Pith Number

pith:YK2UK5L3

pith:2013:YK2UK5L37P2VEPZR3XRJYDGFR4

not attested not anchored not stored refs pending

Siu-Yeung jet differentials on complete intersection surfaces X^2 in P^4(C)

Joel Merker (LM-Orsay)

arxiv:1312.5688 v1 · 2013-12-19 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YK2UK5L37P2VEPZR3XRJYDGFR4}

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	2026-05-18T03:04:14.304059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2b545757bfbf5523f31dde29c0cc58f38b613f3f6456fedc3f4963e5ad9e1cf

Aliases

arxiv: 1312.5688 · arxiv_version: 1312.5688v1 · doi: 10.48550/arxiv.1312.5688 · pith_short_12: YK2UK5L37P2V · pith_short_16: YK2UK5L37P2VEPZR · pith_short_8: YK2UK5L3

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/YK2UK5L37P2VEPZR3XRJYDGFR4 \
  | 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: c2b545757bfbf5523f31dde29c0cc58f38b613f3f6456fedc3f4963e5ad9e1cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce549dc8e8cda4b9131b285d6df059dd2b0d6787442928fe861b3629582351d1",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-12-19T18:36:50Z",
    "title_canon_sha256": "e7abcdd87407efdfa5c95679828bf51c2c58856d5f91f2d4517f1da427c14514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5688",
    "kind": "arxiv",
    "version": 1
  }
}