b220d79fa625626fa076c17bb3d79bb22cf20592f599a9fcca344f

Aliases

arxiv: 1210.7598 · arxiv_version: 1210.7598v2 · doi: 10.48550/arxiv.1210.7598 · pith_short_12: 6QASPYKZWIQN · pith_short_16: 6QASPYKZWIQNPH5G · pith_short_8: 6QASPYKZ

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/6QASPYKZWIQNPH5GEVRG7IDWYF \
  | 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: f40127e159b220d79fa625626fa076c17bb3d79bb22cf20592f599a9fcca344f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13747b75694388cf9d5699b2f3838348072554826d69ae52bb93f7fb12fc4bd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-10-29T09:16:27Z",
    "title_canon_sha256": "4d140182cdf02347df3f308f409538b9613ce67f1390a7fd8055463ee611dfa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7598",
    "kind": "arxiv",
    "version": 2
  }
}