Pith Number

pith:SMQ3IATN

pith:2017:SMQ3IATNU6B3SUW7JNFC2PIVCI

not attested not anchored not stored refs pending

Local cohomology and stratification

Vidit Nanda

arxiv:1707.00354 v2 · 2017-07-02 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMQ3IATNU6B3SUW7JNFC2PIVCI}

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	2026-05-17T23:43:18.578778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9321b4026da783b952df4b4a2d3d151204ca46a4775a5ced2d5b56c749d74290

Aliases

arxiv: 1707.00354 · arxiv_version: 1707.00354v2 · doi: 10.48550/arxiv.1707.00354 · pith_short_12: SMQ3IATNU6B3 · pith_short_16: SMQ3IATNU6B3SUW7 · pith_short_8: SMQ3IATN

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/SMQ3IATNU6B3SUW7JNFC2PIVCI \
  | 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: 9321b4026da783b952df4b4a2d3d151204ca46a4775a5ced2d5b56c749d74290

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2415e486a4576d842ea938ce489446c58a040b1f56afc6f7a81cd50f9ba65002",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2017-07-02T20:56:42Z",
    "title_canon_sha256": "b94be259a89837872050438a925e8e0c889b6c86ebea2d750dfa40b298ad62b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.00354",
    "kind": "arxiv",
    "version": 2
  }
}