Pith Number

pith:IOD5ZAAQ

pith:2017:IOD5ZAAQN6D77HE32OE4BZUCSO

not attested not anchored not stored refs pending

Derived equivalences and Kodaira fibers

Ana Cristina L\'opez Mart\'in, Carlos Tejero Prieto

arxiv:1702.00229 v1 · 2017-02-01 · 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{IOD5ZAAQN6D77HE32OE4BZUCSO}

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	2026-05-18T00:21:14.693967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4387dc80106f87ff9c9bd389c0e68293bcd3b732e662627a1ee60084ec2ba568

Aliases

arxiv: 1702.00229 · arxiv_version: 1702.00229v1 · doi: 10.48550/arxiv.1702.00229 · pith_short_12: IOD5ZAAQN6D7 · pith_short_16: IOD5ZAAQN6D77HE3 · pith_short_8: IOD5ZAAQ

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/IOD5ZAAQN6D77HE32OE4BZUCSO \
  | 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: 4387dc80106f87ff9c9bd389c0e68293bcd3b732e662627a1ee60084ec2ba568

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3be724b7909024bcd28870fb9cf0e8bb89d10461c2f54fb90b4b409bcef0e0f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-02-01T12:54:11Z",
    "title_canon_sha256": "75102d5593f0844875c7b756ebf5b852ec7677b38453e300b2ed3ba8b58bd88e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00229",
    "kind": "arxiv",
    "version": 1
  }
}