Pith Number

pith:CJB3ZDLP

pith:2015:CJB3ZDLP7CZWS4XYJQ7PU5QXMG

not attested not anchored not stored refs pending

Deformations of canonical double covers

Bangere P. Purnaprajna, Francisco Javier Gallego, Miguel Gonzalez

arxiv:1511.06921 v1 · 2015-11-21 · 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{CJB3ZDLP7CZWS4XYJQ7PU5QXMG}

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	2026-05-18T01:26:17.136614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1243bc8d6ff8b36972f84c3efa7617619219c0ecb7358a85b28b92b3194f9ae8

Aliases

arxiv: 1511.06921 · arxiv_version: 1511.06921v1 · doi: 10.48550/arxiv.1511.06921 · pith_short_12: CJB3ZDLP7CZW · pith_short_16: CJB3ZDLP7CZWS4XY · pith_short_8: CJB3ZDLP

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/CJB3ZDLP7CZWS4XYJQ7PU5QXMG \
  | 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: 1243bc8d6ff8b36972f84c3efa7617619219c0ecb7358a85b28b92b3194f9ae8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a29a28bd990260aecde816b81308a92f09502a630296727aaa0facd32e4b6a79",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-11-21T20:41:57Z",
    "title_canon_sha256": "cbf9ad9136047584c85b0c15a5079ab1c915d4586c18d6aba769e30c81069258"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.06921",
    "kind": "arxiv",
    "version": 1
  }
}