Pith Number

pith:YBUSLGJ7

pith:2012:YBUSLGJ75T577GPV6IXWBM6I4O

not attested not anchored not stored refs pending

Essential normality and the decomposability of algebraic varieties

Matthew Kennedy, Orr Shalit

arxiv:1207.2808 v3 · 2012-07-11 · math.OA · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YBUSLGJ75T577GPV6IXWBM6I4O}

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	2026-05-18T02:51:50.325599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c06925993fecfbff99f5f22f60b3c8e39cd0a7ff5dbc618060924795be7b6dfe

Aliases

arxiv: 1207.2808 · arxiv_version: 1207.2808v3 · doi: 10.48550/arxiv.1207.2808 · pith_short_12: YBUSLGJ75T57 · pith_short_16: YBUSLGJ75T577GPV · pith_short_8: YBUSLGJ7

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/YBUSLGJ75T577GPV6IXWBM6I4O \
  | 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: c06925993fecfbff99f5f22f60b3c8e39cd0a7ff5dbc618060924795be7b6dfe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "086542e0c2892c279c950281d92f54bd43c4db3c56caee4e00529a65e65579d7",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2012-07-11T22:50:36Z",
    "title_canon_sha256": "cd181a98143f6762549b564fb8f59e803e8abde834f947c6fee1bad20273c13a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2808",
    "kind": "arxiv",
    "version": 3
  }
}