Pith Number

pith:6M42ZSYN

pith:2013:6M42ZSYNOQQCJMBXW37XDXA6FH

not attested not anchored not stored refs pending

On the rational Picard group of the moduli space of higher spin curves

Letizia Pernigotti

arxiv:1301.5207 v3 · 2013-01-22 · 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{6M42ZSYNOQQCJMBXW37XDXA6FH}

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	2026-05-18T03:18:51.522276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f339accb0d742024b037b6ff71dc1e29c66eb8d91f882b5c0c79f323f6bb8370

Aliases

arxiv: 1301.5207 · arxiv_version: 1301.5207v3 · doi: 10.48550/arxiv.1301.5207 · pith_short_12: 6M42ZSYNOQQC · pith_short_16: 6M42ZSYNOQQCJMBX · pith_short_8: 6M42ZSYN

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/6M42ZSYNOQQCJMBXW37XDXA6FH \
  | 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: f339accb0d742024b037b6ff71dc1e29c66eb8d91f882b5c0c79f323f6bb8370

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e7401aa8343971ebb0728d108d330ae6ba6a4d87703d4e56bcf6e1e0147a643",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-01-22T15:10:07Z",
    "title_canon_sha256": "28ad6a0223e1cff23f23354c13102b3eb29cc6da678791ee97b93853a28edb51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5207",
    "kind": "arxiv",
    "version": 3
  }
}