Pith Number

pith:J3E47BXT

pith:2015:J3E47BXTIDFKBRAQ2DR4AVPRM6

not attested not anchored not stored refs pending

Calabi-Yau Threefolds Fibred by Mirror Quartic K3 Surfaces

Alan Thompson, Andrew Harder, Andrey Y. Novoseltsev, Charles F. Doran

arxiv:1501.04019 v2 · 2015-01-16 · 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{J3E47BXTIDFKBRAQ2DR4AVPRM6}

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	2026-05-18T01:13:28.745288Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ec9cf86f340caa0c410d0e3c055f1678dddf7e2f4808c17e7126eab49b30908

Aliases

arxiv: 1501.04019 · arxiv_version: 1501.04019v2 · doi: 10.48550/arxiv.1501.04019 · pith_short_12: J3E47BXTIDFK · pith_short_16: J3E47BXTIDFKBRAQ · pith_short_8: J3E47BXT

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/J3E47BXTIDFKBRAQ2DR4AVPRM6 \
  | 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: 4ec9cf86f340caa0c410d0e3c055f1678dddf7e2f4808c17e7126eab49b30908

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d454a480a33b0b14ad52a65d57b4192160d1019dcf885b721990da247d1ccb44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-16T15:42:36Z",
    "title_canon_sha256": "d34f31aab3510901a3c56fa0b3cf86c98c86e9077f0d680270e69f4c6727625b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04019",
    "kind": "arxiv",
    "version": 2
  }
}