Pith Number

pith:NTUCYDE6

pith:2015:NTUCYDE6QKTQVOBMOCUYSCROSO

not attested not anchored not stored refs pending

Qualitative aspects of counting real rational curves on real K3 surfaces

Rares Rasdeaconu, Viatcheslav Kharlamov

arxiv:1506.03050 v3 · 2015-06-09 · 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{NTUCYDE6QKTQVOBMOCUYSCROSO}

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	2026-05-18T00:50:48.114525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ce82c0c9e82a70ab82c70a9890a2e93aa926b56791bb51d134602103d87e7f9

Aliases

arxiv: 1506.03050 · arxiv_version: 1506.03050v3 · doi: 10.48550/arxiv.1506.03050 · pith_short_12: NTUCYDE6QKTQ · pith_short_16: NTUCYDE6QKTQVOBM · pith_short_8: NTUCYDE6

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/NTUCYDE6QKTQVOBMOCUYSCROSO \
  | 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: 6ce82c0c9e82a70ab82c70a9890a2e93aa926b56791bb51d134602103d87e7f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8e3f920867a72be98fc82e1884e69c5d490bf119c188635ad1374414e644256",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-06-09T19:16:40Z",
    "title_canon_sha256": "2a62968357dd0b7497b9105f04d28beb82b0ce191a1defcc10686d5c896ca329"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.03050",
    "kind": "arxiv",
    "version": 3
  }
}