Pith Number

pith:6OMQHKL7

pith:2016:6OMQHKL75KBBVFVJX6WRFEA4ZG

not attested not anchored not stored refs pending

Characterization of Koll\'ar surfaces

Giancarlo Urz\'ua, Jos\'e Ignacio Y\'a\~nez

arxiv:1612.01960 v1 · 2016-12-06 · math.AG · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6OMQHKL75KBBVFVJX6WRFEA4ZG}

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	2026-05-18T00:08:46.552467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f39903a97fea821a96a9bfad12901cc9b4a732d91ba6940c2aa0f948f073612b

Aliases

arxiv: 1612.01960 · arxiv_version: 1612.01960v1 · doi: 10.48550/arxiv.1612.01960 · pith_short_12: 6OMQHKL75KBB · pith_short_16: 6OMQHKL75KBBVFVJ · pith_short_8: 6OMQHKL7

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/6OMQHKL75KBBVFVJX6WRFEA4ZG \
  | 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: f39903a97fea821a96a9bfad12901cc9b4a732d91ba6940c2aa0f948f073612b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed49f97351d0cc3436354b52f40046e71d64b3e2ccdc833e1778e4907a99d211",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-12-06T19:33:03Z",
    "title_canon_sha256": "17593be70d972d032f0846ace883eae183278a4e1f68f8d3f2698b325167b94e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.01960",
    "kind": "arxiv",
    "version": 1
  }
}