Pith Number

pith:CVA4GK7I

pith:2015:CVA4GK7IBHGGBBDGETLCVEUXDA

not attested not anchored not stored refs pending

Counting Lines on Quartic Surfaces

S{\l}awomir Rams, V\'ictor Gonz\'alez-Alonso

arxiv:1505.02018 v1 · 2015-05-08 · 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{CVA4GK7IBHGGBBDGETLCVEUXDA}

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	2026-05-18T00:44:10.134019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1541c32be809cc60846624d62a929718074e3d8b7b75b9a0e0bdec52b4bce129

Aliases

arxiv: 1505.02018 · arxiv_version: 1505.02018v1 · doi: 10.48550/arxiv.1505.02018 · pith_short_12: CVA4GK7IBHGG · pith_short_16: CVA4GK7IBHGGBBDG · pith_short_8: CVA4GK7I

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/CVA4GK7IBHGGBBDGETLCVEUXDA \
  | 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: 1541c32be809cc60846624d62a929718074e3d8b7b75b9a0e0bdec52b4bce129

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1caa52fdd074f115f4603dd83189cae774d25de4a3d4c1c08102e5e29fbcce42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-05-08T12:44:37Z",
    "title_canon_sha256": "ff2b7d8d493e11c05e6a9c3f47758101b840f085a65cba7b57405b75ef3b2905"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02018",
    "kind": "arxiv",
    "version": 1
  }
}