Pith Number

pith:W2M24Y5G

pith:2016:W2M24Y5G3ZVA5GDAO232HGUYDY

not attested not anchored not stored refs pending

Classification of double octic Calabi-Yau threefolds

Beata Kocel-Cynk, Slawomir Cynk

arxiv:1612.04364 v1 · 2016-12-13 · 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{W2M24Y5G3ZVA5GDAO232HGUYDY}

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	2026-05-17T23:52:56.244232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b699ae63a6de6a0e986076b7a39a981e0ebec704acd58405ca0ea30eeecab0ae

Aliases

arxiv: 1612.04364 · arxiv_version: 1612.04364v1 · doi: 10.48550/arxiv.1612.04364 · pith_short_12: W2M24Y5G3ZVA · pith_short_16: W2M24Y5G3ZVA5GDA · pith_short_8: W2M24Y5G

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/W2M24Y5G3ZVA5GDAO232HGUYDY \
  | 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: b699ae63a6de6a0e986076b7a39a981e0ebec704acd58405ca0ea30eeecab0ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "981ec2948b8b06cc0b2d24c784008ec665cb5e1d60f2a4d767a917c103f58950",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-12-13T20:57:15Z",
    "title_canon_sha256": "c6d24ad07a4aeb5c227b12aec1c41cf330352d9836c5456c7704ebb01a77ec1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04364",
    "kind": "arxiv",
    "version": 1
  }
}