Pith Number

pith:RHK2WOLG

pith:2020:RHK2WOLGWMC4Z6ACF4HFHHFNO2

not attested not anchored not stored refs pending

Orbit and Orbit Closure Containments for Cubic Surfaces

Eunice Sukarto

arxiv:2006.11688 v1 · 2020-06-21 · 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{RHK2WOLGWMC4Z6ACF4HFHHFNO2}

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	2026-07-05T01:11:52.715264Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89d5ab3966b305ccf8022f0e539cad76a4dd555fbb718f3501ff78de8aa51799

Aliases

arxiv: 2006.11688 · arxiv_version: 2006.11688v1 · doi: 10.48550/arxiv.2006.11688 · pith_short_12: RHK2WOLGWMC4 · pith_short_16: RHK2WOLGWMC4Z6AC · pith_short_8: RHK2WOLG

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/RHK2WOLGWMC4Z6ACF4HFHHFNO2 \
  | 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: 89d5ab3966b305ccf8022f0e539cad76a4dd555fbb718f3501ff78de8aa51799

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02679571a8d824d0173f5c145b4a4c65194a60f07ad69435e18cc29156a6cdde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2020-06-21T01:37:08Z",
    "title_canon_sha256": "07c7dd317df49e8bfb37e2600e7051dab333e350262c8bf494107bf2f73e60df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.11688",
    "kind": "arxiv",
    "version": 1
  }
}