Pith Number

pith:ZGTXEI7L

pith:2016:ZGTXEI7LY62OM67UDD35EZRM2O

not attested not anchored not stored refs pending

Canonical surfaces of higher degree

Fabrizio Catanese (Universitaet Bayreuth)

arxiv:1602.01514 v1 · 2016-02-04 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZGTXEI7LY62OM67UDD35EZRM2O}

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	2026-05-18T01:21:18.787126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9a77223ebc7b4e67bf418f7d2662cd39b2f15fc27bbaffcbe7f0211708df1c0

Aliases

arxiv: 1602.01514 · arxiv_version: 1602.01514v1 · doi: 10.48550/arxiv.1602.01514 · pith_short_12: ZGTXEI7LY62O · pith_short_16: ZGTXEI7LY62OM67U · pith_short_8: ZGTXEI7L

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/ZGTXEI7LY62OM67UDD35EZRM2O \
  | 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: c9a77223ebc7b4e67bf418f7d2662cd39b2f15fc27bbaffcbe7f0211708df1c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "607340977de11fc62bf0273e081a8980868c8277bdf6bb653cc56bbfea617e67",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-02-04T00:24:44Z",
    "title_canon_sha256": "86c9fddc8961f77ad04eae1019dedf71c6306db85120f65a348248e5d4ac6c04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01514",
    "kind": "arxiv",
    "version": 1
  }
}