Pith Number

pith:DTU2IMFE

pith:2018:DTU2IMFEQRSTHJFEUHGLN7RYYJ

not attested not anchored not stored refs pending

Deformation classification of real non-singular cubic threefolds with a marked line

Sergey Finashin, Viatcheslav Kharlamov

arxiv:1803.00535 v2 · 2018-03-01 · 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{DTU2IMFEQRSTHJFEUHGLN7RYYJ}

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	2026-05-17T23:52:24.524379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ce9a430a4846533a4a4a1ccb6fe38c25b7938e5cc2aeed5617b2eadc2891caa

Aliases

arxiv: 1803.00535 · arxiv_version: 1803.00535v2 · doi: 10.48550/arxiv.1803.00535 · pith_short_12: DTU2IMFEQRST · pith_short_16: DTU2IMFEQRSTHJFE · pith_short_8: DTU2IMFE

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/DTU2IMFEQRSTHJFEUHGLN7RYYJ \
  | 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: 1ce9a430a4846533a4a4a1ccb6fe38c25b7938e5cc2aeed5617b2eadc2891caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60aa96c95bcfece50f6dd91544f0e1472d33816f7bf30e06578cefb115e5c037",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-03-01T18:05:05Z",
    "title_canon_sha256": "534ac9e33a24fd34bf90872130befd5c59be0aab55c4f7b1e8b0b72b5e58ff21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.00535",
    "kind": "arxiv",
    "version": 2
  }
}