Pith Number

pith:5DHCG43Y

pith:2014:5DHCG43YOYXDNKVZILXPFFTKAL

not attested not anchored not stored refs pending

Minkowski bases on algebraic surfaces with rational polyhedral pseudo-effective cone

Piotr Pokora, Tomasz Szemberg

arxiv:1401.0552 v2 · 2014-01-02 · 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{5DHCG43YOYXDNKVZILXPFFTKAL}

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	2026-05-18T01:22:43.813898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8ce237378762e36aab942eef2966a02e407d9592a11a6c87975055cab4c61da

Aliases

arxiv: 1401.0552 · arxiv_version: 1401.0552v2 · doi: 10.48550/arxiv.1401.0552 · pith_short_12: 5DHCG43YOYXD · pith_short_16: 5DHCG43YOYXDNKVZ · pith_short_8: 5DHCG43Y

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/5DHCG43YOYXDNKVZILXPFFTKAL \
  | 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: e8ce237378762e36aab942eef2966a02e407d9592a11a6c87975055cab4c61da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b84b094c0ac971192bfeec0a6949e60bd66f3fad0edc5ae7f91c817f8ac59106",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-01-02T21:49:39Z",
    "title_canon_sha256": "fe2a79c08717b053aa4366cefd9de85d429c0199001763c64313d67b0087ff61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0552",
    "kind": "arxiv",
    "version": 2
  }
}