Pith Number

pith:VEKNDXRY

pith:2017:VEKNDXRY2MDABFLO3BCPLH3N72

not attested not anchored not stored refs pending

Non-Cohen-Macaulay canonical singularities

S\'andor J. Kov\'acs

arxiv:1703.02080 v3 · 2017-03-06 · 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{VEKNDXRY2MDABFLO3BCPLH3N72}

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	2026-05-17T23:49:22.806425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a914d1de38d30600956ed844f59f6dfe82b4f0fc4ecdaae9755524800392cf43

Aliases

arxiv: 1703.02080 · arxiv_version: 1703.02080v3 · doi: 10.48550/arxiv.1703.02080 · pith_short_12: VEKNDXRY2MDA · pith_short_16: VEKNDXRY2MDABFLO · pith_short_8: VEKNDXRY

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/VEKNDXRY2MDABFLO3BCPLH3N72 \
  | 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: a914d1de38d30600956ed844f59f6dfe82b4f0fc4ecdaae9755524800392cf43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7a0a91dc0037918a8a2eddcb8a0b783128ae01380671a7cc67dedceba421bec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-03-06T19:43:25Z",
    "title_canon_sha256": "ba1f2d48a70928e8559e3e75852f46012e6af10276ecae3b9cfa691343d5e43c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02080",
    "kind": "arxiv",
    "version": 3
  }
}