Pith Number

pith:W6IEIPXW

pith:2014:W6IEIPXWHGDXFTN4VX5CPS5GZ5

not attested not anchored not stored refs pending

Ricci Tensor for Diffusion Operators and Curvature-Dimension Inequalities under Conformal Transformations and Time Changes

Karl-Theodor Sturm

arxiv:1401.0687 v3 · 2014-01-03 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W6IEIPXWHGDXFTN4VX5CPS5GZ5}

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	2026-05-18T00:38:31.646939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b790443ef6398772cdbcadfa27cba6cf58b91496a8a611ca0f54969dc2407713

Aliases

arxiv: 1401.0687 · arxiv_version: 1401.0687v3 · doi: 10.48550/arxiv.1401.0687 · pith_short_12: W6IEIPXWHGDX · pith_short_16: W6IEIPXWHGDXFTN4 · pith_short_8: W6IEIPXW

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/W6IEIPXWHGDXFTN4VX5CPS5GZ5 \
  | 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: b790443ef6398772cdbcadfa27cba6cf58b91496a8a611ca0f54969dc2407713

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9cf7f81239617abc8d7022e02389090f11bf5e2413b7ec2722fc9cc58736944",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-01-03T17:35:24Z",
    "title_canon_sha256": "a2e2bfd005578c2303601baee2f3aa39dfa8f1d719a41e32fb649450683e36e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0687",
    "kind": "arxiv",
    "version": 3
  }
}