Pith Number

pith:SPKQKDZX

pith:2017:SPKQKDZXC5UG4ED6QW5GXBUOYY

not attested not anchored not stored refs pending

On separable higher Gauss maps

Atsushi Ito, Katsuhisa Furukawa

arxiv:1702.06010 v1 · 2017-02-20 · 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{SPKQKDZXC5UG4ED6QW5GXBUOYY}

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	2026-05-18T00:50:24.592157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d5050f3717686e107e85ba6b868ec637b1c080c9835cf65979d23231b3b000

Aliases

arxiv: 1702.06010 · arxiv_version: 1702.06010v1 · doi: 10.48550/arxiv.1702.06010 · pith_short_12: SPKQKDZXC5UG · pith_short_16: SPKQKDZXC5UG4ED6 · pith_short_8: SPKQKDZX

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/SPKQKDZXC5UG4ED6QW5GXBUOYY \
  | 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: 93d5050f3717686e107e85ba6b868ec637b1c080c9835cf65979d23231b3b000

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38d6cd78cfe4c686bba14b37f8e1d38ea9c5dc8f4fe14b690d84959d541d78c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-02-20T15:25:59Z",
    "title_canon_sha256": "c5276beab1eb5937a7cc64859dd3057977aa69dd89c74ebd83866351b7930809"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06010",
    "kind": "arxiv",
    "version": 1
  }
}